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| Number | Title | Issue Date |
| 7744295 | Aperture mechanism, optical apparatus and manufacturing method thereof To provide an aperture mechanism and an optical apparatus which are reduced in size. The aperture mechanism comprising: a driving member to be driven in accordance with an aperture operation; an aperture member having an aperture to be driven by the driving member; ... | 06/29/2010 |
| 7430369 | Image capture apparatus and control method therefor An image capture apparatus, such as a digital camera or a digital still camera, is capable of easily capturing an optimal image by determining a state of a subject via image processing during capturing, and executing re-capturing or giving a warning to prompt re-cap... | 09/30/2008 |
| 7313323 | Camera system with a photometering device and an external operating device A camera system includes a camera body including a photometering device and an external operating device, and a photographing lens which is detachably attached to the camera body, the photographing lens including an aperture setting device for selecting an auto aper... | 12/25/2007 |
| 7126766 | Optical stop apparatus and exposure apparatus having the same An optical stop unit includes plural light blocking plates, and a cam mechanism for driving the plural light blocking plates to vary an aperture diameter, the cam mechanism including a cam follower and a cam groove, wherein the cam follower and cam groove have mutua... | 10/24/2006 |
| 6714362 | Lens shutter mechanism A lens shutter mechanism includes, between front and rear support frames having photographing apertures, shutter sectors which open and close the photographing apertures; a shutter drive ring which is rotatable about the optical axis to drive the shutter sectors; di... | 03/30/2004 |
| 6178296 | Camera and camera system A camera for use with a flash device capable of performing a test light emitting action and a lens device having a diaphragm includes a lens diaphragm control instructing part for giving an instruction for an aperture controlling action of the diaphragm o... | 01/23/2001 |
| 5892990 | Control method of preview apparatus in AF single lens reflex camera and preview apparatus in AF single lens reflex camera A method for controlling a preview apparatus which is actuated by a preview switch which can be actuated externally, in an AF single lens reflex camera, wherein when the preview switch is turned ON, the AF operation is carried out before a stop-down opera... | 04/06/1999 |
| 5884110 | Automatic diaphragm apparatus for lens An automatic diaphragm apparatus in a lens in which an aperture diameter is varied in accordance with a set diaphragm value, set by a diaphragm set ring in a first section from the maximum aperture to a predetermined intermediate aperture. The aperture di... | 03/16/1999 |
| 5878296 | Preview apparatus in single lens reflex camera A preview apparatus in a single lens reflex camera is provided in which a mirror drive mechanism, a diaphragm drive mechanism, and a shutter are driven in association with the rotation of a single-revolution cam gear which is driven by a motor. When the r... | 03/02/1999 |
| 5864725 | Control method of single lens reflex camera having preview function and single lens reflex camera A method for controlling a single lens reflex camera having a preview function is provided in which a mirror drive mechanism, a diaphragm drive mechanism, and a shutter are driven in association with the rotation of a single-revolution cam gear which is d... | 01/26/1999 |
| 5854948 | Photographic lens focusing system and method which compensates for size of aperture A focus setting system for a camera in which a photographer can observe a focused subject image in a viewfinder and which corrects the focus prior to exposure such that a photographed picture is in focus. Specifically, the focusing system corrects for err... | 12/29/1998 |
| 5270759 | Apparatus for stopping down diaphragm to an intermediate setting, upon setting diaphragm to a desired setting A diaphragm apparatus of a lens includes a diaphragm opening and closing ring and a diaphragm supporting ring for supporting a plurality of diaphragm blades and for opening and closing a diaphragm aperture in accordance with the relative rotation of the d... | 12/14/1993 |
| 5257052 | Electrically driving apparatus of mirror in single-lens reflex camera A mirror driving apparatus of a single-lens reflex camera has a mirror box, a mother plate which is provided on the side face of the mirror box to support a gear train and a mirror box mechanism which is driven by the gear train, and a motor having a driv... | 10/26/1993 |
