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Изобретение относится к лазерной технике. В устройстве и способе генерирования мощного лазерного излучения геометрия лазерного резонатора определяет основную пространственную или поперечную резонаторную моду. Внутри резонатора расположена усиливающая среда, и источник энергии активизирует усиливающую среду в пределах первого объема. Это вызывает спонтанное и вынужденное испускание энергии, распространяющееся в усиливающей среде в направлении, поперечном основной резонаторной моде. Это поперечное испускание энергии, в свою очередь, накачивает второй объем усиливающей среды, расположенный вокруг первого объема. Когда интенсивность испускания достаточно высока, во втором объеме создаются инверсия и усиление. За счет оптимизации геометрии резонатора таким образом, чтобы основная резонаторная мода проходила как через первый, так и через второй объемы, окружая первый накачиваемый объем, поперечно направленная энергия первого объема, которая иначе была бы потеряна, захватывается основным лучом ...

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Изобретение относится к системам радиосвязи и, в частности, к системам радиосвязи, работающим в сетевой среде передачи данных. Сущность состоит в том, что мобильный радиотерминал (MWT) принимает IP-пакеты, предназначенные для наземной сети в заданном порядке следования, фрагментирует каждый из IP-пакетов на более мелкие фрагменты пакетов, добавляет идентификационную информацию в каждый из фрагментов пакетов и передает фрагменты пакетов параллельно друг другу по одновременно действующим спутниковым каналам. Принимающая станция принимает фрагменты пакетов, переданные от MWT, пересылает принятые фрагменты пакетов в наземный контроллер по сетевому соединению на основании идентифицирующей информации, добавленной во фрагменты пакетов. Наземный контроллер объединяет фрагменты пакетов в реконструированные IP-пакеты на основании идентифицирующей информации, добавленной во фрагменты, а также упорядочивает реконструированные IP-пакеты в заданном порядке следования на основании идентифицирующей информации ...

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Сущность изобретения заключается в том, пространственно однородный, коллимированный, имеющий последовательно спектр основных частот световой поток, которые используют для формирования полноцветного изображения, создают непосредственно внутри источника света путем контролируемого по амплитуде импульсного возбуждения излучательных переходов, распределенных в излучающем объеме излучателей со светоотдачей, необходимой для комфортного наблюдения изображения на внешнем экране площадью, много большей площади светомодулятора, и излучающих последовательно свет в соответствующих основным цветам узких спектральных интервалах. Управляют созданным световым потоком с помощью синхронизации процессов выделения спектральных составляющих светового потока с одновременным контролем уровня его яркости и пространственного модулирования с помощью светомодулятора светового потока. Технический результат - упрощение и повышение экономичности. 2 н. и 19 з.п. ф-лы.

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Устройство содержит множество осветительных модулей, каждый из которых включает источник света и оптический элемент, сконфигурированный для приема света из источника света и коллимирования света в пучок, жидкокристаллическую панель дисплея, контроллер, принимающий данные изображения и данные измерений равномерности освещенности, соответствующие действительной освещенности каждой из множества частей жидкокристаллической панели дисплея, и проекционный объектив. Жидкокристаллическая панель дисплея размещена между множеством осветительных модулей и проекционным объективом. Контроллер выполнен с возможностью управления освещенностью в данных изображения посредством корректирования данных изображения для совпадения с действительной, измеренной освещенностью каждой части жидкокристаллической панели, и последующего предоставления скорректированных данных в жидкокристаллическую панель дисплея, или регулирования яркости каждого осветительного модуля на основании данных изображения. 18 з.п. ф-лы, ...

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Оптическая матричная головка, включающая верхнюю и нижнюю ступени, составленные из зеркал/фильтров. Зеркала/фильтры расположены в пространстве так, чтобы организовать с помощью последовательности отражений и/или прохождений из ряда оптических частот, излучаемых определенным числом источников излучения, коллинеарную матричную группу лучей прямоугольной формы. Верхняя ступень состоит из матриц зеркал/фильтров размерностью m×n в количестве p штук, выполненных с наложением друг на друга. Нижняя ступень представляет собой матрицу из m зеркал/фильтров, выстроенных в p строк с возможностью адресации выходящих лучей столбцам матриц верхней ступени. Зеркала/фильтры матриц выполнены с характеристиками, позволяющими пропускать спектр оптических частот входящего луча или его часть и/или передавать спектр оптических частот входящего луча или его часть на следующее зеркало/фильтр. Технический результат заключается в оптимизации процесса частотно-адресной светолучевой маршрутизации. 4 з.п. ф-лы, 11 ил ...

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Изобретение относится к оптическим проекционным системам. Его использование позволяет исключить высокотемпературный процесс из способа изготовления матрицы, тем самым удешевляя его. Матрица содержит активную матрицу, состоящую из подложки, матрицы транзисторов и матрицы выводов, и матрицу возбуждающих структур, каждая из которых представляет собой биморфную структуру и имеет возбуждающую и светоотражающую части. Технический результат достигается благодаря выполнению каждой возбуждающей части из нескольких слоев, включающих в себя тонкопленочные электроды и электросмещаемые элементы, выполненные из материала, характеризующегося тем, что он является кристаллографически асимметричным, не проявляет гистерезиса и образуется при температуре в диапазоне 200-300°С. Способ изготовления такой матрицы включает в себя последовательное нанесение тонкопленочных слоев из соответствующих материалов, включая временные слои. Для получения требуемого профиля каждого слоя и формирования матрицы. 2 с. и 12 ...

СПОСОБ ПОЛУЧЕНИЯ ЦВЕТНЫХ ИЗОБРАЖЕНИЙ

Изобретение относится к технической физике и преназначено для использования в рекламе, в учебном процессе, в цветных дисплеях. Целью изобретения является снижение себестоимости и повышение долговечности. Примером изображения, состоящего из прозрачных линий на черном фоне являются буквы, чертежи, графики, специальным образом изготовленные рисунки, некоторые виды логотипов и товарных знаков. Поворотом диспергирующего элемента на выходе диапроектора можно установить горизонтальное, вертикальное и любое другое направление дисперсии (каждая прозрачная линия в выбранном направлении разлагается в узкую радугу. ) Если диспергирующий элемент вращать достаточно медленно, так, чтобы изменение направления спектрального размытия отслеживалось глазом, цвета изображения будут также медленно изменяться. Так как величина спектрального размытия меньше расстояния между прозрачными линиями, то изображение не размывается до потери информативности и наблюдается так, как будто его каждая линия была нарисована ...

ЛАЗЕРНЫЙ ПРОЕКТОР

Лазерный проектор относится к системам воспроизведения изображений, а более конкретно к технике видеопроекции, которая может быть использована в области геодезического приборостроения, в частности в лазерных приборах для построения плоскостей, которые предназначены для проведения разбивочных работ в строительстве, при монтаже технического оборудования, а также в других областях науки и техники, где требуется использование световой плоскости и возможность переноса отметок в горизонтальных и вертикальных плоскостях. Лазерный проектор содержит проекционный элемент для вывода изображения, который может представлять собой как воспроизведение чего-либо, так и воспроизведение проекции разметочных осей, систему питания и управления. Также лазерный проектор содержит электронный блок коррекции положения проецируемого изображения, связанный с многокоординатным датчиком положения проекционного элемента и интерфейс загрузки файлов изображения. Технический результат - осуществление автоматической коррекции ...

СПОСОБ МНОГОПРОГРАММНОГО ТЕЛЕВИЗИОННОГО ВЕЩАНИЯ

Сущность изобретения: способ многогранного ТВ вешания основан на формировании полиэкранного ТВ изображения. Для обеспечения полного охвата всех телезрителей, существенного сокращения сроков внедрения и материальных затрат, а также повышения информативности передаваемых изображений и оперативности выбора программ в месте приема ТВ полиэкранное изображение формируют непосредственно в пункте распределения и передачи ТВ программ с помощью устройств видеоэффектов, затем сформированный сигнал передают в специально выделенном для этой цели обзорном канале, при этом в состав полиэкранного изображения вводят также служебное изображение точного времени, а к дополнительным изображениям - номера их ТВ каналов, визуальные и звуковые указатели, характеризующие временное состояние каждой передачи.

СПОСОБ ПРОЕЦИРОВАНИЯ ЦВЕТНОГО ИЗОБРАЖЕНИЯ НА ЭКРАН

Изобретение относится к технике проецирования цветного изображения на экран. Технический результат состоит в существенном уменьшении числа импульсных сигналов управления, числа уровней в градации отображаемой на экране яркости каждого основного цвета. Для этого в способе формируют три световых пучка, соответствующих трем основным цветам, направляют каждый пучок на соответствующий ему пространственный модулятор света (ПМС) и равномерно освещают матрицу его элементов. В соответствии с видеоинформацией, содержащейся в соответствующем кадре проецируемого на экран изображения, с помощью ПМС осуществляют в течение длительности этого кадра пространственную модуляцию распределения световой энергии по сечению каждого из упомянутых выше световых пучков, которые затем сводят в один пучок и с помощью оптической проекционной системы направляют на экран, при этом каждому элементу в проецируемом на экран изображении соответствуют три элемента, которые расположены по одному соответственно в каждом ПМС ...

СПОСОБ ПРОИЗВОДСТВА СТАТИЧЕСКИХ И ДИНАМИЧЕСКИХ ЛАЗЕРНЫХ МНОГОЦВЕТНЫХ ИЗОБРАЖЕНИЙ И ЛАЗЕРНЫЙ ПРОЕКТОР ДЛЯ ЕГО РЕАЛИЗАЦИИ

Способ производства статических и динамических лазерных полноцветных изображений и лазерный проектор для его реализации позволяют получить крупномасштабные лазерные графические изображения, в которых яркость, цветность и количество элементов полностью идентичны исходному компьютерному изображению. Лазерные изображения строят независимым, поэлементным и дискретным позиционированием лазерных пучков трех основных цветов (красного, зеленого, синего) в плоскости наблюдения при помощи акусто-оптических дефлекторов, входящих в схему лазерного проектора, на основании управляющих электрических сигналов, подаваемых программным устройством. Процесс образования лазерного изображения контролируется программным устройством в соответствии с программой преобразования информации, содержащейся в исходном графическом компьютерном изображении. Технический результат - преобразование и дистанционное воспроизведение при помощи лазерного проектора статистических и динамических многоцветных компьютерных изображений ...

СИСТЕМА И СПОСОБ ПРОЕЦИРОВАНИЯ ДЛЯ КОРРЕКЦИИ РАВНОМЕРНОСТИ

Изобретение относится к системам и способам проецирования. Техническим результатом является обеспечение коррекции ошибок равномерности отображаемого изображения. Результат достигается тем, что проекционная система содержит источник света, выполненный с возможностью излучать свет в ответ на данные изображений, оптическую систему, выполненную с возможностью проецировать свет, излучаемый посредством источника света. При этом способ калибровки, реализуемый упомянутой системой, включает следующие этапы: прием ввода, ассоциированного с множеством световых значений, соответствующих множеству первичных световых полей; преобразование ввода, ассоциированного с множеством световых значений, во множество значений первичных цветов проектора; определение карты усилений на основе множества значений первичных цветов проектора; применение карты усилений к изображению для того, чтобы выполнять коррекцию равномерности цветности посредством регулирования уровней множества первичных световых полей таким образом ...

ОСВЕТИТЕЛЬНАЯ СИСТЕМА, СПОСОБ И ПРОЕКЦИОННОЕ УСТРОЙСТВО ДЛЯ УПРАВЛЕНИЯ СВЕТОМ, ИСПУСКАЕМЫМ В ТЕЧЕНИЕ СПИЦЕВОГО ПЕРИОДА ВРЕМЕНИ

... 1. Осветительная система для проекционного устройства, причем осветительная система содержит источник света, цветовой диск и узел возбуждения для возбуждения источника света, ! причем цветовой диск содержит множество цветовых сегментов (R, G, В), определяющих цвет света, испускаемого осветительной системой, причем цветовой диск сконфигурирован для последовательного расположения цветовых сегментов (R, G, В) из множества цветовых сегментов (R, G, В) на оптическом пути между источником света и окном вывода света посредством вращения цветового диска, причем спица цветового диска является границей между двумя соседними цветовыми сегментами (R, G, В), ! причем источник света содержит первый светоизлучающий узел и второй светоизлучающий узел, причем каждый испускает свет в направлении окна вывода света осветительной системы, ! причем первый светоизлучающий узел, второй светоизлучающий узел и спица сконфигурированы для предотвращения, чтобы спица, при пересечении оптического пути между источником ...

ПРОЕКЦИОННЫЕ ДИСПЛЕИ С ВЫСОКОЙ СВЕТИМОСТЬЮ И СВЯЗАННЫЕ СПОСОБЫ

... 1. Проекторная система высокой яркости, содержащая:процессор изображений, сконфигурированный для обработки данных изображения с целью выдачи основного изображения и изображения высокой яркости, содержащего зоны высокой яркости, посредством сравнения светимости пикселов в данных изображения с первым пороговым значением и распознавания в данных изображения пикселов, для которых светимость превышает первое пороговое значение, как принадлежащих к зонам высокой яркости; ипроектор высокой яркости, действующий для проецирования света в соответствии с изображением высокой яркости, в совмещении с основным изображением для обеспечения увеличенной светимости в зонах высокой яркости.2. Проекторная система высокой яркости по п. 1, отличающаяся тем, что процессор изображений сконфигурирован для генерирования изображения высокой яркости так, чтобы не более чем предварительно определенное количество пикселов на изображении высокой яркости имело значения светимости, превышающие второе пороговое значение ...

ПРОЕКТОР

... 1. Проектор, содержащий:осветитель, включающий в себя устройство с источником света, которое выдает приведенный к параллельному свет и включает в себя следующие компоненты:твердотельный источник света, который создает свет возбуждения, флуоресцентный слой, который создает флуоресценцию из части света возбуждения, излучаемого из твердотельного источника света, и коллиматорную систему, которая приводит к параллельному свет из флуоресцентного слоя;модулятор света, который модулирует свет из осветителя в соответствии с информацией изображения; ипроекционную систему, которая проецирует свет из модулятора света,причем осветитель дополнительно включает в себяэлемент преобразования поляризации, который преобразует свет из устройства с источником света в поляризованный свет, иотражатель, который размещен между устройством с источником света и элементом преобразования поляризации, пропускает свет в окрестности оптической оси устройства с источником света и отражает периферийный свет в отдалении от ...

ПРОЕКТОР

... 1. Проектор, содержащий:твердотельный источник света, который излучает свет возбуждения;вращающуюся люминофорную пластину, которая преобразует свет возбуждения в люминесцентный свет;светомодулирующее устройство, которое модулирует свет от вращающейся люминофорной пластины;проекционную оптическую систему, которая проецирует свет, модулированный светомодулирующим устройством, на экран, иуправляющее устройство, которое управляет твердотельным источником света и вращающейся люминофорной пластиной так, что удовлетворяется любое одно из следующих условных выражений:А=ВА=2В|А-В| больше или равно 20 и |А-2В| больше или равно 20,где А представляет собой управляющую частоту широтно-импульсной модуляции твердотельного источника света в герцах, а В представляет собой частоту вращения вращающейся люминофорной пластины в герцах.2. Проектор по п. 1, в котором управляющая частота широтно-импульсной модуляции твердотельного источника света больше или равна частоте кадров изображения, отображаемого на экране ...

СПОСОБ ПРОИЗВОДСТВА СТАТИЧЕСКИХ И ДИНАМИЧЕСКИХ ЛАЗЕРНЫХ МНОГОЦВЕТНЫХ ИЗОБРАЖЕНИЙ И ЛАЗЕРНЫЙ ПРОЕКТОР ДЛЯ ЕГО РЕАЛИЗАЦИИ

... 1. Способ производства статических и динамических лазерных многоцветных изображений на плоскости наблюдения лазерными пучками трех основных цветов, отличающийся тем, что лазерные изображения формируют на плоскости наблюдения дискретно по элементам изображения, при этом лазерные пучки каждого основного цвета независимо направляют в N•M элементов лазерного изображения на плоскости наблюдения, соответствующих N•M элементам исходного графического компьютерного изображения. 2. Способ по п. 1, отличающийся тем, что образование дополнительных цветов производят путем многократного позиционирования каждого из лазерных пучков в один и тот же элемент изображения на плоскости наблюдения. 3. Способ по п. 1, отличающийся тем, что образование дополнительных цветов производят путем управления интенсивностью лазерных пучков. 4. Лазерный проектор для производства статических и динамических лазерных многоцветных изображений, содержащий последовательно расположенные и оптически связанные между собой источник ...

