СИСТЕМА ДЛЯ ОБЕСПЕЧЕНИЯ ДВУХПОЗИЦИОННОГО ЗУММИРОВАНИЯ-ФОКУСИРОВКИ

Система для обеспечения функции двухпозиционного зуммирования-фокусировки в устройстве видеоконтроля включает в одном из вариантов осуществления изобретения линзовую ячейку фокусировки и основную диафрагму, прикрепленные к набору неподвижных направляющих и связанные с линзовой ячейкой зуммирования. Причём линзовая ячейка фокусировки может перемещаться в первое положение вдоль упомянутых направляющих посредством включения внешнего механизма перемещения линз, а также может перемещаться во второе положение посредством ослабления сжатой пружины фокусировки. Перемещение линзовой ячейки фокусировки между первым и вторым положением вызывает перемещение линзовой ячейки зуммирования и вспомогательной диафрагмы между первым и вторым положением зуммирования и диафрагмы соответственно. Технический результат заключается в обеспечении возможности получения увеличенных и неувеличенных изображений целевого объекта в экстремальных устройствах. 18 з.п. ф-лы, 5 ил.

Оптическая система видеонаблюдения

Изобретение относится к оптическим системам видеонаблюдения, представленным в виде многосенсорных устройств видеонаблюдения с возможностью регулирования угла наклона и поворота каждого сенсорного модуля в составе устройства. Заявленная оптическая система видеонаблюдения представляет собой опорную платформу с сенсорными модулями, каждый из которых включает объектив и светочувствительную матрицу. При этом объектив со светочувствительной матрицей устанавливается на съемной оправе, которая фиксируется к опорной платформе при этом, каждая оправа взаимодействует с, по меньшей мере тремя микрометрическими винтами, каждый из которых приводится во вращение микродвигателем. Технический результат - создание универсальной гибкой системой видеонаблюдения, обеспечивающей качественные панорамные изображения. 4 з.п. ф-лы, 5 ил.

ОПТИЧЕСКОЕ УСТРОЙСТВО (ВАРИАНТЫ)

Использование: при создании оптических устройств, снабженных объективами с переменным фокусным расстоянием. Сущность изобретения: упругий элемент, установленный между группами линз оптического устройства с возможностью поддержания расстояния между ними, выполнен в виде не пропускающего свет в пространство между группами линз устройства и представляет собой спирально свернутую ленту, установленную с возможностью растяжения из сжатого состояния, причем в растянутом состоянии концентрично расположенные витки спирали частично перекрывают друг друга, внутренний виток спирально свернутой ленты скреплен с первой группой линз, а наружный виток скреплен с второй группой линз. Спирально свернутая лента в ее развернутом плоском состоянии может содержать пару параллельных продольных кромок и пару поперечных кромок, расположенных под некоторым углом к продольной кромке. Во втором варианте в оптическом устройстве, содержащем первую группу линз, установленную в первой оправе, вторую группу линз, установленную ...

ОПТИЧЕСКИЙ РАЗЪЕМ, КАБЕЛЬ И УСТРОЙСТВО ОПТИЧЕСКОЙ СВЯЗИ

Группа изобретений относится к устройствам оптической связи. Оптический разъем, кабель и устройство оптической связи содержит коллиматорную линзу для излучения путем преобразования светового сигнала из тракта передачи света или источника света в коллимированный свет. Корпус выполнен с возможностью удержания коллиматорной линзы и соединения с частью оптического разъема, предназначенной для приема светового сигнала. Блок привода линзы выполнен с возможностью управления коллиматорной линзой таким образом, что световой сигнал, излучаемый с помощью коллиматорной линзы, имеет заданный угол расхождения, когда корпус не соединен с приемной частью оптического разъема. Технический результат - предотвращение негативного влиянияна зрительные функции восприятия. 3 н. и 6 з.п. ф-лы. 10 ил.

АКТИВНАЯ ОПТИЧЕСКАЯ СИСТЕМА С ПЕРЕМЕННЫМ РАЗРЕШЕНИЕМ

УЗЕЛ ТУБУСА ОБЪЕКТИВА С ПЕРЕМЕННЫМ ФОКУСНЫМ РАССТОЯНИЕМ

... 1. Узел тубуса объектива с переменным фокусным расстоянием, содержащий:первое кольцо трансфокации, несущее группу первого объектива и содержащее первый выступ, выступающий наружу; направляющее кольцо, содержащее первую направляющую прорезь, проходящую в осевом направлении, через которую проходит первый выступ, и вторую направляющую прорезь, проходящую в направлении по окружности, и расположенное вокруг первого кольца трансфокации; второе кольцо трансфокации, несущее группу второго объектива и содержащее второй выступ, выступающий наружу, а также расположенное с возможностью перемещения в осевом направлении по отношению к первому кольцу трансфокации; первый цилиндр, содержащий направляющую канавку второго кольца трансфокации, выполненную во внутренней поверхности стенки первого цилиндра и в которую вставлен второй выступ; и третий выступ, выступающий наружу с тем, чтобы проходить через вторую направляющую прорезь, и расположенный между первым кольцом трансфокации и вторым кольцом трансфокации ...

АКСЕССУАР, УСТРОЙСТВО ЗАХВАТА ИЗОБРАЖЕНИЙ, НА КОТОРОМ ОН МОЖЕТ УСТАНАВЛИВАТЬСЯ, И СИСТЕМА КАМЕРЫ

Afokales Fernrohr mit Autofokus und Temperaturausgleich

SELBSTTAETIGES VERFAHREN ZUR BRENNPUNKTREGELUNG UND KAMERA MIT SELBSTTAETIGEN BRENNPUNKTREGLERN.

Linsentubus

Manuell und mittels Elektromotor betätigte Vorrichtung eines Kamaraobjektivs

Manuell und mittels Elektromotor betätigte Vorrichtung eines Kameraobjektivs, mit – einem Objektivtubus (14), der Linsen beweglich festhält, – einem Linsenbetätigungsring (17, 18), der an der Umfangsfläche des Objektivtubus (14) drehbar angeordnet ist, um die Linsen manuell zu bewegen, und der ein Außenzahnrad (19) aufweist, – einem Elektromotor (35) zum automatischen Bewegen der Linsen, – einem Schalter (20) für elektrische Betätigung, der ein Betätigungssteuersignal an den Elektromotor (35) zum Antrieb der Linsen ausgibt, – einem Kupplungsmechanismus (26, 27), der zwischen einem Getriebezahnrad (36) des Elektromotors (35) und dem Außenzahnrad (19) des Linsenbetätigungsrings (17, 18) vorgesehen ist, – um im eingerückten Zustand die Drehungen des Elektromotors (35) zum Bewegen der Linsen auf das Außenzahnrad (19) des Linsenbetätigungsrings (17, 18) zu übertragen und – um im ausgerückten Zustand den Elektromotor (35) vom Außenzahnrad (19) des Linsenbetätigungsrings (17, 18) zu trennen, und ...

Manueller Fokussiermechanismus eines Abbildungsgeräts und Abbildungsgerät

Ein manueller Fokussiermechanismus eines mit einem Objektivsystem mit Fokussierlinsengruppe ausgerüsteten Abbildungsgeräts zum Ändern der Bildebenenposition durch geradliniges Bewegen der Fokussierlinsengruppe in Richtung der optischen Achse hat einen Klickrastmechanismus, der ein Fokussierelement in einer von mehreren möglichen Klickrastpositionen an einem Halteelement verrastet. Der Bewegungsbetrag der Bildebenenposition in Richtung der optischen Achse pro Klickrastposition des Fokussierelements an dem Klickrastmechanismus liegt in dem Schärfentiefebereich des Objektivsystems. Es wird auch ein Abbildungsgerät mit einem solchen Fokussiermechanismus beschrieben.

Nockenmechanismus für einen Objektivtubus

Nockenmechanismus für einen Objektivtubus (10), mit: einem um eine optische Achse (O) drehbaren ersten Ringelement (12), einem zweiten Ringelement (17), das geradlinig längs der optischen Achse (O) drehfest geführt ist und ein optisches Element hält, mehreren Kurvennuten (C17), die an einem der beiden Ringelemente (12, 17) ausgebildet sind und die gleichen Referenzkurvendiagramme aufweisen, und mehreren Kurveneingriffsgliedern (17c), die an dem anderen der beiden Ringelemente (12, 17) ausgebildet sind und in die ihnen zugeordneten Kurvennuten greifen, wobei die Kurvennuten und die Kurveneingriffsglieder einen einzelnen Nut/Eingriffsglied-Satz mit einer Kurvennut (C17s) und einem zugehörigen Kurveneingriffsglied (17s) und mindestens eine Nut/Eingriffsglied-Gruppe umfassen, die einen vorderen Nut/Eingriffsglied-Satz (C17f1, 17cf1), und einen hinteren Nut/Eingriffsglied-Satz (C17r1, 17cr1) enthält, die in Richtung der optischen Achse versetzt zueinander angeordnet sind, wobei der einzelne ...

CAMERA

CODE PLATE MOUNTING DEVICE

Zoom lens barrel

Optical endoscope having a zoom lens

Apparatus 1 for use as an endoscope or borescope comprises an outer tube 2 having a distal end 3 which is insertable into an inaccessible location to be inspected and a proximal end 4 which is accessible to the user. A zoom lens is provided adjacent the distal end and is operable to focus an image with variable magnification at a focal plane within the outer tube. The zoom lens comprises a fixed objective lens 7 and two independently movable lenses 8, 13. An elongate viewing means 43 extends through the outer tube from a location at the focal plane to a location proximal of the proximal end. A cam operated actuating means 29, 21 is operable to move the movable lends to change magnification and to synchronously move the viewing means relative to the objective lens to compensate for movement of the focal plane. ...

Cam mechanism of a zoom lens

Lens driving device comprising piezoelectric actuator and guiding members

A lens driving device comprises a lens barrel 110 having at least one lens therein and provided with a friction member 112, a housing 120 for housing the lens barrel therein, an actuator 130 having a piezoelectric body disposed at an edge of the housing to apply a driving force, the piezoelectric body having at least one output member provided at one side thereof to be in contact with the friction member 112, a preload member 140 disposed between the edge of the housing and the actuator to apply an elastic force toward the lens barrel and a guiding part 150 disposed between the housing and the lens barrel to guide the lens barrel to move in an optical axis direction.

Surveillance camera with lens adjustment mechanism

Zoom lens barrel with focal length detector

Clutch Mechanism with Operating Motor for a Lens Barrel

A cam mechanism of a photographing lens

Stepwise zoom lens barrel

A zoom lens barrel 100 includes a first stationary cylinder 110 defining an optical axis O. The first stationary cylinder has a tubular wall surrounding a passage. A guiding and positioning slot 112 is defined in the tubular wall along the optical axis with a plurality of anchor points 114 and block points 115 alternately arranged on edges thereof. A first lens carrier 120 is held in the passage and has a driving pole. A second lens carrier 140 surrounds the tubular wall and has a retainer 145 and a first guiding slot 142. A second stationary cylinder 150 surrounds the second lens carrier and has a stopper 154 and a second guiding slot 152. A driving pole 122 passes through the guiding and positioning slot, the first and the second guiding slot and is positioned in one of the anchor points. A spring 130 is retained between the first stationary cylinder 110 and the second lens carrier 140 to push the second lens carrier moving with the first lens carrier till the retainer 145 is blocked ...

Zoom lens with liquid crystal or liquid lens and actuator

A zoom lens system capable of changing the zoom magnification correctly with a single actuator has a magnification changing lens (12) and a focusing lens (14) aligned on an optical axis (L), a liquid crystal lens (40) or a liquid lens, an actuator (44) for moving the magnification changing lens (12) and the focusing lens (14) along the optical axis (L), a cam mechanism (45) set between the actuator (44) and the magnification changing and focusing lenses (12) (14), and a driver that applies a voltage to the liquid crystal lens (40) to change the refractive index thereof. The cam mechanism (45) is driven by the actuator (44) to move the magnification changing lens (12) and the focusing lens (14) individually along the optical axis (L) of the zoom lens system, thereby changing the zoom magnification. The driver 46 adjusts the voltage applied to the liquid crystal lens (40) to effect fine adjustment of the focus position.

Zoom lens mechanism with cam operation

Improvements in or relating to control devices for optical objectives of variable equivalent focal length

... 1,080,011. Lens mounts; automatic speed control. RANK PRECISION INDUSTRIES Ltd., [trading as THE RANK ORGANISATION RANK TAYLOR HOBSON DIVISION]. Jan. 15, 1964 [Jan. 18, 1963], No.2281/63. Headings G2J and G3R. [Also in Division H2] In a zoom type objective the depth of focus varies appreciably with variation of focal length and accordingly the zoom control element is arranged to vary the effective transmission ratio, either continuously or in steps, between the focusing control element and the part of the objective controlled thereby to facilitate focusing. As shown applied to a television or other camera D, Fig. 1 the part F2 of the objective is moved for focusing by rotating a front part F1 by gearing H which is connected by a variable transmission to a hand wheel A. In the arrangement of Fig. 2, rotation of the hand wheel A causes rotation of a tacho-generator B, through gearing A1, the electrical output being amplified at J and fed to a reversible electric motor G whose output shaft ...

Cam mechanism of lens

Moulded internal gear, mould therefor, and zoom lens incorporating

A cylindrical product with an inner gear formed by injection molding, a mold for the cylindrical product, and a method of manufacturing the same are disclosed. The molded product may include a cylindrical base member, a spiral inner gear formed on an inner peripheral surface of the cylindrical base member so as to be inclined to a circumferential direction of the cylindrical base member, and a spiral relief groove formed on the inner peripheral surface of the cylindrical base member adjacent to the inner gear. The relief groove may be wider than a tooth width of the inner gear. The method of manufacturing the cylindrical product includes the steps of inserting a first cylindrical mold into a hole at the center of a second cylindrical mold, engaging a toothed portion on the first cylindrical mold with a spiral groove on the second cylindrical mold to provide a lower mold, mounting an upper mold thereon to form a space for forming the cylindrical product, injecting molten resin material into ...

IMPROVEMENTS IN OR RELATING TO CAM MECHANISMS

A zoom lens cam mechanism has two cam follower bearings mounted on a common shaft and arranged so that they engage against and roll on opposite sides of a cam groove or slot so as to reduce backlash.

Mounts for optical objectives

... 937,198. Objective mount; focusing. M. C. SCHNEIDER, and H. J. SCHNEIDER, [trading as JOS. SCHNEIDER & CO., OPTISCHE WERKE]. Dec. 15, 1961 [Dec. 15, 1960], No. 44976/61. Class 97 (1). Objective mount comprises on one hand hand and power controls for moving a lens axially in relation to another lens and on the other hand means for causing the power control to be uncoupled when the hand control is coupled up and vice versa. In the embodiment shown in Fig. 1 lenses 3, 3a are movably mounted in a rotatable tubular holder 2, and are guided by slots 2a, 2b. A focal length scale 19 is provided on tube 2. The tube is rotatable either manually by means of a handle 9 on a ring 10 which engages the tube or by a motor 4 connected by gears to a wheel 7 rotatable on tube 2. In the position shown, wheel 7 is coupled to tube 2 by a spring 8a in the tube engaging slot 7a on the wheel. Ring 10 is locked in an inoperative position by means of a slot 16 thereon engaging a pin 17 in another stationary tube ...

