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| Number | Title | Issue Date |
| 8145052 | Aperture controlling system An aperture controlling system includes a CMOS image sensor, a brightness encoder, an aperture and an aperture driving circuit. The brightness encoder is used for extracting brightness information sensed by the CMOS image sensor and converting the brightness informa... | 03/27/2012 |
| 8081874 | Interchangeable lens and camera body An interchangeable lens which is mountable to a camera body and operates according to a command from the camera body includes a diaphragm operable to regulate an amount of light from a subject by changing an aperture, a drive unit operable to change the aperture of ... | 12/20/2011 |
| 8064762 | Imaging apparatus and imaging lens unit An imaging apparatus includes: continuous imaging mode setting means for setting a continuous imaging mode in which a plurality of captured images including first and second captured images are continuously acquired; and diaphragm control means for controlling a dia... | 11/22/2011 |
| 7885534 | Light-amount adjusting system and optical apparatus The light-amount adjusting system includes a light-amount adjusting unit that changes a size of an aperture through which light passes, an actuator that drives the light-amount adjusting unit, and a detector that detects an aperture state of the light-amount adjusti... | 02/08/2011 |
| 7593634 | Digital camera The present invention discloses a digital camera having a live view mode for continuously capturing and displaying a series of subject images, in which when the live view mode is selected, a computation part initializes an aperture mechanism based on photographing l... | 09/22/2009 |
| 7539408 | Single-lens reflex camera system The single-lens reflex camera body is provided with: a detector that detects which of a first lens unit or a second lens unit is attached; a rotation operator which accepts a rotating operation to adjust a diaphragm value of the lens unit attached to the camera body... | 05/26/2009 |
| 7151570 | Imaging apparatus with interchangeable lens apparatus, the lens apparatus having a memory for storing optical performance data of the lens apparatus An optical apparatus including an imaging apparatus and a lens apparatus each having a communicating portion performing communications is disclosed. The optical apparatus is provided with: an imaging optical unit; a memory in which information of an optical performa... | 12/19/2006 |
| 7133608 | Camera A camera divides a light beam having passed through a taking lens unit into two light beams. One light beam forms an image on a silver salt film. Another light beam forms an image on a CCD. A light path for said another light beam is provided with an aperture diaphr... | 11/07/2006 |
| 7016123 | Lens apparatus and image taking apparatus A lens apparatus which enables to reduce size is disclosed. The lens apparatus has a first member which is movable in the optical axis direction and holds a first lens unit; a second member which holds a second lens unit and the first member; a first motor which is ... | 03/21/2006 |
| 6992720 | Optical apparatus including image pick-up device and interchangeable lens with controller for controlling change of aperture This invention discloses an optical apparatus including an image pickup optical unit, a light quantity adjustment unit inserted in the optical axis of the image pickup optical unit, the light quantity adjustment unit changing the aperture diameter to change the ligh... | 01/31/2006 |
| 6744981 | Camera with diaphragm restriction clearing section It is an object of the present invention to provide a camera that can take a bright photograph in a dark place. If a light value is equal to or smaller than a predetermined value, an aperture regulation for a diaphragm is cleared, and the aperture of the diaphragm i... | 06/01/2004 |
| 6701078 | Camera and shutter device A camera includes a movable aperture stop plate, which changes over a light path of object light between plural stop states. A depressible shutter release button is provided. A shutter mechanism is released in response to depression of the shutter release... | 03/02/2004 |
| 6621988 | Camera utilizing an aperture set up handler A camera includes a lens barrel capable of extending and collapsing in which when the lens barrel is extended, exposures are possible. The camera includes an aperture member in which any one of a plurality of aperture values can be selected, an aperture s... | 09/16/2003 |
| 6618561 | Stop changing device for a camera A lens-fitted photo film unit is provided with a movable stop plate formed with small and middle stop apertures. The small stop aperture has a smaller diameter, and the middle stop aperture is larger than the small stop aperture. A fixed large stop apertu... | 09/09/2003 |
| 6539176 | Photometry device for camera In a photometry device, a pair of transistors having the same properties. The first transistor is connected at its base to the CdS photo sensor, and at its collector to a resistor. The second transistor is connected at its base to the resistor, and at its... | 03/25/2003 |
