УСТРОЙСТВО ОПТИКО-МЕХАНИЧЕСКОГО СКАНИРОВАНИЯ

Способ оптического разложения изображения или фильма

OPTO-ELECTRONIC COLLECTION MECHANISM

ISOLATED THE WAFER WITH MICRO MIRRORS

Picture composition mechanism for TV home receivers.

ELECTRONIC HIGH-SPEED CAMERA.

PICTURE RECORDING PROCEDURE WITH '' PUSH BROOM '' SCANNING

PROCEDURE FOR THE OPTICAL-MECHANICAL SCANNING OF TWO FIELDS OF VIEW AND DEVICE FOR THE EXECUTION OF THE PROCEDURE.

DUAL FIELD OF VIEW SENSOR

DUAL FIELD OF VIEW SENSOR

LIGHT BEAM DEFLECTION

FLYING SPOT SCANNER

FLYING SPOT SCANNER

OPTICAL SCANNING DEVICE FOR PRODUCING A MULTIPLE LINE SCAN USING A LINEAR ARRAY OF SOURCES

OPTICAL SCANNING DEVICES

VARIABLE SPOT SIZE SCANNING SYSTEM

DIGITAL TELEVISION SYSTEM

... 77 DIGITAL TELEVISION SYSTEM A digital television system (10) is provided. System (10) may receive a video signal at composite video interface and separation circuit (16). The video signal is separated into separate video signals by composite video interface and separation circuit (16). The separate video signals are converted to digital video signals in analog to digital converter circuit (18). Line slicer (14) divides each line of digital video signal into a plurality of channels such that each channel may be processed in parallel by channel signal processors (22a) through (22d). Each channel signal processor (22a) through (22d) may provide two lines of output for each line of video input. The processed digital video signals may be formatted for displays (26a) through (26c) in formatters (24a) through (24c).

Einrichtung zur mechanischen punktweisen Abtastung von Bildern und Gegenständen für die Zwecke der Fernmeldetechnik.

Vorrichtung zur Abtastung von Filmen.

Optische Abtastvorrichtung zum Wiedergeben von Bildern

Anordnung zur Abtastung von Bildvorlagen

Anordnung zur Abtastung von Bildvorlagen

Vorrichtung zur periodischen Ablenkung eines Lichtstrahlenbündels

Vorrichtung zur Erzeugung von zwei quer zu ihrer Längsrichtung wandernden Bildern eines quer zu seiner Längsrichtung wandernden Schlitzes auf einer gemeinsamen Projektionsebene

VORRICHTUNG ZUR INFORMATIONSWIEDERGABE DURCH ZEILENFOERMIGE ABTASTUNG EINER FLAECHE MIT EINEM LICHTSTRAHL.

Optisch-mechanische Abtastvorrichtung

Einrichtung zum Erzeugen eines Bildmusters

Process and device for the reception of television on screen of various analyses and their synchronization

Improvements brought to optical systems for television and of the similar goals

Improvement with the decomposition and the composition of the images, particularly in television

Device analyzer and reconstituor of image for television and telephotography

SCANNING DEVICE FOR OPTICAL SYSTEMS

Apparatus for optically surface testing

Device carrying out the remote control of the image of an object

DISPOSITIF POUR L'EXPLORATION D'IMAGES

LA PRESENTE INVENTION SE RAPPORTE A UN DISPOSITIF POUR L'EXPLORATION D'IMAGES. DANS CE DISPOSITIF, POUR LE BALAYAGE DES LIGNES DE L'IMAGE, ON UTILISE UN POLYGONE ROTATIF REFLECHISSANT 3 ET COMME RECEPTEUR DE SIGNAUX UN DETECTEUR OU EXPLORATEUR 1. ENTRE LE RECEPTEUR 1 ET LE POLYGONE 3, ON A PREVU UN SYSTEME OPTIQUE 2 DONT LA SURFACE D'IMAGE VIRTUELLE SE TROUVE DANS L'AXE 4 DU POLYGONE 3 ET LA SURFACE D'IMAGE REELLE A UN ECARTEMENT DE L'AXE 4 DU POLYGONE EGALE A LA COTE SUR PLAT DE CE DERNIER. EN AVANT DU POLYGONE 3, UN MIROIR CREUX SPHERIQUE 11 EST PREVU DONT LA SURFACE D'IMAGE COINCIDE AVEC CELLE DES SURFACES SUR LAQUELLE SE DEPLACE L'IMAGE DU RECEPTEUR 1 DEVELOPPEE PAR LE SYSTEME OPTIQUE 2 LORSQUE LE POLYGONE TOURNE. UNE LENTILLE DE CHAMP 9 PREVUE SUR CETTE SURFACE DEVIE LE PINCEAU CENTRAL DE MANIERE A LE FAIRE APPARAITRE A L'EXTERIEUR DE L'AXE DE ROTATION 4. UN MIROIR PIVOTANT 13 ASSURE LE BALAYAGE DE L'IMAGE EN HAUTEUR. CE DISPOSITIF S'APPLIQUE AU BALAYAGE OU A L'EXPLORATION DES IMAGES ...

Improvements with the systems of television

ELECTRONIC OBSERVATION DEVICE.

OPTICAL DEVICE OF SWEEPING TO PRODUCE A SWEEPING SEVERAL LINES USING A LINEAR NETWORK OF SOURCES

Optico-mechanical scanning device

Apparatus for remotely transmitting the images of objects and animated views

GENERATING SYSTEM FOR RASTERING LASER BEAM, IN PARTICULAR FOR PROJECTING IMAGES

OPTICO-MECHANICAL DEVICE OF SWEEPING

Method and equipment to carry out television

Device of telephotography and television

CAMPO DUPLO DE SENSOR VISUAL

FORFARANDE OCH ANORDNING FOR BILDAVSOKNING

IMAGE PROJECTOR

An image projector includes an illumination arrangement with a number of illumination sources and a tilt-mirror assembly, all operating under control of a controller. An optical arrangement directs illumination from the illumination sources towards the mirror and on to an image plane. A collimating arrangement collimates the illumination from the image plane to generate a collimated image directed to an exit stop. The controller (830) modulates an intensity of each of the illumination sources (808) synchronously with tilt motion of the mirror (814) according to the content of the digital image. In certain implementations, the illumination sources (808) are spaced apart. Although the tilt motion brings each illumination source to scans across only part of a dimension of the field of view, all of the illumination sources together scans across the entirety of the one dimension.

DISPLAY SYSTEM HAVING 1-DIMENSIONAL PIXEL ARRAY WITH SCANNING MIRROR

Display systems are described including augmented 1-dimensional pixel arrays and scanning mirrors. In one example, a pixel array includes first and second columns of pixels, relay optics configured to receive incident light and to output the incident light to a viewer, and a scanning mirror disposed to receive the light from the first and second columns of pixels and to reflect the received light toward the relay optics. The scanning mirror may move between a plurality of positions while the first and second columns emit light in temporally spaced pulses so as to form a perceived image at the relay optics having a higher resolution relative to the pixel pitch of the individual columns. Foveated rendering may provide for more efficient use of power and processing resources.

METHOD APPARATUS FOR SYNCHRONIZING PHOTOGRAPHIC

ROTATING-MIRROR OPTICAL SCANNING SYSTEM WITH OPTICAL PATH LENGTH COMPENSATION

Method and apparatus for synchronizing photographic records of digital information

An electrical signal recording and playback system is described in which an analog input signal is converted to a digital signal that pulses a light source to form a single, series-recorded track of binary coded digital information including information spots arranged in groups, which track is played back in a similar manner. The photographic film is a compact, permanent record of long, useful lifetime which may be photographically copied to provide a plurality of inexpensive copies. Recorded information is synchronized for playback by detecting a configuration of the digital signal, either from known characteristics of the signal or from information added to the signal during recording. The information thus read out is suitably employed for shifting digital words in a reassembly shift register until proper word synchronization is achieved.

Scanning apparatus

Magnetically-suspended armature

Method of and apparatus for producing television pictures

Improved line scanner

A line scanning apparatus includes a cylindrical housing which holds a spin mirror (4), a detector array (8), a multiplexer assembly (34), an analog-to-digital converter (54), a shaft encoder (60), digital processing apparatus and memory storage devices (66). Inertial navigation system (INS) reference information, including velocity-to-height ratio data is provided from the inertial navigation system of the aircraft or other appropriate sensors. The line scanning apparatus further includes optics for focusing radiation which is reflected into the optics by the spin mirror which is inclined at about a 45° angle to the optical axis. The detector array comprises a plurality of radiation detector cells which provide a plurality of synchronously sampled signals representative of the amount of radiation impinging on the detector array at any given time. The spin mirror is attached to a spin mirror motor which is further attached to the shaft encoder. The shaft encoder provides positional data ...

MULTIPLE FIELD OF VIEW SENSOR

Images of two fields of view of one or two scenes in a radiation sensor are generated by use of a single detector and common signal process circuitry. The two imaged fields of view, typically a narrow view and a wide view, are provided by two independent telescopes (18, 20), and are combined by use of a field-of-view switch (32) comprising a chopper wheel (34) or an optical switch in synchronized operation with a mirror scanner (22). The same field-of-view switch is employed in performing detector non-uniformity correction functions, such as automatic responsivity control and direct current restoration. Folding optics couples scanned radiation from the scanner to the switch. An additional field of view may be introduced by displacing a folding mirror of the folding optics. Also, a portion of a reflecting surface of the switch may be tilted to admit a reference beam of radiation useful in performing the functions of responsivity control and D.C. restoration.

Image pick-up device

Optical scanning device

PICTURE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a picture display device in which the number of gradation is easily increased without greatly increasing the amount of data and without having a large circuit modification and to provide a more fertile picture expression. SOLUTION: An LED array, in which plural LEDs are arranged in one perpendicular column, emits light beams with the luminance corresponding to the gradation value on digital picture data. The column-formed light beam radiated from the LED array is horizontally scanned and displays a two-dimensional picture. In accordance with gradation values D0 and D1 on digital picture data, driving pulses, which drive each LED on the LED array, are generated by selectively gating clocks A, B and C. Thus, each LED emits the light with the luminance corresponding to the gradation values on the digital picture data. The pulse widths of the clocks A, B and C are varied for every picture frame. Thus, the luminance of each light emitting element is varied in ...

PROJECTION TELEVISION RECEIVER

PURPOSE: To obtain a picture of a large screen with high brightness and high picture quality by dividing a video signal for one picture into plural numbers and scanning plural light beams modulated by plural acoustooptical modulators corresponding to different parts of one screen. CONSTITUTION: Four light beams L1, L2, L3, L4 radiate from a light source 1. A multi-channel acoustooptical modulator(AOM) 2 has 4 AOMs, each of which receives an AOM drive signal C corresponding to plural video signals being divisions of one picture of the video signal. The light beam modulated by the AOM 2 is made incident in a horizontal deflection mirror 3, in which horizontal deflection is applied. Then the light is made incident into four vertical mirrors 4,..., in which vertical deflection is implemented, and the resulting light radiates to a screen 5 and scanned thereon. In this case, pictures being four divisions of one picture are displayed respectively simultaneously onto small areas P1, P2, P3, P4 ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ВОСПРОИЗВЕДЕНИЯ ВИДЕОИЗОБРАЖЕНИЙ, А ТАКЖЕ СПОСОБ ИЗГОТОВЛЕНИЯ УСТРОЙСТВА

Изобретение относится к способам и устройствам для воспроизведения видеоизображений. Техническим результатом является усовершенствование видеоустройства так, чтобы оно при более высокой световой мощности обеспечивало бы четкое отображение формируемых им видеоизображений независимо от расстояния между дефлектором и проекционным экраном соответственно независимо от формы последнего. Также техническим результатом является повышение плотности элементов изображений, обеспечивающей возможность воспроизведения высокочетких изображений. Это достигается тем, что источник выполнен с возможностью излучения двух модулируемых независимо друг от друга световых пучков, первый из которых промодулирован содержащейся в видеоизображении информацией для высвечивания первого, а второй из них промодулирован содержащейся в видеоизображении информацией для высвечивания второго элемента изображения. 2 с. и 13 з.п. ф-лы, 12 ил.

Способ и устройство развертывания изображения в передатчике для дальновидения

Способ передачи изображений на расстояние

Система пространственного углового сканирования

Устройство оптико-механической развертки факсимильного аппарата

Устройство записи информации

Datenaufzeichnungsvorrichtung mit einem optischen Sender

Projection system with array of rectangular micro-mirror elements for providing images at angles depending on mirror tilt angle in light ray steering system

A micro-mirror (24) is connected to a substrate (10) via a post (21), a hinge (18c), a post (16c) and metal areas (12a) and an array of the micro-mirrors is disposed in a rectangular shape with a capability of rotation around a switching axis between on and off states corresponding to pixels in a viewed image. Light is directed from a source to the mirrors non-perpendicularly to at least two sides of each mirror, while reflected light is received from collection optics. Independent claims are included for an array of movable micro-mirrors, for a method of positioning an image on a target, for a method of spatially modulating light beams, for an optical micro-mirror element, for a packaged micro-electromechanical device and for a method of making a micro-mirror.

Kleinbildwiedergabeeinrichtung.

Projection system with array of rectangular micro-mirror elements for providing images at angles depending on mirror tilt angle in light ray steering system

A micro-mirror (24) is connected to a substrate (10) via a post (21), a hinge (18c), a post (16c) and metal areas (12a) and an array of the micro-mirrors is disposed in a rectangular shape with a capability of rotation around a switching axis between on and off states corresponding to pixels in a viewed image. Light is directed from a source to the mirrors non-perpendicularly to at least two sides of each mirror, while reflected light is received from collection optics. Independent claims are included for an array of movable micro-mirrors, for a method of positioning an image on a target, for a method of spatially modulating light beams, for an optical micro-mirror element, for a packaged micro-electromechanical device and for a method of making a micro-mirror.

Projection system with array of rectangular micro-mirror elements for providing images at angles depending on mirror tilt angle in light ray steering system

A micro-mirror (24) is connected to a substrate (10) via a post (21), a hinge (18c), a post (16c) and metal areas (12a) and an array of the micro-mirrors is disposed in a rectangular shape with a capability of rotation around a switching axis between on and off states corresponding to pixels in a viewed image. Light is directed from a source to the mirrors non-perpendicularly to at least two sides of each mirror, while reflected light is received from collection optics. Independent claims are included for an array of movable micro-mirrors, for a method of positioning an image on a target, for a method of spatially modulating light beams, for an optical micro-mirror element, for a packaged micro-electromechanical device and for a method of making a micro-mirror.

OPTICAL SCANNER

MODULIERTE LICHTQUELLE UNTER VERWENDUNG EINES VCSEL-ARRAYS(VERTICAL CAVITY SURFACE EMITTING LASER) MIT EINER ELEKTROMECHANISCHEN GITTERVORRICHTUNG

Improvements in multiple assemblies of optical devices for television, telecinematography, picture telegraphy and the like

... 415,404. Television. BYRON, D. H., 9, Abbey Terrace, North Circular Road, West Twyford, London. Feb. 22, 1933, No. 5378. [Class 40 (iii).] Mirrors, lenses, apertures or the like are adjusted upon a drum or other carrier and then cemented in position. To this end they are mounted on carriers formed with cylindrical, spherical or spheroidal bearing-surfaces which fit upon a corresponding surface of the carrier. The mirror A, Fig. 1, can be adjusted by hand about the end of the card D, which acts temporarily as a fulcrum, and is meanwhile held in position by a spring C. It is then fixed by means of cement E keyed by grooves, and reinforced with filling G. In the arrangement shown in Fig. 2 the bearing-surfaces are spherical, and the carriers C, clamped in position by screws D, are cemented by means of a coat of paint. Each scanning-element may be associated with two carriers adjustable in two different directions.