ОДНО- И МНОГОМОДУЛЯТОРНЫЕ ПРОЕКЦИОННЫЕ СИСТЕМЫ С ГЛОБАЛЬНЫМ РЕГУЛИРОВАНИЕМ ЯРКОСТИ

Устройство отображения знакоцифровой цветовой информации

Изобретение может быть использовано в проекционных системах Цель изобретения - повышение качес ва отображаемой информации путем увеличения количества градаций. Устройство содержит блок 1 элек- тронно-лучевой трубки (ЭЛТ), блок 2 управ-о ления ЭЛТ.резистивную матрицу, состоящую из резисторов 3-5, сумматор 6, много- слойную структуру, состоящую из последовательно расположенных входного оптического стекла 7, первого прозрачного электрода 8, диэлектрика 9, фотополупроводника 10, диэлектрического зеркала 11, первого ориентирующего слоя 12, слоя 13 жидкого кристалла, второго ориентирующего слоя 14, второго прозрачного электрода 15 и выходного оптического стекла 16, а также тракт считывания, состоящий из источника 17 излучения оптического диапазона , коллиматора 18, поляризатора 19 анализатора 20, проекционного объектива 21 иэкрана22,и генератора23 переменного напряжения. 1 з.п. ф-лы, 1 ил. сл С 23 4 О Ь 00 VJ ...

Экран приемной трубки для цветного телевидения

TEЛEBИЗИOHHЫЙ ПPOEKTOP ЦBETHOГO ИЗOБPAЖEHИЯ

Устройство для проекционной системы цветного телевидения

VORRICHTUNG ZUR PROJEKTION VON FARBDARSTELLUNGEN

PROJEKTIONSGERAET FUER DIE GROSSBILDPROJEKTION

FLÜSSIGKRISTALLPROJEKTOR MIT HOLOGRAPHISCHER FILTERVORRICHTUNG

Durchlicht-Projectionsschirm

FARBSICHTANZEIGEVORRICHTUNG VOM PROJEKTIONSTYP.

Laserprojektionsmodul und Verfahren zum Betrieb eines Laserprojektionsmoduls

Es wird ein Laserprojektionsmodul zur Projektion eines digitalen Bildes auf eine Projektionsfläche vorgeschlagen, wobei das Laserprojektionsmodul ein erstes Laserelement zur Erzeugung eines ersten Laserstrahls, ein zweites Laserelement zur Erzeugung eines zweiten Laserstrahls und einen mikromechanischen Scanspiegel zur Ablenkung des ersten und zweiten Laserstrahls umfasst, wobei das Laserprojektormodul eine Steuereinrichtung zur Steuerung des ersten und zweiten Laserelements aufweist, wobei die Steuereinrichtung derart konfiguriert ist, dass, in einer Ablenkstellung des mikromechanischen Scanspiegels, mit dem ersten Laserstrahl ein erstes Bildfarbelement auf einen ersten Pixelbereich projiziert wird und, in der Ablenkstellung des mikromechanischen Scanspiegels, mit dem zweiten Laserstrahl ein zweites Bildfarbelement auf einen separaten zweiten Pixelbereich projiziert wird.

Projektionsfernsehgerät mit Paritätsfehlerüberprüfung

Die Erfindung betrifft ein Projektionsfernsehgerät, insbesondere ein Projektionsfernsehgerät mit einer Konvergenzkorrektur. Bei dem erfindungsgemäßen Projektionsfernsehgerät werden die Abbildungen von drei monochromatischen Farbbildröhren derart beeinflußt, daß diese unter Vermeidung geometrischer Verzerrungen auf einem Schirm zur Deckung gelangen. Diese Beeinflussung wird durch eine Konvergenzeinrichtung erreicht, die an den Bildröhren angeordnete Konvergenzablenkspulen mit entsprechenden Konvergenzströmen beaufschlagt. Die Konvergenzkorrektur wird anhand von Korrekturwerten vorgenommen, die in einem RAM-Speicher abgespeichert sind. Diese Daten werden beim Einschalten des Gerätes aus einem nicht flüchtigen Speicher in den RAM-Speicher kopiert. Erfindungsgemäß untersucht die Steuerschaltung die kopierten Konvergenzdaten auf Fehler, um sicherzustellen, daß keine fehlerhaften Konvergenzdaten zur Konvergenzkorrektur verwendet werden.

FARBWIEDERGABESYSTEM UNTER AUSNUTZUNG DES FARADAY-KOEFFIZIENTEN EINES MAGNETSCHIRMES

Verfahren zur Projektion eines durch Anwendung von Flüssigkristallanzeigen erhaltenen Bildes und Anzeigevorrichtung zur Durchführung des Verfahrens

Flüssigkristall-Anzeigevorrichtung vom Projektionstyp

FARBBILD-PROJEKTIONSVORRICHTUNG

TELEPROJEKTOR ANORDNUNG MIT PARITÄTISCHER FEHLERÜBERPRÜFUNG

FARBBILDPROJEKTIONSSYSTEM.

Kontrastreiches Anzeigesystem mit abgetasteter konformer Gittervorrichtung

Rastersequentielles Anzeigesystem mit einer von der Rückseite beleuchtbaren Anordnung von Flüssigkristallbildelementen und Verfahren zur Bilderzeugung

Vier-Richtungs-Fotodiodensensor zur Unterdrückung des Umgebungslichts

Bildanzeigevorrichtung und Anzeigekorrekturverfahren

Die vorliegende Erfindung sieht eine Bildanzeigevorrichtung vor, die in der Lage ist, eine Farbveränderung eines angezeigten Bilds aufgrund von Veränderungen der Wellenlänge von von Lichtquellen emittiertem Licht zu verringern. Eine Bildanzeigevorrichtung enthält: eine Lichtquelleneinheit (110) enthaltend drei oder mehr Lichtquellen (111R, 111G, 111B), die Licht mit unterschiedlichen Wellenlängen emittieren, wobei die Lichtquelleneinheit die von den drei oder mehr Lichtquellen emittierten Lichtstrahlen kombiniert und das kombinierte Licht emittiert; und einen Wellenlängendetektor (134), der für jede der Lichtquellen Wellenlängeninformationen, die die Wellenlänge des von der Lichtquelle emittierten Lichts anzeigen, erfasst, wobei die Bildanzeigevorrichtung Intensitäten der Lichtstrahlen von den Lichtquellen auf der Grundlage von Beträgen von Änderungen der von dem Wellenlängendetektor erfassten Wellenlängen ändert, wodurch eine Farbe des durch die Lichtquelleneinheit kombinierten Lichts ...

Modulationssystem für eine Projektionsanzeige

Projektionsanzeigevorrichtung

Kinoprojektor mit räumlichen Lichtmodulatoren

Kompaktes Beleuchtungssystem und damit versehene Projektionsanzeigevorrichtung

Optisches System und Bildanzeige unter Verwendung dieses Systemes

PROJECTION TELEVISION DISPLAY DEVICE

Umschaltkreis zur Fokussierungsregelung für Projektionsfernsehempfänger.

PROJEKTIONSSICHTGERÄT MIT OPTISCHEM SCHREIBEN.

Farbstoff enthaltendes optisches Formteil für Kathodenstrahlröhre

Projection arrangement for displaying illuminated images, has projection optics provided with imaging optics and mirror

A projection arrangement has a light source (1) for generating an illuminated field (2), a reflective light modulator (4) receiving the light coming from the illuminated field (2), and image-projection optics (5). The projection optics (5) comprise imaging optics with a mirror (9) and lenses (6,7,8), arranged between the light modulator (4) and the mirror(9), where the light coming from light modulator (4) and reflected at the mirror (9) passes twice through the lenses (6,7,8) and the light coming from the illuminated field (2) and which the light modulator (4) sees, passes only once through the lenses (6,7,8) of the imaging optics (5).

Projektionsanzeigevorrichtung

Flat panel display screen has images projected onto anti reflection coated surface on a carrier material.

... the flat panel display screen has a carrier plate [2] of transparent material with a textured surface [3] onto which images are directed. The screen brightness is given by a coating [4] of plastic thin film. The viewing surface is coated [5] with an anti reflection coating. A protective plate with a coating [7] completes the assembly.

Videoprojektionssystem und Verfahren zum Projizieren von Videodaten mittels eines Lasers auf eine Projektionsfläche

The invention relates to a video projection system that is provided with a laser that emits a laser beam. The laser beam is deflected onto the projection surface by means of a deflection unit. The projection surface contains luminous substances which generate light beams when the laser beam impinges, whereby said light beams have a predetermined wavelength. The light beams generated by the luminous substances are detected using a detection unit. The intensity of the laser beam is controlled according to desired video data and the detected light beams and by means of a control unit.

Panorama-Bildprojektor

Die Erfindung betrifft einen Panorama-Bildprojektor, umfassend einen Projektor (1) und eine Datenquelle, wobei der Projektor (3) eine Lichtquelle (2), mindestens ein von der Datenquelle ansteuerbares LCD-Element oder LCD-Elemente zur Erzeugung eines panchromatischen oder R-, G- und B-Bildes und eine Projektionsoptik (7) umfasst, wobei das oder die LCD-Elemente zeilenförmig ausgebildet sind und einen zeilenförmigen Ausschnitt eines Panoramabildes erzeugen, dessen zeilenförmig zusammengesetzte Datenbasis in der Datenquelle abgespeichert ist, wobei der Projektor (1) synchronisiert zur Zeilenfrequenz der Datenquelle rotierbar antreibbar ist oder die Projektionsoptik (7) den zeilenförmigen Ausschnitt auf mindestens einen Spiegel (10) abbildet und der Spiegel (10) synchronisiert zur Zeilenfrequenz der Datenquelle rotierbar antreibbar ist.

Projektionsanzeigevorrichtung

Farbrad für eine Anzeigevorrichtung

Verfahren zur Einstellung des Farbeindrucks eines optischen Projektionsgeräts und optisches Projektionsgerät

Verfahren zur Einstellung des Farbeindrucks eines optischen Projektionsgeräts, wobei während einer vorgebbaren ersten Zeitspanne (t): – ein Vollfarbbild erzeugt wird und – für drei vorgebbare zweite Zeitspannen (trgb) Leuchteinheiten (R, G, B) gleichzeitig betrieben werden, so dass sich während der zweiten Zeitspannen (trgb) das von den Leuchteinheiten (R, G, B) erzeugte Licht zu weißem Licht mischt, und – sich an die zweiten Zeitspannen (trgb) dritte Zeitspannen (tr, tg, tb) zur Erzeugung von verschiedenen einfarbigen Teilbildern anschließen, wobei die Leuchteinheiten (R, G, B) jeweils wenigstens eine Leuchtdiode aufweisen.

VERFAHREN UND VORRICHTUNG ZUR BESEITIGUNG VON BILDSPECKLES BEI SCANNENDER LASERBILDPROJEKTION

OPTISCHES BELEUCHTUNGSSYSTEM FÜR EIN VIDEOPROJEKTIONSGERÄT

Anzeigeeinheit und Projektionsvorrichtung für Bildsequenzen

FARBVERWALTUNGSSYSTEM

BILDWIEDERGABEVORRICHTUNG

FARBVERWALTUNGSSYSTEM

PROJEKTIONSANZEIGEVORRICHTUNG

Dreistrahl-Projektionsgerät

Projection system for projecting a colour video image (video picture), and an associated transformation optical system (transformation optics)

In a projection system for projecting a video image composed of pixels onto a screen (54) and having at least one light source (10; 20; 30), which emits a light bundle and is of variable intensity, and a deflecting device (44, 46) which deflects the light bundle for the purpose of illuminating the pixels on the screen (54), a transformation optical system (50) which has at least two stages is arranged between the deflecting device (44, 46) and screen (54). Said system is corrected without distortion using the tangent condition and comprises, for its part, at least two optical stages. The first optical stage generates an intermediate image plane which is imaged on the screen by the following optical stage or stages. ...

PROJEKTIONSANZEIGEVORRICHTUNG

Projektionsanzeigesystem für reflektierende Lichtventile

Projektor mit dichroitisches Kreuzprisma

Vorrichtung und Verfahren zur Index-Verstellung eines Farbrades

Projection apparatus for projecting video signal to projection surface, has projection unit for generating broadcasting light signal based on video input signal

The projection apparatus (100) has a projection unit (PE) for generating a broadcasting light signal based on a video input signal (IN). A sensor unit (SE) is provided for detecting the location information regarding a person (200) between the projection apparatus and a projection surface (300). A correction unit (K) is provided for calculating a correction signal based on the location information collected by the sensor unit. An independent claim is also included for a method for projecting a video signal to a projection surface.

Local dimming on screens for improved image uniformity in scanning beam display systems

A display system has light sources that produce one or more optical beams (120). A signal modulation controller 320 modulates the beams to form optical pulses that carry images to be displayed. A screen (101) receives the beams to display images carried by the beams. An optical scanning module scans the beams onto the screen. The controller includes an image data storage device 1010 that stores data of the images to be displayed and operates to adjust optical energies of the optical pulses with respect to positions of the scanning beams on the screen to render the images. The controller also stores 1022 data of a predetermined spatial variation of each optical beam in connection with a location of the optical beam on the screen caused by one or more distortions in scanning the optical beam onto the screen. In addition to adjusting optical energies of the optical pulses for rendering the images, the controller adjusts optical energies of the optical pulses of at least one optical beam, based ...

Method and device for controlling a video projector in a video projection system comprising multiple video projectors

Image processing for projection with multiple projectors

A method of processing image data for projection on a projection screen by a plurality of projectors projecting respective image portions of an image, the method comprises the steps of receiving a first command associated with a modification of at least one portion of said image, and transmitting a second command for synchronous action to a first set of control units, based on the first command. The second command enables the first set of control units to synchronously perform at least one action, by at least one projector of the plurality, in order to carry out said modification. The action may be zooming, image shifting, brightness control or colour control.

Image display apparatus

Display system

Projection display

SPATIAL LIGHT MODULATOR SYSTEM

PICTURE PROJECTING APPARATUS

Digital cinema projector with wire grid polarisation beamsplitter

A digital cinema projector (100) for projection of color images onto a display surface comprises a light source (116), which produces a beam of light. Beam-shaping optics (130) homogenize and focus the beam of light and color splitting optics (132) separate focus beam of light into separate color beams. A first modulation optics system comprises a prepolarizer (212), which prepolarizes a first color beam; a wire grid polarization beamsplitter (224), which transmits a first predetermined polarization state of the prepolarized beam; a reflective spatial light modulator (204) which may be a liquid crystal device, which alters the transmitted prepolarized beam with information and reflects the image bearing first color beam through the wire grid polarization beamsplitter (224); and a wire grid polarization analyzer (228), which transmits the image bearing first color beam and attenuates unwanted polarization components. A recombination prism (232) combines the first color beam from the first ...

Projector with narrow-spectrum light source to complement broad-spectrum light source

Display system with nonvisible data projection

A display system (44,56) includes an illumination (14) source configured to produce visible and nonvisible radiation and to direct the visible and nonvisible radiation along an optical path; and a modulator (16) disposed in the optical path configured to modulate the visible radiation to generate a visible image (47, 66), and to modulate the nonvisible radiation to generate a nonvisible data stream.

Display system with nonvisible data projection

Colour optical output system.

Colour optical output apparatus comprising a colour dependent mirror and a plurality of optical spacial modulator arrays 20a, 20b, 20c arranged to deflect light incident thereon, the arrangement being such that an incident polychromatic beam is split by said mirror into spectral components, one directed to each array, and said mirror is arranged also to receive and combine deflected beams from each array to produce a combined optical beam, the spectral response of the mirror means being the same during splitting and combining. The mirror is also arranged to be at the same angle to the incident path as to the reflective path. The spatial light modulators are preferably deformable mirror devices. ...

Movie camera system with both view finding function and projecting function

Reflective type of liquid crystal display projection system

A reflective type liquid crystal projection system, which includes a light source 100 emitting a visible light, a light collecting unit (LCU) 300 transforming the visible light into a first LCU output (Rs + Fp + Bp) and a second LCU output (Rp + Fs + Bs), a polarization transforming device 400 transforming a phase of the second LCU output into a phase of the first LCU output, a first dichroic device 200A reflecting the Rs component to a first optical output path of the first dichroic device and transmitting the Gp+Bp component, a compensating device 200C compensating the Rs component for optical path difference, a second dichroic device 200B, reflecting the Bp component and transmitting the Gp component, a first reflective type optical modulator 203 reflecting the Rp component to a projection lens 207, a second reflective type optical modulator 204 reflecting the Bs component to the second dichroic device 200B and then the Bs component being reflected to the projection lens 207, a third ...

Optical device for projection display

An optical device which is suitable for use in a projection display comprises a spatial light modulator 40, such as a liquid crystal device, with a microlens array 42 disposed on its front surface. The microlenses 58 are of convergent type, such as lenticules. The spatial light modulator is of the reflective type and comprises a plurality of rear reflectors 59, each of which has convergent optical power in at least one direction. The reflectors 59 are arranged such that, for a given direction of illumination, each reflector 59 forms an image of the aperture A of a microlens on the aperture B of another microlens or at a different position on the same microlens. When used in, for example, a projection display, light losses caused by vignetting are reduced.

Projection type reflection image display apparatus with diffractive reflection polariser

The apparatus comprises a light source 1, an illumination optical system, a reflection image display device 110, a projection lens 15 and a reflection polarizing plate 100 or prism which functions as a polarizing plate by its grating function only in a specific direction. It also uses an auxiliary polarizer 90 or an absorption auxiliary analyzer 120. Their reflection axis or absorption axis is adjusted according to the characteristic of the reflection liquid crystal panel so as to minimize light leakage associated with black image display. The auxiliary parts may be air cooled with a fan. The projection lens 15 may have a cut out portion (Fig 17).