Zoom compact camera with flexible circuit board

A zoom compact camera has a first barrel (20), which carries a shutter unit (40), arranged to telescope relative to a second barrel (19). A linear guide barrel (17) moves integrally with the second barrel (19) and is provided on the inner surface with a lead-in groove (17h). The rear of the lead-in groove (17h) includes a through hole (17i) that passes through the linear guide barrel 17. A flexible printed circuit board (6) for electrically connecting a control unit to said shutter unit is provided. The flexible printed circuit board (6) extends around the rear of the first barrel (20), extends forwardly inside the lead-in groove (17h), extends around the front end of the lead-in groove (17h), extends rearwardly along an outer face of the linear guide barrel (17), and then extends through the through hole (17i) to the inner face of the linear guide barrel (17).

CAM MECHANISMS

SLIP CLUTCH MECHANISM

LENS MOVING APPARATUS

ZOOM LENS BARREL

LENS MOUNT ASSEMBLY FOR FOCUSABLE VARIABLE FOCAL LENGTH LENS

... 1362504 Lens mounts BELL & HOWELL CO 30 Oct 1972 [2 Nov 1971] 49864/72 Heading G2J A lens mount for a zoom lens comprises two barrels 16, 24 defining at least two cam surfaces 20, 40, a lens carrier 48 having cam followers 54 and a driving stud 56, and a sleeve 90 cooperating with the stud 56 for rotatable and axial positioning of the carrier 48.

Zoom compact camera

Motor and apparatus using the same

ZOOM LENS BARREL

Mechanism for controlling position of optical element

Inner gear,cylindrical product with inner gear,method of manufacturing and molds therefor

LENS SYSTEMS

ZOOM LENSES

... 1469291 Zoom lenses CANON KK 22 March 1974 [23 March 1973] 12803/74 Heading G2J A zoom lens system having a front lens assembly compressing a focusing lens group G 1 -G 4 , a variator G 5 -G 7 , and a compensator G 8 -G 9 , and a rear lens assembly comprising a compensator B, a variator C and a fixed relay system D, is characterized in that the four movable lens groups are supported in lens mounts which are moved along the optical axis on rotation of a cam barrel 101; the four cam grooves 4', 5', 6', 7' are arranged to impart axial movement to the groups G 5 -G 7 , G 8 -G 9 followed by axial movement of the rear groups B, C. A key, 118, adjustably positioned in an axially extending slot 119 of the barrel 101 cooperates with a cam slot in an inner guide sleeve (102), the setting of the key 118 in the slot 119 determining the degree and direction of rotation of the cam barrel 101 and therefore the range of zooming. A diaphragm aperture is controlled through a member 124 which is coupled to ...

CONTROL EQUIPMENT FOR OBJECTIVES WITH CHANGE OF CASH FOCAL LENGTH

STEUEREINRICHTUNG FUER OBJEKTIVE MIT VERAENDERBARER BRENNWEITE

PANKRATISCHES OBJEKTIV FUER EINE FOTOGRAFISCHE KAMERA

ADJUSTMENT DEVICE FOR THE FOCUSING OF OBJECTIVES

CONTROL EQUIPMENT AT PANKRATI OBJECTIVES

PANKRATI OBJECTIVE FOR A PHOTOGRAPHIC CAMERA

DRIVE FOR A ZOOM.

ZOOM

OPTICAL SYSTEM

Viewing optic with an integrated display system

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system.

ZOOM LENS BARREL AND CAMERA INCORPORATING SUCH BARREL

ZOOM LENS BARREL AND CAMERA INCORPORATING SUCH BARREL

ENDOSCOPIC CAMERA COMPONENT MANUFACTURING METHOD

The invention provides an endoscope having a lens holder, wherein the lens holder comprises a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which comprises the steps of molding a metal blank by a MIM process, wherein the metal blank is "near net shape" and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.

AXIALLY EXTENDING ZOOM LENS MOUNT

A ZOOM/FOCUS APPARATUS AND ZOOM LENS ASSEMBLY

Disclosed are a zoom/focus device and a corresponding zoom lens, wherein the zoom/focus device comprises a first focus lens barrel (101), a first zoom lens barrel (102), a first ultrasonic motor and a second ultrasonic motor, which are all disposed coaxially; wherein the first focus lens barrel (101) and the first zoom lens barrel (102) are immobilized in a radial direction, and the first zoom lens barrel (102) has a larger diameter than that of the first focus lens barrel (101); the two ultrasonic motors are respectively used for driving the two lens barrels (101, 102) to move axially by virtue of the rotation of rotors (103, 104). The zoom lens required to stretch out and draw back is disposed on the periphery of the focus lens barrel, and the two lens barrels are driven by the ultrasonic motors, and in this way extension and retraction of the zoom lens as well as zoom position adjustment can be realized simultaneously; in addition, the zoom lens barrel is suitable for the placement of ...

VARIABLE RESOLUTION LIGHT RADAR SYSTEM

A method and apparatus for scanning a target region. A divergence of a laser beam during scanning of the target region is set. The laser beam is directed to different locations in the target region at a scan angle. The scan angle of the laser beam is set while the laser beam is directed to the different locations. Changing at least one of the divergence or an amount of change in the scan angle during scanning of the target region changes a resolution for the target region.

Tube porte-objectif à longue portée pour appareil photographique.

Fassung für photographische oder kinematographische Objektive zum Ändern der Brennweite

Objectif à focale varible

Objectif à focale variable

Objectif optique

Einrichtung an photographischen oder kinematographischen Objektiven zur Bewegungssteuerung axial verschiebbarer optischer Glieder

Monture pour objectif à focale variable

Einrichtung zum Einstellen von Objektiven an Fernsehaufnahmegeräten für industrielle Zwecke

Dispositif de commande pour un objectif optique à distance focale variable

Vorrichtung mit verschiebbaren optischen Gliedern für Objektive mit veränderbarer Brennweite

Einstellgetriebe für Objektive

Dispositif de commande et de réglage pour un objectif optique à longueur focale variable

Dispositif pour provoquer un déplacement entre deux pièces

Vorrichtung mit in Richtung ihrer optischen Achse verschiebbaren optischen Gliedern für Objektive veränderbarer Brennweite

Verstelleinrichtung für Objektive veränderlicher Brennweite

PANKRATI OBJECTIVE FOR A PHOTOGRAPHIC CAMERA.

Varifokalobjektiv for a photographic photocopying apparatus.

Projection apparatus and light source regulating method thereof

A projection apparatus comprises a digital micro-mirror element, a light source, a lens, a photoelectric conversion element, a judgment element and a regulating module, when being switched to a first operating state, the digital micro-mirror element reflects light beams, emitted by the light source, to the lens. When being switched to a second operating state, the digital micro-mirror element reflects the light beams to the photoelectric conversion element. The photoelectric conversion element generates a signal value according to light intensity of the light beams. The judgment element is electrically connected with the photoelectric conversion element and used for comparing the signal vale with a preset value. If the signal value is smaller than the preset value, the judgment element generates a driving signal value. The regulating module is electrically connected with the judgment element and is coupled with the light source. The driving signal value is used for driving the regulating ...

Improvements with the control devices of optical objectives remotely focal variable

COMBINAISON DE LENTILLES A FOCALE VARIABLE

UNE COMBINAISON DE LENTILLES INFRAROUGES A FOCALE VARIABLE 11 COMPREND TROIS LENTILLES E, F ET G. LES LENTILLES F ET E SONT MONTEES SUR DES MONTURES MOBILES 21, 22 QUI PEUVENT ETRE DEPLACEES AXIALEMENT PAR DES MOTEURS ELECTRIQUES 23, 25. CES MOTEURS FONCTIONNENT SOUS LA DEPENDANCE DE MOYENS DE CALCUL 28 QUI TIENNENT COMPTE DES PARAMETRES OPTIQUES DES LENTILLES, DE LA DISTANCE FOCALE ET DU FACTEUR DE GROSSISSEMENT DEMANDES ET DE LA TEMPERATURE AMBIANTE.

ZOOM LENS BARREL.

Tube d'objectif zoom

Un tube d'objectif zoom comporte des premier et deuxième groupes de lentilles 12, 17 supportés par des cadres de lentille respectifs et un mécanisme de came qui commande une position axiale d'au moins un des groupes de lentilles. Le mécanisme de came comprend une broche de guidage 21 qui est placée sur le cadre de lentille du groupe de lentilles 12, 17 associé pour être commandée par le mécanisme de came, un anneau de came 24 qui est pourvu sur sa face d'extrémité d'une surface de came 25 avec laquelle la broche de guidage 21 vient en contact et un mécanisme de rotation d'anneau de came 24 qui place l'anneau de came 24 en rotation.

Mould moulding by injection of a cylindrical product with internal gear.

COMBINATION OF LENSES HAS FOCAL VARIABLE

ADVANCED ROTATING MECHANISM.

MECHANISM Of DRIVE OF LENSES

Masque intercepteur de lumière pour lentille

Dans une unité d'objectif pour appareil photographique comportant une pluralité de lentilles L1, L2 espacées et une monture de support de lentilles 21, 28 qui supporte les lentilles L1, L2 de sorte que l'image d'un sujet devant être photographié formée par les lentilles L1, L2 est focalisée sur un plan d'image, un masque intercepteur de lumière 30 est sensiblement analogue au plan d'image et est formé solidairement avec la monture de support de lentilles 21, 28.

Tube lens-holder with long range for camera

PROCEDE DE FABRICATION D'UN TUBE DE REGLAGE D'OBJECTIF ET TUBE DE REGLAGE FABRIQUE PAR CE PROCEDE

Procédé de fabrication d'un tube de réglage d'objectif comportant une enveloppe à paroi mince, sur le côté intérieur de laquelle est prévue au moins une came de réglage en forme de rainure de préférence à pas irrégulier. Un tube auxiliaire 1 présente également une enveloppe à paroi mince, dont la surface extérieure porte la came de réglage réalisée sous la forme d'un profil de came en relief 2 est fixé sur un porte-pièce de préférence conique; le tube auxiliaire 1 est ensuite enveloppé par injection d'une matière plastique dans une machine à mouler par injection; enfin, le tube auxiliaire 1 est séparé du tube de réglage 11 d'une manière connue en soi. Applications optiques.

Adjusting device of focal point for objective zoom

Appareil photo (10) comportant une pluralité de groupes de lentilles mobiles (11, 12, 13) qui constituent un objectif zoom, et un dispositif qui est utilisé pour ajuster la position du groupe de lentilles le plus en arrière (13) de la pluralité de groupes de lentilles mobiles dans la direction de l'axe optique, lors de l'assemblage de l'objectif zoom, de sorte qu'un point focal de l'objectif zoom ne dévie pas lors du changement de plan.

Cam mechanism in zoom lens

Device has removable optical elements for objectives remotely focal variable.

BARREL Of OBJECTIVE ZOOM MOTORIZES.

OBJECTIVE ZOOM HAS FOCUSING INTERNAL

L'invention concerne un objectif zoom à focalisation interne. Elle se rapporte à un objectif qui comprend un premier barillet (24) à lentilles de fixation dans lequel une rampe hélicoïdale (27) permet l'avance et le recul d'un groupe mobile (14) de lentilles de focalisation, un barillet (21) à lentilles de focalisation qui supporte le groupe mobile (14) et qui se raccorde au premier barillet (24), et un second barillet (26) à lentilles de fixation dans lequel une monture fixe (20) est fixée en un point, et dans lequel le second barillet (26) se déforme mais la rampe hélicoïdale (27) du premier barillet (24) ne se déforme pas lorsque le pare-soleil (60) est fixé au second barillet (26) à lentilles de fixation. Application aux objectifs zoom de télévision.

ROTARY MECHANISM OF ORDERING Of ADVANCE

Mécanisme rotatif de commande d'avancement comprenant: des éléments annulaires intérieur (16) et extérieur (12) en prise avec des vis à filets multiples mâle (22) et femelle (12a); une plage d'engrènement (L) sur la surface périphérique extérieure de l'élément annulaire intérieur (16); plusieurs engrenages inclinés (23), formés sur la plage d'engrènement (L); plusieurs arbres de pignons (33, 34) parallèles à l'axe des éléments annulaires intérieur et extérieur (16, 12) qui font tourner l'élément annulaire intérieur (16) par rapport à l'élément annulaire extérieur (12); plusieurs pignons (30a, 30b, 30c, 30d, 31a, 31b, 31c, 31d) distincts disposés sur chaque arbre de pignons (33, 34), les pignons ayant une faible largeur qui peut engrener de manière successive avec les engrenages inclinés (23) en fonction de la position axiale de l'élément annulaire intérieur (16); et un moyen (32) pour entraîner les arbres de pignons (33, 34) dans le même sens; dans lequel les arbres de pignons (33, 34) ...

MOUNTING FOR A ZOOM LENS

IMAGE INPUT MODULE ADJUSTING DEVICE AND IMAGE INPUT MODULE ADJUSTING METHOD

ELECTRONIC DEVICE WITH INFRARED OPTICAL DEVICE AND METHOD OF CONTROLLING INFRARED OPTICAL DEVICE

The present invention relates to an electronic device with an infrared optical device. The electronic device with the infrared optical device of the present invention comprises: an infrared ray emitting unit configured to emit light in an infrared band; an infrared ray receiving unit configured to detect light in a wavelength band of the light emitted from the infrared ray emitting unit; a signal processing unit configured to process a signal generated by the infrared ray receiving unit; a camera module including an image sensor configured to detect light in a visible light band, a lens, and a focusing module configured to move the lens along an optical axis to focus on a subject; and a control unit configured to control the infrared ray emitting unit, the infrared ray receiving unit, and the camera module. If a selected operation mode is an iris recognition mode, the infrared ray emitting unit illuminates an iris with light and the infrared light receiving unit detects the light reflected ...

Imaging device

An imaging device is provided that comprises a movement detection component configured to detect movement of the imaging device based on a force imparted to the imaging device, an imaging component configured to produce image data by capturing a subject image, a movement vector detection component configured to detect a movement vector based on a plurality of sets of image data produced by the imaging component, and a three-dimensional NR component configured to reduce a noise included in first image data produced by the imaging component, based on second image data produced earlier than the first image data, wherein the three-dimensional NR component is configured to decide whether to correct the second image data in response to the detection result of the movement vector detection component, based on both the detection result of the movement detection component and the detection result of the movement vector detection component.

Imaging apparatus

A lens barrel holding frame whose back surface wall is positioned at a position on the reflection optical element, in a state before moving to the retraction position, opposite to the lens unit in a direction of the first optical axis, wherein a through hole, through which the lens unit can retract along the first optical axis, is formed on the back surface wall of the lens barrel holding frame.

Lens barrel having cam cylinder with cam groove

A lens barrel includes a lens holding frame 102 that holds a lens 101 and that includes at least three follower pins 103, 104 , and 102 b , a guide cylinder 700 that linearly guides the lens holding frame 102 in an optical axis direction, and a cam cylinder 800 that rotates around an optical axis to move the lens holding frame 102 in the optical axis direction. At least three different kinds of cam grooves 800 a, 800 b , and 800 c are formed on the cam cylinder 800 , and at least two cam grooves of the cam grooves intersect with each other at a predetermined intersection 800 t . When one of the at least three follower pins is positioned at the intersection, the other at least two follower pins engage with corresponding cam grooves of the at least three different kinds of cam grooves in a compression direction.