OPTICAL SCANNER HAVING ADJUSTABLE REFLECTIVE ELEMENTS IN AN ARRAY

An optical scanner comprises a plurality of reflective elements 4 arranged side by side to form an array, each element being supported by arms 11-14, the arms and the reflective elements being micro-machined e.g. from silicon. There are a large number of elements in the direction of arrow B and the size of each element is comparable with the wavelength of coherent radiation incident on the scanner. The depth of the reflective elements 4 relative to the plane of the face of the scanner are adjustable e.g. by means of electrostatic attraction from electrodes 17 so that there is a progressive phase shift between an incident plane wavefront and the respective reflecting surfaces. Constructive interference then takes place at an angle to the original wavefront, enabling the beam to be steered. ...

Display System

... 1,179,633. Cathode ray display tubes. RANK ORGANIZATION Ltd. 29 March, 1968 [4 April, 1967], No. 15280/67. Heading H1D. [Also in Division H4] An image to be displayed is scanned by a plurality of photo-cells 10, Fig. 1 (not shown), arranged in a vertical line and the resulting electrical signals are fed to a matrix member of holes in a cathode ray tube 16, Fig. 3, of the type described in Specification 975,251, i.e. the output of each photo-cell is connected to the controlling wire of a hole in the matrix, so that a pattern of light spots is produced on the screen of the tube 16. A bundle of light fibres 18 connected to the screen of the cathode ray tube rearranges the pattern of light spots into a line of light spots corresponding to the line of photo-cells, and by means of a rotating mirror drum 19 the light spots at the ends of the fibres are reflected on to a screen in synchronism with the scanning of the line of photo-cells over the original image.

A television optical system for increasing the number of scanning strips obtained from a mirror drum for transmission or reception

... 428,459. Television. RICHARDSON, H. A., Darley House, Marlboro Road, Buxton, Derbyshire. Nov. 9, 1933, Nos. 31194/33, 766/34, and 7237/34. [Class 40 (iii)] In a scanning system, a beam of light is traversed across a series of reflecting concave or convex surfaces or refracting surfaces to produce a series of scanning lines which are correctly located on the screen by individual reflectors or refractors. A mirror drum MD, (Fig. 1, Prov. Spec. 766 /34), traverses a beam of light over lenses L1 .... L8 and plane mirrors M1 ... M8 correctly locate the strips on the screen SC. The mirror drum MD has its mirrors inclined at different angles, so that the total number of scanning strips produced is the number of lenses L1 ... L8 multiplied by the number of mirrors on the drum. The mirrors M, MC may be dispensed with, (Fig. 7, Prov. Spec. 7237/34 and Figs. 1, 2, Prov. Spec. 31194/33, not shown), or replaced by a concave mirror behind the drum MD, (Fig. 10, Prov. Spec. 7237/34, not shown). Synchronizing ...

Improvements in or relating to mirror carriers for use in television, phototelegraphic, telecinematographic and like systems

... 387,881. Television &c. JACOMB' W. W. and BAIRD TELEVISION, Ltd.' 133, Long Acre, London. April 29, 1932' No. 12385. [Class 40 (iii).] A mirror wheel for television &c. comprising a rotatable body 1, as shown in the Figure, of metal, hard rubber, fibre composition &c., has the mirrors 6 directly attached to it by screws 8 normal to the mirrors. The screws 8 may be replaced by other positive fastenings such as nuts and bolts or rivets. The screws preferably pass through the centre of mass of the mirror ; when two screws are used, a line joining their axes cuts the radius vector to the centre of mass of the mirror, while when more than two screws are used, the centre of mass of the mirror lies within the polygon at whose vertices are the screws. Washers may be placed between the mirrors and the screws to distribute the pressure of the screws. The mirrors may extend axially beyond the body 1 which may have holes cut in it to reduce its mass, Fig. 2 (not shown) and may be tapered towards its ...

LINE SCANNERS

Line scanners which employ a rotating reflective polygon 32 to sweep an image of a viewed scene 31 across one or more detector 33 suffer from image distortion towards the edges of the field of view. This problem may be mitigated by arranging firstly that the signal output by the detector be sampled, instant by instant, each sample representing a digitized dot-like portion of the viewed scene, and secondly that the sampling be at such a rate as exactly counteracts the linear distortion, so that as the linear distance on the ground increases - as the angular spacing of the instantly viewed area from some central datum line increases - so the sampling rate increases in correspondence (and thus the number of dot-like portions increases to match the greater extent of the scene). In addition the output of the line scanner may be stabilised against lateral angular movement (roll) of the scanner by sampling each line for a time that is shorter than the time needed to scan the maximum field of view ...

OPTICAL SYSTEM FOR PRODUCING A TWO DIMENSIONAL DISPLAY

OPTICAL SCANNING SYSTEM

Improvements in television apparatus

... 465,970. Television. TRAUB, E. Dec. 16, 1935, No. 34848. [Class 40 (iii)] In scanning devices of the kind comprising both stationary and rotating scanning members which receive the light beam in succession, the stationary member is so mounted that it is rotationally adjustable about the axis of the rotating member, to enable correct framing to be effected. The Figure shows apparatus of the kind described in Specification 425,552, modified in accordance with the invention by so mounting a ring 10 carrying on a bracket 9 a system of fixed mirrors 3 that it is rotationally adjustable about the axis of the motor-driven mirror drum 1 ; adjustment is effected by means of a worm 11. In a modification, Fig. 2 (not shown), of apparatus of the kind described in Specification 448,238, each of the two components comprising a rotary mirror drum co-operating with a fixed mirror system is constructed similarly to the single scanning device shown in the Figure. Specifications 394,446, 412,026,419,120,429,690 ...

Improvements in and relating to methods of and apparatus for scanning in television systems

... 503,327. Television scanning methods. CLOTHIER, S. L., and HOGENCAMP, H. C. Sept. 29, 1937, No. 26340. Convention date, Oct. 6, 1936. [Class 40 (iii)] In a method of secret television scanning is done in parallel irregular lines. The transmitter, Fig. 5, incorporates a slot 32 of irregular configuration in an aperture plate 15<1> through which a beam is passed from a line scanner 37. The lines scanned are therefore of configuration corresponding to slot 32. A mirror disc 21 causes images of the lines to pass across a transverse straight slot 20 so dividing them into elemental areas. At the receiver, Fig. 6, a plate 15<1> with a slot 32, of configuration identical with that at the transmitter, is traversed, by means of a mirror disc 21, by a band of light from a straight slot 20. An image of slot 32 is made to pass down the viewing screen S by a mirror drum 39. The irregularity of the scanning lines may be varied continuously by arranging at the transmitter for the slot 32 to be moved longitudinally ...

LASER SCANNING SYSTEM INCLUDING ROTATING REFLECTOR

... 1281405 Optical scanning COLUMBIA BROADCASTING SYSTEM Inc 10 June 1969 [19 June 1968] 29207/69 Heading G1A [Also in Divisions G2 and H4] A truncated pyramidal multi-faceted mirror 24 is rotatable about an axis 32 and is interposed between a lens 22 lying off the axis 32 and the point on axis 32 where the lens would otherwise bring the expanded beam from a laser 12 to a focal point, so that a scanning focal point 28, preferably diffraction limited in size, is caused to scan a cylindrical surface 30 disposed coaxially about axis 32, a plurality of the facets 26 of mirror 24 being simultaneously irradiated by laser light over their entire extent. To store information, a modulator 14 between the laser 12 and the beam expander 18 controls light to be passed to a film strip 30. For information retrieval, modulator 14 is omitted and a light sensor collects radiation traversing a storage medium 30.

Improvements in or relating to television apparatus and the like

... 322,481. Baird, J. L., and Television, Ltd. June 6, 1928. Drawings to Specification. Television.-The apertures in a scanning disc, instead of being circular or square, are either longer or shorter in the direction of motion than in the direction at right-angles thereto. Specification 312,406 is referred to.

Improvements in or relating to television and like apparatus

... 348,638. Television. BAIRD, J. L. and TELEVISION, Ltd., 133, Long Acre, London. Feb. 7, 1930, Nos. 4225/30 and 11353/31. Divided on 348,638. [Class 40 (iii).] Relates to systems in which the picture is scanned in bands which are narrower at some parts of the picture than at others. The widths of the bands may be progressively changed. A mirror drum 10, Fig. 2, has a series of plane mirrors of which at least one mirror 12, replacing a normally positioned mirror at 22 scanning a band 24, has its inclination altered to scan a wider band 26 and is displaced to a position 28 so that the band 26 is positioned at substantially the position of the band 24. Alternatively, the mirrors scanning the wider bands may be curved mirrors, so that divergent beams of light are produced. If all the mirrors are curved, some may have a greater curvature than others. At the transmitter where plane mirrors are used the mirrors may be canted so as to scan in substantially equal separated bands so that the mean ...

Improvements in and relating to systems of picture transmission

... 358,050. Television. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Moore, D. M. ; 592, Park Avenue, East Orange, New Jersey, U.S.A.) July 2, 1930, No. 20089. Convention date, July 9, 1929. [Class 40 (iii).] A scanning device comprises a rotatable mirror and means for varying the angular relation between its surface and its rotational axis. The mirror 12, as shown in the Figure, is mounted on a disc rotated by a motor 14, and a threaded bearing 16 co-operates with a gear 17 mounted on an arm 18 rotating with the mirror. The disc is connected by an eccentrically mounted rod 19 to the gear 17 so that its inclination to the rotational axis 15 is varied during rotation. Light from a fluctuating source 11 (or a Kerr cell) is reflected by the mirror and traces a spiral path on the screen 13. Two such sources 11 may be used to trace simultaneously two neighbouring spirals. The Specification as open to inspection under Sect. 91 (3) (a) also describes a scanning device ...

Improvements in and relating to optical apparatus for use in the transmission of views by electricity

... 410,966. Television. PAPST, H., St. Georgen, Schwarzwald, Germany. May 2, 1933, No. 12806. Convention date, May 2, 1932. [Class 40 (iii).] In scanning apparatus comprising two mirror wheels 10, 19 rotatable about axes substantially at right angles, a reflecting mirror or prism 24 is interposed between the mirror wheels, of which one is mounted directly on the driving shaft and the other is driven through a singlethreaded worm and worm-wheel. The shafts 1, 18 of the fast and slow wheels, 10, 19 respectively, have pointed ends and the bearings 7, 20 are held by springs 9, 22 to counterbalance the axial thrust during the rotation of the wheels. A spring 23 is mounted on the shaft 18 to take up back lash in the worm gearing. The mirror wheels are similarly and adjustably mounted on their shafts, the mirror wheel 10 being carried on a disc 11 secured to the shaft 1 and held between a disc 13 provided with radial elastic arms 12 and a disc 14 adjustably secured to the disc 11 by screws 15. The ...

Improvements in or relating to television and like systems

... 351,972. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Cioffari, B. ; 88, Washington Avenue, New Rochelle, Westchester, New York, U.S.A.) April 1, 1930, No. 10391. Convention date, April 1, 1929. [Class 40 (iii).] In television a scanning method comprises deflecting a light beam along a plurality of spaced paths and successively controlling the beams to trace a plurality of additional paths interspersed between the first spaced paths. A mirror disc 11, Fig. 2. deflects a beam of light from a source 18 along a plurality of paths in accordance with the number and tilting of the mirrors 1, 2, 3, &c. Each mirror deflects a beam across a member 10 consisting of a plurality of mirrors 12, 13, 14, &c., each inclined to its neighbours vertically as well as horizontally. As the first beam from mirror 1 passes across mirror 16 the screen 17 is scanned from d<1> to c<1>. When the beam passes across mirror 15, the screen 17 is again scanned along its ...

Improvements in or relating to scanning apparatus for use in television and like systems

... 374,564. Television. BAIRD, J. L. and BAIRD TELEVISION, Ltd., 133, Long Acre, London. April 9, 1931, No. 10487. [Class 40 (iii).] A scanning device comprises a plurality of fixed reflectors 8, 9, 10, Fig. 1, and a cooperating rotating reflector 5 whose surface is inclined to the axis of rotation 6. The reflector 5 may be replaced by a plurality of reflectors, each equally inclined to its neighbours and the axis of rotation. Light from a source 1 is directed to the rotating reflector 5 and moves across reflectors 8, 9, 10, to trace adjacent contiguous, discontiguous or overlapping lines on the screen 11. Further fixed reflectors may be placed round the shaft 6 so that the screen is scanned in overlapping or adjacent areas in horizontal and vertical lines and in opposite senses. Reflectors 12 .. 19, Fig. 2, may be used to give radial scanning lines EDC. In this case the translucency of the screen 11 may vary to compensate for uneven illumination or the coefficient of reflection may vary across ...

Improvements in or relating to television and like systems and apparatus therefor

... 441,410. Television. WILSON, J. C., 24, Whitworth Park Mansions, Moss Lane East, Manchester, and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. July 26, 1934, No. 21827. [Class 40 (iii)] Television scanning apparatus for producing traversal of the type in which successively scanned strips are arranged in regular lateral progression from one edge of the traversed field to an opposite edge comprises a frusto-conical drum 12 having mirrors 2 arranged on the peripheral surface thereof to form a plurality of convolutions of a continuous spiro-helical track. Light from the scanning aperture 7 is projected by a lens 8 on to a facet of a polyhedral reflector 13 by which it is continuously directed to impinge on the mirrors of each convolution in turn on the drum 12. The lens 8 may form an image of the element 7 at the surface of the polyhedron 13 provided an additional lens is inserted at some convenient place in the remaining optical path to the screen 9 in order to bring into focus ...

OPTICAL SCANNER.

SMALL REPRODUCTION OF THE PICTURE MECHANISM.

MINIATURE VIDEO DISPLAY SYSTEM

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.

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.

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.

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.

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

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 ...

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.

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 ...

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 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 ...

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 ...

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 ...

COMPACT OPTICAL SYSTEM WITH MEMS SCANNERS FOR IMAGE GENERATION AND OBJECT TRACKING

An optical system that deploys micro electro mechanical system (MEMS) scanners to contemporaneously generate CG images and to scan a terrain of a real-world environment. An illumination engine emits a first spectral bandwidth and a second spectral bandwidth into an optical assembly along a common optical path. The optical assembly then separates the spectral bandwidth by directing the first spectral bandwidth onto an image-generation optical path and the second spectral bandwidth onto a terrain-mapping optical path. The optical system deploys the MEMS scanners to generate CG images by directing the first spectral bandwidth within the image-generation optical path and also to irradiate a terrain by directing the second spectral bandwidth within the terrain-mapping optical path. Accordingly, the disclosed system provides substantial reductions in both weight and cost for systems such as, for example, augmented reality and virtual reality systems. 1. An optical system , comprising:at least one controller for modulating output signals corresponding to image data defining computer-generated (CG) images, the at least one controller configured for processing tracking data associated with a terrain-mapping protocol for identifying features of a terrain of a real-world environment surrounding the optical system;an illumination engine to generate electromagnetic (EM) radiation in response to the output signals, wherein the EM radiation includes a first spectral bandwidth for generating the CG images and a second spectral bandwidth for deploying the terrain-mapping protocol;an optical assembly for receiving the EM radiation from the illumination engine and to cause the first spectral bandwidth and the second spectral bandwidth to propagate along a common optical path, wherein the optical assembly directs the first spectral bandwidth from the common optical path onto an image-generation optical path to generate the CG images, and wherein the optical assembly directs the second ...