Method of saving power by reducing reception time in a standby mode of a mobile communication terminal

A signal received by a mobile communication terminal in a standby mode is sampled, converted to digital, and stored. At least a part of the receive part is de-activated and the stored samples are processed. If it is decided that the samples contain insufficient data, the receive path may be re-activated to receive further samples. In this way, the various activities which the mobile needs to undertake while in the standby state (channel tracking, monitoring nearby base stations) are carried out with minimum drain on the power supply.

Apparatus and method of re-adjusting convergence of a projection tv

Reduction of speckle and interference patterns for laser projectors

The invention provides a system and method for reducing laser speckle and interference patterns in a laser projector display when using a laser projector having a spatial light modulator (SLM) with a defined pixel rate. The method can include the operation of polarizing a laser output 104 of a continuous wave laser 102 such that the laser output is s-polarized with respect to a beam combiner 140. The s-polarized laser output 108 can be divided into a first laser beam 112 and a second laser beam 116. A phase of the second laser beam 116 can be modulated with an amplitude sufficient to create a phase delay of approximately half a wavelength of the laser output 104 and at a frequency at least twice that of the SLM' s pixel rate.

Electro-optical device, image processing circuit, and electronic device

An electro-optical device in which an image to be projected on a projection surface as a projection image having a size changed by a display device is displayed on a display area on the basis of input image data includes a first input image correction circuit generating first correction data which is used for reducing color non-uniformity of the projection image that occurs due to the size change on the basis of the size of the projection image using first reference correction data and correcting the input image data using the generated first correction data and a second input image correction circuit correcting the corrected input image data on the basis of a plurality of second reference correction data corresponding to a plurality of specific levels among levels that the input image data can have and set for a plurality of sets of reference coordinates in the display area for reducing the color non-uniformity.

Image display device

A drive signal generation part of an image display device includes a memory unit which stores data on a first waveform for scanning light out of a sawtooth waveform of a drive signal, and stores data on a second waveform which is a waveform formed by excluding the first waveform from the sawtooth waveform of the drive signal, and the drive signal generation part sequentially reads data on the first waveform from the memory unit at readout timing corresponding to resonance frequency of a high-speed scanning element and generates a portion of a drive signal corresponding to the first waveform, and sequentially reads data on a plurality of second waveforms stored in the memory unit corresponding to the resonance frequency of the high-speed scanning element and generates portions of the drive signal corresponding to the second waveforms corresponding to the resonance frequency of the high-speed scanning element.

Light source modulation for projection

A color projection display in which at least one color channel includes: a light source assembly including a multiplicity of pulse modulated light sources providing an aggregate light beam; a light modulation control subsystem; illumination optics to direct the aggregate light beam to an image modulation plane; and a spatial light modulator in the image modulation plane. The light modulation control subsystem senses an aggregate light intensity signal for the aggregate light beam and controls the pulse modulation parameters for the multiplicity of pulse-modulated light sources responsive to the sensed aggregate light intensity signal to reduce light intensity fluctuations in the aggregate light beam within the imaging time interval.

Optical scanning apparatus

An optical scanning apparatus includes a laser source configured to irradiate a laser beam, a prism configured to reflect the laser beam irradiated from the laser source, a mirror configured to move the laser beam reflected from the prism by oscillating with respect to a predetermined axis and reflecting the laser beam reflected from the prism, the laser beam reflected from the prism being substantially perpendicular to a plane of the mirror in a case where the mirror is in a non-oscillating state, a waveplate positioned between the prism and the mirror and configured to polarize the laser beam reflected from the prism and the laser beam reflected from the mirror. The waveplate includes an end plane inclined with respect to the laser beam reflected from the prism to the mirror.

Energy Transfer In Scanning Laser Projectors

The present disclosure introduces a number of image compression schemes designed to optimize operational efficiency in laser scanning projectors. Contemplated compression modes include, but are not limited to, intra-frame energy transfer, inter-frame energy transfer, and combinations thereof. The image compression modes disclosed herein are equally applicable to native laser sources and synthetic sources, such as green lasers based on a non-linear wavelength conversion. In cases where multiple lasers are used together in a multi-color projection system, it will often be preferable to favor particular image compression modes for particular colors, particularly where image brightness is more readily attributable to one color, e.g., green, because of the spectral responsivity of the human eye.

Projection display device

A projection display device includes: an aperture part which narrows light traveling toward an imager; a control part which controls the aperture part; a detection part which detects brightness of an image to be projected; and a determination part which determines whether the image is a still image or a moving image. In this arrangement, the control part operates the aperture part so as to narrow the light when the brightness of the image detected by the detection part is darker than predetermined brightness, and operates the aperture part so as to further narrow the light when the brightness of the image detected by the detection part becomes darker than the predetermined brightness. In addition, the control part sets the predetermined brightness for operating the aperture part so as to be darker when the image is the still image than when the image is the moving image.

Light array projection and sensing system

A low cost, light projection and sensing system that projects an image onto a display surface using an array of light emitters. The system or device has an integral sensing capability of the display surface using light sensors. Both the emitters and sensors are coupled to a control unit. The device modifies the light-projected image and sensor view region with its control unit. The device projects an animated overlaid image or large tiled image of photographic resolution. In at least one embodiment, a projection device may create smooth animation of its projected image by varying the brightness of one or more illuminated images within its generated video frames. Computer implemented methods are utilized for light emitter activation and brightness control.

Projector and method of controlling projector

A projector including: a light source; a light modulation device modulating a light emitted from the light source in accordance with an image signal for each of colored lights for color display; a projection optical system projecting each of the colored lights modulated by the light modulation device; an operation accepting section; a registration adjustment section performing correction of the image signal corresponding to each of the colored lights based on an operation accepted by the operation accepting section so that a displacement occurring in at least one of a horizontal direction and a vertical direction in a projection screen between the colored lights is reduced, and supply the light modulation device with the image signal corrected if the displacement occurs; and a correction direction display control section displaying a correction direction, in which the correction of the image signal is performed, as an icon indicating a direction.

Projection device with brightness adjustment function and method thereof

A projection device with an illumination adjustment function includes a polarization beam splitter (PBS), a display, a light source, a lens module, a power supply unit, a light detection unit and a power controller. The light source emits light to the PBS. The lens module projects the images to be displayed by the display. The power supply unit supplies power for the light source. The light detection unit acquires a digital value of a portion of the light transmitted from the PBS, and compares the digital value with a predetermined digital value to generate a control signal. The power controller adjusts power from the power supply unit to the light source according the control signal until the digital value matches the predetermined digital value of the light from the light source.

Projector and method of controlling projector

In at least one embodiment of the disclosure, a projector comprises an imaging unit that photographs a projection surface and acquires a first photographed image during a projection of a featured image at a first time point and acquires a second photographed image during the projection of the featured image at a second time point different from the first time point. An image processing unit generates a reference image based on the first photographed image and generates a comparative image based on the second photographed image. A movement detecting unit detects a change in a relative position of the projector with respect to the projection surface by using the reference image and the comparative image generated by the image processing unit.

Light source device and image display apparatus

A light source device includes a phosphor layer formed on a base, and an excitation light source exciting the phosphor. A dichroic mirror is arranged between the phosphor layer and the excitation light source and inclined with respect to a propagation direction of excitation light from the excitation light source. An incident region of the excitation light and an exiting region of fluorescence emitted from the phosphor belong to a space on the same side with respect to the surface with the phosphor layer disposed. In a dominant wavelength of the excitation light, the dichroic mirror has a spectral characteristic of transmitting 50% or more of light of a p-polarized component and reflecting 50% or more of light of a s-polarized component. Fluorescence emitted from the phosphor layer can be extracted highly efficiently and propagated by a compact and simple optical system.

Illumination module and projection apparatus

A projection apparatus including an illumination module, a display panel, and a projection lens module is provided. The illumination module includes a light source assembly including a light guide plate, a light source, a reflector, and a reflective polarizer, and a polarized beam splitter (PBS). The light guide plate has a light emitting surface, a bottom surface opposite to the light emitting surface, and a light incident surface connected between the light emitting surface and the bottom surface. The light source, the reflector, and the reflective polarizer are faced to the light incident surface, the bottom surface, and the light emitting surface respectively. The PBS is disposed beside the reflective polarizer away from the light guide plate. The display panel and the light source assembly are respectively located at two adjacent sides of the PBS. The projection lens module is disposed beside the PBS away from the display panel.

Systems and methods for dynamic power management for use with a video display device

Embodiments of the present invention relate to methods and circuits for use with a system including a light emitting element (e.g., a laser diode or light emitting diode) that is driven by a current produced by a current output digital-to-analog converter (DAC), wherein the light emitting element or the DAC is powered by a supply voltage produced by a voltage supply. In accordance with an embodiment, a measure indicative of a voltage at an output of the DAC is obtained, wherein the voltage at the output of the DAC is indicative of a voltage headroom available for the DAC. The measure indicative of the voltage at the output of the DAC is compared to one or more predetermined references, and the supply voltage is controlled based on the comparison(s).

Image display system

An image display system comprises red, green and blue laser light source units (22 to 24), a spatial light modulator (25) that modulates the laser lights of different colors in a time sharing manner and a control unit (13) for controlling the operation of the laser light source units and the spatial light modulator. The green and red laser light source units are lighted in that order in each frame. The green color is diminished owing to the response delay of the spatial light modulator, but the green laser light produced by the green laser light source unit (23) has a relatively large color phase shift from the standard green color so that the shortage of green color cancels out with the color phase shift of the generated green color so that the color phase shift of the displayed intermediate color can be minimized.

Scanning image display device and method of controlling the same

A scanning image display includes a light source, a light detector, a scanning section, a storage section, a current controlling section, a reference current section, a sweep section, and a change section. The light detector detects the laser light emitted from the light source. The scanning section scans the laser light. The current controlling section controls laser light by supplying a current supplied to the light source. The storage section is configured to store a reference current value, a reference light output value, and a gamma table. The reference current section supplies the reference current value to the current controlling section. The sweep section sweeps current values supplied to the current controlling section to obtain one current value where the detected laser light corresponds to the reference light output value. The change section changes the gamma table based on the one current value obtained by the sweep section.

Projection-type image display apparatus

A projection-type image display apparatus projects an image on a projection plane, and includes a projection unit, an image capture unit, an ambient light detection unit, and a superimposed image generation unit. The projection unit projects an image on the projection plane through a lens. The image capture unit captures the image projected on the projection plane by the projection unit. The ambient light detection unit detects ambient light cast on the projection plane, from the image captured by the image capture unit. The superimposed image generation unit generates information about detection of ambient light detected by the ambient light detection unit, in the form of a superimposed image to be superimposed on the image projected on the projection plane.

Magnetically Actuated System

A magnetically actuated system includes a conductor and a magnetic field apparatus to generate a magnetic field. The magnetic field apparatus includes magnets and magnetically permeable materials to focus the magnetic field in areas of the conductor that produce a drive torque when the conductor carries a current.

Optical scanning device, optical scanning method, program, and image display device

An optical scanning device includes: a first scanning; a first scanning mirror driving unit; a light emission signal output unit; a light receiving unit; and a phase control unit which controls the first scanning mirror driving unit so as to delay a phase of the oscillation of the first scanning mirror when the light receiving unit outputs the detection signal before intermediate time in a case where the light receiving unit does not output the detection signal during a predetermined period of time, the phase control unit controlling the first scanning mirror driving unit so as to advance a phase of the oscillation of the first scanning mirror when the light receiving unit outputs the detection signal after the intermediate time in the case where the light receiving unit does not output the detection signal during the predetermined period of time.

Substrate Guided Relay with Image Compensation

A display system includes a substrate guided relay and a scanning projector. The scanning projector exhibits a brightness variation on a resonant scanning axis, and the substrate guided relay exhibits a brightness variation along a length of an output coupler. The scanning projector includes a brightness compensation circuit to compensate for both the brightness variation caused by the resonant scanning and the brightness variation along the length of the output coupler.

Liquid Crystal Display Device and Projector

A liquid crystal display device includes: a liquid crystal panel having a liquid crystal device and a dust-proof plate disposed on at least one of a light entrance side and a light exit side of the liquid crystal device; and a first polarization filter disposed so as to be opposed to the liquid crystal panel across the dust-proof plate, wherein a direction of an absorption axis of the first polarization filter and a direction of an optical axis of the dust-proof plate are perpendicular to each other, and the dust-proof plate is made of a positive uniaxial crystalline material, and satisfies a following relational expression denoting a refractive index difference with respect to two directions perpendicular to a system optical axis as Δn, a thickness in a system optical axis direction as d, and a wavelength to be used as λ, and using an integer N: N≦Δnd/λ≦N +½.

Projection optical system and projector including the same

A projection optical system which, when projecting an image of an optical modulator onto a projection surface on an enlarged scale, differs the aspect ratio of the image of the optical modulator and the aspect ratio of the image projected onto the projection surface, and includes, in order from the projection surface, a first group which is an enlargement optical system; a second group includes an adjustment optical component with a surface rotationally asymmetrical to an optical axis, when defining at least one direction of the vertical direction and the horizontal direction of the optical modulator as an adjustment direction in which conversion adjustment using compression or extension is performed, the adjustment optical component having at least one optical system which differs in power between the adjustment direction and another direction; and a third group which has a correction optical component with a surface rotationally symmetrical to the optical axis.

Image Display Device and Light Emission Timing Control Method

An image display device includes: excitation light source ( 5 ), fluorescent screen ( 6 ) provided with a plurality of phosphor regions ( 61, 62, 63 ) that are arranged periodically in the in-plane direction, the regions between phosphor regions being retroreflective regions ( 64 ) that bend incident light in the direction opposite the direction of incidence of the light; scanning means ( 4 ) that scans fluorescent screen ( 6 ) with a light beam from excitation light source ( 5 ); optical detection means ( 2, 3 ) that detects retroreflective light ( 7 ) that is reflected by retroreflective regions ( 64 ); and control means ( 1 ) that causes scanning by scanning means ( 4 ), detects boundaries between each phosphor region ( 61, 62, 63 ) and retroreflective region ( 64 ) on fluorescent screen ( 6 ) based on output of optical detection means ( 2, 3 ), and controls the light emission timing of excitation light source ( 5 ) based on the detected boundaries.

Controlling laser power

An intensity of radiation emitted from at least two laser diodes of a projecting apparatus is optimized by providing an offset distance between at least two focal points of the at least two laser diodes and providing a maximum value for radiation intensity emitted by each of the laser diodes, irrespective of simultaneous transmission by one of the laser diodes with another of the laser diodes. The intensity of the radiation emitted from each of the at least two laser diodes is adjusted such that an aggregated value of the radiation intensity emitted by all of the laser diodes within a predefined period of time may exceed a threshold value allowed for the maximum permissible exposure to radiation.

Interactive display surface for multi-display use

There is disclosed a method of controlling an interactive display system comprising an interactive display surface, the interactive display surface being adapted to detect contact points at said surface, the method comprising: rendering a plurality of images for display on a respective portion of the interactive display surface; routing data associated with a contact point at said surface to the image rendering device associated with the rendering of an image in the portion of the display in which the contact point is detected.

Method and system for dynamic feed-forward power control in a projector system

A projection system for projecting an output image. The projection system comprises a plurality of laser diodes, each laser diode operable to generate a light beam having a selected intensity in response to a control voltage and a control current and combiner optics for combining light beams received from the plurality of laser diodes to generate an output light beam. A MEMS mirror module receives the output light beam from the combiner optics and generates a scanning light beam that forms the output image on a projection surface. A controller adjusts the control voltage associated with each of the plurality of laser diodes for a first line of pixel data in response to a determination of a level of contrast associated with the first line of pixel data.

Scanning projection apparatus and scanning image display

In a light beam scanning projection apparatus which scans a light beam emitted from a laser light source, an image display apparatus is configured including a plurality of light beams, a reflection mirror for reflecting the light beams to project them onto a screen or the like, and a mirror driving unit for driving the reflection mirror so that the plurality of light beams are incident on the reflection mirror with different optical axes and projected on different projection areas, thereby displaying a single image with a plurality of images. Further, by forming a single image by causing a plurality of the light beams to have predetermined relative angles thereamong so as to make a plurality of images overlap on each other with slight shifts, a scanning projection apparatus is provided with which the luminance of the image is improved while conforming to safety standards.

Projector and method for controlling projector

A projector that projects an image allows selection of one of a plurality of controlled objects located in correspondence with the vertices of the contour of the image and the sides of the contour, moves the selected controlled object within the image based on input operation, and corrects the contour of the image based on the moved controlled object.

Liquid crystal device, electronic apparatus, and projection type display apparatus

When tilt directions of liquid crystal molecules have an azimuth of 45° or 135° in a counterclockwise direction with respect to the direction in which a wire grid of a wire grid polarization beam splitter extends, a phase difference compensation element in which an optical axis includes refractive index anisotropy of negative uniaxial properties along the thickness direction is inclined in the same direction as the tilt directions, and the phase difference compensation element is inclined in the direction reverse to the tilt directions when tilt directions have an azimuth of 225° or 315°.

Display device, control method of display device, and non-transitory computer-readable medium

A projector provides plural display areas on a screen and respectively displays input images input from plural image sources in the respective display areas by a projection unit, and includes a location detection unit that detects a pointed location of a pointing tool on the screen, and an image processing unit that executes processing over the plural display areas according to the detected pointed location.