Macro-lens system and photographing apparatus having the same

A macro-lens system and a photographing apparatus having the macro-lens system. The macro-lens system includes: first, second, third, fourth, and fifth lens groups which are arranged in order from an object side to an image side, wherein the first lens group has a positive refractive power and is fixed during focusing, the second lens group has a negative refractive power and is moved during focusing, the third lens group has a positive refractive power and is fixed during focusing, the fourth lens group has a positive refractive power and is moved during focusing, and the fifth lens group has a negative refractive power.

Variable magnification device and telescopic sight using the same

The present invention relates to a variable magnification device and a telescopic sight using the same, and more particularly, to a variable magnification device which is capable of easily adjusting a magnification of a telescopic sight. The variable magnification device includes: a rotation bunch which has a ring shape conforming to the circumference of a barrel of a telescopic sight and includes a bent end formed on one side of the circumference of the rotation bunch; and a rod which is connected to the bent end and is bendable in the longitudinal direction of the barrel. The magnification of the telescopic sight can be adjusted with an aiming posture maintained, thereby allowing immediate hit on a target. In addition, a leverage effect can be used to easily and finely adjust the magnification of the telescopic sight with one hand, thereby preventing distortion of an aiming posture as maximally as possible.

Focusing device, image pick-up apparatus, and control method

A focusing device includes a first focus-position determining unit configured to determine a focus position based on a change in a radio-frequency component in an image signal obtained with movement of a focusing lens, a second focus-position determining unit configured to determine a focus position by using a different process from a process performed by the first focus-position determining unit, a mode setting unit configured to select at least a first mode which uses a result with the first focusing-position determining unit together with the second focusing-position determining unit or a second mode which uses a result with the first focus-position determining unit without the second focus-position determining unit, and a control unit configured to control driving of the focusing lens according to selection by the mode setting unit such that the focusing lens is driven in the first mode at a higher speed than in the second mode.

Lens barrel and image pickup apparatus

A lens barrel includes a first cylinder, a second cylinder configured to rotate around an optical axis relative to the first cylinder and to move a lens holding frame holding a lens in an optical axis direction, a force unit arranged outside of the second cylinder, a force relay member arranged outside of the second cylinder and configured to contact the force unit, a first roller fixed to the force relay unit and configured to contact a first surface of the second cylinder, and to transmit a force to the first surface of the second cylinder, the force being applied by the force unit and relayed by the force relay unit; and a second roller fixed to the first cylinder, and configured to contact a second surface inside of the second cylinder, and to restrict a movement of the second cylinder in the optical axis direction by the force.

Mems actuator device

A method for making an actuator device includes providing a wafer comprising a layer of an electrically conductive material and forming a plurality of rotationally symmetrical dies in the electrically conductive material, each die including a plurality of radial tabs and complementarily sized radial recesses arranged in alternating fashion and at equal angular increments around the circumfery of the die. To maximize the use of available wafer space, the dies are arranged in a pattern on the wafer in which each die is rotated relative to adjacent dies through an angle of 360 degrees divided by twice the number of tabs or recesses on the die and, except for dies located at an outer periphery of the wafer, each die is disposed in edge-to-edge near abutment with an adjacent die and each tab of each die is nested within a complementary recess of an adjacent die.

Capillary actuator deployment

A method for making an actuator includes forming a substantially planar actuator device of an electrically conductive material, the device incorporating an outer frame, a fixed frame attached to the outer frame, a moveable frame disposed parallel to the fixed frame, a motion control flexure coupling the moveable frame to the outer frame for coplanar, rectilinear movement relative to the outer frame and the fixed frame, an actuator incorporating a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moveable frame, moving the moveable frame to a deployed position that is coplanar with, parallel to and spaced a selected distance apart from the fixed frame, and fixing the moveable frame at the deployed position for substantially rectilinear, perpendicular movement relative to the fixed frame.

Lens Positioning Unit Of Optical System

According to example embodiments, a lens positioning unit includes a fixed structure, a monolithic flexure hinge structure, any one of upper and lower portions of which is provided with a lens mount on which a lens is mounted and the other portion of which is secured to the fixed structure, and an input unit rotatably coupled to the fixed structure, the input unit serving to convert rotational motion into vertical translational motion so as to transmit the vertical translational motion to the upper or lower portion of the monolithic flexure hinge structure provided with the lens mount.

Lens apparatus and camera system including the same

A lens apparatus includes a zoom, a focus, a zoom position control signal generator, a focus position control signal generator, a first calculator for calculating a present angle of field from zoom and focus positions, a second calculator for calculating a second angle of field based on a zoom control signal and a focus position, a third calculator for calculating a third angle of field based on zoom and focus position control signals, used when the second calculation unit calculates, a base angle-of-field determinater for determining a sum of the present angle of field and a value obtained by subtracting the third angle of field from the second angle of field, as a base angle of field, and a zoom position control determinater for determining a zoom position to a position of the zoom lens corresponding to the base angle of field to which the zoom lens is driven.

Telescope with lens and eyepiece module

A telescope made up of mutually connectable modules, which telescope comprises at least a lens module and an eyepiece module, and the lens module and eyepiece module each have a connection interface for connecting the modules, wherein an eyepiece and a zoom unit for changing the image magnification and a unit for reversing the image are integrated in the eyepiece module.

Lens drive mechanism, lens barrel, and imaging apparatus

A lens drive mechanism includes: a lens holding frame that holds a lens and has a guided portion and a nut support; a nut member so supported by the nut support that the nut member pivotally moves around an optical axis of the lens; a lead screw that engages with the nut member and rotates around an axis of the lead screw to move the lens holding frame; and a guide unit that is inserted into the guided portion of the lens holding frame and guides the lens holding frame in the optical axis direction when the lead screw rotates and moves the lens holding frame. The guide unit, the lead screw, and the lens holding frame are accommodated in and attached to a lens barrel housing having an insertion opening, and the lens holding frame is inserted through the insertion opening and accommodated in the lens barrel housing.

Compact Camera Module with Zoom and Auto-Focus Actuators Sharing the Same Rotating Annular Magnet with Alternating Thick and Thin Poles

A compact camera modules has first, second, and third lens groups that move along an optical axis. A stepping motor is centered on the optical axis rather than offset from the optical axis. The motor has two coils that are fixed in place and a shared rotating magnet. The magnet is attached to a rotating guide that has slots to move the first and second lens groups as it rotates. The two coils are alternately energized rotate the magnet, the rotating guide, and to move the first and second lens groups for zoom. The magnet has alternating thicker and thinner segments of opposite polarity. The thicker segments exert a greater force on an autofocus coil that is energized to move the third lens for the autofocus function. The same shared rotating magnet is used for both zoom and autofocus functions. A more compact design is possible using a shared magnet.

Projection device

A projection device including a case, a zoom lens module, a focus lever, and a linkage mechanism is provided. The case defines a guiding slot. The zoom lens module is disposed in the case and is configured for projecting an image. The focus lever is disposed in the case and is connected to the zoom lens module. The focus lever is perpendicular to a lengthening direction of a center axis of the zoom lens module. The linkage mechanism includes an adjusting rod having a connecting portion and an operating portion. The connecting portion is connected to the focus lever and is configured for rotating relative to the focus lever and moving along the lengthening direction of the focus lever. The operating portion extends out of the case and is configured for being controlled to move relative to the case along a lengthening direction of the guiding slot.

Infrared Lens Unit and Infrared Camera System Provided with the Infrared Lens Unit

An object of the present invention is to provide an infrared lens unit having a high optical quality and an infrared camera system provided with the infrared lens unit. An infrared lens unit according to the present invention to achieve the object is the infrared lens unit to be attached to an infrared camera-module characterized in comprising a data memory for storing lens data and an image focusing condition is controlled according to the data stored in the data memory and temperature data in the infrared lens unit.

Electromagnetic driving device

An electromagnetic driving device which is defined with an axis and comprises: a casing, a driven unit and an electromagnetic driving module. The casing has an inner compartment. The driven unit is received in the compartment and is guided by a guiding mechanism such that the driven unit is movable alone the axis inside the casing. The electromagnetic driving module comprises: a plurality of permanent magnets inside the casing, at least one magnetic member fixed to an outer surface of the driven unit, and a coil located between the magnetic member and permanent magnets. When no electric power is provided to the coil, the magnetic forcing between the permanent magnets and magnetic member will result in a friction force to the guiding mechanism, so as to keep the driven unit at its current position inside the compartment.

Image pickup apparatus having improved contrast autofocus accuracy

An image pickup apparatus includes an image pickup device that includes a plurality of focus detection pixels, a phase difference detection type of a first focus detector, a contrast detection type of a second focus detector, and a controller. The controller is configured to allow the second focus detector to continue the focus detection when the shift amount detected by the first focus detector is larger than a threshold even when the second focus detector detects the lens position corresponding to the peak of the contrast value, and to move the image pickup lens to a lens position that provides a peak of a contrast value detected by the second focus detector when the shift amount is the threshold or smaller.

Lens barrel

A lens barrel includes a fixing frame provided with cam grooves formed in an inner circumferential surface of the fixing frame, and a drive frame provided with cam followers formed on an outer circumferential surface of the drive frame and a plurality of engaging teeth to the outer circumferential surface of the drive frame, located on substantially the same circumference as the cam followers. With the drive frame incorporated in the fixing frame, the cam followers are fitted in the cam grooves, drive force is transmitted via the engaging teeth, and the drive frame can move relative to the fixing frame in the optical axis direction of a lens as the cam followers move along the cam grooves. In this lens barrel, cam followers are less likely to come out of the cam grooves.

Projection apparatus and light source adjusting method thereof

A projection apparatus including a digital micro mirror device (DMD), a light source, a lens, a photoelectric conversion device, a decision device and an adjustment module is provided. When the DMD is switched to a first operating state, the DMD reflects a light beam emitted by the light source to the lens. When the DMD is switched to a second operating state, the DMD reflects the light beam to the photoelectric conversion device. The photoelectric conversion device generates a signal value according to a light intensity of the light beam. The decision device compares the signal value with a predetermined value. When the signal value is smaller than the predetermined value, the decision device generates a driving signal value. The driving signal value is used for driving the adjustment module to sequentially adjust a position of the light source along a plurality of axes.

Lens barrel that performs photographic lens extension and retraction, image pickup apparatus including lens barrel

A lens barrel which can be extended over a larger amount without increasing the length of the lens barrel in a collapsed state. A movable barrel having a cam formed on an inner periphery thereof is movable in an optical axis direction. The movable barrel is extended toward an object in a shooting state, and is housed in a collapsed state. A lens holding frame holds a first lens group disposed closest to an object side of lens groups arranged in the optical axis direction. The lens holding frame including a fitting portion for slidably fitting to the cam is capable of moving in the optical axis direction, following a profile line of the cam. Barrier blades are disposed on the object side of the first lens group. A barrier drive ring is connected to the lens holding frame is rotatable to open and close the barrier blades.

Image pickup apparatus, solid-state image pickup element, and image pickup method

A solid-state image pickup device includes a first unit to convert light into an electrical signal and a second unit to convert light into an electrical signal. The first unit includes a first lens and a first pair of light receiving elements to receive light from the first lens. The second unit includes a second lens and a second pair of light receiving elements to receive light from the second lens. A profile of the second pair of light receiving elements is different in plan view than a profile of the first pair of light receiving elements.

Lens barrel and imaging device

The lens barrel includes a first frame, a second frame configured to be rotatably supported by the first frame, a drive actuator that is disposed on the inside of the second frame, and a transmission mechanism disposed on the inside of the second frame and configured to transmit the drive force of the drive actuator to the second frame. The imaging device includes the above-mentioned lens barrel and an imaging element that converts an optical image formed by this lens barrel into image data.

Lens barrel and imaging apparatus

Disclosed herein is a lens barrel, including: plural barrel cases having holding frame portions holding optical members, respectively, and coupled to one another in a predetermined direction; and plural abutment portions made to abut against one another in a state in which the plural barrel cases are coupled to the holding frame portions, respectively, wherein the abutment portion of at least one of the plural barrel cases coupled to one another is formed in a shape protruding to the abutment portion side of the other of the plural barrel cases coupled to one another.

Camera system

In a camera system according to the present invention, a lens controller obtains an exposure synchronizing signal that is generated by a camera controller from a camera body, causes a configuration formed of a first encoder, a second encoder and a counter to detect the position of a focus lens according to the obtained exposure synchronizing signal, and notifies the camera body of the detected position of the focus lens. The camera controller associates the position of the focus lens or the mechanism member obtained from the lens controller with an AF evaluation value based on the exposure synchronizing signal, and controls an autofocus operation of the camera system based on the position and AF evaluation value that are associated with each other. With this configuration, it is possible to improve the accuracy of an autofocus operation with a contrast system.

Optical apparatus performing position control of focus lens unit

An optical apparatus includes a zoom optical system including a focus lens unit, an operation portion configured to manually and mechanically change a focal length of the zoom optical system, and a controller configured to control the focus lens unit so as to move along a track depending on an object distance in an operation of the operation portion. The controller moves the focus lens unit to a second position that is different from a first position that is a position of the focus lens unit in disconnecting a power when a first focal length that is a focal length of the zoom optical system in disconnecting the power is different from a second focal length that is a focal length of the zoom optical system in reconnecting the power.

Sight Device and Inner Tube with Light-Extinction Structure

A sight device with a light-extinction structure includes a zooming outer tube, an inner tube and a zooming group. The inner tube is disposed coaxially in the zooming outer tube, and the zooming group is composed by a plurality of lenses, and the zooming group is disposed inside the inner tube and is controlled by the zooming outer tube, and thus the lenses are allowed to move inside the inner tube for adapting a focal length of the zooming group.

Camera Lens and Image Capturing Device Using the Same

A camera lens and an image capturing device using the same. The camera lens comprises a lens-barrel fixing-base, a driving barrel, a focusing lens-barrel and an elastic member. The lens-barrel fixing-base has a hollow part, which has a first supporting part. The first supporting part has a connecting part. The driving barrel has a groove formed at an inner wall of the driving barrel. The focusing lens-barrel has a guiding part, which is inserted into the groove for allowing the focusing lens-barrel to be axially moved in the driving barrel. The focusing lens-barrel has a second supporting part. The elastic member is a hollow-ring structure setting between the lens-barrel fixing-base and the focusing lens-barrel. One end of the elastic member is positioned against the first supporting part and the another end of the elastic member is positioned against the second supporting part.

Piezoelectric driving module for lens

A piezoelectric driving module for lens, which defines a photographic optical axis and includes a housing, a driven object (e.g., a lens module), a piezo member, and a rubbing element. The piezo member and the rubbing element are provided in the housing and located on two lateral sides of the driven object respectively. The piezo member drives the driven object by friction so that the driven object can be moved along the photographic optical axis until focused. Meanwhile, a predetermined frictional force is generated between the rubbing element and the driven object to reduce a gravity-induced speed difference between forward and backward movements of the driven object along the photographic optical axis.