| 5250971 | Apparatus for stopping down diaphragm to an intermediate setting, upon setting diaphragm to a desired setting A diaphragm apparatus of lens includes diaphragm opening and closing ring and a diaphragm supporting ring for supporting a plurality of diaphragm blades and for opening and closing a diaphragm aperture in accordance with the relative rotation of the diaph... | 10/05/1993 |
| 5150141 | Electric drive device for camera An electric drive device for a camera, for driving a movable mirror and a lens diaphragm by a motor and also charging a shutter, comprises a shutter drive device for activating a focal plane shutter having curtains running along a predetermined plane for expos... | 09/22/1992 |
| 4835558 | Position control device for use in a camera A position control device which comprises a ratch wheel adapted to rotate in interlock with motion of an object to be positioned, a rotation detecting unit adapted to detect an amount of rotation of the ratch wheel, a combination solenoid provided with a ... | 05/30/1989 |
| 4831400 | Stop-down signal adjusting circuit in automatic aperture control camera The oscillation wave signal generated during lens stop-down is amplified by an adjustable gain amplifier the gain of which is controlled in accordance with the peak value of the oscillation wave signal detected during a predetermined time period, to there... | 05/16/1989 |
| 4692010 | Depth-of-field preview apparatus for a single lens reflex camera A depth-of-field preview apparatus for a single lens reflex camera is provided with a display circuit responsive to a preview display signal generated by a control circuit with at least one of first and second switches being closed. The first switch is cl... | 09/08/1987 |
| 4504134 | Photographic objective with automatic diaphragm A compensating mechanism is provided on the leaf guide ring of a photographic objective for single-lens mirror reflex camera which opens to its largest value after a picture is taken in response to the hinge motion of the camera reflex mirror. The mechani... | 03/12/1985 |
| 4443083 | Driving apparatus in a camera In a single lens reflex camera having a reflecting mirror provided across the light path of a light beam travelling toward a film surface past the stop of a phototaking lens so as to be retractable from the light path, an apparatus for driving the stop de... | 04/17/1984 |
| 4416527 | Apparatus of preventing bound of diaphragm blades in camera In a diaphragm actuator of a lens of a camera comprising a stationary support ring, a blade ring which is rotatable in the support ring and which has pivotable diaphragm blades movably connected to the support ring so that the rotational movement of the b... | 11/22/1983 |
| 4411510 | Apparatus for compensating for the rebounding of an automatic diaphragm in a photographic objective Apparatus for at least partially compensating for the rebound impact of an automatic diaphragm in a photographic objective comprising a diaphragm control ring for driving the leaves of the diaphragm and a diaphragm preselector ring for predetermining the ... | 10/25/1983 |
| 4395106 | Compensation for diaphragm control in SLR camera A camera has first and second displaceable actuators and a diaphragm adjustable between a maximum aperture value and a minimum aperture value responsive to displacement of the second actuator. A first signal is generated that is representative of the disp... | 07/26/1983 |
| 4367939 | Automatic aperture presetting device An automatic aperture presetting device for a camera lens having a crank lever pivotally mounted on a preset ring which is rotatable around the optical axis of the lens. The end of one arm of the lever is in abutment against the edge of a cam which is mou... | 01/11/1983 |
| 4348088 | Single lens reflex camera A single lens reflex camera having a main mirror with a coating which is partly light-permeable in at least a portion thereof, the main mirror being pivotable into and out of an operative position where the light entering through an objective lens is refl... | 09/07/1982 |
| 4344688 | Interchangeable lens assembly An interchangeable lens of the automatic present diaphragm aperture type for a single lens reflex camera includes a swingable actuating lever spring biased to an advanced position and retracted and released by a control member retracted and advanced by th... | 08/17/1982 |