TECHNIQUES FOR SCANNED ILLUMINATION

Imaging systems are provided for high speed, high resolution imaging of biochemical materials. In an example embodiment, an imaging system comprises an objective lens component, a line generator, a digital camera, a positioning stage, and a scan mirror. The line generator generates a line of light that is scanned across a portion of a substrate that is mounted on the positioning stage. The positioning stage moves the substrate in a particular direction that is substantially normal to an optical axis of the objective lens component. The camera collects an image of the portion of the substrate through the objective lens component. The scan mirror moves in coordination with the positioning stage, while the line of light is being scanned across the portion of the substrate and the substrate is being moved in the particular direction, in order to keep the image still with respect to the camera while the image is being collected by the camera. 125.-. (canceled)26. A method of operating a digital camera comprising steps of:(a) scanning a thin strip of light across an object to expose row by row pixels in an image sensor of the digital camera; and(b) reading out the pixels row by row in rolling readout mode after exposure in step (a).27. The method of claim 26 , wherein reading out the pixels takes longer than scanning the thin strip of light across the object.28. The method of claim 27 , wherein the pixels are kept dark between exposure and reading out.29. The method of claim 26 , wherein the camera comprises a split-readout sensor having at least two sections claim 26 , and wherein steps (a) and (b) are performed independently in each section of the sensor.30. The method of claim 26 , wherein steps (a) and (b) in one section are performed in parallel to steps (a) and (b) in another section.31. The method of claim 26 , wherein steps (a) and (b) in one section are performed in anti-parallel to steps (a) and (b) in another section.32. The method of claim 26 , wherein the ...

Apparatus And Method For Compressive Imaging And Sensing Through Multiplexed Modulation Via Spinning Disks

Compressive imaging apparatus employing multiple modulators in various optical schemes to generate the modulation patterns before the signal is recorded at a detector. The compressive imaging apparatus is equally valid when applying compressive imaging to structured light embodiments where the placement is shifted from the acquisition path between the subject and the detector into the illumination path between the source and the subject to be imaged. 1. An imaging system comprising:a multilayered modulator for modulating an incident light field by a series of patterns, wherein said multilayered modulator comprises a plurality of disks, wherein each of said plurality of disks spins at a different speed;means for optically computing inner products between the light field and said series of patterns; and{'sub': 1', '0', '2, 'means for recovering a signal based upon said inner products and at least one of a Greedy reconstruction algorithm, Matching Pursuit, Orthogonal Matching Pursuit, Basis Pursuit, group testing, LASSO, LARS, expectation-maximization, Bayesian estimation algorithm, belief propagation, wavelet-structure exploiting algorithm, Sudocode reconstruction, reconstruction based on manifolds, lreconstruction, lreconstruction, and lreconstruction.'}2. An imaging system according to claim 1 , wherein said plurality of disks have a combined attenuation that results in 50% blocking of light at the means for optically computing inner products.3. An imaging system according to claim 1 , wherein said series of patterns are random or psuedorandom.4. An imaging system according to claim 1 , wherein said plurality of disks comprises first and second disks.5. An imaging system according to claim 4 , wherein an imaging plane in said first disk is aligned diagonally with said second disk.6. An imaging device according to claim 4 , wherein a spindle of said first disk is aligned with a spindle of said second disk.7. An imaging device according to claim 1 , wherein as least ...

DISPLAY APPARATUS CAPABLE OF PROJECTING DIFFERENT IMAGES ON DISPLAY AREAS

Disclosed is a display apparatus. The display apparatus includes a light source unit configured to output a visible light, a scanner configured to output a first projection image and a second projection image based on the visible light by implementing first direction scanning and second direction scanning, and a light path splitter configured to separate light paths of the first projection image and the second projection image from each other, so as to output the first projection image and the second projection image toward a first display area and a second display area respectively. The display apparatus is capable of projecting different images onto display areas. 1. An apparatus comprising:a light source configured to output visible light;a scanner positioned relative to the light source to receive the visible light, wherein the scanner is configured to output a first projection image and a second projection image based on the received visible light using respective first direction scanning and second direction scanning; anda light path splitter positioned relative to the scanner to receive the first projection image and the second projection image, wherein the light path splitter is configured to separate respective light paths of the first projection image and the second projection image from each other and output the first projection image toward a first display area and output the second projection image toward a second display area.2. The apparatus according to claim 1 , wherein the scanner outputs the first projection image and the second projection image during one frame section.3. The apparatus according to claim 1 , wherein the scanner varies an operating frame rate to increase spatial resolution of a scan area to which the first projection image and the second projection image are output claim 1 , andwherein the light path splitter outputs the first projection image and the second projection image, each of which has a relative increase in spatial ...

METHOD FOR CALIBRATING A PROJECTION DEVICE AND METHOD FOR OPERATING A PROJECTION DEVICE CALIBRATED IN THIS MANNER

A method for calibrating a projection device, the projection device being equipped with at least two controllable and regulatable light sources, which each transmit a beam component of a scanning beam. The calibration method includes defining a reference beam for the scanning beam; determining, in each instance, a dewarping function for the x-projector coordinate and for the y-projector coordinate of the reference beam, each dewarping function converting the specific projector coordinate to corresponding image coordinates, which are assigned to the image information; determining, in each instance, an offset function for the x-projector coordinate and the y-projector coordinate for all beam components, each offset function approximating the offset between the specific x- or y-image coordinate of the reference beam and the x- or y-image coordinate of the respective beam component. 18-. (canceled)9. A method for calibrating a projection device for displaying discretely stored image information with the aid of at least two controllable and regulatable light sources , which each transmit a beam component of a scanning beam , and using devices for focusing , aligning and moving the beam components , so that pixels corresponding to the light sources overlap as much as possible on a projection surface and may be moved in a predefined trajectory over the projection surface , the method comprising:a. defining a reference beam for the scanning beam;b. determining, in each instance, a dewarping function for an x-projector coordinate and for a y-projector coordinate of the reference beam, each dewarping function converting the respective projector coordinate to corresponding image coordinates, which are assigned to the image information;c. determining, in each instance, an offset function for the x-projector coordinate and the y-projector coordinate for all beam components, each offset function approximating an offset between the respective x- or y-image coordinate of the ...

PROJECTION APPARATUS

Provided is a projection apparatus that can enhance the efficiency of utilization of RGB laser lights, eliminate positional displacement in projection point caused by spaced-apart fiber cores emitting the laser lights, and detect additional information while projecting an image with the laser lights. The projection apparatus includes a laser light source emitting infrared and RGB laser lights, a fixing device fixing end portions of an infrared-light fiber and colored-light fibers used to transmit the infrared and RGB laser lights, a scanning unit projecting an image on a projection surface by scanning the projection surface with the RGB laser lights emitted from the end portions of the colored-light fibers, a detection unit detecting reflection of the infrared laser light emitted from the end portion of the infrared-light fiber, and a control unit controlling emission of the RGB laser lights from the light source, based on information detected by the detection unit.

OPTICAL SCANNER, IMAGE DISPLAY DEVICE, AND HEAD MOUNTED DISPLAY

An optical scanner includes a movable section, shaft sections configured to support the movable section to be capable of swinging, a supporting section configured to support the shaft sections, a holding section joined to the upper surface of the movable section, a light reflecting section provided in the holding section, a wire provided on the lower surface of the supporting section, and a projecting section provided on the lower surface of the movable section. The supporting section, the movable section, and the shaft sections are formed from the same substrate. 1. An optical scanner comprising:a movable section;a shaft section configured to support the movable section to be capable of swinging around a swing axis;a supporting section configured to support the shaft section;a holding section joined to one surface of the movable section;a light reflecting section provided in the holding section and having light reflectivity;a wire provided on a surface side opposite to a surface of the supporting section on which the holding section is provided; anda projecting section provided on a surface opposite to the surface of the movable section on which the holding section is provided, whereinthe supporting section, the movable section, and the shaft section are formed from a same substrate.2. The optical scanner according to claim 1 , wherein a surface on an opposite side of a surface of the projecting section joined to the substrate and a surface on an opposite side of a surface of the wire joined to the substrate are located flush with each other.3. The optical scanner according to claim 1 , wherein claim 1 , in a plan view of the substrate claim 1 , a surface on an opposite side of a surface of the projecting section joined to the substrate is located in a position apart from the substrate compared with a surface on an opposite side of a surface of the wire joined to the substrate.4. The optical scanner according to claim 3 , wherein a clearance in a thickness ...

IMAGE-PROJECTION MODULE

The invention discloses an image-projection module, which includes a light source assembly, a light polarization switching element, and a light-path switching assembly. The light source assembly generates a laser light beam. The light polarization switching element is configured to make the laser light beam passing therethrough to selectively have a first polarizing direction or a second polarizing direction. The light-path switching assembly receives the laser light beam passing through the light polarization switching element and determines a projection direction of the laser light beam according to the polarizing direction of the laser light beam. 1. An image-projection module , comprising:a light source assembly, configured to emit a laser light beam;a light polarization switching element, configured to enable the laser light beam passing therethrough to selectively have a first polarizing direction or a second polarizing direction; anda light-path switching unit, configured to receive the laser light beam from the light polarization switching element and determine a projection path of the laser light beam according to the polarizing direction of the laser light beam.2. The image-projection module as claimed in claim 1 , wherein when the laser light beam is in the first polarizing direction claim 1 , the laser light beam impinging the light-path switching unit has a first projection path claim 1 , and when the laser light beam is in the second polarizing direction claim 1 , the laser light beam impinging the light-path switching unit has a second projection path.3. The image-projection module as claimed in claim 1 , further comprising a control assembly claim 1 , configured to control the light polarization switching element at a switching frequency and enable the laser light beam passing through the light polarization switching element to have the first polarizing direction or the second polarizing direction alternately according to the switching frequency ...

ACTUATOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS

An actuator including a movable portion that swings about a swing axis, a connecting portion that extends from the movable portion and torsionally deforms in response to the swinging of the movable portion, and a support portion that supports the connecting portion, wherein the movable portion is so shaped that the length thereof parallel to the swing axis decreases stepwise with distance from the swing axis in a plan view, and the movable portion, the support portion, and the connecting portion are formed by anisotropically etching a silicon substrate. 1. An actuator comprising:a movable portion that swings about a swing axis;a connecting portion that extends from the movable portion and torsionally deforms in response to the swinging of the movable portion; anda support portion that supports the connecting portion,wherein the movable portion is so shaped that the length thereof parallel to the swing axis decreases stepwise with distance from the swing axis in a plan view.2. The actuator according to claim 1 ,wherein the length of the movable portion parallel to the swing axis decreases in two steps with distance from the swing axis in the plan view.3. The actuator according to claim 1 ,wherein the movable portion has an outer shape in the plan view that is formed primarily of a line segment parallel to the swing axis and a line segment perpendicular to the swing axis.4. The actuator according to claim 1 ,wherein each plate surface of the movable portion is formed of a silicon (100) surface.5. The actuator according to claim 1 ,wherein a side surface of the movable portion is primarily formed of a silicon (111) surface.6. The actuator according to claim 5 ,wherein a groove having a V-like shape in a cross-sectional view taken along a plane perpendicular to plate surfaces of the movable portion is formed in the side surface of the movable portion.7. The actuator according to claim 1 ,wherein surfaces of the connecting portion are formed of a silicon (100) surface ...

OPTICAL SCANNING HEAD-MOUNTED DISPLAY AND RETINAL SCANNING HEAD-MOUNTED DISPLAY

An optical scanning head-mounted display includes an optical scanning controller that emits, as image light, a laser beam in accordance with an image signal; a transmission cable that transmits the image light emitted from the optical scanning controller; and a head mount unit provided with an optical scanner including a mirror for scanning the image light transmitted by the transmission cable, wherein the head mount unit includes an amplifier that amplifies a motion signal corresponding to a tilt of the mirror, the motion signal being output from the optical scanner, and wherein the optical scanning controller includes a difference generator that generates a difference signal from the motion signal output from the amplifier through the transmission cable and a filter that removes noise from the difference signal generated by the difference generator. 1. An optical scanning head-mounted display comprising:an optical scanning controller that emits, as image light, a laser beam in accordance with an image signal;a transmission cable that transmits the image light emitted from the optical scanning controller; anda head mount unit provided with an optical scanner including a mirror for scanning the image light transmitted by the transmission cable,wherein the head mount unit includes an amplifier that amplifies a motion signal corresponding to a tilt of the mirror, the motion signal being output from the optical scanner, andwherein the optical scanning controller includes a difference generator that generates a difference signal from the motion signal output from the amplifier through the transmission cable and a filter that removes noise from the difference signal generated by the difference generator.2. The optical scanning head-mounted display according to claim 1 , wherein the optical scanning controller includes a horizontal displacement sensor and a vertical displacement sensor claim 1 ,wherein the horizontal displacement sensor detects a displacement of the ...

Optical scanning head-mounted display and retinal scanning head-mounted display

An optical scanning head-mounted display includes a head mount unit including a light source that emits a light beam, an optical scanner that scans the light beam to irradiate the light beam onto a projection plane, an image capturing device that outputs image data of a captured image as the image data in a first format, and an interface that converts the image data in the first format obtained from the image capturing device into the image data in a second format and outputs the image data in the second format; a transmission cable that transmits the image data in the second format; and a controller that receives the image data in the second format through the transmission cable and controls the emission of the light beam from the light source based on the image data in the second format.

System and Method for a Three-Dimensional Optical Switch Display (OSD) Device

The present invention includes a system, apparatus and method for generating a three-dimensional image, the system comprising: a medium comprising a optical molecular switch molecule, wherein the optical molecular switch molecule has a non-fluorescent state and a fluorescent state, wherein at one wavelength of optical excitation the molecule has a first state, and at a second state the molecule fluoresces a second wavelength of excitation; and at least a first light source and a second light source into the medium, wherein light emitted by the at least first and second light sources are directed to contact the optical molecular switch molecule, e.g., scanning, weaving, diagonally or other pattern; wherein the optical molecular switch molecule is converted into a fluorescent “on state” by irradiation from the first light source, and the second light causes the optical molecular switch to emit light. 1. An apparatus for generating a three-dimensional image , the system comprising:a medium comprising an optical molecular switch molecule, wherein the optical molecular switch molecule has a non-fluorescent state and a fluorescent state, wherein at one wavelength of optical excitation the molecule has a first state, and at a second state the optical molecular switch molecule fluoresces at a second wavelength of excitation; andat least a first light source and a second light source into the medium, wherein light emitted by the at least first and second light sources are directed to contact the optical molecular switch molecule;wherein the optical molecular switch molecule is converted into a fluorescent “on state” by irradiation from the first light source, and when the second light source irradiates the optical molecular switch molecule in the “on state” the optical molecular switch molecule emits light.2. The apparatus of claim 1 , wherein at least one of:(a) the first and the second light source intersect the optical molecular switch molecule excites and releases light ...