LENS BARREL

A lens barrel includes a zoom optical system in which a focal distance is changeable; a first group frame moving together with the first lens group; and first and second cam mechanisms transmitting drive force to the first group frame. In a zoom region, each of a first group cam groove and a cam slot includes a first section, a second section which adjoins the first section and has an absolute value of a gradient smaller than that of the first section, and the third section which adjoins the second section and has the absolute value of the gradient larger than that of the second section, and in which a sign of the gradient is the same as that of the first section. A distance from an imaging surface to the first group frame in the optical axis direction has a local minimum in the second section. 1. A lens barrel , comprising:a zoom optical system including a plurality of lens groups each having one or more lenses, in which a focal distance is changeable between a wide-angle end and a tele end by moving the lens groups along an optical axis;a first frame moving together with a first lens group of the plurality of lens groups and which is closest to an object in the zoom optical system; andfirst and second cam mechanisms transmitting drive force to the first frame,wherein each of the first and second cam mechanisms includes a cam follower and a cam groove engaged with the cam follower, the cam groove including a section in which the cam follower moves when the focal distance is changed between the wide-angle end and the tele end,the section of at least one of the cam grooves of the first and second cam mechanisms includes a first section which has a predetermined gradient to a circumferential direction about the optical axis, a second section which adjoins the first section and has an absolute value of a gradient smaller than that of the first section, and a third section which adjoins the second section and has an absolute value of a gradient larger than that of the ...

Lens structure

A lens structure is provided. The lens structure comprises a first barrel, at least one guider and a second barrel. The first barrel has a first groove, and comprises a first pin. The guider is slidably set to the first groove. The guider comprises a main body, a first limiting portion and a second limit portion. The main body has a first end and a second end opposite to the first end. The first limiting portion is connected to the main body and located between the first end and the second end. The second limiting portion is connected to the second end. The second barrel moves with the guider through the first limiting portion and has a second groove to which the first pin of the first barrel is set.

LENS BARREL AND LENS UNIT

A lens barrel and a lens unit each include a lens drive operation member that drives a lens holding member holding a movable lens group, in an axial direction by a rotation operation of a rotating member. This lens drive operation member has a body disposed so as to be rotatable about an axis of a fixed barrel and so as not to be movable in the axial direction and connected to the rotating member by a connecting portion, and the connecting portion includes at least two connecting members, that is, a first connecting member formed integrally with the body, and a second connecting member formed separately from the body. 1. A lens barrel comprising:a fixed barrel;a lens holder holding a movable lens group, and disposed on the fixed barrel so as to be movable in an axial direction of the fixed barrel;a cylindrical rotating member disposed so as to be rotatable with respect to the fixed barrel; anda lens drive operation member connecting the lens holder and the rotating member, and driving the lens holder in the axial direction by rotation operation of the rotating member, whereinthe lens drive operation member has a cylindrical drive operation member body connected to the rotating member, and a connecting portion connecting the drive operation member body and the rotating member,the drive operation member body is disposed so as to be rotatable about an axis of the fixed barrel and so as not to be movable in the axial direction, and drives the lens holder in the axial direction when rotated about the axis of the fixed barrel,the connecting portion includes a first connecting member and a second connecting member disposed to have a distance therebetween in a circumferential direction of the fixed barrel,the first connecting member is formed integrally with the drive operation member body, andthe second connecting member is a member formed separately from the drive operation member body, and is held by the drive operation member so as to be capable of adjusting a holding ...

Imaging device holding unit and lens barrel each having holder member for imaging device package, and image pickup apparatus having holding unit or lens barrel

A lens barrel having a holder member that holds an imaging device package and allowing one or more structure members other than the holder member to be disposed around the package. The imaging device package in which an imaging device is housed is held by the holder member having planar portions that are disposed parallel to the package and that are coupled to each other through raised bent portions. The raised bent portions of the holder member are disposed so as to be overlapped with and inside the package as seen from an optical axis direction, thereby obtaining a free space around the package, in which one or more structural members other than the holder member can be disposed.

Piezoelectric actuator

A piezoelectric actuator for driving a lens unit along an optical axis is disclosed. The piezoelectric actuator includes a fixed member, a movable member movably received in the fixed member, a magnetic plate fixed on the fixed member, a magnet fixed on the movable member, a piezoelectric member and a circuit board. The movable member includes a contacting portion. The magnet is aligned with the magnetic plate along a direction substantially perpendicular to the optical axis. The piezoelectric member is fixed on the fixed member and contacts on the contacting portion of the movable member for driving the movable member to move along the optical axis. The circuit board provides voltages to the piezoelectric member.

Lens with single detection member shared to perform focusing and zooming operations and reset method thereof

A lens with a single detection member shared to perform focusing and zooming operations includes a base, a detection member, a focusing unit and a zooming unit. The focusing unit includes a focusing group frame and a focusing detection board. The zooming unit includes a zooming group frame and a zooming detection board. In a reset method, a signal read from the detection member is a light-passing signal or a light-shielding signal, the focusing group frame and the zooming group frame are in any position. With the focusing group frame of the focusing unit and the zooming group frame of the zooming unit, the any position of the focusing group frame and the zooming group frame can be determined, and then the focusing group frame and the zooming group frame are driven to reset as a predetermined standby position. 1. A lens with a single detection member shared to perform focusing and zooming operations , comprising:a base;a detection member installed on the base;a focusing unit comprising a focusing group frame slidably installed on the base, a focusing detection board formed on the focusing group frame and corresponding to the detection member, and a focusing driving member installed on the base and utilized to drive the focusing group frame to move between a long-shot end and a close-shot end; anda zooming unit comprising a zooming group frame slidably installed on the base and located above the focusing group frame of the focusing unit, a zooming detection board formed on the zooming group frame and corresponding to the detection member, and a zooming driving member installed on the base and utilized to drive the zooming group frame to move between a wide-angle end and a telephoto end.2. The lens with the single detection member shared to perform focusing and zooming operations as claimed in claim 1 , wherein the focusing driving member of the focusing unit is a motor claim 1 , and the focusing unit further comprises a screw rod claim 1 , a screw nut claim 1 , a ...

Lens Barrel For Zoom Lens System

The lens barrel assembly suitable for a zoom lens comprises a pedestal barrel member secured to a mount member; a fixed barrel member secured in position closer to an object to the pedestal barrel member and having longitudinal grooves defined therein; a focus cam barrel member, a focus interlocking plate, and a first cam barrel member, each disposed inside the fixed barrel member; a second cam barrel member disposed inside any of the focus cam barrel member, the focus interlocking plate, and the first cam barrel member; a third cam barrel member disposed outside the fixed barrel member; an automatic focusing unit secured to an outer surface of the pedestal barrel member; and an anti-vibration unit disposed inside the pedestal barrel member and at least partially or completely overlapping the automatic focusing unit when the lens barrel assembly takes the position at the wide-angle end. 1. A lens barrel assembly suitable for a zoom lens , comprisinga pedestal barrel member secured to a mount member,a fixed barrel member secured in position closer to an object to the pedestal barrel member and having longitudinal grooves defined therein,a focus cam barrel member, a focus interlocking plate, and a first cam barrel member, each disposed inside the fixed barrel member,a second cam barrel member disposed inside any of the focus cam barrel member, the focus interlocking plate, and the first cam barrel member,a third cam barrel member disposed outside the fixed barrel member,an automatic focusing unit secured to an outer surface of the pedestal barrel member, andan anti-vibration unit disposed inside the pedestal barrel member and at least partially or completely overlapping the automatic focusing unit when the lens barrel assembly takes the position at the wide-angle end.2. The lens barrel assembly suitable for a zoom lens according to claim 1 , wherein the pedestal barrel member is directly secured to the mount member.3. The lens barrel assembly suitable for a zoom lens ...

Zoom lens barrel

A zoom lens barrel includes front and rear lens group support frames, a first spring member provided to bias the front lens group support frame and a diaphragm in directions away from each other, and a second spring member provided to bias the diaphragm and the rear lens group support frame in directions away from each other. Spring loads of the first and second spring members are determined such that, when the front and rear lens group support frames approach each other during zooming, one and the other of the first and second spring members are compressed and not compressed, and the other of the first and second spring members is compressed after the one of the first and second spring members is fully compressed.

Electromagnetic actuator for a surgical instrument

The invention relates to an electromagnetic actuator for a surgical or medical instrument, the actuator having a stator ( 19 ) and a displaceable element ( 10 ), which at least partially comprises a paramagnetic or ferromagnetic material and can be displaced from a first position into a second position by applying an electromagnetic field. The invention is characterized in that the displaceable element ( 10 ) is or will be held in the first or in the second position by a permanent magnet.

LENS BARREL AND IMAGING APPARATUS

A lens barrel includes a cam follower, a first cam ring with a cam slide protrusion in which a cam groove engages with the cam follower, a second cam ring so supported by the first cam ring that both are unrotatable around an axis parallel to an optical axis, a rectilinear guide ring so supported by the second cam ring that the second cam and rectilinear guide rings are rotatable around the axis and unmovable in the optical axis direction, a rectilinear guide guiding the rectilinear guide ring in the optical axis direction, a rectilinear cam ring in which a cam slide groove engages the cam slide protrusion and which guides the rectilinear guide in the optical axis direction, and a rotary ring so supported by the rectilinear cam ring that the rectilinear cam and rotary rings are rotatable around the axis and unmovable in the optical axis direction. 1. A lens barrel comprising:a first-group frame provided with a cam follower;a first cam ring which is provided with a cam slide protrusion and in which a cam groove that slidably engages with the cam follower is formed;a second cam ring so supported by the first cam ring that the first cam ring and the second cam ring are unable to rotate relative to each other around an axis parallel to an optical axis;a rectilinear guide ring so supported by the second cam ring that the second cam ring and the rectilinear guide ring are rotatable relative to each other around the axis parallel to the optical axis and unmovable relative to each other in the optical axis direction, the rectilinear guide ring guiding the first-group frame in the optical axis direction;a rectilinear guide/movable frame that guides the rectilinear guide ring in the optical axis direction;a rectilinear cam ring in which a cam slide groove that slidably engages with the cam slide protrusion is formed and which guides the rectilinear guide/movable frame in the optical axis direction; anda rotary ring so supported by the rectilinear cam ring that the rectilinear ...

Control device for a lens of a camera

A control device for a lens ( 12 ) of a camera ( 10 ), in particular an HD camera, for adjusting the focus, the aperture and/or the zoom comprises at least one electric motor drive unit ( 16 ) for adjusting a lens ring ( 14 ) and at least one operating unit ( 18 ) with a manually deflectable operating element ( 28 ) for controlling the drive unit ( 16 ). The operating unit ( 18 ) has a monitoring device which provides tactile feedback about the extent and/or the direction of the manual deflection.

Lens apparatus

A lens apparatus includes a lens housing, driven member that is driven in a first direction. A lens barrel body that includes a lens, is separated from the driven member upon receiving an impact including a component of a second direction and can move. A drive section drives the driven member in the first direction. When the lens housing receives an impact including a component of the first direction, the drive member and the driven member are separated apart, and the driven member and the lens barrel body move together in the first direction, and when the lens housing receives an impact including the component of the second direction, the drive member prevents the driven member from moving in the second direction, the driven member and the lens barrel body are separated apart, and the lens barrel body moves.

LENS BARREL

A lens barrel comprises a first frame, a barrier mechanism, and a second frame. The barrier mechanism is fixed to the first frame and blocks an opening. The second frame uses a cam mechanism to guide the first frame in the optical axis direction. The second frame has a cylindrical cam mechanism part that constitutes a cam mechanism. The cam mechanism part is provided with a thin-wall part that is partially thinner in the radial direction. A fixing portion of the barrier mechanism goes into spaces between the thin-wall part and the first frame. 1. A lens barrel comprising:a first frame;a barrier mechanism fixed to the first frame and configured to block an opening; anda second frame configured to guide the first frame in the optical axis direction by a cam mechanism, whereinthe second frame includes a cylindrical cam mechanism part that constitutes a cam mechanism, the cam mechanism includes a thin-wall part that is partially thinner in the radial direction, anda fixing portion of the barrier mechanism go into spaces between the thin-wall part and the first frame.2. The lens barrel according to claim 1 , whereinthe barrier mechanism includes barrier vanes that block off an opening, a barrier case that supports the barrier vanes, and a mounting portion that forms part of the fixing portion and protrude in the optical axis direction from the barrier case,the first frame includes a engaged portion that forms part of the fixing portion and hooks the a mounting portion, andif the first frame is guided by the second frame in the optical axis direction, at least part of the mounting portion and the engaged portion goes into spaces formed between the thin-wall part and the first frame.3. A lens barrel comprising:a cam frame including a cam, the cam including a single side face on the image plane side;a moving frame configured to move in an optical axis direction with respect to the cam frame and rotate with respect to the cam frame; anda barrier mechanism including a ...

LENS BARREL

The lens barrel includes a moving frame, a drive frame, and a rectilinear guide frame. The drive frame includes a cam mechanism and guides the moving frame in the optical axis direction with the cam mechanism. The rectilinear guide frame supports the moving frame so that the moving frame moves in the optical axis direction but doesn't rotate. The drive frame includes a rotary guide portion. The rotary guide portion supports the rectilinear guide frame so that the rectilinear guide frame rotates with relative to the cam mechanism and doesn't move relatively in the optical axis direction. The rotary guide portion is disposed on the outer peripheral side of the cam mechanism and on the outer peripheral side of the moving frame. A holding space is formed between the cam mechanism and the rotary guide portion. Part of the moving frame is inserted into the holding space. 1. A lens barrel , comprising:a moving frame;a drive frame including a cam mechanism and configured to guide the moving frame in the optical axis direction with the cam mechanism; anda rectilinear guide frame configured to support the moving frame so that the moving frame moves in the optical axis direction but does not rotate,the drive frame includes a rotary guide portion, the rotary guide portion supporting the rectilinear guide frame so that the rectilinear guide frame rotates with relative to the cam mechanism and does not move relatively in the optical axis direction,the rotary guide portion is disposed on the outer peripheral side of the cam mechanism and on the outer peripheral side of the moving frame, anda holding space is formed between the cam mechanism and the rotary guide portion, part of the moving frame being inserted into the holding space.2. The lens barrel according to claim 1 , whereinthe drive frame further includes a flange that protrudes outward in the radial direction from the cam mechanism, andthe rotary guide portion protrudes in the optical axis direction from the flange.3. The ...

LENS BARREL

This lens barrel includes a first frame, a second frame, a third frame, an annular portion, and a bayonet portion. The bayonet portion protrudes to both sides beyond the width of the rectilinear guide portion in the peripheral direction, and is divided by a plurality of slits. The bayonet portion is supported on the second frame at two or more places including both sides of the rectilinear guide portion in the peripheral direction. 1. A lens barrel , comprising:a first frame including a rectilinear guide groove;a second frame including a rotary guide groove and configured to guide the first frame in the optical axis direction with a cam mechanism; anda third frame configured to guide the movement of the first frame, an annular portion constituting the outer periphery;', 'a rectilinear guide portion provided to the inner peripheral part of the annular portion and configured to extend in the optical axis direction; and', 'a bayonet portion configured to extend in the optical axis direction from the inner peripheral part of the annular portion,, 'the third frame includesthe first frame is supported by engaging the rectilinear guide portion of the third frame with the rectilinear guide portion of the first frame, so that the first frame moves in the optical axis direction and does not rotate with respect to the third frame,the second frame is supported by engaging the bayonet portion of the third frame with the rotary guide groove of the second frame, so that the second frame rotates relative to the third frame and moves relatively in the optical axis direction,the bayonet portion protrudes to both sides beyond the width of the rectilinear guide portion in the peripheral direction, and is divided by a plurality of slits, andthe bayonet portion is supported on the second frame at two or more places including both sides of the rectilinear guide portion in the peripheral direction.2. The lens barrel according to claim 1 , whereina first region occupied by the rectilinear ...