| 4339192 | Cable release attachable to a camera shutter Cable release arrangement which is connectable to the shutter of a camera, comprising two flexible power transmitting members which are provided, at one corresponding end, with an actuating handle formed as a common housing, and, at the other correspondin... | 07/13/1982 |
| 4336990 | Diaphragm control system A control system for diaphragms of photographic cameras, of the type where the diaphragm is in a lens assembly interchangeably mounted on the camera, and the camera contains mechanism for controlling the aperture of the diaphragm. The diaphragm blades are... | 06/29/1982 |
| 4319824 | Rebound damping means for fast-closing photographic diaphragms A diaphragm for photographic cameras and the like, of the type where the diaphragm closes down rapidly from a wide open aperture for viewing to a preselected smaller aperture for picture taking, immediately prior to the actual exposure. The usual slotted ... | 03/16/1982 |
| 4264178 | Diaphragm device of a photographic lens This specification discloses the diaphragm device of a photographic lens in which the stop-down operating performance over the entire area from the maximum aperture to the minimum aperture is made uniform and no aperture error occurs in the practical aper... | 04/28/1981 |
| 4260233 | Diaphragm mechanism of a photographic lens A diaphragm mechanism of a photographic lens comprises a plurality of diaphragm blades defining an aperture opening, a stop-down lever, transmission means for transmitting the movement of the stop-down lever to the diaphragm blades to displace them and de... | 04/07/1981 |
| 4201461 | Stop-down device in a bellows device In a stop-down device in a bellows device having a lens mount, operating levers are provided on both the left and right side surfaces of the lens mount so as to ensure that a stop-down knob always assumes the same position even if the lens with the lens m... | 05/06/1980 |
| 4199247 | Photographic diaphragm with two independent sets of leaves A photographic diaphragm of the iris type, having two sets or series of diaphragm leaves instead of the usual single set. Each leaf is relatively narrow in a direction radially with respect to the optical axis, thereby reducing the radial dimensions of th... | 04/22/1980 |
| 4119981 | Single lens reflex camera and exposure measuring mechanism therefor A single-lens reflex camera having an interchangeable objective lens and an exposure measuring circuit is provided with an adjusting device capable of being connected to a coupling element of a diaphragm stop adjuster and movable in opposition to a spring... | 10/10/1978 |
| 4095246 | Bellows setting equipment Equipment for the setting of the bellows between an objective and a camera. An arrangement is devised to reduce play and inaccuracy by the use of a control and operating member acting on an intermediate element of a gear train between the elements control... | 06/13/1978 |
| 4095247 | Interchangeable objective for cameras An interchangeable objective for a camera to provide diaphragm control. The objective has an objective tube and a lens mounting axially movable in the tube. A bayonet ring is provided for connecting the objective tube to a camera. Further means are provid... | 06/13/1978 |
| 4081811 | Diaphragm preselector for camera objective An iris diaphragm of a reflex camera, spring-biased into a wide-open position, is settable to a preselectable stop position via a linkage including a cam follower on an integral extension of a resilient swing ring oscillatable about an off-axial fulcrum. ... | 03/28/1978 |
| 4079401 | Diaphragm preselector for camera objective An iris diaphragm of a reflex camera, spring-biased into a wide-open position, is settable to a preselectable stop position via a linkage including a cam follower on a swing ring oscillatable about an off-axial fulcrum. The cam follower coacts with a cam ... | 03/14/1978 |
| 4042943 | Stopping device for bellows and close photography ring A stopping device is provided for stopping at an optional predetermined position the stop of a phototaking lens which has been in the fully open position when the lens was mounted. A stop interlocking member engages with a stop lever of the phototaking le... | 08/16/1977 |
| 4032942 | Pressure type lens tube for single lens reflex camera for incorporation in a follow-up type aperture-controlled camera A lens tube for a single-lens reflex camera having a plurality of aperture blades normally pressed in the aperture-enlarging direction comprises an interlocking member operably associated with the aperture blades, a limiting member for stopping the interl... | 06/28/1977 |