DUAL-APERTURE ZOOM DIGITAL CAMERA WITH AUTOMATIC ADJUSTABLE TELE FIELD OF VIEW

Digital camera comprising an upright Wide camera configured to provide a Wide image with a Wide image resolution and a folded Tele camera configured to provide a Tele image with a Tele image resolution higher than the Wide image resolution, the Wide and Tele cameras having respective Wide and Tele fields of view FOVand FOVand respective Wide and Tele image sensors, the digital camera further comprising a rotating OPFE operative to provide a folded optical path between an object or scene and the Tele image sensor, wherein rotation of the OPFE moves FOVrelative to FOV. In some embodiments, a rectangular FOVis orthogonal to a rectangular FOV. When included in a host device having a user interface that displays FOVwithin FOV, the user interface may be used to position FOVrelative to FOV, scan FOVacross FOVand acquire, store and display separate Wide and Tele images, composite Wide plus Tele images and stitched Tele images. The positioning of FOVwithin FOV, can be done automatically (autonomously) by continuously tracking an object of interest. 1. A method for obtaining a high-resolution image using a dual-aperture camera comprising a Wide camera that provides a Wide image with a Wide resolution and a Wide field of view (FOV) , and a folded Tele camera that provides plurality of Tele images with a Tele resolution higher than the Wide camera resolution and with a Tele field of view (FOV) smaller than the FOV , wherein the Wide camera includes a Wide lens with a Wide lens optical axis and a Wide image sensor with a width Wand a height H , wherein the Tele camera includes a Tele image sensor with a width Wand a height H , wherein W>Hand wherein W>H , the method comprising:{'sub': T', 'W', 'T, 'a) positioning Hin parallel with the Wide lens optical axis and Worthogonally to H;'}{'sub': T', 'W, 'b) obtaining a first Tele image with the FOVat a first position within the FOV;'}{'sub': T', 'W', 'T', 'W, 'c) moving the FOVrelative to FOVto obtain a second Tele image with the ...

DUAL-APERTURE ZOOM DIGITAL CAMERA WITH AUTOMATIC ADJUSTABLE TELE FIELD OF VIEW

Digital camera comprising an upright Wide camera configured to provide a Wide image with a Wide image resolution and a folded Tele camera configured to provide a Tele image with a Tele image resolution higher than the Wide image resolution, the Wide and Tele cameras having respective Wide and Tele fields of view FOVand FOVand respective Wide and Tele image sensors, the digital camera further comprising a rotating OPFE operative to provide a folded optical path between an object or scene and the Tele image sensor, wherein rotation of the OPFE moves FOVrelative to FOV. In some embodiments, a rectangular FOVis orthogonal to a rectangular FOV. When included in a host device having a user interface that displays FOVwithin FOV, the user interface may be used to position FOVrelative to FOV, scan FOVacross FOVand acquire, store and display separate Wide and Tele images, composite Wide plus Tele images and stitched Tele images. The positioning of FOVwithin FOV, can be done automatically (autonomously) by continuously tracking an object of interest. 1. A digital camera comprising:{'sub': 'W', 'a) an upright Wide camera configured to provide a Wide image with a Wide image resolution, the Wide camera comprising a Wide image sensor and a Wide lens with a Wide field of view (FOV);'}{'sub': 'T', 'b) a folded Tele camera configured to provide a Tele image with a Tele image resolution higher than the Wide image resolution, the Tele camera comprising a Tele image sensor and a Tele lens with a Tele field of view (FOV); and'}{'sub': T', 'W, 'c) a rotating optical path folding element (OPFE) operative to provide a folded optical path between an object or scene and the Tele image sensor, wherein rotation of the OPFE provides a movement of FOVrelative to FOV.'}2. The digital camera of claim 1 , wherein the Wide and Tele image sensors have each a substantially rectangular shape defined by a respective height dimension and a respective width dimension and wherein the Wide and Tele image ...

Laser diode priming to reduce latency

A modulated light source comprises a laser diode and a drive circuit coupled operatively to the laser diode. The laser diode is configured to lase upon passing an above-threshold current for an accumulation period. The drive circuit is configured to draw a priming current through the laser diode over a priming period, the priming current being insufficient to cause the laser diode to lase during the priming period, but sufficient to shorten the accumulation period. The drive circuit is further configured to draw the above-threshold current through the laser diode after the priming period, thereby triggering emission from the laser diode following a shortened accumulation period.

Mems scanner

The present invention relates to a micro electro mechanical systems (MEMS) scanner, and more particularly, to an MEMS scanner for implementing stable driving while increasing a driving angle between a fixed electrode and a driving electrode using an MEMS process. The MEMs scanner comprises a lower frame, a pair of upper frames, a pair of levers, a pair of fixed electrode portions, and a driving electrode portion.

Oscillation device, scanning-type scanner device, information terminal, phase-shift amount adjustment device, and phase-shift amount adjustment method

An oscillation device includes an oscillator, an oscillation detection unit that detects oscillation of the oscillator and outputs an oscillation detection signal, and a drive unit that generates a drive signal in keeping with the oscillation detection signal and outputs the drive signal to the oscillator. The drive unit includes a phase shift unit that shifts the phase to provide the drive signal as positive feedback to the oscillator. The phase shift unit includes a disturbance generating unit that outputs the periodic signal, a fluctuation unit that causes the amount of phase shift to fluctuate based on the periodic signal, a drive amplitude detection unit that detects the amplitude of the drive signal and outputs a drive amplitude signal, a product detection unit that outputs a detection signal after performing product detection on the drive amplitude signal based on the periodic signal, and an adjustment unit that adjusts the phase-shift amount based on the detection signal.

SCANNING-TYPE PROJECTION DEVICE

A scanning-type projection device is provided with an emitted-light-intensity control unit for controlling the light intensity of a laser light emitted by a laser light source unit, a polarization direction control unit for controlling the polarization direction of the laser light, a scanning unit for scanning the laser light and generating a display image, and a divergence unit on which the laser light scanned by the scanning unit is incident. The emitted-light-intensity control unit has a polarization control element for controlling the polarization state of the laser light, and a polarizing plate on which the laser light emitted from the polarization control element is incident, and the polarization direction control unit adjusts the polarization direction of display light incident on a projection surface by controlling the polarization direction of the laser light emitted by the emitted-light-intensity control unit. 1. A scanning-type projection device , which emits a display light to a projection surface and projects a display image expressed by the display light as a virtual image on the projection surface when the display light is reflected in the projection surface , the scanning-type projection device comprising:a laser light source that emits a laser light;an emitted-light-intensity control unit that is located on the optical path of the laser light which is emitted from the laser light source, and that controls light intensity of the laser light which is emitted from the laser light source;a polarization direction control unit that is located on the optical path of the laser light which is emitted from the laser light source, and that controls a polarization direction of the laser light which is emitted from the laser light source;a scanning unit that scans the laser light which is emitted from the laser light source, and that generates the display image; anda divergence unit to which the laser light scanned by the scanning unit is incident,wherein the ...

PROJECTOR, PROJECTOR CONTROL METHOD, AND PROJECTOR CONTROL PROGRAM

A projector () of the present invention includes: a light source () configured to generate light; an optical system () configured to reflect the light from the light source () and guide the light to a two-dimensional scanning mirror (); the two-dimensional scanning mirror () configured to project the light guided by the optical system () on a screen; and a driving mechanism () configured to drive the optical system () at a predetermined period and a predetermined amplitude, and reduces speckle noise with a simple configuration. 1. A projector comprising:a light source configured to generate light;an optical system configured to reflect the light from the light source and guide the light to a two-dimensional scanning mirror;the two-dimensional scanning mirror configured to project the light guided by the optical system on a screen; anda driving mechanism configured to drive the optical system at a predetermined period and a predetermined amplitude.2. The projector according to claim 1 , wherein the driving mechanism drives the optical system in a predetermined direction.3. The projector according to claim 2 , wherein the driving mechanism further drives the optical system in a direction at a predetermined angle to the predetermined direction.4. The projector according to claim 3 , wherein the direction at a predetermined angle is a direction vertical to the predetermined direction.5. The projector according to claim 1 , wherein the optical system includes at least two mirrors.6. The projector according to claim 5 , wherein the driving mechanism provided in at least one of the at least two mirrors.7. The projector according to claim 5 , wherein the at least two mirrors include at least one of a dichroic mirror and a fold mirror.8. The projector according to claim 1 , wherein the light source includes a laser diode.9. The projector according to claim 1 , wherein the two-dimensional scanning mirror is configured to include two one-dimensional scanning mirrors.10. A ...

Systems, Devices, and Methods for Calibrating A Light Field Projection System

The present disclosure relates to systems, devices, and methods for calibrating a light field projection system. One example system includes a projection unit operable to project a scanning sequence toward a screen having convex reflective elements. The scanning sequence is modulated according to a baseline intensity profile. The system also includes a calibration device disposed such that a portion of the scanning sequence is intercepted by the calibration device. The calibration device includes a first light detector arranged to detect an intercepted intensity profile. The calibration device also includes a second light detector arranged to detect a reflected portion of the scanning sequence as a measured intensity profile. The system further includes a control system. The control system is configured to determine an expected intensity profile and to modify operation of the light field projection system based on a comparison of the measured intensity profile to the expected intensity profile. 1. A system comprising:a projection unit operable to project a scanning sequence toward a screen having a plurality of convex reflective elements, wherein the projected scanning sequence is modulated according to a baseline intensity profile;a calibration device disposed between the projection unit and the screen such that a portion of the scanning sequence is intercepted by the calibration device before reaching the screen, wherein the calibration device comprises: (a) a first light detector arranged to detect the intercepted portion of the scanning sequence as an intercepted intensity profile, and (b) a second light detector arranged to detect a reflected portion of the scanning sequence that is reflected from the screen as a measured intensity profile; anda control system configured to:(a) determine, based on the baseline intensity profile and the intercepted intensity profile, an expected intensity profile corresponding to the second light detector; and(b) modify ...

LASER PROJECTION/DISPLAY APPARATUS

A laser projection/display apparatus includes a photosensor for detecting light amounts of laser lights, and an image processing unit that processes an image signal based on the detected light amounts, and supplies the image signal to a laser light source drive unit. The image processing unit obtains data for making the light amounts of the laser lights, which are detected by the photosensor, equal to respective values at a second luminance that is different from a first luminance, which is the luminance of the image currently being displayed, during a flyback period of the image signal. The image processing unit processes an image signal to be supplied to the laser light source drive unit based on the data when the image signal is projected and displayed with the second luminance. 1. A laser projection/display apparatus for displaying an image corresponding to an image signal by projecting laser lights of a plurality of colors corresponding to the image signal , comprising:a laser light source that emits the laser lights of the colors;a laser light source drive unit that drives the laser light source so that the laser light source emits laser lights corresponding to the image signal;a scanning unit that scans the laser lights emitted by the laser light source in accordance with a sync signal related to the image signal;a photosensor that detects the light amounts of the laser lights emitted by the laser light source; andan image processing unit that processes the image signal in accordance with the light amounts of the laser lights detected by the photosensor, and supplies the processed image signal to the laser light source drive unit,wherein the image processing unit obtains data used for making the light amounts of the laser lights, which are detected by the photosensor, equal to respective predefined values regarding a plurality of luminance levels during the flyback period of the image signal, and the image processing unit processes the image signal to be ...

DISPLAY ALIGNMENT TRACKING IN DISPLAY SYSTEMS

Devices, systems, and methods corresponding to addressing misalignment in display systems are provided. A method includes using a first microelectromechanical system (MEMS) mirror, directing a first signal from a first light source to an alignment tracking waveguide. The method further includes receiving by a first photosensor a first portion of the first signal via the alignment tracking waveguide and determining a first alignment indicator associated with the first portion of the first signal. The method further includes using a second MEMS mirror, directing a second signal from a second light source to the alignment tracking waveguide. The method further includes receiving by a second photosensor a second portion of the second signal via the alignment tracking waveguide and determining a second alignment indicator associated with the second portion of the second signal. 1. A method in a device comprising a controller , a first light source , and a second light source , the method comprising:using a first microelectromechanical system (MEMS) mirror, directing a first signal from the first light source to an alignment tracking waveguide;receiving by a first photosensor a first portion of the first signal via the alignment tracking waveguide and using the controller determining a first alignment indicator associated with the first portion of the first signal;using a second MEMS mirror, directing a second signal from the second light source to the alignment tracking waveguide; andreceiving by a second photosensor a second portion of the second signal via the alignment tracking waveguide and using the controller determining a second alignment indicator associated with the second portion of the second signal.2. The method of claim 1 , wherein the first alignment indicator is determined based on a first angle of incidence of the first portion of the first signal on a first surface associated with the first photosensor claim 1 , and wherein the second alignment indicator ...

PROJECTOR WITH MULTIPLE SPATIAL LIGHT MODULATORS PRISMS AND LIGHT SOURCES

Described examples include a projector including a first prism having a dichroic layer. A second prism has a first spatial light modulator on a first surface, and a first light source directed through a second surface of the second prism to the first spatial light modulator. The first spatial light modulator is operable to modulate the first light to provide modulated first light that is reflected off the second surface of the second prism and the dichroic layer to projection optics. A third prism has a second spatial light modulator on a first surface and a second light source directed through a second surface to the second spatial light modulator. The second spatial light modulator is operable to modulate the second light to provide modulated second light that is reflected off the second surface of the third prism and passes through the dichroic layer to the projection optics. 1. A projector comprising:a first prism having a dichroic layer to reflect light having a first color;a second prism having a first spatial light modulator on a first surface of the second prism;a first light source to provide a first light having the first color directed through a second surface of the second prism to the first spatial light modulator, the first spatial light modulator operable to modulate the first light to provide modulated first light that is reflected off the second surface of the second prism and the dichroic layer of the first prism to projection optics;a third prism having a second spatial light modulator on a first surface of the third prism; anda second light source to provide a second light of a second color directed through a second surface of the third prism to the second spatial light modulator, the second spatial light modulator operable to modulate the second light to provide modulated second light that is reflected off the second surface of the third prism and passes through the dichroic layer of the first prism to the projection optics.2. The projector of ...

COMPACT OPTICAL SYSTEM WITH MEMS SCANNERS FOR IMAGE GENERATION AND OBJECT TRACKING

An optical system that deploys micro electro mechanical system (MEMS) scanners to contemporaneously generate CG images and to scan a terrain of a real-world environment. An illumination engine emits a first spectral bandwidth and a second spectral bandwidth into an optical assembly along a common optical path. The optical assembly then separates the spectral bandwidth by directing the first spectral bandwidth onto an image-generation optical path and the second spectral bandwidth onto a terrain-mapping optical path. The optical system deploys the MEMS scanners to generate CG images by directing the first spectral bandwidth within the image-generation optical path and also to irradiate a terrain by directing the second spectral bandwidth within the terrain-mapping optical path. Accordingly, the disclosed system provides substantial reductions in both weight and cost for systems such as, for example, augmented reality and virtual reality systems. 1. An optical system , comprising:at least one illumination engine to generate electromagnetic (EM) radiation in response to output signals that are generated by a controller, wherein the EM radiation includes a first bandwidth for rendering Computer-Generated (CG) images and a second bandwidth for implementing an object tracking protocol;an optical assembly to direct the first bandwidth onto an image-generation optical path to generate the CG images and to concurrently direct the second bandwidth onto an object-tracking optical path to irradiate at least one object within a real-world environment; anda sensor for receiving a reflected-portion of the second bandwidth that is reflected from the at least one object, the sensor generating object data based on the reflected-portion of the second bandwidth, the object data indicating the characteristics of the at least one object.2. The optical system of claim 1 , further comprising at least one controller that is configured to:receive image data defining the computer-generated ( ...