Image pickup system

An image pickup system includes two lens apparatuses each including a movable optical member, a driving unit that drives the movable optical member, and a driving signal generating unit that generates a driving signal for causing the driving unit to drive the movable optical member, a command signal generating unit that generates a command signal to command driving of the movable optical member, a posture determining unit that determines the posture of each lens apparatus, and a master-slave setting unit that sets each lens apparatus, based on the determined posture of the lens apparatus, as one of a master lens apparatus in which the driving signal generating unit generates the driving signal based on the command signal and a slave lens apparatus in which the driving signal generating unit generates the driving signal based on the position of the movable optical member in the other lens apparatus.

Zoom lens barrel assembly

A zoom lens barrel assembly includes: a first zoom ring comprising a first protrusion; a guide ring disposed around the first zoom ring comprising a first guide slot through which the first protrusion passes, and a second guide slot; a second zoom ring comprising a second protrusion, and movable in an axial direction; a first cylinder comprising a guide groove into which the second protrusion inserts, and a third protrusion passing through the second guide slot, and disposed between the first and second zoom rings; a second cylinder disposed around the guide ring comprising a fourth protrusion, a first groove portion into which the first protrusion inserts, and a second groove portion into which the third protrusion inserts, and supporting the first zoom ring and the first cylinder; and an external cylinder disposed around the second cylinder and comprising a third groove portion into which the fourth protrusion inserts.

Lens barrel

A lens barrel of the present invention includes: a fixing frame having a plurality of cam grooves that are formed an inner circumferential surface of the fixing frame and also having a protrusion provided between any adjacent two of the cam grooves among a plurality of the cam grooves; and a drive frame having cam followers that are provided to an outer circumferential surface of drive frame, are engaged with the cam grooves, and are movable along the cam grooves. With this configuration, when an external force is applied to the drive frame, an end portion of the drive frame comes into contact with the protrusion to prevent the cam followers from coming out of the cam grooves.

LENS CONTROL DEVICE AND LENS CONTROL METHOD

A lens control device incorporated in a lens device A is equipped with a first zoom position sending unit for sending a zoom position signal indicating a zoom position of the first lens device A to a lens device B; a second zoom position sending unit for sending an adjusted zoom position signal for zoom position adjustment of the lens device B to the lens device B; a zoom storage unit for storing zoom adjustment information in which a zoom position adjustment amount indicated by the adjusted zoom position signal is correlated with the zoom position of the lens device A; and a third zoom position sending unit for sending a zoom position signal for the lens device B on the basis of the zoom adjustment information in response to a zoom manipulation signal indicating a zoom manipulation on the lens device A. 1. A lens control device which is incorporated in a first lens device for 3D image taking and controls the first lens device and a second lens device which is made usable for 3D image taking when connected to the first lens device , comprising:a first zoom position sending unit for sending a zoom position signal indicating a zoom position of the first lens device to the second lens device;a second zoom position sending unit for sending an adjusted zoom position signal for zoom position adjustment of the second lens device to the second lens device;a zoom storage unit for storing zoom adjustment information in which a zoom position adjustment amount indicated by the adjusted zoom position signal is correlated with the zoom position of the first lens device; anda third zoom position sending unit for sending a zoom position signal for the second lens device on the basis of the zoom adjustment information in response to a zoom manipulation signal indicating a zoom manipulation on the first lens device.2. The lens control device according to claim 1 , further comprising a lens information receiving unit for receiving identification information that is specific to the ...

Lens control device and lens control method

A first lens device ( 10 A) for 3D image taking and a second lens device ( 10 B) which is made usable for 3D image taking when connected to the first lens device are used. A common zoom range of the first lens device and the second lens device is set. Common brightness control ranges of the first lens device and the second lens device are set at respective focal lengths included in the common zoom range. A zoom position signal corresponding to a target focal length of the first lens device included in the common zoom range and a brightness control signal corresponding to target brightness of the first lens device at the target focal length included in the common brightness control range is sent from the first lens device to the second lens device.

LENS BARREL ASSEMBLY AND PHOTOGRAPHING APPARATUS INCLUDING THE SAME

A lens barrel assembly includes: a lens barrel that is rotatable about an optical axis and is movable in a direction along the optical axis; a moving plate that is combined with the lens barrel so that the moving plate is rotated together with the lens barrel and is movable with respect to the lens barrel in the direction along the optical axis; a power transmission unit that is installed on the moving plate and transmits an outside rotation force to the lens barrel via the moving plate; and a stopper that is disposed on a path on which the moving plate moves in the direction along the optical axis and that limits a movement of the moving plate in the direction along the optical axis in a partial section of the path on which the lens barrel is moved. 1. A lens barrel assembly comprising:a lens barrel that is rotatable about an optical axis and is movable in a direction along the optical axis;a moving plate that is combined with the lens barrel so that the moving plate is rotated together with the lens barrel and is movable with respect to the lens barrel in the direction along the optical axis;a power transmission unit that is installed on the moving plate and transmits an outside rotation force to the lens barrel via the moving plate; anda stopper that is disposed on a path along which the moving plate moves in the direction along the optical axis and that limits a movement of the moving plate in the direction along the optical axis in a partial section of the path on which the lens barrel is moved.2. The lens barrel assembly of claim 1 , wherein:the lens barrel comprises a guide groove that extends in a direction substantially parallel to the optical axis, andthe moving plate is inserted in the guide groove so as to be movable along an extension direction of the guide groove.3. The lens barrel assembly of claim 2 , wherein the guide groove is formed on an outside surface of the lens barrel.4. The lens barrel assembly of claim 3 , wherein:the guide groove comprises ...

Lens focusing device

A lens focusing device includes a lens holder, a winding fitted around the lens holder, and an outer case enclosing the lens holder therein. The outer case includes an outer wall portion, and multiple inner wall portions connected to the outer wall portion via multiple connecting portions. The inner wall portions are located between the lens holder and the winding, and respectively include an inner surface, an outer surface, and a first and a second side surface. The lens holder is formed on an outer face with confining areas, each of which includes a main surface and a first and a second raised side surface respectively facing against the inner surface and the first and second side surfaces, so that the inner wall portions are limited to move relative to the lens holder only within the confining areas. Therefore, the lens focusing device is impact-resistant and undue-twisting protected.

ZOOM LENS ADJUSTMENT STRUCTURE

A zoom lens adjustment structure includes a substrate, a focus device and a driving device. The focus device is mounted on the substrate, and includes a stationary lens barrel, a outside guide lens barrel, and a cam lens barrel. The outside guide lens barrel is received in the stationary lens barrel, the cam lens barrel is set at the inner side of the outside guide lens barrel, and plurality of active lens barrels are sandwiched between the outside guide lens barrel and the cam lens barrel. The active lens barrel includes a lens set. The driving device includes a motor and a gear group, which is positioned laterally to the stationary lens barrel, to drive the focus device adjusting the position of the active lens. 1. A zoom lens adjustment structure , comprising:a substrate; a stationary lens barrel;', 'an outside guide lens barrel received in the stationary lens barrel; and a cam lens barrel is set at the inner side of the outside guide', 'lens barrel, and a plurality of active lens barrels are sandwiched between the outside guide lens barrel and the cam lens barrel, wherein the active lens barrel comprises a lens set; and, 'a focus device mounted on the substrate, comprising;'}a driving device comprising a motor and a gear group, the driving device positioned lateral to the stationary lens barrel, to drive the focus device to adjust position of the active lens.2. The zoom lens adjustment structure as claim 1 , wherein the stationary lens barrel of the focus device is mounted on the substrate toward the objective side claim 1 , the stationary lens barrel comprising an aperture set in a center of the substrate.3. The zoom lens adjustment structure as claim 1 , wherein the stationary lens barrel claim 1 , the outside guide lens barrel and the cam lens barrel each comprises a track claim 1 , the track of the stationary lens barrel is set on an internal edge of the surface claim 1 , the track of the outside guide lens barrel is set on the body claim 1 , the track of ...

Camera system

A camera system includes an interchangeable lens and a camera body. The camera body includes a first detecting unit for detecting an autofocus evaluation value, a second detecting unit for detecting that a position of a focus lens comes close to a focus position before running past the focus position, and a signal generating unit. In an autofocus control, the signal generating unit generates a control signal for controlling a driving unit to drive the focus lens at a first speed before the second detecting unit detects that the position of the focus lens comes close to the focus position, and to drive the focus lens at a second speed lower than the first speed based on a change rate of the autofocus evaluation value after the second detecting unit detects that the position of the focus lens comes close to the focus position.

Zoom Lens Apparatus with Focus Adjusting and Optical Imaging Device Therewith

A zoom lens apparatus with focus adjusting and an optical imaging device therewith are provided, wherein a combination of screw-driven ultra sonic motor and voice coil motor is adopted to drive different optical lens sets (). For the ultra sonic motor, the screw motion of the rotor () is transformed into a simple rectilinear motion by providing a third tube () placed in the rotor () and radially fixed relative to the stator (). Thus the zoom lens apparatus with focus adjusting produced with the combination can well maintain the stability of the optical axis, moreover, the combination of different driving methods integrates and makes better use of lens sets of different functions and hence simplifies the overall structure. 1. A zoom lens apparatus with focus adjusting , comprising:a first tube with threads formed on the inner surface thereof,a second tube with threads formed on both outer and inner surfaces thereof, wherein the second tube is placed inside the first tube, the pitch and/or the spiral direction of the threads on the outer surface is different from that of the threads on the inner surface, and the threads on the outer surface are arranged to match with the threads on the inner surface of first tube,a first set of piezoelectric elements attached on the outer surface of the first tube and excited by electric signals to propel the first tube to generate a traveling wave, so as to force the second tube to rotate relative to the first tube,a third tube placed inside the second tube, wherein threads are formed on the outer surface of the third tube for matching with the threads on the inner surface of the second tube, the hollow portion of the third tube is arranged to hold a first optical lens set, and the third tube is radially fixed relative to the first tube such that the third tube is moved in a straight line along the rotary axis of the second tube during the rotation of the second tube,wherein further comprising: a voice coil motor comprising a ...

LENS BARREL AND IMAGE CAPTURING DEVICE

A lens barrel includes a fixed frame, a rotational frame, a first straight advance frame, a first lens retaining frame, and a first drive. The rotational frame engages with the fixed frame. The first straight advance frame engages with the rotational frame. The first lens retaining frame retains a first lens group and engage with the rotational frame. The first drive unit is attached to the first straight advance frame and drives rotationally the rotational frame around an optical axis. The first drive unit and the first straight advance frame move integrally with respect to the fixed frame in an optical axis direction according to a rotation of the rotational frame driven by the first drive unit. The first lens retaining frame further move with respect to the first straight advance frame in the optical axis direction, when the first straight advance frame moves such as above state. 1. A lens barrel comprising:a fixed frame;a rotational frame configured to engage with the fixed frame;a first straight advance frame configured to engage with the rotational frame;a first lens retaining frame configured to retain a first lens group and engage with the rotational frame, the first lens group including at least one lens; anda first drive unit attached to the first straight advance frame and configured to rotationally drive the rotational frame around an optical axis,the first drive unit and the first straight advance frame are configured to move integrally with respect to the fixed frame in an optical axis direction according to a rotation of the rotational frame driven by the first drive unit; andthe first lens retaining frame is configured to further move with respect to the first straight advance frame in the optical axis direction, when the first straight advance frame moves with respect to the fixed frame according to the rotation.2. The lens barrel according to claim 1 , whereinthe first lens retaining frame does not overlap with the fixed frame if the first lens ...

Lens apparatus and image pickup apparatus

A lens apparatus includes a first optical system, and a second optical system disposed in parallel with the first optical system. Each of the first optical system and the second optical system includes, in order from an object side to an image side, a first optical axis, a second optical axis, and a third optical axis. When each of the first optical system and the second optical system rotates around an axis parallel to the third optical axis, a distance between first optical axes of the first optical system and the second optical system changes greater than a distance between third optical axes.

ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME

A zoom lens includes, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; a fourth lens unit having a positive refractive power; and a fifth lens unit having a negative refractive power, in which: at a telephoto end as compared to a wide angle end, an interval between first lens unit and second lens unit is increased, and an interval between second lens unit and third lens unit is decreased; an interval between each pair of adjacent lens units is changed during zooming; and focal lengths of a focusing mechanism and the third lens unit, a movement amount of the fifth lens unit during zooming from the wide angle end to the telephoto end, and other factors are appropriately set. 1. A zoom lens , comprising , in order from an object side to an image side:a first lens unit having a positive refractive power;a second lens unit having a negative refractive power;a third lens unit having a positive refractive power;a fourth lens unit having a positive refractive power; anda fifth lens unit having a negative refractive power,wherein at a telephoto end as compared to a wide angle end, an interval between the first lens unit and the second lens unit is increased, and an interval between the second lens unit and the third lens unit is decreased,wherein an interval between each pair of adjacent lens units is changed during zooming,wherein the fifth lens unit is configured to move in an optical axis direction during focusing, and [{'br': None, 'i': f', 'fw<, '0.4<3/1.0; and'}, {'br': None, 'i': m', 'fw, '−1.0<5/<−0.5,'}], 'wherein the following conditional expressions are satisfiedwhere fw represents a focal length of the zoom lens at the wide angle end, f3 represents a focal length of the third lens unit, and m5 represents a movement amount of the fifth lens unit during zooming from the wide angle end to the telephoto end.2 ...

LENS BARREL AND OPTICAL DEVICE

A lens barrel that is capable of reducing unnecessary movement of an optical element. A first unit has a first correction optical element arranged on an optical axis and a first magnet that moves the first correction optical element along a first spherical surface around a first point on the optical axis. A second unit has a second correction optical element arranged on the optical axis and a second magnet that moves the second correction optical element along a second spherical surface of which radius is smaller than the radius of the first spherical surface around a second point on the optical axis. A magnetic body is arranged on at least one of the first unit and the second unit, and reduces leakage of magnetic flux from a facing part of the second magnet that faces the first magnet. 1. A lens barrel comprising:a first unit configured to have a first correction optical element arranged on an optical axis, and a first magnet that moves the first correction optical element along a first spherical surface around a first point on the optical axis;a second unit configured to have a second correction optical element arranged on the optical axis, and a second magnet that moves the second correction optical element along a second spherical surface of which radius is smaller than the radius of the first spherical surface around a second point on the optical axis; anda magnetic body configured to be arranged on at least one of said first unit and said second unit, and to reduce leakage of magnetic flux from a facing part of the second magnet that faces the first magnet.2. The lens barrel according to claim 1 , wherein said magnetic body is arranged on said second unit.3. The lens barrel according to claim 1 , wherein said magnetic body is made from soft magnetic material.4. The lens barrel according to claim 1 , wherein said magnetic body is a yoke.5. The lens barrel according to claim 1 , wherein said magnetic body is magnetized in a magnetic pole that is different from a ...