OPTICAL SCANNING DEVICE

The invention is directed to an optical scanning device with two scanning mirrors and with optical elements for imaging the two scanning mirrors one onto the other by means of an intermediate image. A control unit is provided for supplying drives which are coupled to the scanning mirrors with excitation voltages or excitation currents to initiate deflection angles ranging from zero to the maximum possible deflection angle for the two scanning mirrors. At least one of the scanning mirrors is designed for biaxial scanning, and the control unit is designed to vary the driving of the two scanning mirrors with respect to biaxial or uniaxial deflection of the beam bundle electively in quasistatic or resonant mode of operation. At least one of the two scanning mirrors is preferably designed as MEMS assembly. 1. An optical scanning device comprising:a first scanning mirror which is configured to deflect a beam bundle, and which is driven by a first scanning mirror drive;a second scanning mirror which is positioned in direction of the deflected beam bundle, and is configured to deflect the beam bundle again, the second scanning mirror being driven by a second scanning mirror drive;optical means which are arranged between the two scanning mirrors and are configured to image the first scanning mirror on the second scanning mirror via an intermediate image; anda control unit configured to supply the scanning mirror drives with given excitation voltages or excitation currents to bring about a biaxial or uniaxial deflection of the beam bundle by deflection angles ranging from zero degrees to the maximum possible deflection angle electively in quasistatic operating mode or resonant operating mode;wherein at least one of the scanning mirrors is formed as a biaxial scanning mirror.2. The optical scanning device according to ;wherein the two scanning mirrors are deflected biaxially;wherein a resonant mode of operation is provided for the first scanning mirror in the direction of the ...

Image Display Device

Provided is a technique capable of effectively reducing local speckle noise caused by scanning with laser light involving a variation in scanning speed and improving the overall quality of an image. A laser light source emits laser light with an output level Lc corresponding to a display grayscale of a pixel according to a predetermined waveform pattern PT within a pixel display period which is set to increase as a scanning speed Vh is reduced. The waveform pattern PT is set such that a unique relaxation oscillation of the laser light source increases as the scanning speed Vh is reduced. A scanning mirror reflects the laser light emitted from the laser light source in a predetermined scanning order according to its deflection angle so as to be projected onto a projection surface.

Projector

Provided is a projector capable of suppressing deterioration of a portion of a projection portion irradiated with a laser beam while improving brightness. This projector is formed to deviate optical axes of laser beams emitted from a plurality of laser beam generation portions respectively from each other so that the laser beams emitted from the plurality of laser beam generation portions respectively do not concentrate on one point of a projection portion. 1. A projector comprising:a plurality of laser beam generation portions emitting laser beams having substantially identical lasing wavelengths; anda projection portion projecting an image onto an arbitrary projection area by scanning the laser beams emitted from the plurality of laser beam generation portions respectively, andformed to deviate optical axes of the laser beams emitted from the plurality of laser beam generation portions respectively from each other so that the laser beams emitted from the plurality of laser beam generation portions respectively do not concentrate on one point of the projection portion.2. The projector according to claim 1 , further comprising a control portion controlling generation timings of the laser beams emitted from the plurality of laser beam generation portions respectively claim 1 , whereinthe control portion is formed to deviate the timings when the plurality of laser beam generation portions emit the laser beams from each other in response to the quantities of deviation of the optical axes of the laser beams emitted from the plurality of laser beam generation portions respectively so that the image projected onto the arbitrary projection area substantially coincides when the image is projected by scanning the laser beams emitted from the plurality of laser beam generation portions whose optical axes have been deviated from each other.3. The projector according to claim 2 , whereinthe control portion is formed to deviate the timings when the plurality of laser generation ...

Image Display Device

Provided is an image display device which carries out bi-directional line sequence scanning, and which appropriately corrects positioning misalignment of projection spots while efficaciously minimizing speckle noise. A laser controller unit sets waveform patterns when scanning in the forward direction, reflecting waveform patterns (GPT, BPT) about the time axis. The laser controller unit further sets waveform patterns when scanning in the reverse direction, reflecting the waveform patterns when scanning in the forward direction about the time axis. Waveform patterns (RPT, GPT, BPT) comprise drive start timings and drive end timings of laser sources within a pixel display period. The off period from the start timing of the pixel display period to the drive start timing and the off period from the drive end timing to the end timing of the pixel display period are set to be asymmetrical about the time axis.

DISPLAY CONTROL MODE

A method updates an image displayed on an electronic display. The image can include a first region having multiple lines and a second region also having multiple lines. The method includes driving the pixels of the first and second regions according to one or more frames. In a first frame, driving the pixels of the first and second regions is done by scanning the lines of the regions from a first end of the first region to a second end of the second region, the second end opposite the first end along a scanning direction. In a second frame, driving the pixels of the first and second regions is done by scanning the lines of the regions from the first end to the second end, and the scanning begins before the scanning according to the first frame reaches the second end. 1. Method of updating at least one image displayed on an electronic display comprising at least a first region and a second region , said first region having a first plurality of lines and said second region having a second plurality of lines , said updating comprising driving said pixels of said first and second regions according to each of a plurality of frames , the method comprising:driving said pixels of said first and second regions according to a first said frame by scanning said lines of said regions from a first end of said first region to a second end of said second region, said second end opposite said first end along a direction of a said scanning; anddriving said pixels of said first and second regions according to a second said frame by scanning said lines of said regions from said first end to said second end whereinsaid scanning according to the second frame begins before said scanning according to the first frame reaches said second end.2. Method of claim 1 , wherein said driving said pixels of said first and second regions according to each of a plurality of frames comprises driving said pixels according to each of a plurality of frames in turn to perform a single image update.3. ...

Image projection device and associated image projection method and calibration method

An image projection device includes an optical correction unit, a panel and a lens. The optical correction unit is utilized for receiving an image and pre-distorting the image to generate a pre-distorted image according to pre-distortion parameters. The panel is coupled to the optical correction unit, and is utilized for receiving and projecting the pre-distorted image. The lens is positioned in front of the panel, where the pre-distorted image projected from the panel passes through the lens, and the pre-distortion parameters correspond to distortion effects caused by the lens.

Device for projecting an image

According to the present invention there is provided a projection device, which is configured to project an image which is co-operable with images projected by one or more other projection devices, wherein the projection device comprises a detector operable to detect characteristics of images projected on a display surface by the projection device and one or more other projection devices, and a controller operable to adjust the projection device and/or to adjust one or more of the other projection devices, based on the characteristics of the images detected by the detector, such that the images projected by each projection device co-operate on the display surfaces.

OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS

An optical scanning apparatus, including: a light source including a plurality of light emitting parts; a deflector including a deflecting surface; a first optical system configured to cause the plurality of light beams to enter the deflecting surface at an oblique angle; and a second optical system configured to focus the light beams on a surface to be scanned, in which: the light emitting parts are arranged away from each other; the second optical system includes an optical element including at least one optical surface having a non-arc shape, so that a wave optics interval between scanning lines based on barycentric positions of spot images on the surface to be scanned is aligned along the main scanning direction; the non-arc shape of the at least one optical surface of the optical element within the sub-scanning section is defined by a predetermined condition. 2. An optical scanning apparatus according to claim 1 , wherein the second optical system has a characteristic that causes an imaging magnification in the sub-scanning direction to vary in an asymmetric manner in the main scanning direction.3. An optical scanning apparatus according to claim 1 , wherein when a relationship between an aspheric coefficient of any order among the aspheric coefficients included in the non-arc shape of the at least one optical surface of the optical element and a position in the main scanning direction is represented by a first function and a relationship between an imaging magnification of the second optical system in the sub-scanning direction and the position in the main scanning direction is represented by a second function claim 1 , each of the first function and the second function has an extremum within an effective scanning area of the at least one optical surface.4. An optical scanning apparatus according to claim 3 , wherein in each of the first function and the second function claim 3 , the extremum which is located closest to the optical axis in the main scanning ...

MOTION AXIS CONTROL AND METHOD FOR BIOSENSOR SCANNING

A motion control system and a method for biosensor scanning which scans a light beam spot over one or more of the biosensors supported by a microplate with an optical scanner system, the method including: 1. A method for scanning a light beam spot over one or more biosensors supported by a microplate with an optical scanner system having:a smoothness order n;a set of properties that describe the x and y position of the beam spot at any time;{'sup': st', 'th, 'a series of points in time and at each point in time a value for each of the properties and the 1through the (n−1)order rates of change of each of the properties;'}the method comprising:defining an axis for each property used to describe the state of the beam spot;{'sup': th', 'st', 'th, 'calculating for each axis an norder piecewise polynomial function of time between each point in the series of points in time that equals the specified axis value and the 1through the (n−1)order rates of change;'}producing a series of elapsed times between each point in the series of points in time;calculating each axis value from the polynomial function at each point in the series of elapsed times;calculating the x and y locations of the scan path from the axis values at each point in time; andsending the calculated x and y locations to the optical scanner system when each point in elapsed time series occurs to cause the optical scanner system to deflect the light beam and scan the beam spot over the defined scan path.2. The method of claim 1 , wherein additional points in time claim 1 , together with the state of the beam spot at each additional point in time together with the 1through the (n−1)order rates of change of the state of the beam spot are appended to a scan path that is in progress.3. The method of claim 1 , wherein the piecewise polynomial function is a cubic spline.4. The method of claim 1 , wherein the piecewise polynomial function is of the 3order and has 3-pieces.5. The method of claim 1 , wherein the ...

Projector and control method

A projector includes a screen which has color stripes that are periodically arranged and that generate visible light corresponding to incident light. A laser light source section emits a light beam. A laser scanning section scans the light beam on a region of the color stripes arranged on the screen. A light detection section detects feedback light radiated from the screen corresponding to the light beam. A control section adjusts a light emission timing and a light emission period of the laser light source section based on a detection result of the light detection section and causes the laser light source section to emit the light beam such that light pulses enter the individual color stripes.

MICRO-PROJECTION DEVICE WITH ANTIS-PECKLE IMAGING MODE

A micro-projection system for projecting light on a projection surface (), comprising: at least one coherent light source (); optical elements () in the optical path between said coherent light source and said projection surface; said optical elements including at least one reflective member () actuated by a drive signal for deviating light from said light source so as to scan a projected image onto said projecting surface; said optical elements including at least one pixel displacement unit () for providing a displacement signal synchronized with the image scanning signal so as to reduce speckle onto said projecting surface. The corresponding method for reducing speckle is also provided. 1. A micro-projection system for projecting light on a projection surface , comprising:at least one coherent light source;optical elements in the optical path between said coherent light source and said projection surface;said optical elements including at least one reflective member actuated by a drive signal for deviating light from said light source so as to scan a projected image onto said projecting surface;said system including at least one pixel displacement unit wherein said pixel displacement unit provides a signal superposed to the drive signal for displacing the position of the pixel with respect to the position of a corresponding pixel in another image frame, so as to reduce speckle onto said projecting surface.2. A micro-system according to claim 1 , wherein said pixel displacement unit is arranged for providing a displacement signal synchronized with the image scanning signal so as to reduce speckle onto said projecting surface.3. A micro-projection system according to claim 1 , wherein said pixel displacement unit is adapted to provide a displacement of at least a portion of a first image frame with respect to other image frames in order to reduce speckle.4. (canceled)5. A micro-projection system according to claim 1 , wherein said reflective member is a MEMS type ...

METHOD AND DEVICE FOR SCANNING LIGHT

A method of scanning a light beam is disclosed. The method comprises scanning the light beam along a first axis and scanning the light beam along a second axis, such that a functional dependence of the scanning along the first axis is substantially a step-wave, and a functional dependence of the scanning along the second axis is other than a step-wave. 1165-. (canceled)166. A method for scanning a light beam , comprising:directing the light beam to reflect from at least one micromirror in a microelectromechanical system (MEMS); anddriving the MEMS so as to cause the at least one micromirror to rotate resonantly about a first axis and to cause the at least one micromirror to rotate non-resonantly about a second axis.167. The method of claim 166 , wherein the first axis is perpendicular to the second axis.168. The method of claim 166 , wherein driving the MEMS causes the micromirror to scan the light beam in a raster pattern.169. The method of claim 168 , wherein the raster pattern comprises a sequential scan.170. The method of claim 168 , wherein the raster pattern comprises an interlaced scan.171. The method of claim 166 , and comprising sensing a scanning position of the light beam and using the scanning position to synchronize the scanning of the light beam.172. The method of claim 166 , wherein directing the light beam comprises controlling the light beam so that the scanned light beam projects an image on a surface.173. The method of claim 166 , wherein directing the light beam comprises applying the scanned light beam in a light detection and ranging (LIDAR) system.174. The method according to claim 166 , wherein driving the MEMS comprises actuating a magnetic circuit to drive the MEMS.175. The method according to claim 174 , wherein a permanent magnetic material is mounted on the at least one micromirror for driving by the magnetic circuit.176. A device for scanning a light beam claim 174 , comprising:a microelectromechanical system (MEMS), comprising at least ...

METHOD FOR PROJECTING AN IMAGE

According to the present invention there is provided a method of projecting an image, the method comprising the steps of, providing light signal which is configured such that it can be projected onto a display surface to display an image; oscillating a first reflective surface, to scan the light signal over the display surface, using an actuator which is in operable co-operation with the first reflective surface, by applying a first actuation signal to the first reflective surface, wherein a rise time or fall time of the first actuation signal is inversely proportional to a resonant frequency of oscillation of the first reflective surface. 1. A method of projecting an image , the method comprising the steps of ,providing light signal which is configured such that it can be projected onto a display surface to display an image;oscillating a first reflective surface, to scan the light signal over the display surface, using an actuator which is in operable co-operation with the first reflective surface, by applying a first actuation signal to the first reflective surface, wherein a rise time or fall time of the first actuation signal is inversely proportional to a resonant frequency of oscillation of the first reflective surface.2. The method according to claim 1 , comprising the step of claim 1 , oscillating a second reflective surface using a second actuation signal claim 1 , so that the first and second reflective surfaces oscillate with an amplitudes of oscillation claim 1 , to scan a light signal over the display surface.3. The method according to claim 2 , wherein the second reflective surface is oscillated at a frequency which is the resonant frequency of the second reflective surface.4. The method according to claim 1 , further comprising the step of filtering the first actuation signal.5. The method according to claim 4 , further comprising the step of compensating for a change in the position of a peak in the first actuation signal claim 4 , caused by ...

Projection display and lack of brightness uniformity compensation method

It is an object of the present invention to correct brightness irregularities of color lights. A projection display apparatus includes a light source that emits light, DMs that divide the light emitted from the light source into a plurality of color lights, LCDs associated respectively with the color lights separated by the separating means, for modulating the color lights depending on an image signal, an XDP that combines the color lights modulated respectively by the LCDs, and a projection lens that projects light combined by the XDP. The projection display apparatus holds correction values for correcting brightness irregularities of the color lights which are caused by the prism. In response to the image signal received thereby, the projection display apparatus determines a plurality of brightness correction values to correct the brightness at the right and left ends of the combined light depending on the correction values, and corrects the image signal in order to correct each of the pixels represented by the image signal depending on the brightness correction values.

Scanning image projector and method of driving scanning image projector

A scanning image projector includes a laser light source, an MEMS scanner having a reflecting mirror which vibrates around first and second axes that are orthogonal to each other, and an MEMS control unit having a high speed drive circuit which causes resonant vibration of the reflecting mirror at high speed around the first axis, a low speed drive circuit which causes non-resonant vibration of the reflecting mirror at low speed around the second axis, and an offset drive circuit which offsets a position on the second axis in a non-resonant vibration region where the low-speed vibration is caused by a predetermined amount, wherein the MEMS control unit displays an image in a predetermined display region by drive signals from the high and the low speed drive circuits, and moves a position of the display region in the non-resonant vibration region by an offset signal from the offset drive circuit.

Laser driving circuit, laser driving method, projector apparatus and apparatus which uses laser light

Disclosed herein is a laser driving circuit, including: a plurality of laser driving video current generation circuits configured to generate a plurality of kinds of laser driving current for driving a plurality of laser light sources configured to emit laser light having wavelengths different from each other based on an inputted video signal; a high frequency superposition section configured to superpose a high frequency signal having a frequency higher than a frequency band of the video signal on the laser driving current generated by the laser driving video current generation circuits; and a waveform correction section configured to correct a waveform of the high frequency signal.

Projector and image display method

A red image is displayed on liquid crystal panel ( 111 ) by lighting red light source ( 101 ) for a predetermined period. A green image is displayed on liquid crystal panel ( 112 ) by lighting green light source ( 102 ) for the predetermined period. A green image is displayed on liquid crystal panel ( 113 ) by lighting green light source ( 103 ) for the first of first and second periods provided by dividing the predetermined period with a predetermined ratio. A blue image is displayed on liquid crystal panel ( 113 ) by lighting blue light source ( 104 ) for the second period.