Single-pixel camera architecture with simultaneous multi-band acquisition

A system is provided comprising: a light field emanating from a scene and a positive imaging lens focusing light from the light field onto a DMD array. A first collector lens directs the spatially modulated light to a first photodetector having a spectral sensitivity to a first spectral band. The first photodetector senses the directed light from the first pixel-wise multiplication and produces a signal representing a first inner product between the light incident on the DMD and the first basis function for the first spectral band. A second collector lens directs the spatially modulated light to a second photodetector having a spectral sensitivity to a second spectral band. The second photodetector senses the directed light from the first pixel-wise multiplication and produces a signal representing a first inner product between the light incident on the DMD and the first basis function for the second spectral band.

LASER BASED DISPLAY METHOD AND SYSTEM

The present invention is directed to display technologies. More specifically, various embodiments of the present invention provide projection display systems where one or more laser diodes are used as light source for illustrating images. In one set of embodiments, the present invention provides projector systems that utilize blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides projection systems having digital lighting processing engines illuminated by blue and/or green laser devices. In one embodiment, the present invention provides a 3D display system. There are other embodiments as well. 156.-. (canceled)57. A method of using a projection system comprising: an interface for receiving images or video signal;', 'a light source including a plurality of edge emitting laser diodes, the plurality of edge emitting laser diodes including a first edge emitting laser diode, the first edge emitting laser diode being non-polar or semi-polar or polar and fabricated from gallium nitride material;', 'a power source electrically coupled to the light source; and', 'one or more LCOS (Liquid Crystal on Silicon) chips; and, 'providing the projection system, comprisingoperating the projection system.58. The method of wherein the plurality of edge emitting laser diodes comprises the first edge emitting laser diode claim 57 , a second edge emitting laser diode claim 57 , and a third edge emitting laser diode.59. The method of wherein the first edge emitting laser diode is a green edge emitting laser diode operable in the 490-540 nm wavelength range and characterized by the semipolar {20-21} orientation.60. The method of wherein the green edge emitting laser diode is characterized by the semipolar {20-21} orientation and comprises a stripe region characterized by a cavity orientation substantially in a projection of a c-direction.61. The method of where the second edge emitting laser diode is a green ...

System and Method for Feedback Control in Scanning Projectors

A scanning projector and method is provided that generates a feedback signal from at least one photodetector. In the scanning projector, a scanning mirror is configured to reflect laser light into an image region and an over scanned region. The at least one photodetector is configured to receive a portion of the reflected laser light impacting the over scanned region, and provides the feedback signal responsive to the received portion of light. This feedback signal can then be used to provide precise control of the scanning mirror.

OPTICAL ENGINE FOR CREATING WIDE-FIELD OF VIEW FOVEA-BASED DISPLAY

Methods, systems, components, and techniques provide a retinal light scanning engine to write light corresponding to an image on the retina of a viewer. As described herein, a light source of the retinal light scanning engine forms a single point of light on the retina at any single, discrete moment in time. In one example, to form a complete image, the retinal light scanning engine uses a pattern to scan or write on the retina to provide light to millions of such points over one time segment corresponding to the image. The retinal light scanning engine changes the intensity and color of the points drawn by the pattern by simultaneously controlling the power of different light sources and movement of an optical scanner to display the desired content on the retina according to the pattern. In addition, the pattern may be optimized for writing an image on the retina. Moreover, multiple patterns may be used to additional increase or improve the field-of-view of the display. In one embodiment, these methods, systems, components, and technics are incorporated in an augmented reality or virtual reality display system. 1. A method for providing digital content in a virtual or augmented reality visual system , the method comprising:controlling a light source to create a beam of light corresponding to points of an image; andmoving an optical scanner receiving the beam of light from the light source to perform a scanning pattern to direct the light towards the retina of a viewer of the visual system;wherein the scanning pattern is synchronized over time with the points of the image provided by the beam to create a perception of the image by the viewer.2. The method of claim 1 , wherein the light source comprises one or more lasers.3. The method of wherein the scanning pattern is spiral raster having a smaller gap between the lines of the spiral in the center of the spiral raster.4. The method of claim 3 , wherein the optical scanner directs a higher resolution scanning of the ...

VIDEO IMAGE PROJECTION APPARATUS, VIDE IMAGE PROJECTION METHOD, AND STORAGE MEDIUM

In a method for inhibiting an object contained in an image from becoming hard to be visually recognized when the image is divided and then projected in order to avoid an area on which a projected image is hard to be visually recognized, if, when an input image is to be divided by an unsuitable-for-projection area, a predetermined object exists at a position where the input image is divided, the position of division of the input image is changed to such a position that the object within an area corresponding to the unsuitable-for-projection area is not divided. Then, on areas that exclude the unsuitable-for-projection area, the divided input images are projected after being adjusted to sizes that match the areas. 1. An image processing apparatus comprising:a detecting unit configured to detect an object from an input image;an identification unit configured to identify, in an image projection range in which an image projection unit projects an image, a non-object area on which the image projection unit is not caused to project the object; anda transformation unit configured to transform the input image so that the image projection unit does not project the object on the non-object area and that the object is not divided by the non-object area.2. The image processing apparatus according to claim 1 , wherein:the identification unit identifies a plurality of non-object areas; andthe transformation unit transforms the input image so that the object is not projected on any one of the plurality of non-object areas and that the object is not divided by any one of the plurality of non-object areas.3. The image processing apparatus according to claim 1 , wherein the detecting unit detects as the object at least one of a character and a human body through an image analysis processing performed on the input image.4. The image processing apparatus according to claim 1 , wherein the detecting unit detects as the object at least one of a character and a human body by an analysis ...

PROJECTOR AND HEAD-UP DISPLAY DEVICE AND A PROJECTOR CONTROL METHOD

A projector includes a light generator that emits a first light and a second light of mutually differing color components, a light position detector disposed to receive light incident in a direction outside of the projection surface and that detects a position of the incident light, a light scanner that projects the image onto the projection surface by scanning the first light and the second light with a first scanning angle, and that directs the first light and the second light to the light position detector by scanning the first light and the second light with a second scanning angle that is larger than the first scanning angle, and an adjustor that adjusts an emission timing of the first light and an emission timing of the second light so as to suppress relative misalignment between the first light and the second light on the projection surface. 1. A projector that projects an image on a projection surface , comprising:a light generator that emits a first light and a second light that are lights of mutually differing color components;a light position detector disposed so as to receive light that is incident in a direction outside of the projection surface and that detects a position of the incident light;a light scanner that projects the image onto the projection surface by scanning the first light and the second light with a first scanning angle, and that directs the first light and the second light to the light position detector by scanning the first light and the second light with a second scanning angle that is larger than the first scanning angle; andan adjustor that adjusts, based on a position of the first light and a position of the second light detected by the light position detector, an emission timing of the first light and an emission timing of the second light so as to suppress relative misalignment between the first light and the second light on the projection surface.2. The projector as set forth in claim 1 , further comprising:a temperature ...

DISPLAY SYSTEM

A display system includes a master device that displays a master image corresponding to a part of image data, and a slave device that displays a slave image corresponding to another part of the image data. The slave device includes a slave signal generation unit that starts to generate a slave timing signal at a predetermined interval with reference to a timing based on a first instruction received from the master device, a slave communication unit that transmits to the master device a completion notification indicating that a preparation for displaying the slave image is completed, and a slave display unit that displays the slave image in synchronization with the slave timing signal corresponding to a second instruction received from the master device. 1. A display system comprising:master device that displays a master image corresponding to a part of image data; anda slave device that displays a slave image corresponding to another part of the image data,wherein the slave device includes:a slave signal generation unit that starts to generate a slave timing signal at a predetermined interval with reference to a timing based on a first instruction received from the master device;a slave communication unit that transmits to the master device completion notification indicating that a preparation for displaying the slave image is completed; anda slave display unit that displays the slave image in synchronization with the slave timing signal corresponding to a second instruction received from the master device.2. The display system according to claim 1 , wherein the master device includes:a master signal generation unit that generates a master timing signal at the predetermined interval;a master communication unit that transmits the first instruction generated based on a generation timing of the master timing signal, and transmits the second instruction to the slave device after the completion notification is received from the slave device and a preparation for ...

Time-Multiplexed Multiple View Projection Apparatus

A time-multiplexed multiple view projection apparatus is provided. The apparatus includes: a pixel module for producing a plurality of light images sequentially; and a projection module for receiving the light images and forming a first row of light images and a second row of light images on a stop, wherein one of the first row of light images and the second row of light images is on top of the other. The projection module further includes: a first steering lens for projecting the first row of light images onto a first set of view angles on a screen; and a second steering lens for projecting the second row of light images onto a second set of view angles on the screen, wherein the first set of view angles and the second set of view angles are on the right and left of the screen respectively. 1. A time-multiplexed multiple view projection apparatus , comprising:a pixel module, for producing a plurality of light images sequentially; and a first steering lens, for projecting the first row of light images onto a first set of view angles on a screen; and', 'a second steering lens, for projecting the second row of light images onto a second set of view angles on the screen,', 'wherein the first set of view angles and the second set of view angles are on the right and left of the screen respectively., 'a projection module, for receiving the light images, and forming a first row of light images and a second row of light images on a stop, wherein one of the first row of light images and the second row of light images is on top of the other; and the projection module further comprising2. The time-multiplexed multiple view projection apparatus as claimed in claim 1 , further comprising: 'a scan light source array, further comprising a first row of light sources and a second row of light sources, wherein one of the first row of light sources and the second row of light sources is on top of the other, and respectively correspond to the first row of light images and the second ...

NON-TRANSITORY COMPUTER-READABLE MEDIUM, HOST DEVICE, AND ARRAY DETERMINATION METHOD

A host device supplying, via a hub, different picture signals to first and second projectors connected to ports, respectively, of the hub, executes a correlation process to obtain port numbers of the ports connected to the projectors, respectively, and serial numbers of the projectors, with the port numbers correlated with the serial numbers; an enumeration process to enumerate first and second display devices which are abstract or virtual versions of the projectors, respectively, to obtain display device information of each of the first and second display devices, and to obtain the serial numbers of the projectors in accordance with an order in which the first and second display devices were enumerated; and an array generation process to collate the serial numbers obtained by the correlation process to the serial numbers obtained by the enumeration process to store, in array elements, the display device information in an order identical to an order of the collated serial numbers, based on a numerical order of the port numbers obtained by the correlation process. 1. A non-transitory computer-readable medium storing a program that causes a computer execute processes , the computer supplying , via a hub , different picture signals to first and second displays connected to first and second downstream ports , respectively , of the hub , the processes including:a correlation process to obtain, for each of first and second display devices, port numbers of ports connected to the first and second displays and serial numbers of the first and second displays, with the port numbers correlated with the serial numbers, each of the first and second display devices being an abstract or virtual version of the first and second displays, respectively;an enumeration process to enumerate the first and the second display devices, obtain display device information of each of the first and second display devices in accordance with an order in which the first and second display devices ...

Scanning Projector with Feedback from Border Fixture

A scanning projector and method is provided that generates a feedback signal from at least one photodetector. In the scanning projector, a scanning mirror is configured to reflect laser light into an image region and an over scanned region. The at least one photodetector is configured to receive a portion of the reflected laser light impacting the over scanned region, and provides the feedback signal responsive to the received portion of light. This feedback signal can then be used to provide precise control of the scanning mirror. 1. An apparatus comprising:at least one light source;a scanning mirror positioned to reflect light received from the at least one light source to create a scanning light beam that scans in an image region and an over scanned region;a border fixture having an opening through which the scanning light beam passes when scanning in the image region;a first photodetector positioned to detect light from the scanning light beam when scanning in the over scanned region on the border fixture; anda control circuit to excite the scanning mirror in response to a feedback signal received from the first photodetector.2. The apparatus of wherein the first photodetector is positioned relative to a horizontal scan of the scanning light beam such that a difference between a photodetector entry time and a photodetector exit time of the scanning light beam measured at the first photodetector is independent of a vertical position of the scanning light beam.3. The apparatus of wherein the first photodetector is positioned relative to a horizontal scan of the scanning light beam such that a difference between a photodetector entry time and a photodetector exit time of the scanning light beam measured at the first photodetector is dependent on a vertical position of the scanning light beam.4. The apparatus of further comprising a second photodetector positioned to detect light from the scanning light beam at a different location in the over scanned region claim 1 ...

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 scanning beam display system , comprising: a plurality of layers; and', 'a plurality of reference marks disposed on at least one of the layers;, 'a continuous surface display screen comprisinga first light engine module for conveying first image information by directing and emitting spatially controlled instances of excitation light in a first given area of the continuous surface display screen;a first servo system for determining placement of the emitted spatially controlled instances of excitation light in the 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 emitted excitation light in the first given area;a second light engine module for conveying second image information by directing and emitting spatially controlled instances of excitation light in a second given area of the continuous surface display screen; anda second servo system for determining placement of the emitted spatially controlled instances of excitation light in the second given area of the continuous surface display screen, wherein at least one ...

OSCILLATION DEVICE, SCANNING-TYPE SCANNER DEVICE, INFORMATION TERMINAL, PHASE-SHIFT AMOUNT ADJUSTMENT DEVICE, AND PHASE-SHIFT AMOUNT ADJUSTMENT METHOD

An oscillation device includes an oscillator, an oscillation detector that detects an oscillation of the oscillator and outputs an oscillation detection signal, a phase shift controller that generates a phase shift signal to provide the drive signal as positive feedback to the oscillator, and an amplitude detector that detects an amplitude of the oscillation detection signal and outputs an oscillation amplitude signal. The oscillator is controlled based on the oscillation amplitude signal and the phase shift signal. 1. An oscillation device comprising:an oscillator;an oscillation detector that detects an oscillation of the oscillator and outputs an oscillation detection signal;a phase shift controller that generates a phase shift signal to provide the drive signal as positive feedback to the oscillator; andan amplitude detector that detects an amplitude of the oscillation detection signal and outputs an oscillation amplitude signal; whereinthe oscillator is controlled based on the oscillation amplitude signal and the phase shift signal.2. The oscillation device according to claim 1 , wherein the phase shift controller includes:a disturbance generator that outputs a periodic signal;a drive amplitude detector that detects an amplitude of a drive detection signal and outputs a drive amplitude signal; anda product detector that outputs a detection signal that is provided by a product detection of the drive amplitude signal based on the periodic signal.3. The oscillation device according to claim 1 , wherein the phase shift controller includes:a disturbance generator that outputs a periodic signal;a drive amplitude detector that detects an amplitude of a drive detection signal and outputs a drive amplitude signal; anda product detector that outputs a detection signal by integrating only an interval of an integer multiple of a period of the periodic signal.4. The oscillation device according to claim 2 , further comprising a fluctuator that fluctuates a phase-shift amount ...

CELLULAR PHONE AND PERSONAL PROTECTIVE EQUIPMENT USAGE MONITORING SYSTEM

A cellular phone and personal protective equipment usage system comprises a camera for detecting a person within an environment and a processor which receives information detected by the camera and determines whether the person is involved in distracting activities such as using a cellular phone or other portable electronic device, or print media, or is using personal protective equipment, and issues an alarm signal upon determining that the person is using a cellular phone or is not using personal protective equipment. The camera may be provided on or within a vehicle and the person is an operator of the vehicle. Alternatively, the camera may be mounted in a stationary location within a working site. 1. A driver operated vehicle monitoring system comprising:a camera provided on or within the vehicle for detecting images of the driver within the vehicle;a processor provided on or within the vehicle which receives information detected by the camera and determines whether the driver is using personal protective equipment based on the received information; andcomputer readable memory provided on or within the vehicle configured to store information relating to prerecorded images of a person using personal protective equipment,wherein said processor compares images of the driver and said stored information to determine during operation of the vehicle whether the driver is using personal protective equipment, andwherein the processor is configured to issue an alarm signal upon determining that the driver is not using personal protective equipment.2. The system of claim 1 , wherein the camera is provided on or within a vehicle.3. The system of claim 1 , wherein the camera is mounted in a stationary location within a working site.4. The system of claim 1 , wherein the alarm signal is a visually displayable signal.5. The system of claim 1 , wherein the alarm signal is an audible signal.6. The system of claim 1 , wherein the processor is configured to transmit the alarm ...