LENS BARREL, IMAGING DEVICE, AND PART OF LENS BARREL

A lens barrel is provided that accommodates an optical member including a lens so as to be movable in an optical axis direction. The lens barrel includes a first part that is molded from a resin material in which an additive with a friction-reducing property is added to a base resin, and thereby the additive is exposed on the surface of the base resin. The first part moves along with the movement of the optical member in the optical axis direction. The lens barrel also includes a second part that comes into contact with the first part, and slides relative to a surface of the first part on which the additive is exposed along with the movement of the optical member moves in the optical axis direction. 1. A lens barrel accommodating an optical member including a lens such that the optical member is movable in a direction of an optical axis of the optical member , the lens barrel comprising:a first part configured to move when the optical member moves in the direction of the optical axis, the first part being molded of a resin material in which an additive including organosilicon compound with a friction-reducing property is added to a base resin, the additive being exposed on a surface of the base resin; anda second part being in contact with the surface of the first part, the second part relatively sliding on the surface of the first part when the optical member moves in the direction of the optical axis.2. The lens barrel according to claim 1 ,wherein the first part is one of a lens frame that secures the lens and a part being in contact with the lens frame.3. The lens barrel according to claim 1 ,wherein the additive contains organosilicone.4. The lens barrel according to claim 1 ,wherein the second part is molded of a resin material in which an additive with a friction-reducing property is added to a base resin, and the additive being exposed on a surface of the base resin.5. The lens barrel according to claim 1 ,wherein the base resin contains at least one of ...

IMAGE PICKUP INFORMATION OUTPUT APPARATUS AND LENS APPARATUS EQUIPPED WITH SAME

Image pickup information output apparatus which outputs information about image pickup condition derived from combination of positions/states of condition decision members serving as optical members that affect fulfillment of the condition, comprising: setting unit for setting a condition setting value as the condition to be fulfilled; controller for driving one of the condition decision members to control its position/state based on the condition setting value, condition calculator for calculating information about the condition as calculated condition based on the combination of positions/states of the condition decision members; determination unit for determining whether or not the condition setting value changed; decision unit for determining the information about condition to be output, based on the calculated condition and the determination made by the determination unit as to whether or not the condition setting value changed; and output unit for outputting information about the condition to be output determined by the decision unit. 117.-. (canceled)18. An information output apparatus , comprising:a setting unit configured to set an object distance setting value;a deriving unit configured to derive the object distance information based on a position of a focus lens and a position of a zoom lens;a determination unit configured to determine whether or not the object distance setting value changed; andan output unit configured to output the object distance information derived by the deriving unit based on a determination made by the determination unit,wherein the output unit updates the object distance information to be output when the determination unit determines the setting value being changed, and does not update the object distance information to be output when the determination unit does not determine the setting value being changed.19. The information output apparatus according to claim 18 , configured such that:the determination unit determines whether ...

Head mounted display and method for controlling the same

Disclosed are a head mounted display (HMD), and a method for controlling the same. The HMD includes: a body having a display unit; a lens driving unit provided at the body, and configured to move a lens unit spaced apart from the display unit, wherein the lens driving unit includes: a lens frame having a first tube portion protruded in a first direction, and coupled to the body; a lens housing having a second tube portion protruded in the first direction and having the lens unit, the second tube portion relatively moved on the first tube portion; a link unit coupled to the lens frame and the lens housing, and configured to move the lens housing; and a driving unit provided at one side of the first tube portion, and configured to operate the link unit.

LENS DRIVING MECHANISM

A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens. The first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction. 1. A lens driving mechanism for driving a first lens and a second lens to move , wherein light enters the first and second lenses along a light incident direction , the lens driving mechanism comprising:a first base, movably connected to the first lens;a first driving assembly, having a first magnet and a first coil corresponding to the first magnet for moving the first lens; anda second driving assembly, having a second magnet and a second coil corresponding to the second magnet for moving the second lens, wherein the first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction.2. The lens driving mechanism as claimed in claim 1 , further comprising a magnetic permeable element connected to the first magnet.3. The lens driving mechanism as claimed in claim 2 , wherein the magnetic permeable element is disposed on a side of the first magnet claim 2 , and the first magnet is located between the magnetic permeable element and the first coil.4. The lens driving mechanism as claimed in claim 1 , wherein the polar direction of the second magnet is perpendicular to the light incident direction.5. The lens driving mechanism as claimed in claim 4 , further comprising a magnetic permeable element connected to the first magnet.6. The ...

Tri-Axis Close-Loop Feedback Controlling Module For Electromagnetic Lens Driving Device

The tri-axis close-loop feedback controlling module for electromagnetic lens driving device comprises a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Han element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device. 118-. (canceled)19. An electromagnetic lens driving device , comprising:a lens holder for holding a lens;a movable frame for receiving the lens holder in such a manner that the lens holder is movable relative to the movable frame along a Z-axis direction;a driving module, furnished between the movable frame and the lens holder for driving the lens holder to move within the movable frame along the Z-axis direction;a position detecting unit, furnished between the lens holder and the movable frame for detecting a position of the lens holder relative to the movable frame;an optical image stabilization (OIS) module for driving the movable frame together with the lens holder to perform bi-directional movements along an X-axis direction and a Y-axis direction; wherein the X-axis, Y-axis and Z-axis are perpendicular to each other;an electric coupling structure for at least coupling the position detecting unit and the driving module; said electric coupling structure comprising at least: two first coupling elements and two second coupling elements; one end of each one of ...

MAGNIFICATION OPTICAL SYSTEM

A magnification optical system forms an enlarged image of an object. It includes a refractive optical system including a plurality of lens groups; and a mirror train including a curved mirror, arranged in this order from an object side, a first focus structure configured to move the respective lens groups of the refractive optical system by different amounts along a normal line of a conjugate surface on the object side, and a second focus structure configured to move the respective lens groups along the normal line of the conjugate surface on the object side by different amounts from those of the first focus structure. 1. (canceled)2. A magnification optical system that enlarges an image of an object , the magnification optical system comprising: a first lens group having a positive power,', 'a second lens group,', 'a third lens group including a plurality of lenses, and', 'a fourth lens group;, 'a refractive optical system including, in order from an object side to an enlarged side,'}a curved mirror that reflects light from the refractive optical system; anda focus structure that moves the third lens group and the fourth lens group and does not move the first lens group and the curved mirror.3. The magnification optical system according to claim 2 , whereinthe focus structure further moves the second lens group, andthe focus structure moves the second lens group, the third lens group, and the fourth lens group by different amounts.4. The magnification optical system according to claim 3 , wherein the focus structure includesa first focus structure that moves the second lens group and the third lens group, anda second focus structure that moves the fourth lens group.5. The magnification optical system according to claim 4 , wherein the second focus structure is fixed after a focus adjustment is performed by the second focus structure.6. The magnification optical system according to claim 2 , wherein the fourth lens group comprises a single lens that is closer to the ...

FOCUS ADJUSTMENT SYSTEM FOR AN IMAGE DISPLAY DEVICE

An image display device includes an image display element, a light source, an illumination system, a projector system comprising a refractive optical system including a plurality of lens groups, and a mirror train including a curved mirror, a first focus structure configured to move the respective lens groups of the refractive optical system by different amounts along a normal line of the image display element, and a second focus structure configured to move the respective lens groups along the normal line of the image display element by different amounts from those of the first focus structure. 1an image display element;a light source;an illumination system;a projector system comprising a refractive optical system including a plurality of lens groups, and a mirror train including a curved mirror;a first focus structure configured to move the respective lens groups of the refractive optical system by different amounts along a normal line of the image display element; anda second focus structure configured to move the respective lens groups along the normal line of the image display element by different amounts from those of the first focus structure.. An image display device comprising: The present application is a continuation of U.S. application Ser. No. 13/669,159 filed Nov. 5, 2012, which is based on and claims priority from Japanese Patent Application No. 2011-242679 filed on Nov. 4, 2011, the disclosure of each of which is hereby incorporated by reference in their entirety.In addition, the present application is related to the U.S. patent application entitled “Magnification Optical System”.The present invention relates to a projector type image display device which uses a reflective light bulb and can be implemented as various kinds of projector.Referring to , the structure and function of a general projector type image display device using a reflective light bulb is described.In a projector includes a reflective light bulb LB as an image display element, a ...

Optical Aberration Control for Camera

Various embodiments disclosed herein include optical aberration control for a camera system. Such a camera system may implement optical aberration control, e.g., by combining one or more variable focus devices with one or more actuators (e.g., a voice coil motor actuator) for moving a lens stack of the camera system to provide autofocus (AF) and/or optical image stabilization (OIS) functionality. A variable focus device may have variable optical power to achieve AF, OIS, and/or introduce optical aberrations such as spherical aberration. In some implementations, the variable focus device may be driven to introduce optical aberrations, and the actuator for moving the lens stack may be driven to compensate for the optical power from the variable focus device.

CAM FOLLOWER AND LENS BARREL

There are provided a cam follower of which the amount of elastic deformation can be appropriately restricted with simple configuration and which can be easily manufactured and a lens barrel. A cam follower () includes a hollow cam follower body () of which a distal end is open, a first slit () that is cut toward a proximal end from the distal end of the cam follower body (), and a second slit () that is cut toward an inner peripheral portion from an outer peripheral portion of the cam follower body () in a direction orthogonal to an axis. Protruding portions () are provided on both inner wall surfaces of the first slit () at a distal end portion of the first slit. The protruding portions () restrict deformation of the cam follower body () equal to or larger than a defined amount of deformation in a radial direction. 1. A cam follower that is to be fitted into a straight groove and a cam groove , comprising:a hollow cam follower body of which a distal end is open;a first slit that is cut toward a proximal end from the distal end of the cam follower body; anda protruding portion that is provided on at least one inner wall surface of the first slit and restricts deformation of the cam follower body equal to or larger than a defined amount of deformation in a radial direction.2. The cam follower according to claim 1 ,wherein the protruding portion is provided on one inner wall surface of the first slit.3. The cam follower according to claim 1 ,wherein the protruding portions are provided on both inner wall surfaces of the first slit.4. The cam follower according to claim 3 ,wherein the protruding portions are provided on both the inner wall surfaces of the first slit so as to face each other.5. The cam follower according to claim 1 ,wherein a distal end of the protruding portion has a shape of an arc.6. The cam follower according to claim 1 ,wherein the protruding portion restricts deformation equal to or larger than a sum of a positional tolerance and a width tolerance ...

Electronic device including camera module

An electronic device is provided. The electronic device includes a camera including a lens unit and a lens driving unit and a processor configured to obtain a first image of an object from the camera, move the lens unit by a specified amount using the lens driving unit, obtain a second image of the object that corresponds to a position to which the lens unit is moved, determine a focus position for an image of the object based on a difference between the first image, the second image, and the specified amount of movement, determine an amount of movement for moving the lens unit to the focus position including determining a distance between the object and the lens unit and correcting the determined amount of movement based on the determined distance, and move the lens unit by the determined amount of movement using the lens driving unit.

CAMERA MODULE AND PORTABLE ELECTRONIC DEVICE INCLUDING THE SAME

A camera module includes a lens module including lenses and a reflecting module disposed in front of the lens module. The reflecting module is configured to change a path of light to direct the light toward the lens module. The reflecting module includes a holder in which a reflecting member configured to change the path of the light is mounted and a first housing supporting the holder. The holder is configured to slide with respect to the first housing to enable rotation of the reflecting member with respect to a first axis and a second axis. 1. A reflecting module , comprising:a holder in which a reflecting member configured to change a path of light is mounted; anda first housing supporting the holder,wherein the holder is configured to rotate about a first axis direction and a second axis direction with respect to the first housing, andwherein the holder is disposed on the first housing in a direction perpendicular to the first and second axes.2. The reflecting module of claim 1 , wherein the holder is pressed toward the first housing in the direction perpendicular to the first and second axes.3. The reflecting module of claim 2 , wherein a first yoke is disposed on one surface of facing surfaces of the holder and the first housing claim 2 , and a magnet is disposed on the other surface claim 2 , and wherein the first yoke and the magnet are configured to magnetically attract each other to press the holder toward the first housing in the direction perpendicular to the first and second axes.4. The reflecting module of claim 3 , wherein the first yoke is one or more of a magnetic material and a magnet.5. The reflecting module of claim 1 , wherein the path of light is changed from a direction of the second axis to the direction perpendicular to the first and second axes.6. The reflecting module of claim 1 , wherein first driving magnets are mounted in the holder claim 1 , and coils claim 1 , respectively facing the first driving magnets claim 1 , are disposed in ...

Iris module and camera module including the same

A camera module includes a housing, a lens module including a yoke and disposed in the housing, an iris module including a plurality of blades and configured to form N apertures having different sizes using the plurality of blades, N being an integer greater than or equal to 2, the iris module being disposed in the housing above the lens module, and an iris driver including a driving coil, and a magnet unit configured to be movable reciprocally in a linear direction and including a driving magnet opposing the driving coil and the yoke, wherein the yoke is configured to enable the magnet unit to be fixed at N positions along a movement path of the magnet unit.

Lens apparatus and image pickup apparatus

An apparatus includes a focus lens unit movable for focusing, a zoom lens unit movable for zooming, and a controller configured to determine information on a target angle of view based on information relating to a position of the focus lens unit and information relating to a position of the zoom lens unit, and to perform control as control of the position of the zoom lens unit based on the information on the target angle of view and the information relating to the position of the focus lens unit. The controller is configured to perform setting of the target angle of view in a case where movement of the zoom lens unit is started by the control after the control is started.

LENS BARREL

A lens barrel that achieves modes with and without an optical element while reducing a size in an optical axis direction. A first drive mechanism moves a first optical element in the optical axis direction. A second optical element is located at an image surface side of the first optical element and is selectively inserted in an optical path. A second drive mechanism moves a holding member that holds the second optical element in a direction different from an optical axis. A control unit controls the first drive mechanism to move the first optical element to an object side to a position where the first optical element and the holding member are not in an overlap state when viewing in a direction perpendicular to the optical axis, controls the second drive mechanism to remove the second optical element from the optical path, when they are in the overlap state. 1. A lens barrel comprising:a first optical element;a first drive mechanism that moves said first optical element in an optical axis direction of an image pickup optical system;a second optical element that is located at an image surface side of said first optical element and is selectively inserted in an optical path of the image pickup optical system;a holding member that holds said second optical element;a second drive mechanism that moves said holding member that holds said second optical element in a direction different from an optical axis; anda control unit configured to control said first drive mechanism to move said first optical element to an object side to a position where said first optical element and said holding member are not in an overlap state when viewing in a direction that intersects perpendicularly with the optical axis, and then to control said second drive mechanism to remove said second optical element from the optical path, when said second optical element is removed from the optical path and when said first optical element and said holding member are in the overlap state.2. The lens ...

Lens Driving Apparatus

One embodiment of a lens driving apparatus may comprise: a bobbin having a first coil disposed on the outer circumferential surface thereof; a position detection sensor which is disposed on the outer circumferential surface of the bobbin and which moves together with the bobbin; a first magnet disposed opposite to the first coil; a housing for supporting the first magnet; upper and lower elastic members which are coupled to the bobbin and the housing; and a plurality of wirings which are disposed on the outer circumferential surface of the bobbin so as to electrically connect at least one of the upper or lower elastic members with the position detection sensor. 1. A lens moving apparatus comprising:a bobbin having a first coil disposed on an outer circumferential surface thereof;a position sensor disposed on the outer circumferential surface of the bobbin, the position sensor being configured to move together with the bobbin;a first magnet disposed so as to be opposite the first coil;a housing configured to support the first magnet;upper and lower elastic members coupled to the bobbin and the housing; anda plurality of wires disposed on the outer circumferential surface of the bobbin for connecting at least one of the upper and lower elastic members to the position sensor.2. The lens moving apparatus according to claim 1 , wherein the bobbin has a receiving recess claim 1 , in which the position sensor is disposed claim 1 , the receiving recess comprising a bottom and a sidewall.3. The lens moving apparatus according to claim 1 , further comprising:pads disposed on at least one of the bottom and the sidewall of the receiving recess so as to be connected to the position sensor, whereinone end of each of the wires is connected to a corresponding one of the pads.4. The lens moving apparatus according to claim 1 , whereinthe bobbin is provided in the outer circumferential surface thereof with line grooves spaced apart from each other, andeach of the wires is disposed in ...