PROJECTOR AND CONTROL METHOD

A projector includes a screen having a periodic array of color stripes for producing visible light depending on incident light, a light source that remits a light beam, a projection unit that scans an area of the screen where the color stripes are disposed, with the light beam in a direction across the color stripes, to display an image on the screen, a detector that detects the visible light from each of the color stripes as a feedback light pulse, and a controller that adjusts a start-of-emission timing of the light source based on a start-of-detection timing at which the feedback light pulse is detected by the detector and a detection period during which the feedback light pulse is detected by the detector, and controlling the light source to emit the light beam in order to apply light pulses to the color stripes within boundaries thereof. 1. A projector comprising:a screen having a periodic array of color stripes for producing visible light depending on incident light;a light source that remits a light beam;a projection unit that scans an area of said screen where said color stripes are disposed, with said light beam in a direction across said color stripes, to display an image on said screen;a detector that detects the visible light from each of said color stripes as a feedback light pulse; anda controller that adjusts a start-of-emission timing of said light source based on a start-of-detection timing at which the feedback light pulse is detected by said detector and a detection period during which the feedback light pulse is detected by said detector, and controlling said light some to emit said light beam in order to apply light pulses to said color stripes within boundaries thereof.2. The projector according to claim 1 , wherein said controller comprises:a driver that holds control information representing emission intervals of said light source and energizes said light source based on said control information to emit the light pulses therefrom; anda ...

PIXEL STRUCTURE OF ORGANIC LIGHT EMITTING DIODE AND DRIVING METHOD THEREOF

The present invention provides a pixel structure of an organic light emitting display device and driving method thereof. The pixel structure comprises first to fifth thin film transistors, a capacitor and an OLED device. Following steps are performed for the pixel structure in a refresh process of each frame of images: during a pre-charging period, the scan line and a first control signal (EM) are at a low level, a second control signal (EMD) is at a high level; during a compensation period, the scan line is at a low level, the first control signal (EM) and the second control signal (EMD) are at a high level; and during a light emitting period, the scan line is at a high level, the first control signal (EM) and the second control signal (EMD) are at a low level. 1. A pixel structure of an organic light emitting display device , comprising a first to a fifth thin film transistors , a capacitor and an organic light emitting display device , wherein a drain of the first thin film transistor is connected to a negative supply of a backboard via the organic light emitting display device , a source of the first thin film transistor is connected to a drain of the third thin film transistor , and a source of the third thin film transistor is connected to a positive power supply of the backboard; one end of the capacitor is connected between the first thin film transistor and third thin film transistor , and the other end of the capacitor is connected to a source of the second thin film transistor and a source of the fourth thin film transistor; a drain of the second thin film transistor is connected to a drain of the first thin film transistor and the organic light emitting display device; a drain of the fourth thin film transistor is connected to a drain of the fifth thin film transistor and a gate of the first thin film transistor , a source of the fifth thin film transistor is connected to a data line , and a gate of the fifth thin film transistor and a gate of the second ...

DISPLAY DRIVING DEVICE AND METHOD FOR DRIVING DISPLAY PANEL

A display driving device and a method for driving a display panel are provided. The display driving device includes the display panel and a display driver. The display panel includes a plurality of pixel units and a plurality of multiplexers. Each of the multiplexers is disposed with N data lines. The display driver provides a plurality of display data strings and a plurality of selection signals to the multiplexers to control the multiplexers according to the selection signals to receive and sequentially output the display data of the pixel units. Each of the display data strings forms two display data sets of different polarities in a same scan line, and the display data sets include the display data of at least one pixel unit. Thereby, the polarity inversion number of the display data and accordingly the power consumption can be reduced when the display driving device drives the pixel units. 1. A display driving device , comprising: a plurality of pixel units, wherein display data is respectively provided to a plurality of columns of the pixel units via a plurality of data lines; and', 'a plurality of multiplexers, wherein each of the multiplexers is disposed with N data lines, and N is a positive integer greater than or equal to 2; and, 'a display panel, comprisinga display driver, coupled to the multiplexers, and providing a plurality of display data strings and a plurality of selection signals to the multiplexers to control the multiplexers to receive and sequentially output the display data of the pixel units according to the selection signals, wherein each of the display data strings forms two display data sets of different polarities in a same scan line, and the display data sets comprise the display data of at least one of the pixel units.2. The display driving device according to claim 1 , wherein the display data sets of each of the display data strings in adjacent time slots of adjacent scan lines have a same polarity.3. The display driving device ...

Projector having light source unit including excitation light source, optical wheel, light emitting light source, and controller

A light source unit includes an optical wheel having a plurality of segment areas, the segment areas including at least two luminescent material layers having different characteristics and a transmission portion provided in a circumferential direction. The light source unit further includes a rotation driving unit for driving to rotate the optical wheel, an excitation light source for shining light onto the optical wheel, a light emitting element, and a light guiding optical system for collecting a light beam from the optical wheel and a light beam from the light emitting element to a same optical path. The excitation light source is selectively turned on to illuminate the transmission portion or the at least two luminescent material layers, and the light emitting light source is turned on for a period of time during which the excitation light source does not shine the excitation light.

Scanned Image Projection System Employing Intermediate Image Plane

In imaging system ( 100 ), a spatial light modulator ( 101 ) is configured to produce images ( 102 ) by scanning a plurality light beams ( 104,105,106 ). A first optical element ( 107 ) is configured to cause the plurality of light beams to converge along an optical path ( 114 ) defined between the first optical element and the spatial light modulator. A second optical element ( 115 ) is disposed between the spatial light modulator and a waveguide ( 1401 ). The first optical element and the spatial light modulator are arranged such that an image plane ( 117 ) is created between the spatial light modulator and the second optical element. The second optical element is configured to collect the diverging light ( 118 ) from the image plane and collimate it. The second optical element then delivers the collimated light to a pupil ( 120 ) at an input of the waveguide.

IMAGE DISPLAY DEVICE

An image display device includes an excitation light source; a fluorescent screen including a plurality of phosphor regions that are repeatedly formed in an in-plane direction and a retro-reflection region that reflects a part of incident light in the opposite direction of the incident light; a scanning unit that scans a surface of the fluorescent screen on which the phosphor regions and the retro-reflection region are formed with excitation light from the excitation light source; a photo detection unit that outputs signal value that varies on the basis of an incident light amount onto the photo detection unit; a reflection unit that reflects retro-reflection light of the excitation light directed from the retro-reflection region to the photo detection unit; and a control unit that causes the scanning unit to scan the fluorescent; detects boundaries between the phosphor regions and the retro-reflection region on the fluorescent screen based on the output signal of the photo detection unit, and controls a light emission timing of the excitation light source based on the detected boundaries. 1. An image display device , comprising:an excitation light source;a fluorescent screen that includes a plurality of phosphor regions which are repeatedly formed in an in-plane direction and a retro-reflection region that reflects a part of light that enters the retro-reflection region in a direction opposite to a direction of the light;a scanning unit that scans a surface of said fluorescent screen on which said phosphor regions and said retro-reflection region are formed with excitation light emitted from said excitation light source;a photo detection unit that outputs a signal value that varies on the basis of a quantity of light that enters said photo detection unit;a reflection unit that reflects retro-reflection light of the excitation light directed from said retro-reflection region to said photo detection unit; anda control unit that causes said scanning unit to scan said ...

IMAGE DISPLAY APPARATUS AND HEAD-MOUNTED DISPLAY

An image display apparatus includes laser light sources, a light combining section that combines laser light from the laser light sources, and an optical scanner that deflects drawing laser light from the light combining section for two-dimensional scanning. The optical axes of the laser light outputted from the laser light sources and directed toward the optical scanner are present in the same plane. Further, the optical scanner has a light reflection surface configured to be perpendicular to the plane when the optical scanner is not driven. The optical scanner deflects the drawing laser light reflected off the light reflection surface for two-dimensional scanning by causing the light reflection surface to swing within the plane and in the direction perpendicular to the plane. 1. An image display apparatus comprising:a plurality of light source sections each of which outputs a light;a light combining section that combines the light from the plurality of light source sections; andan optical scan section that deflects the combined light from the light combining section for two-dimensional scanning around a first axis and a second axis perpendicular to the first axis,wherein an optical axis of the light outputted from each of the plurality of light source sections and directed through the light combining section toward the optical scan section is present in a first plane, a base that swings around the first axis and the second axis,', 'a light reflection plate having a light reflection surface that reflects the light from the light combining section, the light reflection surface having an area larger than an area of the base, and', 'a spacer that connects the base and the light reflection plate to each other,, 'the optical scan section includesthe first axis is present in the first plane,the second axis is parallel to a normal of the first plane, andthe light reflection surface is perpendicular to the first plane when the optical scan section is not driven.2. The ...

IMAGE DISPLAY APPARATUS AND HEAD-MOUNTED DISPLAY

An image display apparatus includes a plurality of light source sections, a light combining section that combines light fluxes, an optical scan section that swings around a first axis and a second axis to deflect a combined light from the light combining section for scanning, and a controller that controls an amplitude of the optical scan section around the first axis to be greater than that of the optical scan section around the second axis, wherein an optical axis of each of the light fluxes from the plurality of light source sections to the optical scan section and the first axis are present in a first plane, the optical scan section has a light reflection surface configured to be perpendicular to the first plane, and the light reflection surface is irradiated with the combined light and traveling in a direction inclined to a normal to the light reflection surface. 1. An image display apparatus comprising:a plurality of light source sections each of which emits a light flux;a light combining section that combines the light fluxes emitted from the plurality of light source sections;an optical scan section that swings around a first axis and a second axis perpendicular to the first axis to deflect a combined light from the light combining section for two-dimensional scanning; anda controller that controls an amplitude of a swing motion of the optical scan section around the first axis to be greater than the amplitude of the swing motion of the optical scan section around the second axis,wherein an optical axis of each of the light fluxes emitted from the plurality of light source sections and directed through the light combining section toward the optical scan section and the first axis are present in a first plane,the optical scan section has a light reflection surface configured to be perpendicular to the first plane when the optical scan section is not driven, andthe light reflection surface is irradiated with the combined light emitted from the light combining ...

IMAGE DISPLAY APPARATUS AND HEAD-MOUNTED DISPLAY

An image display apparatus including a plurality of light source sections, a light combining section that combines light fluxes, 1. An image display apparatus comprising:a plurality of light source sections each of which emits a light flux;a light combining section that combines the light fluxes emitted from the plurality of light source sections;an optical element that inclines an optical axis of a combined light from the light combining section and changes a cross-sectional shape of the combined light from the light combining section; andan optical scan section that deflects light exiting out of the optical element for two-dimensional scanning,wherein an optical axis of the light flux emitted from each of the plurality of light source sections and directed through the light combining section and the optical element toward the optical scan section is present in a first plane,the optical scan section has a light reflection surface that is configured to be perpendicular to the first plane when the optical scan section is not driven and swings around a first axis present in the first plane and a second axis parallel to the direction of a normal to the first plane, andan angle of radiation of the light flux emitted from each of the plurality of light source sections in the direction of the normal to the first plane is greater than an angle of radiation of the emitted light flux in an in-plane direction in the first plane.2. The image display apparatus according to claim 1 ,wherein the optical element is a prism.3. The image display apparatus according to claim 2 ,wherein the light flux emitted from each of the light source sections is linearly polarized light that behaves as s-polarized light with respect to a light incident surface of the prism.4. The image display apparatus according to claim 2 ,wherein the prism increases the width of the cross-sectional shape of the combined light from the light combining section in the in-plane direction in the first plane.5. The ...

Projection System, Projection-type Image Display Device, and Multi-Projection System

A projection screen includes: phosphor regions arranged cyclically in an in-plane direction of a display region; a plurality of black stripes and reference black stripes that partition the display region into the phosphor regions; and an optical information formation unit that is provided in a specific position within the display region and that generates readable optical information.

HAPTIC DISPLAY DEVICE

A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes. 1. A haptic display device comprising:a substrate;a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal;a thin film transistor electrically connected to a selected one of the scan lines and the corresponding data line, wherein the thin film transistor is formed in each of a plurality of pixels arranged in a matrix pattern;a first electrode electrically connected to the thin film transistor;a second electrode facing the first electrode; andan optical adjustment member disposed between the first and second electrodes.2. The haptic display device of claim 1 , wherein the haptic control line is provided on a same layer with the first electrode.3. The haptic display device of claim 2 , wherein the haptic control lines are substantially parallel with the data lines.4. The ...

Optical Unit

An optical unit includes a light source that emits light to be projected onto a screen, one or a plurality of optical elements that controls a spread of a beam of light from the light source to the screen, a combining element that combines the light emitted from the light source, and a scanning element. The light source outputs an optical beam that will generate an elliptically shaped beam spot on the screen, the beam spot having a major axis substantially perpendicular to a scanning direction, and the light source is driven with pulse width modulation (PWM) so that one driven pulse corresponds to one beam spot on the screen. 1. An optical unit comprising:a light source that emits light to be projected onto a screen;one or a plurality of optical elements that controls a spread of a beam of light from the light source to the screen;a combining element that combines the light emitted from the light source; anda scanning element;wherein the light source outputs an optical beam that will generate an elliptically shaped beam spot on the screen, the beam spot having a major axis substantially perpendicular to a scanning direction; andwherein the light source is driven with pulse width modulation (PWM) so that one driven pulse corresponds to one beam spot on the screen.2. The optical unit according to claim 1 , wherein one pixel on the screen is depicted by a plurality of driven pulses.3. The optical unit according to claim 1 , wherein the optical output levels of each driven pulses are varied.5. The optical unit according to claim 1 , wherein the light source claim 1 , the optical elements claim 1 , and the combining element are each retained by an independent hold member claim 1 , and a heat-releasing member is disposed in each of the hold members.7. The optical unit according to claim 6 , wherein the color-combining element is formed so that of all components of the light from the light sources claim 6 , only the R-light and the B-light enter that in an s-polarized ...

Projection optical system and projection display apparatus

A projection optical system substantially consists of a first optical system composed of a plurality of lens groups and a second optical system composed of one reflection mirror having a convex aspherical surface arranged in this order from the reduction side, in which all optical surfaces constituting the first and second optical systems are formed so as to have rotationally symmetrical shapes around one common axis, the projection optical system is configured such that focus adjustment is performed by individually moving two lens groups in the first optical system along the common axis, and the lens disposed on the most magnification side in the reduction side lens group of the two lens groups is a lens having a convex surface on the magnification side, thereby magnifying and projecting an image formed on a conjugate plane on the reduction side to a conjugate plane on the magnification side.

SCANNING SIGNAL LINE DRIVE CIRCUIT, DISPLAY DEVICE HAVING THE SAME, AND DRIVE METHOD FOR SCANNING SIGNAL LINE

The present invention is directed to suppress dullness of a scanning signal in a scanning signal line drive circuit. A bistable circuit is provided with an input terminal () for receiving a first clock signal (CK), an input terminal () for receiving a control signal (CT), an input terminal () for receiving a level down signal (LD), an output terminal (), a thin film transistor (T), and a thin film transistor (TA). The thin film transistor (T) has a gate terminal connected to a first node (N), a drain terminal connected to the input terminal (), and a source terminal connected to the output terminal (). The thin film transistor (TA) has a gate terminal connected to the input terminal (), a drain terminal connected to the first node (N), and a source terminal connected to the input terminal (). The potential of the control signal (CT) becomes the high level in a control period as a period except for the first one horizontal scanning period in a vertical blanking period. The level down signal (LD) is a potential lower than DC power supply potential (Vss). 1. A scanning signal line drive circuit for periodically driving a plurality of scanning signal lines , the scanning signal line drive circuit comprising:a shift register including a plurality of bistable circuits which are cascade-connected to one another and sequentially making output signals of the plurality of bistable circuits active based on clock signals which are supplied from the outside and periodically repeats an on level and an off level, wherein a drive unit having a first node and changing a potential of the first node based on a set signal; and', 'an output unit connected to the first node and, when the potential of the first node is at the on level, outputting one of the output signals which is active based on the clock signals,, 'each of the bistable circuits comprisesthe set signal in the bistable circuit in a front stage is a start pulse signal which becomes an on level at a scanning start timing, ...

DISPLAY UNIT, DRIVE CIRCUIT, DRIVE METHOD, AND ELECTRONIC APPARATUS

A display unit that drives pixels field sequentially includes pixel circuits disposed in a matrix form of rows and columns and a drive control section that causes the pixel circuits to display image frames of input image data such that a single frame of the image frames is displayed in two parts as a first sub-frame and as a second sub-frame. The first and second sub-frames are displayed field sequentially by different portions of the pixel circuits. The first sub-frame is displayed by a first portion of the pixel circuits that are located in a checked pattern, while the second sub-frame is displayed by the remaining pixel circuits. 1. A display unit comprising:a plurality of pixel circuits disposed in a matrix form comprising rows and columns; anda drive control section configured to cause the plurality of pixel circuits to display image frames corresponding to input image data such that a given frame of the image frames is displayed as a first sub-frame and as a second sub-frame,wherein the first sub-frame is displayed by a portion of the plurality of pixel circuits comprising a checked pattern including every other pixel circuit in each row and every other pixel circuit in each column, such that each pixel circuit displaying the first sub-frame begins display thereof during a first half of a given frame period, andthe second sub-frame is displayed by those of the plurality of pixel circuits that do not display the first sub-frame, such that each pixel circuit displaying the second sub-frame begins display thereof during a second half of the given frame period.2. The display unit of claim 1 , further comprising:a plurality of write scanning lines; anda plurality of signal lines, a display element,', 'a first transistor configured to sample a potential carried on one of the plurality of signal lines when a scanning pulse is applied to one of the plurality of write scanning lines, which is connected to the first transistor,', 'a capacitor with a first terminal ...