OPTICAL DEVICE AND IMAGE DISPLAY APPARATUS

An optical device includes: an optical member which is formed of a plate-shaped part and on which light is incident; a frame so provided that the frame surrounds side surfaces of the optical member and made of an elastic material more elastic than the optical member; a shaft that supports the optical member and the frame in a swingable manner and is made of the elastic material; a support that supports the shaft; a first restricting member provided on a plate surface of the optical member; and a second restricting member that is provided in a position separate from the optical member and comes into contact with the first restricting member when the optical member and the frame swing. 1. An optical device comprising:an optical member which is formed of a plate-shaped part and on which light is incident;a frame so provided that the frame surrounds side surfaces of the optical member and made of an elastic material more elastic than the optical member;a shaft that supports the optical member and the frame in a swingable manner and is made of the elastic material;a support that supports the shaft;a first restricting member provided on a plate surface of the optical member; anda second restricting member that is provided in a position separate from the optical member and comes into contact with the first restricting member when the optical member and the frame swing.2. The optical device according to claim 1 ,wherein the first restricting member is provided in a position where the first restricting member overlaps with both the optical member and the frame when viewed in a direction perpendicular to the plate surface.3. The optical device according to claim 1 ,wherein the elastic material is a material primarily containing a resin.4. The optical device according to claim 1 ,wherein magnetic force produced between the first restricting member and the second restricting member induces swing motion of the optical member and the frame.5. The optical device according to claim ...

CONTROL UNIT, OPTICAL DEFLECTION SYSTEM, IMAGE PROJECTION APPARATUS, AND CONTROL METHOD

A control unit to control a movement of a reflector includes a drive signal output unit to apply a drive voltage having a minimum value and a maximum value in one cycle to a piezoelectric element to deform the piezoelectric element, the deformation of the piezoelectric element causing the reflector to move, and circuitry to control the drive voltage to have the minimum value greater than a zero voltage by a given difference value.

DRIVE APPARATUS

A drive apparatus includes an actuator, an engaging body configured to frictionally engage the actuator, and an optical-path-changing member configured so as to be magnetically linked to the engaging body, and configured to change the direction of an optical path. The actuator causes the engaging body to move in a first direction and in a second direction opposite to the first direction. The optical-path-changing member moves due to being biased by the engaging body when the engaging body has moved in the first direction, and the optical-path-changing member moves following movement of the engaging body due to magnetic attraction when the engaging body has moved in the second direction. 1. A drive apparatus , comprising:an actuator;an engaging body configured to frictionally engage the actuator; andan optical-path-changing member configured so as to be magnetically linked to the engaging body, and configured to change the direction of an optical path, whereinthe actuator causes the engaging body to move in a first direction and in a second direction opposite to the first direction, andthe optical-path-changing member moves due to being biased by the engaging body when the engaging body has moved in the first direction, and the optical-path-changing member moves following movement of the engaging body due to magnetic attraction when the engaging body has moved in the second direction.2. A drive apparatus , comprising:a lens module including a lens;an image sensor;an actuator;an engaging body configured to frictionally engage the actuator; andan optical-path-changing member configured so as to be magnetically linked to the engaging body, and configured to change the direction of an optical path incident on the image sensor through the lens module, whereinthe actuator causes the engaging body to move in a first direction and in a second direction opposite to the first direction, andthe optical-path-changing member moves due to being biased by the engaging body when the ...

IMAGE DISPLAY DEVICE AND CONTROL METHOD THEREOF

An image display device includes: an RGB laser diode configured to output laser light; a horizontal scanner configured to reflect the laser light and perform a reciprocating operation in a horizontal direction; a scanning detection unit configured to detect an operation range in each line in the horizontal direction; a drawing position control unit configured to determine an image display position in each line based on a difference between the detected operation range and a line reference value; and a laser driver configured to drive the RGB laser diode based on image data at a timing corresponding to the determined image display position. 1. An image display device comprising:a light source unit configured to output a light beam;a scanning unit configured to reflect the light beam and repeat a reciprocating operation in a predetermined scanning direction;a scanning detection unit configured to detect an operation range of the scanning unit in each forward or reverse scanning line of the reciprocating operation;a display position determination unit configured to determine an image display position in each scanning line by shortening an interval from a start point of operation of the scanning unit in a subsequent scanning line to the image display position based on a difference between the detected operation range and a reference range when the detected operation range is smaller than the reference range, and by increasing the interval from the start point of operation of the scanning unit in the subsequent scanning line to the image display position based on the difference between the detected operation range and the reference range when the detected operation range is larger than the reference range; anda light source driving unit configured to drive the light source unit based on image data at a timing corresponding to the determined image display position.2. The image display device according to claim 1 , further comprising a counter configured to count the ...

OPTICAL ISOLATOR

An optical assembly including a polarizing beam splitter (PBS) to receive a laser beam from a light source. A micro-electro-mechanical systems (MEMS) mirror disposed in a support structure of the assembly, wherein the MEMS mirror is rotatable and is configured to receive the laser beam from the PBS and to reflect an exit beam. A phase retardation layer deposited on the MEMS mirror. 1. An optical assembly comprising:a polarizing beam splitter (PBS) configured to receive a laser beam from a light source;a micro-electro-mechanical systems (MEMS) mirror disposed in a support structure, wherein the MEMS mirror is rotatable and is configured to receive the laser beam from the PBS and to reflect an exit beam; anda phase retardation layer deposited on the MEMS mirror.2. The optical assembly of claim 1 , wherein the phase retardation layer comprises a quarter wave plate (QWP).3. The optical assembly of claim 1 , wherein the phase retardation layer is not discrete but is spin-coated deposited onto the MEMS mirror at a wafer level.4. The optical assembly of claim 1 , wherein:the MEMS mirror is configured to receive the laser beam at a first angle with respect to a normal axis of the MEMS mirror and the phase retardation layer; andthe MEMS mirror is configured to reflect the laser beam at a second angle with respect to the normal axis of the MEMS mirror and the phase retardation layer, and wherein the first angle is equal to the second angle.5. The optical assembly of claim 1 , wherein the exit beam comprises a rotated polarization.6. The optical assembly of claim 1 , comprising the light source claim 1 , wherein the light source comprises collimated optics.7. An electronic device comprising:a processor and memory; and a light source with collimated optics;', 'a polarizing beam splitter (PBS) configured to receive a laser beam from the light source;', 'a micro-electro-mechanical systems (MEMS) mirror disposed in a support structure, wherein the MEMS mirror is rotatable and is ...

Scanning Laser Devices with Reduced Exit Pupil Disparity

The embodiments described herein provide scanning laser devices that include a relay optic between scanning surfaces. In general, the relay optic is configured to reimage the laser beam reflecting from a first scanner onto the second scanner. Specifically, the relay optic is configured to reimage a laser beam reflected from over an angular range from a first scanning surface of a first scanner onto the scanning surface of the second scanner. This can effectively make the exit pupil of the scanners substantially coincident, and thus can reduce the exit pupil disparity between the scanners that would otherwise exist. 1. A scanning laser device , comprising:at least one source of laser light, the at least one source of laser light configured to generate a laser beam;a first scanner having a first scanning surface, the first scanner configured to reflect the laser beam over a first angular range extending along a first direction; anda relay optic configured to receive the laser beam reflecting from the first scanner and reimage the laser beam over the first angular range from the first scanning surface onto a second scanning surface of a second scanner by generating an exit pupil for the first scanner on the second scanning surface such that the exit pupil for the first scanner is coincident with an exit pupil of the second scanner, the second scanner configured to reflect the laser beam over a second angular range extending along a second direction to generate a pattern of scan lines.2. (canceled)3. The scanning laser device of claim 1 , wherein the relay optic comprises an afocal relay.4. The scanning laser device of claim 1 , wherein the relay optic comprises a first imager and a second imager claim 1 , the first imager configured to focus the first angular range of the reflected laser beam and the second imager configured to convert the focused laser beam over the first angular range into an afocal space.5. The scanning laser device of claim 4 , wherein the first ...

OPTICAL SCANNER, DISPLAY SYSTEM, AND MOBILE OBJECT

An optical scanner includes a light source to emit irradiation light, a light deflector to scan the irradiation light emitted from the light source in a first scanning direction and in a second scanning direction intersecting with the first scanning direction, a photodetector to detect the irradiation light when the light deflector scans a detection field, and circuitry to turn on the light source in a first irradiation field scanned by the light deflector from the detection field to an end in the first scanning direction and turn on the light source in a second irradiation field scanned by the light deflector from the end in the first scanning direction towards the detection field, and cause an edge of the first irradiation field on the detection field side to move to get close to the detection field from a position away from the detection field.

Weaving Plural Sparse Scan Passes to Mitigate the Effects of Motion

A technique is described herein for using an optical scanning system to visit points in a field along a scanning path. The scanning path includes consecutive passes, corresponding to time-shifted instances of a same scan pattern. The plural passes visit different sets of points within the field, to provide different respective sparse traversals of the field. When motion occurs, the passes evenly distribute the deleterious effects of motion over the field. This produces motion artifacts that resemble blur. The human eye and image processing systems can more effectively handle the presence of blur compared to the kind of motion artifacts produced by a traditional single-pass scanning operation.

OUTPUT LIGHT MONITORING FOR BENCHMARKING AND ENHANCED CONTROL OF A DISPLAY SYSTEM

An apparatus displaying content to a viewer by adjusting parameters of the content or display devices based on environmental or display device changes. The apparatus includes a display device with a screen providing digital content. A thematic overlay is provided over the display screen to provide diffuse reflection of light striking the front surface. The output light is a combination of the displayed content from the screen and reflection of light from the thematic overlay. The apparatus includes a digital signage benchmarking tool with an output sensing element a benchmarking module processing the sensed output light to generate output light-based data. The apparatus includes a feedback control module modifying a parameter of the display device based on the output light-based data to modify chromaticity or illumination levels of the display device. The feedback control module operates to modify the digital content to provide the displayed content having an adjusted chromaticity. 1. An apparatus for displaying content to a viewer in a viewing space , comprising:a display device with a display screen providing digital content as displayed content on a surface of the display screen; anda display control assembly comprising an output sensing element sensing output light from the display screen, wherein the display control assembly processes the sensed output light to generate output light-based data and modifies an operating parameter of the display device based on the output light-based data to modify a characteristic of the displayed content.2. The apparatus of claim 1 , wherein the operating parameter is a software or hardware parameter adjusting chromaticity levels of the displayed content.3. The apparatus of claim 1 , wherein the display control assembly further comprises a control image element displaying a reference card image with a pattern of colored objects claim 1 , wherein the output sensing element comprises a sensor or camera concurrently capturing ...

SYNCHRONIZING SCANNING DISPLAY WITH VIDEO

Examples are disclosed herein related to controlling a scanning mirror system. One example provides a display device, comprising a light source, a scanning mirror system configured to scan light from the light source in a first direction at a first, higher scan rate, and in a second direction at a second, lower scan rate, and a drive circuit configured to control the scanning mirror system to display video image data by providing a control signal to the scanning mirror system to control scanning in the second direction, and for each video image data frame of at least a subset of video image data frames, combining the control signal with an adjustment signal to adjust the scanning in the second direction, the adjustment signal comprising a low pass filtered signal with a cutoff frequency based on a lowest resonant frequency of the scanning mirror system in the second direction. 1. A display device , comprising:a light source;a scanning mirror system configured to scan light from the light source in a first direction at a first, higher scan rate, and in a second direction at a second, lower scan rate; and providing a control signal to the scanning mirror system to control scanning in the second direction, and', 'for each video image data frame of at least a subset of video image data frames, combining the control signal with an adjustment signal to adjust the scanning in the second direction, the adjustment signal comprising a low pass filtered signal with a cutoff frequency based on a lowest resonant frequency of the scanning mirror system in the second direction., 'a drive circuit configured to control the scanning mirror system to display video image data by'}2. The display device of claim 1 , wherein the adjustment signal comprises a pre-recorded signal.3. The display device of claim 1 , wherein the drive circuit further comprises a low pass filter configured to form the adjustment signal from an input signal.4. The display device of claim 3 , wherein the low pass ...

HIGH SPEED SCANNING SYSTEM WITH ACCELERATION TRACKING

Disclosed herein is a high throughput optical scanning device and methods of use. The optical scanning device and methods of use provided herein can allow high throughput scanning of a continuously moving object with a high resolution despite fluctuations in stage velocity. This can aid in high throughput scanning of a substrate, such as a biological chip comprising fluorophores. Also provided herein are improved optical relay systems and scanning optics. 167.-. (canceled)68. An optical scanning system for imaging a moving substrate , comprising: i. undergo movement along an axis, and', 'ii. support a substrate comprising a plurality of fields during said movement along said axis;, 'a. a stage configured tob. a camera in optical communication, through an optical path, with a field of said plurality of fields, when said substrate is supported by said stage, and wherein said camera is configured to capture an image of said substrate comprising said field;c. a velocity tracking mirror and an acceleration tracking mirror mounted along said optical path, wherein said velocity tracking mirror and said acceleration tracking mirror are configured to maintain said optical path to stabilize said image of said substrate during said movement of said substrate.69. The system of claim 68 , further comprising a first electrical motor claim 68 , and wherein a movement of said velocity tracking mirror is actuated by said first electrical motor.70. The system of claim 69 , wherein said first electrical motor is a galvanometer.71. The system of claim 68 , further comprising a second electrical motor claim 68 , wherein a movement of said acceleration tracking mirror is actuated by said second electrical motor.72. The system of claim 71 , wherein said second electrical motor is a piezoelectric actuator.73. The system of claim 68 , wherein said velocity tracking mirror and said acceleration tracking mirror are adjacent.74. The system of claim 68 , further comprising an objective lens ...

Optoelectronic detecting device

Line light source

An apparatus for producing a pixel-modulated line light source from a point light source in which a fiber optic bundle formed of individual fibers arranged in a cylindrical array forming a tip at one end and having the individual fibers spread to a substantially flat line of fibers at the other end optically coupled with an optical shutter means which is constructed of an array of aperture cells disposd in a straight line region aligned with the flat line of fibers. The transmissivity of the aperture cells is individually controllable by electrical signals.

Coherent light despeckling

A display device or a receiver device for use with coherent light. A controller applies phase shift values to a multi-region phase array at a frequency sufficiently higher than the flicker fusion rate of the human eye or other intended receiver in order to remove the perception of speckling artifacts which would otherwise appear due to the coherency of the light.