Collapsible Lens Mount Systems

Systems are presented with special mechanical means to switch a set of lens elements to form a compound lens from a storage position to an imaging position, In the storage mode, these arrangements offer highly efficient space saving schemes suitable for use in application where space is a premium. In the imaging mode, a plurality of lens singlets are brought together on a common imagine axis whereby they operate to form very high quality images at a single image plane. Singlet lenses are held in a lens mount device of a disk element. A plurality of similar cooperating disk elements move against adjacent coupled disks to cause well-regulated desirable motion and positioning. Specifically, portions of the disk include a cam system which permits smooth movement as disk elements are counter rotated with respect to each other thus driving the preferred positioning. 1) Mechanical apparatus comprising a plurality of disk elements coupled about a common axis whereby relative rotational motion between them drives a prescribed positioning scheme.2) Mechanical apparatus of claim 1 , said disk elements are comprised of lens receiving seats into which optical singlet lenses may be affixed and firmly mounted.3) Mechanical apparatus of claim 2 , said relative rotational motion is further characterized as counter rotation with respect to an immediately adjacent disk element.4) Mechanical apparatus of claim 3 , said disk elements further comprise a cam system disposed about a peripheral annulus.5) Mechanical apparatus of claim 4 , said cam system is spatially cooperative with the cam system of a coupled adjacent disk element.6) Mechanical apparatus of claim 5 , said spatially cooperative cam system is arranged whereby counter rotational displacements with respect to an adjacent coupled disk element provides linear translation M the axial direction.7) Mechanical apparatus of claim 6 , said linear translation effected is of a magnitude on the order of a disk element thickness.8) ...

DISTANCE MEASUREMENT UNIT AND LIGHT IRRADIATION DEVICE

A distance measurement unit includes: a distance measurement light source that outputs distance measurement light; an objective lens through which the distance measurement light and reflected light are transmitted; an imaging lens through which the reflected light is transmitted and which forms an image at an imaging position; an optical path adjustment unit that adjusts an optical path of the reflected light; and a light detection unit that detects the reflected light. The objective lens allows the distance measurement light to be transmitted therethrough in a state in which an optical path of the distance measurement light is spaced apart from a central axis of the objective lens. The optical path adjustment unit adjusts the optical path so that the imaging position of the reflected light approaches a predetermined plane. A light reception surface of the light detection unit is located to follow along the predetermined plane. 1. A distance measurement unit comprising:a distance measurement light source that outputs distance measurement light that is laser light;an objective lens through which the distance measurement light and reflected light are transmitted, the reflected light being the distance measurement light reflected from a surface to be measured of an object;an imaging lens through which the reflected light is transmitted and which forms an image at an imaging position, the image being an image at a position at which the distance measurement light or the reflected light is condensed by the objective lens;an optical path adjustment unit that adjusts an optical path of the reflected light; anda light detection unit that detects the reflected light,wherein the objective lens allows the distance measurement light to be transmitted therethrough to the object side in a state in which an optical path of the distance measurement light is spaced apart from a central axis of the objective lens,the optical path adjustment unit adjusts the optical path of the ...

LENS DRIVING APPARATUS, CAMERA MODULE, AND OPTICAL INSTRUMENT

The present embodiment relates to a lens driving apparatus, comprising: a cover member; a housing disposed inside the cover member; a bobbin disposed inside the housing so as to move in a first direction; a first coil disposed on an outer circumferential surface of the bobbin; a first magnet coupled to the housing; an upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; a base disposed on a the lower side of the housing and coupled to the cover member; a substrate disposed between the housing and the base and including a circuit member having a second coil disposed to be opposite to the first magnet; and a plurality of support members connected to the upper elastic member and the substrate; wherein each of the plurality of support members is disposed in the proximity of the edge of the upper elastic member, and wherein the support members are connected to the upper elastic member at a position where a length in the x direction and a length in the y direction are different on the basis of the edge of the upper elastic member. 110-. (canceled)11. A lens driving apparatus , comprising:a cover member;a housing disposed in the cover member;a bobbin disposed in the housing so as to move in a first direction;a first coil disposed on the bobbin;a first magnet disposed on the housing;an upper elastic member disposed on an upper portion of the bobbin and coupled to the bobbin and the housing;a base disposed below the housing and coupled to the cover member;a substrate disposed between the housing and the base and including a circuit member having a second coil disposed to be opposite to the first magnet; anda plurality of support members connected to the upper elastic member and the substrate,wherein each of the plurality of support members is disposed on the proximity of the edge of the upper elastic member, andwherein the support member is connected to the upper elastic member at a position where a length in the x ...

LENS DRIVING APPARATUS

One embodiment of a lens driving apparatus may comprise: a bobbin having a first coil disposed on the outer circumferential surface thereof; a position detection sensor which is disposed on the outer circumferential surface of the bobbin and which moves together with the bobbin; a first magnet disposed opposite to the first coil; a housing for supporting the first magnet; upper and lower elastic members which are coupled to the bobbin and the housing; and a plurality of wirings which are disposed on the outer circumferential surface of the bobbin so as to electrically connect at least one of the upper or lower elastic members with the position detection sensor. 1. A lens moving apparatus comprising:a housing;a bobbin disposed in the housing;a first coil disposed on the bobbin;a position sensor disposed on the bobbin;a first magnet disposed on the housing so as to be opposite to the first coil;an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing;a second coil disposed under the first magnet so as to be opposite to the first magnet;a circuit board disposed under the second coil;a supporting member electrically connecting the upper elastic member and the circuit board; anda conductive pattern disposed on a surface of the bobbin and electrically connected to the position sensor.2. The lens moving apparatus according to claim 1 , wherein the conductive pattern is electrically connected to the upper elastic member.3. The lens moving apparatus according to claim 1 , wherein the bobbin comprises a recess in which the position sensor is disposed.4. The lens moving apparatus according to claim 3 , wherein one end of the conductive pattern is disposed in the recess claim 3 , and the one end of the conductive pattern is connected to the position sensor.5. The lens moving apparatus according to claim 4 , wherein another end of the conductive pattern is connected to the upper elastic member.6. The lens moving apparatus according to ...

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

Provided are a lens driving device, a camera module, and a camera-mounted device for which the miniaturization and weight reduction can be achieved and the reliability can also be improved. The lens driving device includes auto-focusing and shake-correcting driving parts utilizing a voice coil motor. An autofocus movable part includes a lens holder adapted to hold a lens part and an auto-focusing coil part, an autofocus fixing part includes a magnet holder adapted to hold an auto-focusing magnet part, and a shake-correcting fixing part includes a base to which a shake-correcting coil part is disposed. At least one of the lens holder, magnet holder, and base is formed from a molding material consisting of polyarylate (PAR) or a PAR alloy which is a mixture of multiple resin materials including polyarylate. 1. A lens driving device , comprising: an auto-focusing coil part to be disposed at a periphery of a lens part;', 'an auto-focusing magnet part to be disposed to be radially spaced apart from the auto-focusing coil part; and', 'an auto-focusing supporting part configured to support an autofocus movable part to be movable in an optical-axis direction with respect to an autofocus fixing part, the autofocus movable part including the auto-focusing coil part, the autofocus fixing part including the auto-focusing magnet part, and the auto-focusing driving part being configured to perform automatic focusing by utilizing a driving force of a voice coil motor composed of the auto-focusing coil part and the auto-focusing magnet part; and, 'an auto-focusing driving part including a shake-correcting magnet part to be disposed in the auto-focusing driving part;', 'a shake-correcting coil part to be disposed to be spaced apart from the shake-correcting magnet part in the optical-axis direction; and', 'a shake-correcting supporting part configured to support a shake-correcting movable part to be able to sway in an optical-axis-orthogonal plane with respect to a shake-correcting ...

Lens Drive Motor, Camera and Mobile Terminal Apparatus

Provided are a lens drive motor, a camera and a mobile terminal apparatus. The lens drive motor includes a housing, a lens support, a coil and a magnet component; the coil is wrapped around the lens support and is provided in the housing; the magnet component includes multiple sub-magnets; the multiple sub-magnets are sequentially arranged around a circumferential direction of the coil and are positioned in the housing, wherein each of at least two first sub-magnets of the multiple sub-magnets is of a bent type structure; multiple straight edge segments and multiple corner segments connecting the multiple straight edge segments are included at an outer periphery of the lens support; and outsides of the multiple straight edge segments are covered by the multiple sub-magnets. According to the lens drive motor, a problem of insufficient driving force of the lens drive motor in the related art is solved. 1. A lens drive motor , wherein the lens drive motor comprises: a housing , a lens support , a coil and a magnet component , the coil being wrapped around the lens support and being provided in the housing , the magnet component comprising multiple sub-magnets , and the multiple sub-magnets being sequentially arranged around a circumferential direction of the coil and being positioned in the housing , whereineach of at least two first sub-magnets of the multiple sub-magnets is of a bent type structure;multiple straight edge segments and multiple corner segments connecting the multiple straight edge segments are comprised at an outer periphery of the lens support; and outsides of the multiple straight edge segments are covered by the multiple sub-magnets.2. The lens drive motor as claimed in claim 1 , wherein each of at least two second sub-magnets of the multiple sub-magnets is of a straight line type structure claim 1 , and the at least two second sub-magnets are symmetrically arranged at two sides of the lens support claim 1 , each of the at least two first sub- ...

Lens unit, imaging device, and control method

There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.

CAMERA MODULE AND METHOD FOR CONTROLLING THE SAME

A camera module is provided, including a holder, a base, a bottom, an image sensor, and a first biasing element. The holder holds an optical lens and is disposed on the base. The bottom supports the image sensor and connects to the base via the first biasing element. The bottom and the image sensor can be moved with respect to the base by the first biasing element. 1. A camera module disposed in an electronic device , comprising:a base immovably connected to the electronic device;a movable part connected to an optical lens and an image sensor, wherein the movable part is movable relative to the base;a drive assembly driving the movable part to move relative to the base, wherein when the drive assembly drives the movable part to move relative to the base, the movable part makes the optical lens and the image sensor move relative to the base simultaneously;wherein the drive assembly comprises a first drive element and a second element, and when viewed from an optical axis of the optical lens, the base is polygonal, and the first drive element and the second element are located on different sides of the base.2. The camera module as claimed in claim 1 , wherein the first drive element and the second drive element comprise shape memory alloy (SMA) claim 1 , respectively.3. The camera module as claimed in claim 1 , further comprising a frame surrounding the base claim 1 , wherein the frame comprises a first accommodation portion and a second accommodation portion for accommodating the first drive element and the second element claim 1 , respectively.4. The camera module as claimed in claim 3 , further comprising a first guiding member and a second guiding member located in the first accommodation portion and the second accommodation portion claim 3 , respectively.5. The camera module as claimed in claim 4 , wherein the first drive element winds around the first guiding member claim 4 , and the second drive element winds around the second guiding member.6. The camera ...

LENS BARREL AND IMAGING DEVICE

A lens barrel and an imaging device utilizing the same includes a fixed cylinder that has a guide groove; a cam cylinder which is rotatably provided to the fixed cylinder and has a cam groove having a tapered section; and a moving lens support member that supports a moving lens and movably supports a cam follower that moves along the guide groove. The cam follower has a tapered contact section, which can be brought into contact with the tapered section of the cam groove, and is impelled radially outward by the cam follower impelling member.

OPTICAL APPARATUS

An optical apparatus includes a driving unit, a holder holding the driving unit, a moving member holding an optical member and movable by drive of the driving unit, and a guide fixed to the holder in parallel to an optical axis direction. The driving unit is fixed to the holder by a screw and a nut. The nut includes a first plane part. The nut is disposed so that the first plane part of the nut is substantially orthogonal to a line connecting a center of the guide and centers of the screw and the nut when viewed in the optical axis direction.

LENS DRIVING DEVICE

A lens driving device includes: a lens frame; a supporting unit that supports the lens frame in driving directions; a driving unit that drives the lens frame in one or both of a direction of an optical axis and a direction intersecting the optical axis; and a sensor that is mounted on the supporting unit and detects a position of the lens frame. The supporting unit includes: a circuit that is connectable to the sensor and integral with the supporting unit; and a recess that receives the sensor. The circuit has terminals exposed to a space inside the recess.

Lens Actuator

A lens actuator is disclosed. The lens actuator, according to the present invention, comprises: a carrier in which a lens is accommodated, and which has a plurality of first sides; magnets including first magnets respectively arranged on the outer side of the plurality of first sides of the carrier, and second magnets arranged to be spaced from the first magnets; a housing having a plurality of second sides facing the first sides; a plurality of correction coils formed at positions corresponding to the first and second magnets; and a gap-adjusting coil arranged on the lower part of the first magnets.

ELECTROMAGNETIC ACTUATOR

An electromagnetic actuator includes an optical element L which is movable with respect to an optical axial direction, an optical-element holder which holds the optical element, a coil which is installed to enclose the optical element L and the optical-element holder, and a coil holder which holds the coil, wherein at least one of the optical-element holder and the coil holder comprises magnetic material which generates a magnetic flux in a radial direction and the optical element L is disposed at an inner side of the magnetic material.

Lens Assemblies and Actuators for Optical Systems and Methods Therefor

An optical zoom in a small form factor suitable for use in mobile devices such as cell phones, security cameras, and other small-scale imaging systems. One or more Alvarez lens pairs are provided, and moved transversely to the optical axis. The combination of one or more Alvarez lens pairs and the actuator permits a zoom power of at least 3× with a lateral displacement distance of the optical components of approximately five millimeters or less.

OPTICAL PROJECTION DEVICE AND PROJECTOR

A optical projection device that projects an image with excellent image quality while achieving miniaturization is provided. The optical projection device includes a first lens frame holding a first lens group L and including a cam pin, a guide barrel including a straight movement groove, a cam barrel including a cam groove, and an urging portion that urges the first lens frame in a direction intersecting with the direction along an optical axis. The cam pin is formed at a position spaced apart from a center of gravity including the first lens frame and members attached to the first lens frame in the direction along the optical axis Ax and the urging portion urges the first lens frame at a position closer than the cam pin with respect to the center of gravity in the direction along the optical axis. 1. A optical projection device including a movable lens group movable along an optical axis , comprising:a movable lens frame including a holding portion which holds the movable lens group and a cam pin which protrudes from the holding portion;a guide barrel which includes a straight movement groove extending in the same direction as the direction along the optical axis and in which the cam pin is inserted into the straight movement groove;a cam barrel which includes a cam groove into which the guide barrel is fitted and with which the cam pin protruding from the straight movement groove is engaged and which is rotated with respect to the guide barrel to thereby guide the cam pin by the straight movement groove and the cam groove and move the movable lens frame along the optical axis; anda correction portion which corrects the inclination of the movable lens frame with respect to the optical axis.2. The optical projection device according to claim 1 ,wherein the cam pin is formed at a position spaced apart from the center of gravity including the movable lens frame and members attached to the movable lens frame in the direction along the optical axis,the correction ...