SCAN DRIVING DEVICE AND DRIVING METHOD THEREOF

A scan driving device and a driving method thereof are disclosed. The scan driving device includes a plurality of scan driving blocks, and each of the plurality of scan driving blocks includes a first transistor configured to transfer a clock signal inputted to a first clock signal input terminal to a first node according to a first input signal inputted to a first input signal input terminal; a second transistor configured to transfer a first power source voltage to a second node according to a voltage of the first node; and a third transistor configured to transfer the clock signal inputted to the first clock signal input terminal to an output terminal connected to a scan line according to the voltage of the fourth node. The scan driving blocks may also include a plurality of capacitor configured to store and/or change voltage at a plurality of nodes. 1. A scan driving device comprising:a plurality of scan driving blocks, and each of the plurality of scan driving blocks including:a first clock signal input terminal;a second clock signal input terminal;a first input signal input terminal;a second input signal input terminal;an output terminal;a scan line connected to the output terminal;a first transistor configured to transfer a first clock signal inputted to the first clock signal input terminal to a first node according to a first input signal inputted to the first input signal input terminal;a second transistor configured to transfer a first power source voltage to a second node according to a voltage of the first node;a first capacitor connected between the second node and the second clock signal input terminal configured to change a voltage of the second node according to a second clock signal inputted to the second clock signal input terminal;a second capacitor connected between the second node and a third node configured to change a voltage of the third node according to a voltage change of the second node;a third capacitor connected between the third node ...

TRANSMISSION INTERFACE, TRANSMISSION METHOD, AND DRIVING CIRCUIT THEREOF, AND DISPLAY DEVICE AND ELECTRONIC DEVICE

The present invention relates to a transmission interface. A display device comprises a driving circuit and a transmission interface. The transmission method of the transmission interface is that a first input is used for receiving a first data string; a second input is used for receiving a second data string; and the processing unit receives the first and second data strings. The first data string has a first identification bit and a plurality of first information bits. The second data string has a plurality of second information bits. The processing unit identifies either to write a plurality of parameters or a plurality of data to a storage circuit or to read the stored content from the storage circuit according to the first identification bit and the plurality of first information bits. The processing circuit further writes or reads the storage circuit according to the plurality of second information bits. 1. A transmission interface , comprising:a first input, used for receiving a first data string;a second input, used for receiving a second data string; anda processing unit, receiving said first data string and said second data string, said first data string having a first identification bit and a plurality of first information bits, said second data string having a plurality of second information bits, identifying either to write a plurality of parameters or a plurality of data to a storage circuit or to read the stored content from said storage circuit according to said first identification bit and said plurality of first information bits, and writing or reading said storage circuit according to said plurality of second information bits.2. The transmission interface of claim 1 , wherein said second data string further comprises a second identification bit claim 1 , and said processing unit identifies said plurality of second information bits being the length of said plurality of parameters or the length of said plurality of data according to said second ...

Image forming apparatus, image forming method, and non-transitory computer readable medium

An image forming apparatus includes a rasterizing unit that rasterizes character information representing a character in a vector form into a first raster image in which pixels are arranged at a first predetermined density, a generator unit that generates a second raster image in accordance with the first raster image rasterized, and a mask image in which plural pixels are arranged at a second predetermined density, the plural pixels including a first pixel, and a second pixel, a exposure unit that irradiates an image carrier with the beam in response to the second raster image generated, a supply unit that supplies a developer to the image carrier which the exposure unit has irradiated with the beam, and develops on a surface of the image carrier an image responsive to the second raster image, and a transfer unit that transfers the developed image to a medium.

PROJECTION DEVICE AND METHOD FOR DECREASING STRAY LIGHT

A projection device having an image beam and an off-state light is provided, which includes a camera module, a condensing element, a digital micromirror device (DMD) and a shading element, wherein the DMD allows the image beam to enter the camera module, and the shading element is configured between the DMD and the condensing element to block the off-state light. 1. A projection device having an image beam and an off-state light , comprising:a camera module;a condensing element;a digital micromirror device (DMD) allowing the image beam to enter the camera module; anda shading element configured between the DMD and the condensing element to block the off-state light.2. A projection device as claimed in claim 1 , further comprising a light source claim 1 , a plurality of color filters and an integrator claim 1 , wherein the image beam is generated from the light source claim 1 , passes through the plurality of color filters claim 1 , is unified by the integrator and then incident to the DMD claim 1 , and the DMD has a micromirror array including a plurality of micromirrors to be rotated upon receiving the image beam so that the image beam is switched as the off-state light.3. A projection device as claimed in claim 2 , wherein the DMD is further configured to switch the image beam as a flat-state light.4. A projection device as claimed in claim 1 , further comprising an additional shading element disposed between the condensing element and the camera module.5. A projection device as claimed in claim 4 , wherein both of the shading element and the additional shading element are configured to block the off-state light and the flat-state light.6. A projection device as claimed in claim 5 , wherein the shading element and the additional shading element have respective shapes different from each other.7. A projection device as claimed in claim 5 , wherein the shading element and the additional shading element have the same shape.8. A projection device as claimed in claim 1 ...

Image Display Apparatus and Image Scanning Apparatus

This image display apparatus includes a light source emitting a laser beam, a scan mirror projecting an image by vertically and horizontally scanning the laser beam by swinging, and a scan control portion rendering the horizontal scanning amplitude of the scan mirror on the side of a projection image having a reduced length relatively large as compared with the horizontal scanning amplitude of the scan mirror on the side of the projection image having an increased length with respect to distortion in which the length of the upper side of the projection image and the length of the lower side of the projection image are different from each other. 1. An image display apparatus comprising:a light source emitting a laser beam;a scan mirror projecting an image by vertically and horizontally scanning the laser beam by swinging; anda scan control portion rendering a horizontal scanning amplitude of the scan mirror on a side of a projection image having a reduced length relatively large as compared with a horizontal scanning amplitude of the scan mirror on a side of the projection image having an increased length with respect to distortion in which a length of an upper side of the projection image and a length of a lower side of the projection image are different from each other.2. The image display apparatus according to claim 1 , whereinthe scan control portion is configured to switch between vertical scanning from the upper side of the projection image to the lower side of the projection image and vertical scanning from the lower side of the projection image to the upper side of the projection image and operate the scan mirror.3. The image display apparatus according to claim 2 , whereinthe scan control portion is configured to switch a vertical scanning direction to a direction from a side on which the horizontal scanning amplitude of the scan mirror is relatively reduced to a side on which the horizontal scanning amplitude of the scan mirror is relatively increased.4. ...

SCANNING TYPE PROJECTOR

A scanning type projector two-dimensionally projecting a laser beam and generating an image according to the present invention comprises: a light source having a light intensity corresponding to a pixel of the image and emitting a laser beam having an elliptical beam; a collimator lens collimating a laser beam emitted from the light source without converting the same into focused light; a beam contracting/shaping element that reduces a luminous beam width in a predetermined direction of the laser beam emitted from the collimator lens; a condensing lens that converts a laser beam emitted from the beam contracting/shaping element into focused light corresponding to a projection distance; and a two-dimensional scanning unit configured to two-dimensionally scan and project a laser beam emitted from the condensing lens. 1. A scanning type projector two-dimensionally projecting a laser beam and generating an image , comprising:a light source having a light intensity corresponding to a pixel of the image and emitting a laser beam having an elliptical beam;a collimator lens collimating a laser beam emitted from the light source;a beam contracting/shaping element that reduces a luminous beam width in a predetermined direction of the laser beam emitted from the collimator lens;a condensing lens that converts the laser beam emitted from the beam contracting/shaping element into focused light corresponding to a projection distance; anda two-dimensional scanning unit configured to two-dimensionally scan and project the laser beam emitted from the condensing lens.2. The scanning type projector according to claim 1 , wherein an elliptic major axis direction of the laser beam having an elliptical beam emitted from the light source and a luminous beam contracting direction of the beam contracting/shaping element are coincident with each other.3. The scanning type projector according to claim 2 , wherein the beam contracting/shaping element is a prism that receives and transmits a ...

Display apparatus and method for controlling display apparatus

A display apparatus includes: a display unit including a modulator that modulates a plurality of color light fluxes and a light source section that includes a plurality of light sources corresponding to at least any of the color light fluxes; a light source driver that supplies the light sources with pulse currents; and a controller that sets the cycle of each of the pulse currents and an ON-period of the pulses in the pulse current in accordance with the luminance of the light source, wherein when the luminance of any of the light sources is so set that the ON-period of the pulse current is shorter than a preset lower limit, the controller sets the length of the ON period of the pulse current to be equal to the lower limit or at a value longer than the lower limit and reduces the current value of the pulse current.

VARIABLE AND INTERLEAVED SCANNING IN LASER PROJECTORS

A method of operating a miniature projector that comprises: receiving image data to project; generating light beams for a screen; scanning the light beams according to a first pattern from a first edge to an ending edge in the screen to form at least one image, the first pattern being a wave pattern of scan lines such that amplitudes oscillate along a first axis as the beams progressively scan along a second axis, the second axis being substantially perpendicular to the first axis, wherein the first pattern has a first oscillation from the first edge that is directed in a first direction along the first axis; and scanning the light beams according to a second pattern from a second edge to a second ending edge for the screen to form at least another image, the second pattern being a wave pattern of scan lines such that amplitudes oscillate along the first axis as the beams progressively scan along the second axis, wherein the second pattern has a first oscillation from the second edge that is directed in a second direction along the first axis that is opposite the first direction. 1. A method comprising the steps of:receiving image data for images to scan;generating light beams responsive to the image data;scanning the light beams according to a first pattern from a first edge to an ending edge to form at least one image, the first pattern being a wave pattern of scan lines such that amplitudes oscillate along a first axis as the beams progressively scan along a second axis, the second axis being substantially perpendicular to the first axis, wherein the first pattern has a first oscillation from the first edge that is directed in a first direction along the first axis; andscanning the light beams according to a second pattern from a second edge to a second ending edge to form at least another image, the second pattern being a wave pattern of scan lines such that amplitudes oscillate along the first axis as the beams progressively scan along the second axis, wherein ...

Optical device

According to the present invention, there is provided an optical device comprising, a plurality of light sources each operable to provide a light beam; at least one beam combiner which is operable to combine the light beams from the plurality of light sources, to provide a combined light beam; a beam splitter, which is arranged to receive the combined light beam and to split the combined light beam into a primary light beam and a secondary light beam, wherein one or more characteristics of the secondary light beam are indicative of one or more characteristics of the primary light beam, wherein the beam splitter comprises a first surface through which the primary light beam is emitted from the beam splitter and a second surface through which the secondary light beam is emitted from the beam splitter; a mirror component which comprises a mirror, wherein the mirror component is arranged such that the mirror can reflect the primary light beam which is emitted through the first surface of the beam splitter and wherein the mirror can oscillate about at least one oscillation axis to scan the primary light beam; wherein the optical device further comprises a photodiode which is configured to receive the secondary light beam and to detect one or more characteristics of the secondary light beam, wherein the photodiode is configured to be offset from being parallel to at least one of the first surface or second surface of the a beam splitter, to reduce the amount of parasitic light which is directed to the mirror. There is further provided a corresponding method of projecting an image.

OPTICAL SCANNER

The present invention relates to a scanner provided with a plurality of elementary scanners each able to scan a different surface by means of a light beam. 1. Optical scanner that comprises:a support having a first plane face;at least one optical source able to emit a main optical beam with a wavelength λ;a plurality of elementary scanners that each comprise:a beam that comprises a movable part and a fixed part, said fixed part resting on the first face;a plurality of waveguides disposed on or in the movable part and intended to divide the main optical beam into a plurality of secondary optical beams;a phase-control optical array that comprises a plurality of optical phase shifters each coupled to a waveguide, disposed on or in an emission section of the movable part and which extends from a free end of the beam opposite to a fixed end; the movable part of at least one of the beams has, at rest, a deflection different from the deflections at rest of the movable parts of the other beams.2. Optical scanner according to claim 1 , wherein the movable parts of each of the beams all have claim 1 , at rest claim 1 , a different deflection.3. Optical scanner according to claim 1 , wherein each beam comprises claim 1 , from a first face towards a second face parallel to the first face claim 1 , a first layer claim 1 , a second layer and a third layer claim 1 , the deflection of movable part of each of the beams being imposed by a stress level of one or other or both of the first layer and of the third layer claim 1 , advantageously the stress level of one or other or both of the first layer and the third layer is a function of the thickness of the layer concerned.4. Optical scanner according to claim 3 , wherein the first layer and the third layer each comprise a dielectric material claim 3 , advantageously the dielectric material comprises silicon dioxide.5. Optical scanner according to claim 1 , wherein each optical phase shifter comprises a diffraction grating coupled to ...

PROJECTOR WITH PREFERRED LIGHTING UNIFORMITY

A projector includes a light source module, a collimator lens module, a wavelength conversion module, a first dichroic unit and a second dichroic unit. The light source module provides a first beam. The collimator lens module has a first part and a second part. The first beam passes the first part. The wavelength conversion module receives the first beam and includes a reflecting plate and a wavelength conversion layer. The first dichroic unit reflects the first beam. The reflecting plate reflects the first beam to generate a second beam passing the second part. The wavelength conversion layer is excited by the first beam to generate a third beam. The second dichroic unit allows passing of the third beam and a part of the second beam to generate a fourth beam, and reflects the other part of the second beam to generate a fifth beam. 1. A projector comprising:a light source adapted to emit a first beam;a collimator lens module having a first part and a second part divided by an axle, the first beam passing through the first part;a wavelength conversion module adapted to receive the first beam from the first part, the wavelength conversion module having a reflecting plate and a wavelength conversion layer, and the wavelength conversion layer being an annular structure disposed on the reflecting plate;a first dichroic unit disposed on position corresponding to the first part of the collimator lens module, the first dichroic unit being adapted to reflect the first beam toward the reflecting plate or the wavelength conversion layer via the first part, the reflecting plate being adapted to reflect the first beam for generating a second beam passing through the second part, and the wavelength conversion layer being adapted to be excited by the first beam for generating a third beam passing through the first part and the second part of the collimator lens module and the first dichroic unit; anda second dichroic unit disposed on position corresponding to the second part of ...

HIGH FRAME-RATE MULTICHANNEL BEAM-SCANNING MICROSCOPY

A beam-scanning optical design is described for achieving up to kHz frame-rate optical imaging on multiple simultaneous data acquisition channels. In one embodiment, two fast-scan resonant mirrors direct the optical beam on a circuitous trajectory through the field of view, with the trajectory repeat-time given by the least common multiplier of the mirror periods. Dicing the raw time-domain data into sub-trajectories combined with model-based image reconstruction (MBIR) 3D in-painting algorithms allows for effective frame-rates much higher than the repeat time of the Lissajous trajectory. Because sub-trajectory and full-trajectory imaging are different methods of analyzing the same data, both high-frame rate images with relatively low resolution and low frame rate images with high resolution are simultaneously acquired. 1. A system for beam-scanning and imaging , comprising:two synchronized fast-scanning resonant mirrors of differing resonant frequencies to scan the beam in a Lissajous trajectory across a sample surface;implementation of a data acquisition and analysis technique for binning the image data into user-defined temporal bins, resulting in user-defined frame-rates; anda strategy for interpolating the values of unsampled pixels using image interpolation ‘inpainting’ techniques, which include but is not limited to model-based image reconstruction (MBIR) and discrete cosine transform (DCT) coupled with a penalized least squares (DCT-LS), the image interpolation may use some or all of the available dimensions of information, including spatial information, temporal information, polarization information, and spectral information.2. The system of claim 1 , the system is capable of achieving up to kHz frame-rate optical imaging.3. The system of claim 1 , the system of capable of achieving optical imaging on multiple simultaneous data acquisition channels. The present U.S. patent application is related to and claims the priority benefit of U.S. Provisional Patent ...

OPTICAL DEVICE AND IMAGE DISPLAY APPARATUS

An optical device includes: an optical unit that is configured as a plate and includes a light incidence face on which light is incident; a support unit that includes a recessed arrangement portion in which the optical unit is arranged; and a first shaft portion and a second shaft portion that support the support unit in a manner which enables the support unit to oscillate, wherein a side face of the arrangement portion is separated from the optical unit between the optical unit and the first shaft portion and between the optical unit and the second shaft portion. 1. An optical device comprising:an optical unit that is configured as a plate and includes a light incidence face on which light is incident;a support unit that includes a recessed arrangement portion in which the optical unit is arranged; anda first shaft portion and a second shaft portion that support the support unit in a manner which enables the support unit to oscillate,wherein a side face of the arrangement portion is separated from the optical unit between the optical unit and the first shaft portion and between the optical unit and the second shaft portion.2. The optical device according to claim 1 ,wherein an adhesive is arranged at the separate part.3. The optical device according to claim 1 ,wherein the support unit further includes a notch portion between the optical unit and the first shaft portion, andan inner face of the notch portion constitutes a part of the side face of the arrangement portion.4. The optical device according to claim 1 ,wherein an adhesive is arranged in the notch portion.5. The optical device according to claim 1 ,wherein the planar shape of the arrangement portion is larger than the planar shape of the optical unit.6. The optical device according to claim 1 ,wherein the side face of the arrangement portion includes an abutting portion on which a side face of the optical unit abuts.7. The optical device according to claim 6 ,wherein the optical unit is positioned in the ...