光扫描式头戴式显示器以及视网膜扫描式头戴式显示器

本发明提供一种光扫描式头戴式显示器以及视网膜扫描式头戴式显示器，使头戴部的佩戴性、使用感提高。光扫描式头戴式显示器具有：光扫描用控制装置，其将与图像信号对应的激光作为图像光射出；传输电缆，其传输从光扫描用控制装置射出的图像光；以及头戴部，其具备具有扫描由传输电缆传输的图像光的镜面部的光扫描部，其中，头戴部具有放大从光扫描部输出的与镜面部的倾斜对应的动作信号的放大器部，光扫描用控制装置具有基于从放大器部经由传输电缆输出的动作信号而生成差分信号的差分生成部、和除去差分生成部生成的差分信号的噪声的滤波器部。

Video projection system

적어도 하나의 광다발(14; 15; 16; 22)을 발생시키고, 휘도제어가능한 적어도 하나의 광원(4; 5; 6)과, 비월-또는 순차주사를 통하여 화면(36)상에 비디오 화상의 화소를 발생시키기 위하여 광다발(22)을 순차적으로 편향시키는 편향기구(30)으로 구성된 비디오 투사 장치가 두 개의 구성요소군(1,2)를 가지며, 이중 첫 번째 구성요소군(1)은 적어도 하나의 광원(4,5,6)을 포함하고, 적어도 하나의 광다발이 방출되는 하나의 광출력을 갖고, 두 번째 구성요소군(2)은 편향기구(30)을 포함하고, 광다발(22)이 편향기구(30)의 내부로 투영될 수 있도록 하는 하나의 광입력을 갖는다. Generating at least one light bundle 14; 15; 16; 22, and controlling the brightness of the video image on the screen 36 through interlaced or sequential scanning with at least one light source 4; The video projection device composed of a deflection mechanism 30 which sequentially deflects the optical bundles 22 to generate pixels has two component groups 1, 2, of which the first component group 1 is at least One light source 4, 5, 6, having one light output from which at least one light bundle is emitted, and the second group of components 2 comprises a deflection mechanism 30, It has one light input that allows 22 to be projected into the interior of the deflection mechanism 30. 이에 더하여, 첫 번째 구성요소군(1)의 광출력을 두 번째 구성요소군(2)의 광입력과 광학적으로 연결시킬 수 있도록 광전달기구(3)가 제공된다. In addition, a light transmitting mechanism 3 is provided to optically connect the light output of the first component group 1 with the light input of the second component group 2.

Electronically scanned beam display

A scanning control circuit generates a clock signal corresponding to an expected scan timing of a resonant scanner. In one approach, the control circuit uses a pair of direct digital synthesis (DDS) integrated circuits. A first DDS chip provides a system clock that is synchronized to the monitored period of the scanner. A second DDS chip generates a frequency chirped signal that has a frequency profile corresponding to a desired pixel clock timing. To control phase precisely, four complementary clock signals are weighted and mixed at light source drivers to produce relative phase shifts for different light sources.

OPTICAL SCANNER

양방향 스캔 방식의 컬러 디스플레이 장치

광원 제어신호에 따라 색광(color light)을 조사하는 광원계; 상기 색광을 광변조기 제어신호에 따라 변조하여 회절광을 생성하는 광변조기 소자; 상기 광변조기 소자로부터 조사되는 상기 회절광을 스캐너 제어신호에 따라 스크린에 양방향으로 스캔하여 투사하는 스캐너; 및 상기 스크린에 표현될 영상 정보에 상응하여 상기 광원 제어신호, 상기 광변조기 제어신호 및 상기 스캐너 제어신호를 각각 상기 광원계, 상기 광변조기 소자 및 상기 스캐너에 전달하여 제어하는 영상 제어 회로를 포함하는 양방향 스캔 방식 컬러 디스플레이 장치에 관한 것이다. 1개의 광변조기 소자를 이용한 1 패널 방식을 통해 3 패널 방식 컬러 디스플레이 장치와 비교할 때 패널이 2개나 줄어듦으로 인해 광학계 및 회로가 단순해져 전체의 재료비에 있어서 상당한 절감효과가 있다. 컬러 디스플레이, 광변조기, 양방향, 스캐너

Apparatus and method of modulating laser diode for laser diode display

A modulation apparatus and a modulating method of a specific light source used as a laser display source are provided to improve a laser display by clearly discriminating the brightness of pixels through digital on/off modulations in controlling the brightness. A modulation apparatus of a specific light source used as a laser display source is composed of a frequency modulating unit for digitally on/off-modulating the output light(DBR-LD) of a semiconductor laser at the frequency higher than repetition frequency required to form a laser display image and a high-speed pulse including unit including at least one high-speed pulse corresponding to the brightness of the pixels within a predetermined period in the modulated output light required to form one pixel.

Data storage system

1312818 Optical data store LICENTIA PATENT-VERWALTUNGS-GmbH 21 July 1970 [31 July 1969] 35291/70 Heading G4M A data storage system comprises a hollow cylinder adapted to guide at least one tape along its inner surface, a rotating mirror inside the cylinder passing a beam from one end of the cylinder to the inner surface of the cylinder or vice versa. One or more tapes are passed longitudinally or helically along the inner surface, being held by suction, and optionally electrostatic charge as well (plastics coating on cylinder). Digital data is written as presence or absence of discoloration (or perforation) on the tapes by a laser beam applied from one end of the cylinder via a lens and the mirror on to the recording position. An organic recording material is used in the case of discoloration recording. For readout, a beam is applied in the opposite direction through an aperture in the cylinder or a cylindrical lens forming part of the cylinder wall, from a ring light source or a localized source. In the latter case, the beam goes via a mirror on the rotating shaft supporting the other mirror above, and two annular mirrors, to be applied to the cylinder. The read-out light from the tape goes via the first mirror, a lens and a biprism (or mirror triad) to photodiodes. The biprism (or mirror triad) is rotated at half the mirror rotation speed in the opposite direction to counter undesired rotation of the image (in the helical tape case). A column of photodiodes is used bridging several adjacent data tracks. Address information recorded allows selection of the appropriate track. During writing, an unmodulated control beam accompanies the writing beam to read the information recorded, for a check comparison.

Recording/reproducing radiation system with the record medium wrapped and guided helically inside a hollow cylinder

A high density optical data recording and reproducing system for use with light-sensitive tape-type recording carriers including a cylinder, a structure for guiding a tape carrying a lightsensitive substance along the inner surface of the cylinder and a mirror for continuously deflecting a recording or reproducing light beam around the periphery of the cylinder while the tape advances along the cylinder axis so that the beam describes a path across each tape oblique to its axis. In the case of recording, the beam is modulated by the information to be recorded and discolors the carrier. In the case of reproduction, the beam traverses the tape and the image on the illuminated portion is enlarged and focussed on a reproduction device.

Actuator comprising mechanic filter

본 발명은 외부 입력에 의해 구동되는 엑츄에이터에 관한 것으로서, 자체적인 기계적인 구조를 통해 특정 고주파의 전달을 차단할 수 있는 저주파 통과 필터를 제공하여 고주파로 인한 떨림을 제거할 수 있다. 외부 짐벌 및 내부 짐벌을 제공하고, 외부 짐벌에 연장된 축과 동일한 방향으로 배치되는 연결축을 외부 짐벌 및 내부 짐벌 사이에 형성하여 원하지 않는 고주파 진동이 내부 짐벌 사이에 위치한 진동체에 전달되는 것을 차단한다. 이와 같이 구성하여 전자적인 제어가 필요없어서 별도의 부품을 소요하지 않으면서 비교적 간단한 기계적인 설계 변경만으로 저주파 통과 필터를 제공하여 생산성이 높고 추가적인 비용 소모가 거의 없는 효과가 있다. 엑츄에이터, 스캐너, 저주파 통과 필터

Picture display unit

Использование: в телевизионной технике, а также в проекционных телевизионных приемниках с большим экраном. Сущность изобретения: устройство воспроизведения изображения содержит лазерные источники излучения 1, оптический управляемый модулятор 2, сумматор 3, блок управления 4, фокусирующий элемент 5, развертки по строке и по кадру 6,7, оптический отклоняющий блок, выполненный из двух цилиндров 8,9, при этом один цилиндр расположен в плоскости строчной, другой - в плоскости кадровой разверкти. Цель изобретения - увеличение угла отклонения светового луча. 1 з.п. ф-лы, 4 ил. СУ 0$0с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) 13) ВО” 2030 842 ` 5 МК” Н 04 М 9/44, 5/74 СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 4885548/09, 29.11.1990 (46) Дата публикации: 10.03.1995 (56) Ссылки: Зарубежная электроника, М 5, 1978, с.50. (71) Заявитель: Кадыков И.Ф. (72) Изобретатель: Кадыков И.Ф. (73) Патентообладатель: Внешнеэкономическая ассоциация "Интерагро" (54) УСТРОЙСТВО ДЛЯ ВОСПРОИЗВЕДЕНИЯ НА ЭКРАНЕ ИЗОБРАЖЕНИЯ (57) Реферат: Использование: в телевизионной технике, а также в проекционных телевизионных приемниках с большим экраном. Сущность изобретения: устройство воспроизведения изображения содержит лазерные источники излучения 1, оптический управляемый модулятор 2, сумматор 3, блок управления 4, фокусирующий элемент 5, развертки по строже и по кадру 6, оптический отклоняющий блок, выполненный из двух цилиндров 8,9, при этом один цилиндр расположен в плоскости строчной, другой - в ПЛОСКОСТИ кадровой разверкти. Цель ©, изобретения - увеличение угла отклонения светового луча. 1 з.п. ф-лы, 4 ил. с А 7 < ” со 9 © © $. © 9 я Фиг. 1 с — О СУ 0$0с ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВО” 2030 842 ` о НН 04 М 9/14, 5/74 СЛ 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 4885548109, 29.11.1990 (46) Бае ог рибИсаНоп: 10.03.1995 (71) АррИсапе: Каауком 1.Ё. (72) пуетог. — Кадуком 1.Е. (73) Ргорпеюг: \УпезппеейпКопоптспезКа]а ...

Semiconductor laser light source device

LCD Projector with Wide Cell Gap Tolerance LC Panel

본 발명은 액정 프로젝터(LCD Projector)에 관한 것으로, 각각의 계조 단계(gray level) 대하여 밝기(brightness)와 색좌표(color coordinate)의 변화를 최소로하여 화질을 높인 것이다. 삼판식 액정 프로젝터는 광원(30)에서 나온 백색광을 빨간색과 파란색과 초록색으로 분리하고, 각각의 색을 변조하는 액정판넬(31, 32, 33)을 지나 다시 합쳐진 다음 필드렌즈(37)에서 확대되어, 스크린(38)에 상을 맺는다. 각각의 색을 변조하는 액정판넬은 모든 계조 단계에 대하여 투과율이 가급적 동일해야 한다. 그러나 액정판넬을 만드는 과정에서 어느 정도 액정셀의 두께(cell gap)의 불균일이 생기고, 이로 말미암아 액정판넬에서 투과율이 달라서 화질이 떨어진다. 본 발명은 액정층에 전압을 걸어주는 화소전극(5) 또는 공통전극(6)에 각각의 전극을 식각한 슬릿패턴(20) 또는 플로팅(floating) 전극(21)을 두어, 액정셀의 두께의 변화에 따르는 측면전기장 성질을 이용하여, 액정셀의 두께 변화에 대한 액정판넬의 투과율 변화를 최소화 하여 화질을 높였다. 본발명의 액정프로젝터는 회의용 자료나 HD TV와 같이 높은 휘도와 고화질이 요구되는 부분에 표시소자로 응용될 수 있다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal projector (LCD Projector), and to improve image quality by minimizing changes in brightness and color coordinates for each gray level. The three-panel liquid crystal projector separates the white light emitted from the light source 30 into red, blue and green, merges again through the liquid crystal panels 31, 32 and 33 which modulate the respective colors, and then enlarges the field lens 37. On the screen 38. Each color-modulating liquid crystal panel should have the same transmittance for all gray levels. However, in the process of making the liquid crystal panel, there is some nonuniformity of the cell gap of the liquid crystal cell, which causes the quality of the liquid crystal panel to be different due to different transmittance. According to the present invention, a slit pattern 20 or a floating electrode 21 in which each electrode is etched is disposed on a pixel electrode 5 or a common electrode 6 that applies a voltage to a liquid crystal layer. By using the lateral electric field properties according to the change, the image quality was improved by minimizing the change in transmittance of the liquid crystal panel with respect to the thickness change of the liquid crystal cell. The liquid crystal projector of the present invention can ...

Drive device

Laser projector having safety lens for audience scanning

A laser light projector includes a laser beam generated by a laser light source, a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates, a scan-fail monitor and a safety-lens. The safety-lens includes at least one optical power, and is positioned and arranged for increasing the safety of the projected light within audience areas by increasing beam divergence in the audience, while keeping beam divergence low above the heads of the audience, thus allowing mirror targeting to occur.

Laser projector for audience scanning

An apparatus and method for a laser light projector, including a laser beam generated by a laser light source; a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates; a power meter positioned for quantifying the laser beam's power in real time; a fault detector operably connected in thelaser light projector to detect a fault condition and automatically generate a fault signal in response thereto; a modulator responsive to the fault signal for reducing power in the laser beam; and a fault shutter operably associated with the laser light source and responsive to the fault signal so as to shut off the laser beam.

DEVICE FOR PLAYING THE IMAGE

98111821 А Ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (11) ох (13) (51) МК’ 04 м 9/31 (12 ИЗВЕЩЕНИЯ К ЗАЯВКЕ НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 98111821/09, 30.06.1998 (30) Приоритет: 30.09.1996 ОЕ 19640404.5 (43) Дата публикации заявки: 10.05.2000 (86) Заявка РСТ: ЕР 97/04834 (06.09.1997) (87) Публикация РСТ: М/О 98/15127 (09.04.1998) Адрес для переписки: (71) Заявитель(и): Лтд ГмбХ унд Ко. Лазер-Дисплей-Технологи КГ (ОЕ) (72} Автор(ы): Йюрген Крэнерт (ОЕ), Кристхард Детер (ОЕ), Вольфганг Фогель (ОЕ), Мартин Эненкель (ОЕ) (74) Патентный поверенный: Веселицкая И.А.., 101000, Москва, Малый Златоустинский пер. Кузенкова Н.В., д.10, кв.15 Пивницкая Н.Н.., Веселицкий М.Б. (54) УСТРОЙСТВО ДЛЯ ВОСПРОИЗВЕДЕНИЯ ИЗОБРАЖЕНИЯ РАЭА - Признание заявок на изобретение отозванными в связи с непредставлением в установленный срок ходатайства о проведении экспертизы заявки по существу (51) Но4м Дата отзыва заявки: 25.11.2004 Извещение опубликовано: 10.01.2005 БИ: 01/2005 Страница: 1 езгггз6е пы А"

Driving device

本发明涉及驱动装置。摄像装置(1)具备：致动器(41)；卡合体(42)，其相对于致动器(41)进行摩擦卡合；光路变更部件，其相对于卡合体(42)进行磁力结合，变更光路的朝向。致动器(41)使卡合体(42)向上下方向移动。光路变更部件(3)在卡合体(42)向上侧移动时，通过被卡合体(42)施力而摆动，在卡合体(42)向下侧移动时，通过磁力的吸附力，追随卡合体(42)的移动而摆动。

Laser display device

본 발명은 레이저 표시장치에 관한 것이다. The present invention relates to a laser display device. 본 발명의 따른 레이저 표시장치는 광을 발생시키는 광원과, 상기 광원에서 출사되는 광의 도파로를 형성하는 광섬유와, 상기 광섬유 내를 진행하는 상기 광의 위상을 제어하는 광 위상 제어장치를 구비하고, 상기 광 위상 제어장치는 피에조 진동소자를 포함하는 것을 특징으로 한다.  A laser display device according to the present invention includes a light source for generating light, an optical fiber for forming a waveguide of light emitted from the light source, and an optical phase control device for controlling a phase of the light traveling in the optical fiber. The phase control device is characterized in that it comprises a piezo vibration device. 이러한 구성에 의해서, 본 발명에 따른 레이저 표시장치는 광섬유를 굴곡시켜 광섬유 내를 진행하는 광의 위상을 제어한다. 이와 같은 광 위상제어 방법을 통해 레이저 광의 간섭성을 제거하여 스페클 현상을 제거한다. 본 발명에 따른 레이저 표시장치는 스페클 현상을 제거하여 사용자의 눈의 피로를 덜어줌과 아울러, 표시품질을 향상시킬 수 있다. By such a configuration, the laser display device according to the present invention bends the optical fiber to control the phase of the light traveling in the optical fiber. The optical phase control method removes the speckle phenomenon by removing the coherence of the laser light. The laser display device according to the present invention can remove the speckle phenomenon to reduce eye fatigue and improve display quality.