LENS BARREL AND IMAGING APPARATUS

A lens apparatus includes an optical system, a holding barrel configured to hold at least part of the optical system, an electric unit attached to the holding barrel, a control board configured to control the electric unit, a flexible printed circuits board configured to connect the electric unit and the control board to each other, a holding member attached to the holding barrel and configured to hold the flexible printed circuits board, and a fixing member configured to attach the holding member to the holding barrel. The flexible printed circuits board includes a first bent part, and the fixing member has a receiving surface configured to receive a reaction force from the first bent part. 1. A lens apparatus comprising:an optical system;a holding barrel configured to hold at least part of the optical system;an electric unit attached to the holding barrel;a control board configured to control the electric unit;a flexible printed circuits board configured to connect the electric unit and the control board to each other;a holding member attached to the holding barrel and configured to hold the flexible printed circuits board; anda fixing member configured to attach the holding member to the holding barrel,wherein the flexible printed circuits board includes a first bent part, and the fixing member has a receiving surface configured to receive a reaction force from the first bent part.2. The lens apparatus according to claim 1 , wherein the first bent part in the flexible printed circuits board is provided in a routing range between a connector of the flexible printed circuits board with the electric unit and the holding member.3. The lens apparatus according to claim 1 , wherein the holding member holds the flexible printed circuits board along an optical axis direction.4. The lens apparatus according to claim 1 , wherein the flexible printed circuits board contacts the receiving surface on the fixing member and thereby is positioned in a radial direction orthogonal ...

OPTICAL SYSTEM

An optical system includes a fixed module, a movable module and a driving assembly. The movable module moves relative to the fixed module, and the movable module includes a lens unit which includes a first lens, a second lens, a first side wall and a second side wall. The first side wall has a first surface, which directly contacts the second lens, and the second side wall directly contacts the first lens. A portion of the driving assembly is directly disposed on the lens unit, configured to drive the lens unit to move along an optical axis of the first lens. The first side wall further has a second surface opposite to the first surface, and the second surface directly contacts the portion of the driving assembly. The thickness of the first side wall is different from the thickness of the second side wall. 1. An optical system , comprising:a fixed module; a first lens;', 'a second lens;', 'a first side wall, comprising a first surface, wherein the first surface is in direct contact with the second lens; and', 'a second side wall, being in direct contact with the first lens; and, 'a movable module, movable relative to the fixed module, the movable module comprising a lens unit, and the lens unit comprisinga driving assembly, a portion of the driving assembly being directly disposed on the lens unit, configured to drive the lens unit to move along an optical axis of the first lens;wherein the first side wall further comprises a second surface opposite to the first surface, the second surface is in direct contact with the portion of the driving assembly, and a thickness of the first side wall is different from a thickness of the second side wall.2. The optical system as claimed in claim 1 , wherein the thickness of the first side wall is greater than the thickness of the second side wall.3. The optical system as claimed in claim 1 , wherein the second lens is partially exposed from the second side wall.4. The optical system as claimed in claim 1 , wherein the lens unit ...

ZOOM CONTROL APPARATUS, ZOOM CONTROL METHOD, AND STORAGE MEDIUM

An apparatus includes a control unit configured to perform zoom control based on a size of an object indicated by acquired information and a set reference size, and a first detection unit configured to detect a first operation for instructing to change the reference size. In a case where the first operation has been detected during the zoom control in a first mode, the control unit performs the zoom control in a second mode until a first time elapses after the first operation has been detected, and, when the first time has elapsed, the control unit switches the second mode to the first mode. In the first mode, the reference size is set to a predetermined size and, in the second mode, the reference size is changed according to the first operation.

LENS DRIVING MECHANISM

A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens. The first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction. 1. A lens driving mechanism for driving a first lens and a second lens to move , wherein light enters the first and second lenses along a light incident direction , the lens driving mechanism comprising:a first lens driving assembly, comprising a first magnetic element for driving the first lens to move; anda second lens driving assembly, comprising a second magnetic element for driving the second lens to move, wherein the first magnetic element is located adjacent to the second magnetic element, and the polar direction of the first magnetic element is different from the polar direction of the second magnetic element.2. The lens driving mechanism as claimed in claim 1 , wherein the polar direction of the first magnetic element is perpendicular to the polar direction of the second magnetic element.3. The lens driving mechanism as claimed in claim 2 , wherein the polar direction of the first magnetic element is parallel to the light incident direction claim 2 , and the polar direction of the second magnetic element is perpendicular to the light incident direction.4. The lens driving mechanism as claimed in claim 1 , wherein the first magnetic element comprises a multipolar magnetic element that has a first magnetic portion and a second magnetic portion claim 1 , and the polar directions of the ...

PLASTIC BARREL, AUTOFOCUS MODULE AND ELECTRONIC DEVICE

A plastic barrel includes an inner portion and an outer portion. The inner portion defines an interior space. The inner portion includes, in order from an object side to an image side, an object-side opening, a plurality of inner annular surfaces and an image-side opening. The interior space is configured for accommodating an imaging lens assembly, and the imaging lens assembly includes a plurality of plastic lens elements. The outer portion surrounds the inner portion. The outer portion includes a mounting structure. The mounting structure is disposed on a surface of the outer portion. The mounting structure is injection molded for mounting a planar conductive element and a wiring element. The mounting structure includes at least three gate traces, and the three gate traces are located on a surface of the mounting structure. 1. A plastic barrel , comprising:an inner portion defining an interior space, wherein the inner portion comprises, in order from an object side to an image side, an object-side opening, a plurality of inner annular surfaces and an image-side opening, the interior space is configured for accommodating an imaging lens assembly, and the imaging lens assembly includes a plurality of plastic lens elements; andan outer portion surrounding the inner portion, wherein the outer portion comprises a mounting structure, the mounting structure is disposed on a surface of the outer portion, the mounting structure is injection molded for mounting a planar conductive element and a wiring element, the mounting structure comprises at least three gate traces, and the at least three gate traces are located on a surface of the mounting structure; {'br': None, 'i': 'o/ϕi<', '0.05<ϕ0.80.'}, 'wherein a diameter of the object-side opening is ϕo, a diameter of the image-side opening is ϕi, and the following condition is satisfied2. The plastic barrel of claim 1 , wherein the plastic barrel is manufactured by injection molding claim 1 , and the plastic barrel is a black ...

Zoom lens and image pickup apparatus

A zoom lens includes: a master lens including in order from an object side: a positive first lens unit configured not to move for zooming; a negative second lens unit configured to move for zooming; at least one lens unit configured to move for zooming; and a positive relay lens unit arranged closest to the image side; and an extender lens unit configured to change a focal length range of the zoom lens by one of: being inserted in place of a lens unit arranged adjacent to the relay lens unit on the object side; and being inserted into a space adjacent to the positive relay lens unit on the object side, wherein the extender lens unit includes a positive lens Gp, and an Abbe number and a partial dispersion ratio of the positive lens Gp are suitably set.

LENS DRIVING APPARATUS, CAMERA MODULE, AND OPTICAL INSTRUMENT

The present embodiment relates to a lens driving apparatus, comprising: a cover member; a housing disposed inside the cover member; a bobbin disposed inside the housing so as to move in a first direction; a first coil disposed on an outer circumferential surface of the bobbin; a first magnet coupled to the housing; an upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; a base disposed on a the lower side of the housing and coupled to the cover member; a substrate disposed between the housing and the base and including a circuit member having a second coil disposed to be opposite to the first magnet; and a plurality of support members connected to the upper elastic member and the substrate; wherein each of the plurality of support members is disposed in the proximity of the edge of the upper elastic member, and wherein the support members are connected to the upper elastic member at a position where a length in the x direction and a length in the y direction are different on the basis of the edge of the upper elastic member. 1. A lens driving device comprising:a housing;a bobbin disposed in the housing;a base below the housing;a first coil disposed on the bobbin;a magnet disposed on the housing and facing the first coil;a circuit board disposed on the base and comprising a second coil facing the magnet;an upper elastic member connecting the housing and the bobbin; anda support member electrically connecting the upper elastic member and the circuit board,wherein the housing comprises an upper surface facing the upper elastic member,wherein the upper surface of the housing comprises a first surface, a second surface disposed lower than the first surface and a third surface disposed lower than the second surface,wherein a portion of the upper elastic member is disposed on the first surface of the housing,wherein the housing comprises a hole formed on the third surface, andwherein the support member passes through the ...

LENS ASSEMBLY

Embodiments relate to a lens assembly, a lens driving apparatus, and a camera module comprising same. A lens assembly according to an embodiment may comprise: a first pin; a first housing which moves along the first pin; a first lens group arranged in the first housing; and a first wheel which is arranged in the first housing and moves along the first pin. The first wheel may include a first rotation shaft coupled to the first housing, and a first rotation part which rotates about the first rotation shaft. The first rotation part may include a groove corresponding to the first pin, wherein the maximum depth of the groove may be less than one-half the maximum thickness of the first pin in a direction perpendicular to the first rotation shaft. 1. A lens assembly comprising:a first pin;a first housing moving along the first pin;a first lens group disposed in the first housing; anda first wheel disposed on one side of the first housing and moving along the first pin,wherein the first wheel comprises a first rotation shaft coupled to the first housing and a first rotation part rotating about the first rotation shaft,wherein the first rotation part comprises a groove corresponding to the first pin, andwherein a maximum depth of the groove is less than 1/2 of a maximum thickness of the first pin in a direction perpendicular to the first rotation shaft.2. The lens assembly according to claim 1 , wherein the first rotation shaft of the first wheel is fixed to the first housing claim 1 , and the first rotation part is rotated.3. The lens assembly according to claim 1 , wherein the first rotation part of the first wheel and the first rotating shaft are integrally formed and are rotated together.4. The lens assembly according to claim 1 , wherein the first rotation shaft is disposed in a hole formed in the first housing.5. The lens assembly according to claim 1 , comprising a bushing between the first rotation shaft of the first wheel and the first housing claim 1 ,wherein the ...

SPECTROMETERS HAVING A VARIABLE FOCUS LENS WITH A SINGLE AIR GAP

The technology provides a spectroscopy system having two or more spectrometers with substantially uniform focal lengths. The spectrometers include a detector that converts optical signals into electrical signals to render spectral data. The spectroscopy system includes a computing device that is electrically coupled to one or more detectors to receive the spectral data and compare the spectral data against other spectral data. The other spectral data originates from spectrometers that have substantially similar focal lengths, slit widths, excitation laser wavelengths, or any combination of these. The technology includes an application server that is communicatively coupled to a second spectroscopy system. The application server includes software that enables data sharing among the two or more spectroscopy systems, including sharing the spectral data and the other spectral data. The application server compares sampled spectral data against stored spectral data to identify a match. 1. A spectroscopy system , comprising: a collimating lens that receives light rays therethrough;', 'a grating that is optically coupled to the collimating lens; and', a first body that includes a first lens set;', 'a second body that includes a second lens set; and', 'an air gap defined between the first lens set and the second lens set, the first and second bodies being moveable relative to each other to adjust a size of the air gap in order to modify a size of a spectral image in a first dimension according to a first amount and in a second dimension according to a second amount, the first amount being different than the second amount;, 'a focus lens that is optically coupled to the grating, the focus lens having], 'a spectrometer that is optically coupled to an excitation source and a probe through a probe assembly, the spectrometer comprisinga detector optically coupled to the focus lens, wherein the detector converts optical signals into electrical signals to render spectral data, ...

DOME-TYPE CAMERA AND DOME COVER

A dome-type camera includes a dome cover () and a camera unit (). The dome cover () has a front surface () and a back surface (). The camera unit () includes an optical system () and an imaging element (). The optical system () is disposed on the back surface () side of the dome cover (), and the imaging element () outputs image data on the basis of imaging light received via the optical system (). At least the back surface () out of the front surface () and the back surface () of the dome cover () has at least an aspheric shape in which optical properties are continuously changed at a location other than a top t of the dome cover (). 1. A dome-type camera comprising:a dome cover having a front surface and a back surface; anda camera unit includingan optical system disposed on the back surface side of the dome cover, and an imaging element that outputs image data on the basis of imaging light received via the optical system,wherein at least the back surface out of the front surface and the back surface of the dome cover has an aspheric shape in which optical properties are continuously changed at least at a location other than a top of the dome cover,wherein at least the back surface out of the front surface and the back surface of the dome cover has a hyperelliptical shape in a longitudinal section of the dome cover.2. The dome-type camera according to claim I ,wherein the dome cover is detachably mounted on the camera unit.3. The dome-type camera according to claim 2 , further comprising:a cover identification part that is provided in the dome cover and shows the type of the dome cover; anda cover specification part that specifies the type of the dome cover on the basis of the cover identification part.4. The dome-type camera according to claim 3 ,wherein the cover identification part includes a unique shape portion according to the type of the dome cover, andwherein the cover specification part specifies the type of the dome cover by detecting the unique shape ...

LENS BARREL AND IMAGING DEVICE

A lens barrel having an image forming optical system including a first optical system and a second optical system which is moveable independently from the first optical system, a first driving portion which drives the first optical system during a magnification changing operation of the image forming optical system, and a second driving portion which drives the second optical system during the magnification changing operation, along with driving the second optical system during a focus adjustment of the image forming system. 1. A lens barrel comprising:an image forming optical system including a first optical system and a second optical system,a first holding member which holds the first optical system;a second holding member which holds the second optical system;a first driving portion which drives the first holding member in an optical axis direction during a magnification changing operation of the image forming optical system,a guide shaft which is provided along the optical axis direction, fixed to the second holding member, and supports the second holding member so as to be movable integrally in the optical axis direction; anda second driving portion which drives the second holding member independently from the first holding member in the optical axis direction by driving the guide shaft in the optical axis direction during focus adjustment of the image forming optical system and during the magnification changing operation.2. The lens barrel according to claim 1 , whereinthe second optical system is disposed further towards an image forming face side than the first optical system.3. The lens barrel according to claim 1 , further comprising a cam ring having a cam which engages with the first holding member claim 1 , wherein the first driving portion drives the first holding member by rotating the cam ring.4. The lens barrel according to claim 1 , further comprising a support member that is provided at two different positions in the optical axis direction at the ...

LENS BARREL

Provided is a lens barrel whose diameter can be reduced. The lens barrel includes a rotary frame having a gear on an inner peripheral surface, and a retracting lens frame which holds a retracting lens configured to retract from an optical axis along with rotation of the rotary frame. A position where the retracting lens retracts is where the gear of the rotary frame is located when the retracting lens is positioned on the optical axis. The rotary frame includes a first cam groove on an outer peripheral surface, and a second cam groove on the inner peripheral surface. The lens barrel also includes a first lens frame having a first cam follower which is mounted on the first cam groove, and a second lens frame having a second cam follower which is mounted on the second cam groove. The retracting lens frame is held by the second lens frame. 1. A lens barrel comprising:a rotary frame having a gear on an inner peripheral surface; anda retracting lens frame which holds a retracting lens configured to retract from an optical axis along with rotation of the rotary frame,wherein a position where the retracting lens retracts is a position where the gear of the rotary frame is located when the retracting lens is positioned on the optical axis.2. The lens barrel according to claim 1 , whereinthe rotary frame includes a first cam groove on an outer peripheral surface, and a second cam groove on the inner peripheral surface,the lens barrel further comprising:a first lens frame having a first cam follower which is mounted on the first cam groove; anda second lens frame having a second cam follower which is mounted on the second cam groove,wherein the retracting lens frame is held by the second lens frame.3. The lens barrel according to claim 1 , further comprising a zooming motor for rotating the rotary frame claim 1 ,wherein a position where the retracting lens retracts is a position where the retracting frame and the zooming motor are arranged parallel to each other in an optical ...