FIBER-OPTIC SCANNER, ILLUMINATING DEVICE, AND OBSERVATION INSTRUMENT

A fiber-optic scanner equipped with a light-guiding optical fiber; the fiber-optic scanner including a plurality of vibration generating units disposed circumferentially at equal intervals on an outer peripheral surface of the optical fiber located on a base end side thereof at a predetermined distance from the emission end of the optical fiber to vibrate an emission end of the optical fiber in a plurality of directions; and a vibration damping member disposed at least in a position between base end-side edges of the vibration generating units and the emission end of the optical fiber, wherein the vibration damping member has a uniform shape of a rotating body rotated around the axis line of the optical fiber. 1. A fiber-optic scanner comprising:a light-guiding optical fiber;a plurality of vibration generating units disposed circumferentially at equal intervals on an outer peripheral surface of the optical fiber located on a base end side thereof at a predetermined distance from an emission end of the optical fiber to vibrate the emission end of the optical fiber in a plurality of directions; anda vibration damping member disposed at least in a position between base end-side edges of the vibration generating units and the emission end of the optical fiber, wherein the vibration damping member has a uniform shape of a rotating body rotated around the axis line of the optical fiber.2. The fiber-optic scanner according to claim 1 , wherein the vibration damping member is disposed over the entire length of the optical fiber from the vibration generating units to the emission end.3. The fiber-optic scanner according to claim 1 , wherein the vibration damping member is disposed from a position adjacent to the vibration generating units up to a position halfway through the optical fiber in the longitudinal direction thereof.4. The fiber-optic scanner according to claim 1 , wherein the vibration damping member is circumferentially divided with gaps left therein in ...

PROJECTOR AND PROJECTION SYSTEM THAT CORRECT OPTICAL CHARACTERISTICS, IMAGE PROCESSING APPARATUS, AND STORAGE MEDIUM

A projector that is capable of correcting optical characteristics without degrading gradation of a projected image. The projector includes a projection optical system for projecting a projected image on a projection plane. When performing projection based on RAW data obtained through image pickup, the RAW data is corrected based on correction parameters and developed, whereby image data is generated. A projected image corresponding to the image data is projected on the projection plane. 1. A projector that projects a projected image on a projection plane , comprising:a projection optical system configured to project the projected image on the projection plane;a developing unit configured to, when performing projection based on RAW data obtained through image pickup, perform, on the RAW data, correction processing based on correction parameters and development processing, to thereby generate image data; anda projection unit configured to project a projected image corresponding to the image data on the projection plane.2. The projector according to claim 1 , wherein the correction parameters are parameters based on optical characteristics of the projection optical system.3. The projector according to claim 2 , wherein in a case where a change in the optical characteristics of the projection optical system is detected claim 2 , the developing unit performs the development processing based on correction parameters obtained after the optical characteristics have been changed.4. The projector according to claim 3 , wherein in a case where at least one of a change in a zoom magnification claim 3 , a change in a focus position claim 3 , a change in an optical shift amount claim 3 , a change in an image inversion setting claim 3 , and a change in registration adjustment of a liquid crystal display device claim 3 , is detected claim 3 , the developing unit performs the development processing based on correction parameters obtained after the change.5. The projector according ...

METHOD FOR SETTING DRIVING CONDITIONS AND APPARATUS FOR SETTING DRIVING CONDITIONS OF OPTICAL SCANNING APPARATUS

A method and an apparatus for setting driving conditions applied in an optical scanning apparatus. The method for setting driving conditions includes attaching a scanning pattern detector and adjusting a scanning pattern detected by the scanning pattern detector by changing a drive signal applied to an actuator (steps S to S). The step of adjusting includes setting a first drive signal value of the drive signal applied to the actuator and a target amplitude of the scanning pattern (step S) and determining a frequency of the drive signal applied to the actuator by comparing an amplitude of the scanning pattern detected by changing the frequency of the drive signal applied to the actuator with the target amplitude while vibrating the actuator at the first drive signal value (step S). 1. A method for setting driving conditions applied in an optical scanning apparatus comprising an optical fiber that guides light from a light source and emits the light from a tip supported vibratably and an actuator that vibrates the tip of the optical fiber , the method comprising:attaching a scanning pattern detector configured to detect a scanning pattern of the light emitted from the tip of the optical fiber; and.adjusting the scanning pattern detected by the scanning pattern detector by applying a drive signal to the actuator to vibrate the tip and changing the drive signal, setting a first drive signal value of the drive signal applied to the actuator and a target amplitude of the scanning pattern; and', 'determining a frequency of the drive signal applied to the actuator by comparing an amplitude of the scanning pattern detected by changing the frequency of the drive signal applied to the actuator with the target amplitude while vibrating the actuator at the first drive signal value., 'wherein the step of adjusting comprises'}2. The method for setting driving conditions of claim 1 , wherein in the step of determining the frequency claim 1 , the frequency of the drive signal ...

ADJUSTING A RESONANT FREQUENCY OF A SCANNING MIRROR

Examples are disclosed that relate to scanning display systems. One example provides a display device comprising a controller, a light source, and a scanning mirror system. The scanning mirror system comprises a scanning mirror configured to scan light from the light source in at least one direction at a resonant frequency of the scanning mirror, and an electromechanical actuator system coupled with the scanning mirror and being controllable by the controller to adjust the resonant frequency of the scanning mirror. 1. A display device , comprising:a controller;a light source; and a scanning mirror attached to a frame, the scanning mirror configured to scan light from the light source in at least one direction at a resonant frequency of the scanning mirror, and', 'an electromechanical actuator system coupled with the scanning mirror and being controllable by the controller to adjust the resonant frequency of the scanning mirror, the electromechanical actuator system comprising a first actuator and a second actuator that each span respective gaps in the frame., 'a scanning mirror system comprising'}2. The display device of claim 1 , further comprising an electronic circuit configured to generate a control signal to control the electromechanical actuator system by comparing the resonant frequency to a frame rate of video received by the display device.3. The display device of claim 2 , wherein the electronic circuit is configured to synchronize a scan rate of the scanning mirror with a multiple of a frame rate of video received by the display device.4. The display device of claim 3 , wherein the scan rate is a horizontal scan rate.5. The display device of claim 1 , wherein the scanning mirror comprises a mirror attached to the frame via a first flexure and a second flexure.6. The display device of claim 5 , wherein the first actuator is coupled to the frame adjacent to the first flexure and the second actuator is coupled to the frame adjacent to the second flexure such ...

LIGHT SOURCE DEVICE, PROJECTOR, AND SPECKLE REDUCTION METHOD

A light source device includes: a light source unit provided with a plurality of laser light sources provided in an array, the laser light sources being divided into first and second laser light source groups; a first diffusion plate that diffuses light emitted by the first laser light source group and emits first diffused light; a second diffusion plate that diffuses light emitted by the second laser light source group and emits second diffused light having a diffusion angle greater than that of the first diffused light; and optical path merging members that bend the optical path of the first diffused light to merge the optical path of the first diffused light with the optical path of the second diffused light and supply third diffused light in which the first and second diffused light are mixed. 1. A light source device comprising:a light source unit provided with a plurality of laser light sources that are arranged in an array wherein the laser light sources are divided into a first laser light source group and a second laser light source group;a first diffusion plate that diffuses light emitted from said first laser light source group and that emits a first diffused light;a second diffusion plate that diffuses light emitted from said second laser light source group and that emits a second diffused light having a larger diffusion angle than said first diffused light; andan optical path merging member that bends an optical path of said first diffused light to merge with an optical path of said second diffused light and that supplies a third diffused light in which said first and second diffused light are mixed.2. The light source device as set forth in claim 1 , wherein:said first diffused light contains a plurality of first pencils of light rays that are each emitted from a respective laser light source of a plurality of laser light sources that make up said first laser light source group;said second diffused light contains a plurality of second pencils of light ...

Projection-type display device

A projection-type display device includes a light source unit, an electro-optical device that modulates light emitted from the light source unit, and a projection optical system that projects the light modulated by the electro-optical device. In the electro-optical device, when a mirror that modulates light assumes an ON posture, the light from the light source unit is reflected in an ON direction toward the projection optical system and, when the mirror assumes an OFF posture, the light from the light source unit is reflected in an OFF direction different from the ON direction. An image capture element that receives incident light that has entered the projection-type display device from the outside via the projection optical system is provided in a direction in which the incident light is reflected by the mirror that assumes the OFF posture.

HYBRID TWO-DIMENSIONAL (2D) SCANNER SYSTEM AND METHOD OF OPERATING THE SAME

Provided are a hybrid two-dimensional (2D) scanner system and a method of operating the same. The hybrid 2D scanner system includes a meta-surface based one-dimensional (1D) scanner and a mechanical scanner connected to the meta-surface based 1D scanner. In this scanner system, the mechanical scanner is operated as a 1D scanner. For this purpose, one of two rotational axes included in the mechanical scanner is maintained in a fixed position during a scanning operation. The meta-surface based 1D scanner may include a base substrate, a meta-surface that is arranged on the base substrate and includes a channel array, and a power supply configured to apply a voltage to the channel array. 1. A hybrid two-dimensional (2D) scanner system comprising:a meta-surface based one-dimensional (1D) scanner; anda mechanical scanner connected to the meta-surface based 1D scanner.2. The hybrid 2D scanner system of claim 1 , wherein the meta-surface based 1D scanner comprises:a base substrate;a meta-surface that is disposed on the base substrate and comprises a channel array; anda power supply configured to apply a voltage to the channel array.3. The hybrid 2D scanner system of claim 2 , wherein the channel array comprises a plurality of channels claim 2 , and wherein the power supply is configured to apply a voltage to each of the plurality of channels individually.4. The hybrid 2D scanner system of claim 2 , wherein the power supply comprises a voltage controller.5. The hybrid 2D scanner system of claim 3 , wherein each of the plurality of channels comprises:a first channel; anda plurality of second channels that are perpendicular to the first channel, wherein a length of each of the plurality of second channels is shorter than a length of the first channel.6. The hybrid 2D scanner system of claim 1 , wherein the mechanical scanner comprises a first rotational axis and a second rotational axis claim 1 , wherein one of the first rotational axis and the second rotational axis is fixed. ...

IMAGE DISPLAY APPARATUS, IMAGE DISPLAY METHOD, AND PROGRAM

An image display apparatus according to an embodiment of the present technology includes a first light source module, a second light source module, an output control unit, and an image generation unit. The first light source module emits a first laser light. The second light source module includes a light source unit that emits a second laser light and a phosphor layer that emits visible light by excitation by the second laser light. The output control unit controls outputs of the first laser light and the second laser light on a basis of an average and a dispersion of luminance values in pixels of an input image. The image generation unit generates an image on a basis of the first laser light emitted from the first light source module and the visible light emitted from the second light source module. 1. An image display apparatus , comprising:a first light source module that emits a first laser light;a second light source module including a light source unit that emits a second laser light and a phosphor layer that is excited by the second laser light to emit visible light;an output control unit that controls outputs of the first laser light and the second laser light on a basis of an average and a dispersion of luminance values in pixels of an input image; andan image generation unit that generates an image on a basis of the first laser light emitted from the first light source module and the visible light emitted from the second light source module.2. The image display apparatus according to claim 1 , whereinthe output control unit increases the outputs of the first laser light and the second laser light in a case where the average of the luminance values is larger than a first threshold value, and the dispersion of the luminance values is larger than a predetermined dispersion value.3. The image display apparatus according to claim 2 , whereinthe output control unit increases the outputs of the first laser light and the second laser light irrespective of a ...

Light Field Display Device and Method

The present invention provides a light field display device () comprising an array of light field display elements () populating a display surface, each display element () comprising: a beam generator () for generating an output beam of light; a radiance modulator () for modulating the radiance of the beam over time; a focus modulator () for modulating the focus of the beam over time; and a scanner () for scanning the beam across a two-dimensional angular field. 1. A light field display device comprising an array of light field display elements populating a display surface , each display element comprising:(a) a beam generator for generating an output beam of light;(b) a radiance modulator for modulating the radiance of the beam over time;(c) a focus modulator for modulating the focus of the beam over time; and(d) a scanner for scanning the beam across a two-dimensional angular field.2. The device of claim 1 , wherein the beam generator comprises at least one light emitter selected from the group comprising: a laser; a laser diode; a light-emitting diode; a fluorescent lamp; and an incandescent lamp.3. The device of claim 1 , wherein the beam generator comprises multiple light emitters with different emission spectra claim 1 , the light emitters selected from the group comprising: a laser; a laser diode; a light-emitting diode; a fluorescent lamp; and an incandescent lamp.4. The device of claim 1 , wherein the radiance modulator is intrinsic to the beam generator.5. The device of claim 1 , wherein the radiance modulator is selected from the group comprising: an acousto-optic modulator; an absorptive electro-optic modulator; and a refractive electro-optic modulator.6. The device of claim 1 , wherein the focus modulator is selected from the group comprising: a liquid crystal lens; a liquid lens; a deformable membrane mirror; a deformable-membrane liquid-filled lens; an addressable lens stack; and an electro-optic lens.7. The device of claim 1 , wherein the scanner is ...

HEAD MOUNTED DISPLAY WITH MECHANICAL SCANNING

A head mounted display (HMD) system includes a display for emitting light toward an eye-ward side of the system and which allows both ambient light and emitted light to reach an eye of a user. The system provides augmented reality (AR) based viewing and includes a rotatable substrate supporting a set of light emitting elements (). Each light emitting element is oriented toward a world side of the HMD system. A rotatable reflective surface is positioned on the world side of the set of the light emitting elements. The reflective surface reflects emitted light toward a user eye. A motor, coupled to the rotatable substrate and the rotatable reflective surface, rotates these elements about a common axis and a display driver selectively activates the light emitting elements during this rotation in accordance with an illumination sequence so as to provide an image. 1. A head mounted display (HMD) system comprising:a substrate supporting a set of light emitting elements, wherein each light emitting element is oriented toward a world side of the HMD system;a reflective surface oriented toward a user eye;a motor coupled to the substrate and the reflective surface for motion of the substrate and reflective surface; anda display driver electrically coupled to the set of light emitting elements and configured to selectively activate the set of light emitting elements so as to generate an image during motion of the substrate and the reflective surface.2. The HMD system of claim 1 , further comprising:a circular, transparent support for the reflective surface.3. The HMD system of claim 2 , wherein the circular claim 2 , transparent support has a surface supporting the reflective surface claim 2 , and wherein the reflective surface is spherically shaped with a center on an eye-ward side of the HMD system.4. The HMD system of claim 2 , wherein the circular claim 2 , transparent support has a radius of curvature greater than 10 mm.5. The HMD system of claim 2 , wherein the center of ...

DISPLAY SYSTEM, INFORMATION PRESENTATION SYSTEM, CONTROL METHOD OF DISPLAY SYSTEM, STORAGE MEDIUM, AND MOBILE BODY

A display system includes a projector that projects a virtual image onto a target space to allow a target person to visibly recognize the virtual image and a controller that controls display of the virtual image. When the projector projects a virtual image corresponding to a caution object, the controller selects at least one reference point from one or more candidate points existing around the caution object and associates the virtual image with the at least one reference point. 1. A display system that projects an image onto a reflection member and superimposes the image reflected by the reflection member as a virtual image on a target space in front to allow a target person to visually recognize the virtual image , the display system comprising:a projector that projects the image; anda controller that controls display of the image,wherein,when the projector projects an image corresponding to a caution object, the controller selects at least one reference point from one or more candidate points existing around the caution object and associates the virtual image with the at least one reference point.2. The display system according to claim 1 , wherein the controller extracts the one or more candidate points using a captured image.3. The display system according to claim 1 , wherein the controller extracts a sign of a prefixed size as the one or more candidate points claim 1 , and selects the sign as the at least one reference point.4. The display system according to claim 1 , wherein claim 1 , out of a plurality of target objects aligned at predetermined intervals in the target space in front claim 1 , the controller extracts a target object existing around the caution object as the one or more candidate points claim 1 , and selects the target object existing around the caution object as the at least one reference point.5. The display system according to claim 1 , wherein the one or more candidate points are a plurality of candidate points claim 1 ,wherein, in the ...

INFORMATION DISPLAY APPARATUS

A method for displaying information on a screen includes modifying tone values to compress the tone of a main image; projecting by a first projector the main image with compressed tones generated with a first polarization component; modifying tone values of a sub-image for correcting tones of the sub-image; generating a correction image; and projecting by a second projector the correction image with a second polarization component different from the first polarization component over the main image projected by the first projector such that the main image is buried by an overlapped projection of the main image and the correction image generated by using the sub-image and an offset value to provide the sub-image to a viewer with a naked eye and to provide the main image to another viewer with a polarizer. 2. The method of claim 1 , wherein the method further comprises mutually converting luminance values of the image to intensities of the images projected on a screen claim 1 , and the tone value comprises the tone value in the intensity converted by the luminance value of the image by conversion of the luminance values.3. The method of claim 1 , wherein the second polarization component of the second projector blocks the polarization component of the image projected by the second projector.4. The method of claim 1 , wherein the correction image allows the correction image to be viewed with the naked eye and allows the main image to be viewed through a polarized eyeglass which passes the polarization component of the image projected by the first projector while blocking the polarization component of the image projected by the second projector.6. The program product of claim 5 , wherein the program further comprises a program code to mutually convert luminance values of the image to intensities of the images projected on a screen claim 5 , and the tone value comprises the tone value in the intensity converted by the luminance value of the image by conversion of the ...