Compact rtd instrument panels and computer interfaces

This concerns my RTD invention disclosed in co pending applications, particularly but not necessarily for use in the “center stack” region of vehicle instrument panels. Disclosed are novel prism devices to shrink the size of the unit, while increasing resistance to vibration and condensation and providing easier assembly into the vehicle. Also disclosed are methods to improve the efficiency of such projector based systems for delivering display light to the driver of the vehicle, as well as to reduce noise caused by backscatter from the screen and control surface, or sunlight coming through the windshield. RTD versions for home or office use are also disclosed, including a ““cushion computer”-like device meant primarily for use on one's lap and optionally having a reconfigurable keyboard. The device can also serve as a TV remote and perform other useful functions in the home, workplace, or car, and may serve as a useful interface accessory to expand the usability and enjoyment of mobile devices.

Portable laser projection device for medical image display

A medical image display system includes an image storage and image processing device for storing, processing and outputting image data relating to a patient's body and/or additional image data. The system also includes a portable laser projection device that projects the image data and/or additional image data onto a projection location.

Reflection Type Display Apparatus

본 발명은 반사형 디스플레이 장치에 관한 것으로, 보다 상세하게는 삼파장 광원에서 나오는 빛이 액츄에이터로 구동되는 소정의 N개 미소 거울 표면에서 분리된 삼원색(RGB)은 다시 회전 다각 거울면에 의해 반사되어 투사 스크린에서 영상이 형성되는 반사형 디스플레이 장치에 관한 것이다. 본 발명을 이루기 위한 수단으로, 적색, 녹색, 청색으로 구성된 삼파장 광원과; 상기 삼파장 빛이 통과되는 제1 개구와; 상기 제1 개구의 상이 회절 격자 거울을 반사하여 제2 개구로 통과하게 하는 포커싱 렌즈부와; 액츄에이터로 구동되며 입사된 상을 반사시키는 소정의 N개 회절격자형 미소 거울과; 미소 거울표면에서 분리된 적색, 녹색, 청색의 삼파장 빛은 다시 반사되어 스크린에 투사되는 회전 다각 거울과; 색분리가 된 제1 개구의 상이 투과되는 제2 개구와; 투사 스크린에 투사되는 투사 렌즈부가 포함되어 이루어진 것을 특징으로 한다.

Laser display device

레이저 디스플레이 장치가 개시된다. 개시된 레이저 디스플레이장치는 적어도 하나의 레이저빔을 방출하는 광원, 레이저빔을 주주사 및 부주사하는 스캐닝부 및 화상이 형성되는 것으로, 스캐닝부에서 주사된 레이저빔에 의하여 여기광 및 산란광이 발생하는 화상부를 포함한다. A laser display device is disclosed. The disclosed laser display device includes a light source for emitting at least one laser beam, a scanning part for main scanning and sub-scanning of a laser beam, and an image, and an image part for generating excitation light and scattered light by the laser beam scanned by the scanning part. Include.

Dual-aperture zoom digital camera with automatic adjustable tele field of view

디지털 카메라는 와이드 이미지 해상도를 갖는 와이드 이미지를 제공하도록 구성된 업라이트 와이드 카메라와, 와이드 이미지 해상도보다 높은 텔레 이미지 해상도를 갖는 텔레 이미지를 제공하도록 구성된 폴딩된 텔레 카메라를 포함하며, 상기 와이드 카메라 및 텔레 카메라들은 각기 와이드 시야 및 텔레 시야(fields of view)(FOV W 및 FOV T )를 가지며, 각기 와이드 이미지 센서 및 텔레 이미지 센서를 가지며, 상기 디지털 카메라는 객체 또는 장면과 상기 텔레 이미지 센서 사이에 폴딩된 광 경로를 제공하도록 동작하는 회전형 OPFE를 더 포함하며, 상기 OPFE의 회전은 FOV W 에 대해 FOV T 를 이동시킨다. 일부 실시예들에서, 직사각형 FOV T 는 직사각형 FOV W 에 직교한다. 상기 디지털 카메라가 FOV W 내에 FOV T 를 디스플레이하는 사용자 인터페이스를 갖는 호스트 장치에 포함될 때, 사용자 인터페이스는 FOV W 에 대해 FOV T 를 포지셔닝시키고, FOV W 를 가로질러 FOV T 를 스캔하고, 개별 와이드 이미지 및 텔레 이미지들, 합성 와이드 플러스 텔레 이미지들, 및 스티칭된 텔레 이미지들을 획득, 저장 및 디스플레이한다. FOV W 내에서의 FOV T 의 포지셔닝은 관심 객체를 지속적으로 추적함으로써 자동으로(자율적으로) 수행될 수 있다.

Dual-aperture zoom digital camera with auto-adjustable tele-view (FOV)

디지털 카메라는 와이드 이미지 해상도를 갖는 와이드 이미지를 제공하도록 구성된 업라이트 와이드 카메라와, 와이드 이미지 해상도보다 높은 텔레 이미지 해상도를 갖는 텔레 이미지를 제공하도록 구성된 폴딩된 텔레 카메라를 포함하며, 상기 와이드 카메라 및 텔레 카메라들은 각기 와이드 시야 및 텔레 시야(fields of view)(FOV W 및 FOV T )를 가지며, 각기 와이드 이미지 센서 및 텔레 이미지 센서를 가지며, 상기 디지털 카메라는 객체 또는 장면과 상기 텔레 이미지 센서 사이에 폴딩된 광 경로를 제공하도록 동작하는 회전형 OPFE를 더 포함하며, 상기 OPFE의 회전은 FOV W 에 대해 FOV T 를 이동시킨다. 일부 실시예들에서, 직사각형 FOV T 는 직사각형 FOV W 에 직교한다. 상기 디지털 카메라가 FOV W 내에 FOV T 를 디스플레이하는 사용자 인터페이스를 갖는 호스트 장치에 포함될 때, 사용자 인터페이스는 FOV W 에 대해 FOV T 를 포지셔닝시키고, FOV W 를 가로질러 FOV T 를 스캔하고, 개별 와이드 이미지 및 텔레 이미지들, 합성 와이드 플러스 텔레 이미지들, 및 스티칭된 텔레 이미지들을 획득, 저장 및 디스플레이한다. FOV W 내에서의 FOV T 의 포지셔닝은 관심 객체를 지속적으로 추적함으로써 자동으로(자율적으로) 수행될 수 있다. The digital camera includes an upright wide camera configured to provide a wide image having a wide image resolution and a folded telescopic camera configured to provide a tele image having a tele image resolution higher than the wide image resolution, Each having a wide field of view and fields of view (FOV W and FOV T ), each having a wide image sensor and a tele image sensor, said digital camera comprising a light path Wherein the rotation of the OPFE moves the FOV T relative to the FOV W. In some embodiments, the rectangular FOV T is orthogonal to the rectangular FOV W. When the digital camera included in a host device having a user interface for displaying the FOV T within the FOV W, user interface, and positioning the FOV T for FOV W, across the FOV W to scan FOV T, and each wide-image, and Stores and displays telere images, composite wide plus telere images, and stitched telere images. The positioning of the FOV T within the FOV W can be performed automatically (autonomously) by continuously tracking the object of interest.

Method and device for recording an image scene and use of the device in a copier

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

Active imaging using a micro-electro-mechanical system (mems) micro-mirror array (mma)

Imaging systems and method of optical imaging. One example of an imaging system includes an optical scanning subsystem including an optical source and a MEMS MMA, the MEMS MMA being configured to direct optical radiation generated by the optical source over an area of a scene, a detection subsystem including an optical sensor configured to collect reflected optical radiation from the area of the scene, and a fused fiber focusing assembly including a fused fiber bundle, a plurality of lenses coupled together and positioned to receive and focus the reflected optical radiation from the area of the scene directly onto the fused fiber bundle, a microlens array interposed between the fused fiber bundle and the optical sensor and positioned to receive the reflected optical radiation from the fused fiber bundle, and a focusing lens positioned to direct the reflected optical radiation from the microlens array onto the optical sensor. The MEMS MMA may be further configured to generate and independently steer multiple beams of optical radiation, at the same or different wavelengths, to more fully interrogate the area of the scene. The MEMS MMA through its Piston capability may be further configured to shape the optical beam(s) to execute a variety of optical functions within the beam steering device.

Active imaging using a micro-electro-mechanical system (MEMS) micro-mirror array (MMA)

Imaging systems and method of optical imaging. One example of an imaging system includes an optical scanning subsystem including an optical source and a MEMS MMA, the MEMS MMA being configured to direct optical radiation generated by the optical source over an area of a scene, a detection subsystem including an optical sensor configured to collect reflected optical radiation from the area of the scene, and a fused fiber focusing assembly including a fused fiber bundle, a plurality of lenses coupled together and positioned to receive and focus the reflected optical radiation from the area of the scene directly onto the fused fiber bundle, a microlens array interposed between the fused fiber bundle and the optical sensor and positioned to receive the reflected optical radiation from the fused fiber bundle, and a focusing lens positioned to direct the reflected optical radiation from the microlens array onto the optical sensor. The MEMS MMA may be further configured to generate and independently steer multiple beams of optical radiation, at the same or different wavelengths, to more fully interrogate the area of the scene. The MEMS MMA through its Piston capability may be further configured to shape the optical beam(s) to execute a variety of optical functions within the beam steering device.

Dual-aperture zoom digital camera with automatic adjustable tele field of view

디지털 카메라는 와이드 이미지 해상도를 갖는 와이드 이미지를 제공하도록 구성된 업라이트 와이드 카메라와, 와이드 이미지 해상도보다 높은 텔레 이미지 해상도를 갖는 텔레 이미지를 제공하도록 구성된 폴딩된 텔레 카메라를 포함하며, 상기 와이드 카메라 및 텔레 카메라들은 각기 와이드 시야 및 텔레 시야(fields of view)(FOV W 및 FOV T )를 가지며, 각기 와이드 이미지 센서 및 텔레 이미지 센서를 가지며, 상기 디지털 카메라는 객체 또는 장면과 상기 텔레 이미지 센서 사이에 폴딩된 광 경로를 제공하도록 동작하는 회전형 OPFE를 더 포함하며, 상기 OPFE의 회전은 FOV W 에 대해 FOV T 를 이동시킨다. 일부 실시예들에서, 직사각형 FOV T 는 직사각형 FOV W 에 직교한다. 상기 디지털 카메라가 FOV W 내에 FOV T 를 디스플레이하는 사용자 인터페이스를 갖는 호스트 장치에 포함될 때, 사용자 인터페이스는 FOV W 에 대해 FOV T 를 포지셔닝시키고, FOV W 를 가로질러 FOV T 를 스캔하고, 개별 와이드 이미지 및 텔레 이미지들, 합성 와이드 플러스 텔레 이미지들, 및 스티칭된 텔레 이미지들을 획득, 저장 및 디스플레이한다. FOV W 내에서의 FOV T 의 포지셔닝은 관심 객체를 지속적으로 추적함으로써 자동으로(자율적으로) 수행될 수 있다. The digital camera includes an upright wide camera configured to provide a wide image with a wide image resolution, and a folded tele camera configured to provide a tele image with a tele image resolution higher than the wide image resolution, the wide camera and the tele cameras Each has a wide field of view and a tele field of view (FOV W and FOV T ), and each has a wide image sensor and a tele image sensor, and the digital camera is a folded optical path between an object or scene and the tele image sensor. And a rotating OPFE operative to provide a rotational OPFE, wherein rotation of the OPFE moves the FOV T relative to the FOV W. In some embodiments, the rectangular FOV T is orthogonal to the rectangular FOV W. When the digital camera included in a host device having a user interface for displaying the FOV T within the FOV W, user interface, and positioning the FOV T for FOV W, across the FOV W to scan FOV T, and each wide-image, and Acquires, stores, and displays tele images, composite wide plus tele images, and stitched tele images. The positioning of the FOV T within the FOV W can be performed automatically (autonomously) by continuously tracking the object of interest.

Large screen video display systems and methods therefor

A large screen display system for video modulated collimated light provides superior contrast and brightness, in a shallow depth configuration if desired. A single modulated laser beam which may have different color components is raster scanned, defining a beam envelope which is then expanded along an adequately long optical path length within a confined volume and directed toward a display screen on which the beam impinges. The optical system may selectively redirect the available light energy into a viewing volume with optical gain and with high contrast. In a particularly compact example of a rear projection system, the optical path is defined by successive reflecting elements adjacent and substantially coextensive with the screen, which cause the beam path to traverse behind the screen in successive path segments. The beam envelope is then directed obliquely against the display plane, but differentially redirected so as to be transmitted orthogonally outwardly. Optical gain may be further improved by an array of lens elements at the display plane defining diffuse point light sources to an observer, and the lens elements further may anistropically shape the far field distribution of the light. Light absorbing means disposed at the display plane can be used to enhance color contrast substantially.

Display unit and scanning method therefor

간섭성 광을 스크린상에 주사시켜, 영상을 형성하는 디스플레이 장치에 있어서는 HDTV등의 고해상도의 영상을 형성하는 때는 폴리곤 미러를 초고속으로 회전시킬 필요가 있고, 고 성능의 폴리곤 미러를 사용할 필요가 있을 뿐만아니라, 폴리곤 미러 회전시의 소음과 소비 전력이 문제가 된다. 간섭성 광의 주사 광학계에 다중 반사용의 미러(6a,6b)를 삽입하는 것으로, 폴리곤 미러(5)의 일면이 간섭성 광을 1라인만큼 주사하는 사이에, 복수의 주사선을 얻는 것이 가능해지고, 폴리곤 미러의 회전수를 저하할 수 있다.

Video projection system

Light scanning and printing system

VARIABLE SIZE LIGHT POINT SCANNING DEVICE

Vertical and horizontal optical scanning appts. - has tilted and concave mirrors above rotating polygonal mirror combined with optical system

The image scanning system using vertical and horizontal scanning, has a tilted plane mirror (13) above a rotating polygonal mirror (3). The plane mirror tilts about a horizontal axis (12) and the mirror rotates about a vertical axis, and also tilts about a horizontal axis parallel to the axis of the plane mirror. Light from the plane mirror is reflected onto a tilted concave mirror (11) and back towards the polygonal mirror. Between them is a field lens (9) at the focal point (5) of the reflected beam, which focusses the beam onto the rotating mirror. The optical system (2) focusses the beam onto a detector (1). Between the optical system and the detector in an autocollimator mirror (14) whose opening limits the aperture angle of the beam. The concave mirror (11) is aspherically corrected.

Device for increasing the frequency of oscillations of a light ray

Patent FR2096982B1