CONTROL APPARATUS, CONTROL METHOD, DRIVING APPARATUS, AND ELECTRONIC APPARATUS

A generation unit generates adjustment information to adjust a first clock indicating a timing of illumination of a laser beam to scan on a screen, based on a scanning position to be scanned by the laser beam. 1. A projection apparatus comprising:an optical system including a light source unit; anda signal processing system configured to generate a first control signal depending on a scanning position on a screen; anda drive circuit configured to drive the light source unit in synchronization with the first control signal.2. The projection apparatus according to claim 1 , wherein the light source unit includes a first laser light source configured to emit a first color light claim 1 , a second laser light source configured to emit a second color light claim 1 , and a third laser light source configured to emit a third color light.3. The projection apparatus according to claim 2 , wherein the drive circuit is configured to output a first drive current to the first laser light source claim 2 , a second drive current to the second laser light source claim 2 , and a third drive current to the third laser light source.4. The projection apparatus according to claim 1 , wherein the optical system includes a light-receiving element configured to detect an optical output of the light source unit and to supply a power monitor signal to the signal processing system.5. The projection apparatus according to claim 1 , wherein the optical system includes a scanner unit having a driving mirror configured to direct a light from the light source unit to scan on the screen in a horizontal and a vertical direction.6. The projection apparatus according to claim 5 , wherein the scanner unit includes a scanner unit having a first driving mirror configured to direct a light from the light source unit to scan in a horizontal direction claim 5 , and a second driving mirror configured to direct the light from the light source unit to scan in a vertical direction.7. The projection apparatus ...

SELF ALIGNING IMAGER ARRAY

Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error. 1. A display system , comprising: a plurality of reference marks disposed on the continuous surface display screen;', 'a first imaging module;', 'a first servo system for determining placement of a first conveyed sub-image in a first given area of the continuous surface display screen, wherein at least one reference mark of the plurality of reference marks is used to determine placement of the first conveyed sub-image in the first given area;', 'a second imaging module; and', 'a second servo system for determining placement of a second conveyed sub-image in a second given area of the continuous surface display screen, wherein at least one reference mark of the plurality of reference marks is used to determine placement of the second conveyed sub-image in the second given area; and', 'a control unit operable to:', 'provide feedback signals to the first or second servo system;', 'access one or more alignment tables containing data representing physical parameters associated with the continuous surface display screen;', 'determine the correspondence between the determined placement of the first conveyed sub-image in the first given area of the ...

PROJECTION SYSTEMS AND METHODS

Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually. 1. An image projector comprising:a first light source operable to emit light having a first optical spectrum;a second light source operable to emit light having a second optical spectrum different from the first optical spectrum;an optical combiner arranged to combine the light from the first and second light sources and to direct the combined light onto an imaging element operative to spatially modulate the combined light;a phase modulator located in a light path between the first light source and the optical combiner, the phase modulator operable to provide a phase pattern which causes the first light to be steered to desired locations on the imaging element;a projection lens operative to project the combined light that has been modulated by the imaging element.2. The image projector according to wherein the imaging element comprises an amplitude modulator.3. The image projector according to wherein the amplitude modulator comprises a DMD.4. The image projector according to wherein the phase modulator comprises an LCOS phase modulator.5. The image projector according to wherein the light from the first and second light sources is incident on the imaging element from the same angle of incidence.6. The image projector according to wherein the first light source comprises a first laser.7. The image projector according to wherein the second light source comprises a second laser.8. The image projector according to wherein the optical combiner comprises a color beam splitter.9. The image projector according to wherein the optical combiner ...

LARGE DISPLAY SYSTEMS WITH SCREEN TENSION ADJUSTABILITY

Large format display systems are described that are reconfigurable between an open configuration designed for performing maintenance on the system and a closed configuration designed for normal operations of the display system. In the closed configuration, the display screen is intentionally subjected to a substantial amount of tensile force to advantageously stabilize the display screen. That substantial tensile force is generated by a sturdy stationary frame that the display screen is anchored against in the closed configuration. When the display system is reconfigured to the open configuration, the display system is no longer anchored against the stationary frame. The process of reconfiguring the display system from the closed configuration to the open configuration includes relieving most of the tensile force applied to the display screen using adjustable tensioning mechanisms of the display systems. 1. A display system comprising:a support to hold one or more imaging engines; anda screen assembly comprising a display screen mounted within a frame and positionable to receive and display images projected from the one or more imaging engines, the display screen having first and second edges on opposite sides of the display screen,wherein the display screen is mounted within the frame by: (i) a fixed display screen hanger that fixedly couples a first portion of the first edge relative to the frame such that the first portion is restrained from moving along an axis parallel to the first edge, and (ii) a plurality of movable display screen hangers that movably couple a plurality of portions of the first edge relative to the frame such that the plurality of portions are movable along the axis parallel to the first edge.2. The display system of claim 1 , wherein the first portion is centered along the first edge of the display screen.3. The display system of claim 2 , wherein the plurality of portions of the first edge that are movably coupled to the frame by the ...

LASER LIGHTING HAVING SELECTIVE RESOLUTION

In an example, the present invention provides an optical engine apparatus. The apparatus has a laser diode device, the laser diode device characterized by a wavelength ranging from 300 to 2000 nm or any variations thereof. In an example, the apparatus has a lens coupled to an output of the laser diode device and a scanning mirror device operably coupled to the laser diode device. In an example, the apparatus has an un-patterned phosphor plate coupled to the scanning mirror and configured with the laser device; and a spatial image formed on a portion of the un-patterned phosphor plate configured by a modulation of the laser and movement of the scanning mirror device. 120.-. (canceled)21. An apparatus for lighting , the apparatus being selected from an application consisting of at least one of a white lighting , a white spot lighting , a flash lights , an automobile headlight , or an all-terrain vehicle lighting , the apparatus comprising: a laser diode device, characterized by a wavelength;', 'a lens coupled to an output of the laser diode device;', 'a scanning mirror device operably coupled to the laser diode device;', 'an un-patterned phosphor plate coupled to the scanning mirror device and configured with the laser diode device; and', form a first spatial image having a first resolution on a first portion of the un-patterned phosphor plate by a modulation of the laser diode device and movement of the scanning mirror device; and', 'form a second spatial image having a second resolution on a second portion of the un-patterned phosphor plate, the second resolution being different than the first resolution, wherein the second spatial image is formed concurrently with the first spatial image on the un-patterned phosphor plate., 'a controller coupled to the laser diode device and the scanning mirror device, the controller configured to], 'an optical engine apparatus for selective resolution comprising22. The apparatus of wherein the un-patterned phosphor plate comprises ...

DISPLAY DEVICE, IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM

Provided is a display device including an image display unit configured to display an image with a plurality of pixels arranged on a display surface, an eyepiece optical unit configured to project the display surface of the image display unit in a manner that a predetermined angle of view is obtained, and an image correction unit configured to correct a display image on the display surface at a position of each of representative pixels which are discretely located on the display surface, on the basis of distortion generated due to the eyepiece optical unit. 1. A display device comprising:an image display unit configured to display an image with a plurality of pixels arranged on a display surface;an eyepiece optical unit configured to project the display surface of the image display unit in a manner that a predetermined angle of view is obtained; andan image correction unit configured to correct a display image on the display surface at a position of each of representative pixels which are discretely located on the display surface, on the basis of distortion generated due to the eyepiece optical unit.2. The display device according to claim 1 , wherein a motion vector holding part configured to hold a motion vector expressing the distortion generated due to the eyepiece optical unit at the position of the representative pixel,', 'a vector interpolation part configured to interpolate a motion vector at a position of each pixel other than the representative pixel on the basis of the motion vectors of one or more representative pixels in the neighborhood, and', 'a pixel correction part configured to provide, by use of the motion vector, distortion in a direction opposite to the distortion generated due to the eyepiece optical unit to each pixel on the display surface and to correct the pixel., 'the image correction unit includes'}3. The display device according to claim 2 , further comprising:an optical simulator configured to trace a light ray of the display image in ...

Image processing apparatus, image processing method, and program

This disclosure relates to an image processing method, an image processing method, and a program for easily correcting a defocus blur. A defocus blur conversion section sets an appropriate amount of defocus blur by referencing a database in accordance with current lens conditions of a projector (zoom/shift/focus). A defocus blur correction signal processing section generates, through signal processing, a corrected image in accordance with the defocus blur amount from the defocus blur amount conversion section in such a manner that an input image coincides with an output image. This disclosure can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus or the like.

Liquid crystal device and electronic apparatus

A liquid crystal device includes a reflection-type liquid crystal panel in which a first substrate provided with a reflective layer and a second substrate having light-transmissivity face each other via a liquid crystal layer. In the liquid crystal device, a λ/4 phase difference plate is arranged in an optical path in which light incident from the second substrate side is reflected by the reflective layer and emitted from the second substrate side, and a phase difference compensation layer such as a C plate and O plate provided integrally with the liquid crystal panel is provided in the optical path. The λ/4 phase difference plate is an inorganic material film provided on a second end surface facing the second substrate in the polarized light separating element. The phase difference compensation layer is an inorganic material film provided on a surface of the second substrate opposite to the liquid crystal layer.

ILLUMINATION DEVICE AND PROJECTOR

An illumination device includes a light emitting element emitting first light, wavelength conversion element converting the first light into second, first optical element, second optical element having a first area transmitting the second light, and second area transmitting part of the first light and reflecting another part, and third optical element having a third area transmitting the second light, and fourth area transmitting part of the first light and reflecting another part. The first area first light transmittance in the second optical element is higher than that in the second area, the second optical element position made switchable between first and second positions, the third area first light transmittance in the third optical element is higher than that in the fourth area, the third optical element position is made switchable between third and fourth positions, and the fourth area first light transmittance is different from that in the second area. 1. An illumination device comprising:a light emitting element configured to emit first light in a first wavelength band;a wavelength conversion element configured to convert the first light into second light in a second wavelength band different from the first wavelength band;a first optical element configured to reflect one of the first light and the second light, transmit another of the first light and the second light, and make the first light enter the wavelength conversion element;a second optical element having a first area configured to transmit the second light, and a second area configured to transmit a part of the first light and reflect another part of the first light; anda third optical element having a third area configured to transmit the second light, and a fourth area configured to transmit a part of the first light and reflect another part of the first light, whereinin the second optical element, a transmittance of the first light in the first area is higher than a transmittance of the first ...

Light source for ophthalmic applications

A light source for providing a light beam to an ophthalmic instrument with a predetermined spectral content, with a first light source device () for providing a first beam of light () along a first optical axis and with a radiation opening angle (α). A mirror body () has a mirror aperture () aligned with the first optical axis for allowing the first beam of light () to partially pass, and a mirror surface () adjacent to the mirror aperture () for directing radiation from the first beam of light () back to the layer of wavelength conversion material (). Also, a second light source device () may be present for providing a second beam of light () along a second optical axis, and a dichroic mirror () for combining the first beam of light () and the second beam of light () into a combined beam of light (). 1. A light source for providing a light beam to an ophthalmic instrument , the light beam having a predetermined spectral content ,the light source comprising a first light source device for providing a first beam of light along a first optical axis and with a radiation opening angle,the first light source device comprising a layer of wavelength conversion material which during operation is exposed to exciting radiation originating from the first light source device to produce the first beam of light, anda mirror body having a mirror aperture, the mirror aperture being centred on the first optical axis for allowing the first beam of light to partially pass, and a mirror surface adjacent to the mirror aperture for directing radiation from the first beam of light back to the layer of wavelength conversion material.2. The light source according to claim 1 , wherein the layer of wavelength conversion material is directly attached to a radiation emitting surface of the first light source device.3. The light source according to claim 1 , wherein the mirror aperture is positioned at a height h from the layer of wavelength conversion material.4. The light source according to ...

Image projection apparatus

In a reflection-type image display for use in an image projection apparatus, when normal vectors of a pixel reflection surface in image display and non-display states are VA and VB, respectively, a Y axis is set in a normal direction of an image display surface with the pixel center as an origin, an X axis is set in a direction perpendicular to the Y axis and the normal vector VA, and a projection of the vector VB onto an XY plane is vb, the projection vb is at a predetermined angle not parallel to the Y axis, and among projections of illumination light incident on the pixel reflection surfaces onto the XY plane, a projection forming a maximum angle with respect to the Y axis exists only on a side with respect to the Y axis where a region in which the projection vb exists lies.

PROJECTION APPARATUS

Provided is a projection apparatus for projecting an image which can be seen stereoscopically, wherein the apparatus is made smaller and the definition of the projected image is higher than would be the case if the present configuration were not employed. The projection apparatus is an apparatus for projecting an image which can be seen stereoscopically, by scanning with one set of at least red, green, and blue laser beams, and includes a light source section that emits the laser beams, a scan section that scans a projection region two-dimensionally with the laser beams, and a microlens array that includes microlenses on which the laser beams from the scan section are incident and that changes emission angles of the laser beams in accordance with incident positions of the laser beams on the microlenses to create a light ray field in which light rays whose positions and directions are controlled are emitted from each point on surfaces of the microlenses in accordance with an image to be projected. 1. A projection apparatus for projecting an image which can be seen stereoscopically , by scanning with one set of at least red , green , and blue laser beams , the projection apparatus comprising:a light source section that emits the laser beams;a scan section that scans a projection region two-dimensionally with the laser beams;a microlens array that includes a plurality of microlenses on which the laser beams from the scan section are incident and that changes emission angles of the laser beams in accordance with incident positions of the laser beams on the microlenses to create a light ray field in which light rays whose positions and directions are controlled are emitted from each point on surfaces of the microlenses in accordance with an image to be projected;a projection lens that makes the laser beams emitted from the light source section be collimated beams and makes the collimated beams enter the scan section; anda second projection lens on which the laser beams ...

PROJECTION TYPE DISPLAY APPARATUS AND IMAGE DISPLAY METHOD

A projection type display apparatus includes illumination unit that emits a plurality of color lights having a predetermined polarization direction, a plurality of optical path adjustment units that totally reflect the plurality of color lights, respectively, a plurality of optical modulation units that modulates the plurality of color lights totally reflected by the plurality of optical path adjustment units, respectively, to emit a plurality of modulated color lights, a synthesis unit that emits the plurality of modulated color lights emitted from the optical modulation units in a same direction, and a correction unit that is arranged on an optical path between the illumination unit and the synthesis unit and that changes a polarization state of light that entered the correction unit to covert light incident on the synthesis unit into linearly polarized light. 1. A projection type display apparatus comprising:an illumination unit that emits a plurality of color lights having a predetermined polarization direction;a plurality of optical path adjustment units that totally reflect the plurality of color lights, respectively;a plurality of optical modulation units that modulates the plurality of color lights totally reflected by the plurality of optical path adjustment units, respectively, to emit a plurality of modulated color lights;a synthesis unit that emits the plurality of modulated color lights emitted from the optical modulation units in a same direction; anda correction unit that is arranged on an optical path between the illumination unit and the synthesis unit and that changes a polarization state of light that entered the correction unit to covert light that is incident on the synthesis unit into linearly polarized light.2. The projection type display apparatus according to claim 1 , wherein the correction unit changes the polarization state of the entered light to cancel a phase difference between an S-polarized light component and a P-polarized light ...

PROJECTOR

A projector includes a light source portion; and an optical scanning portion that scans light from the light source portion, wherein the light source portion comprises a first holder that holds a light source, and a second holder that holds an optical portion through which light from the light source is emitted, and the first holder and the second holder are arranged in that order from a light emitting direction. 1. A projector comprising:a light source portion; andan optical scanning portion that scans light from the light source portion, whereinthe light source portion comprises a first holder that holds a light source, and a second holder that holds an optical portion through which light from the light source is emitted, andthe first holder and the second holder are arranged in that order from a light emitting direction.2. The projector of claim 1 , wherein the first holder and the second holder are fixed by welding.3. The projector of claim 2 , wherein the welding is laser welding.4. The projector of claim 3 , wherein the laser welding is applied to a plurality of positions on the first holder and the second holder.5. The projector of claim 4 , wherein the light source is sandwiched between the plurality of positions when viewed from an optical axis direction.6. The projector of claim 1 , wherein one of the first holder or the second holder is made of light transmitting resin claim 1 , and the other one is made of light absorbing resin.7. The projector of claim 1 , wherein the first holder is made of light transmitting resin claim 1 , and the second holder is made of light absorbing resin.8. The projector of claim 6 , wherein the light transmitting resin transmits 15% or more laser light of 800 nm to 1100 nm.9. The projector of claim 5 , whereinthe first holder is made of light transmitting resin, andthe first holder comprises a protruding portion on the opposite side of a laser welding surface of the second holder.10. The projector of claim 9 , wherein the ...