| 6493513 | Exposure control device for camera preventing shutter release before aperture changeover A shutter device for a camera includes a shutter blade for providing an exposure by opening/shutting a photographic light path, and a shutter drive lever for driving the shutter blade. The shutter device includes a shutter release button. A photometric sw... | 12/10/2002 |
| 6456786 | Lens-equipped film unit A lens-equipped film unit comprises a photographing mechanism including a photographic lens, a shutter of a fixed speed, an aperture and a strobe, and an unexposed photographic film has being charged therein. The photographing mechanism satisfying the rel... | 09/24/2002 |
| 6443637 | Camera with electrostatic light valve that functions as diaphragm The diaphragm for an objective lens in a camera includes a circular series of coilable resilient opaque electrodes that are biased to curl into respective coils radially outward to make the size of an aperture larger and are electrostatically actuatable t... | 09/03/2002 |
| 6442343 | Exposure control device for camera A first stop plate with a small stop opening is disposed behind a taking lens, and a second stop plate with a middle stop opening is disposed between a first and second lens, which comprise the taking lens. Upon moving a changeover knob to an ON position,... | 08/27/2002 |
| 6397011 | Camera with automatic stop change device A first light guide and a second light guide are attached to a flash charge switch. Each light guide is arranged in a direction where the flash charge switch is slid. If the flash charge switch is in an OFF position, the first light guide transmits light ... | 05/28/2002 |
| 6363222 | Automatic exposure control device for a camera A photo diode and a resistor are connected to each other in series. A gate of a FET is connected to the connection of the photo diode and the resistor. When a photometry switch is turned on, the photo diode generates a photo current according to a subject... | 03/26/2002 |
| 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 |
| 6141499 | Camera capable of displaying the level of visual effect A camera is provided with a photographing device for setting various photographing conditions which determine a state of a subject image to be obtained as a picture, the photography device including an exposure device having a Plurality of selectively set... | 10/31/2000 |
| 6070016 | Lens control device A lens control device which uses a zoom lens in which the state of marginal light quantity varies according to each focal length is arranged to compensate for a variation in marginal light quantity during zooming by detecting the focal length and controll... | 05/30/2000 |
| 5966550 | Automatic focusing apparatus in a camera An automatic focusing apparatus of a camera includes a photographing lens having a focusing lens group and a focus control mechanism which moves the focusing lens group to a hyper-focal distance position when no effective object distance is obtained.... | 10/12/1999 |
| 5960217 | Wide range focusing camera In a wide range focusing camera, a cooperating engagement members are provided in moveable parts of a focusing mechanism and an aperture opening selecting mechanism so as to force the latter into selecting a smaller one of the aperture opening areas when ... | 09/28/1999 |
| 5895133 | Exposure mode selecting device An exposure mode selecting device uses an A-position AE mode code, an M-position AE mode code, and a no-aperture-ring AE mode code, so that a proper exposure mode is selected. When an interchangeable lens, having an aperture ring being set to an A-positio... | 04/20/1999 |
| 5664243 | Camera A camera divides a light beam having passed through a taking lens unit into two light beams. One light beam forms an image on a silver salt film. Another light beam forms an image on a CCD. A light path for said another light beam is provided with an aper... | 09/02/1997 |
| 5619296 | Electromagnetic mechanism for providing a hard stop for moving blade aperture systems An improved hard stop for use with an aperture mechanism is comprised of at least one blade moveable along a path between a closed position and at least one open position, and at least one hard stop that is moveable between a first position, out of the bl... | 04/08/1997 |
| 5602614 | Camera A camera includes a distance detecting device arranged to detect a distance from the camera to an object to be photographed and to output distance information, a flash amount deciding part arranged to decide an amount of flash emission on the basis of the... | 02/11/1997 |
| 5602617 | Light metering device with adjustable output A light metering device incorporates a light dependent resistor as a light sensing element, a network including a plurality of circuit elements, and a selection mechanism for selectively connecting the light dependent resistor to one of the plurality of c... | 02/11/1997 |
| 5587766 | Camera which sets an internal aperture value in accordance with a converted photographic lens aperture value A camera which sets an aperture value of an internal aperture in accordance with the open aperture value of a photographic lens aperture of an installed photographic lens. A reduction optical system reduces an optical image formed by the photographic lens... | 12/24/1996 |
| 5568213 | Diaphragm control device for a camera A diaphragm control device for a camera capable of controlling a diaphragm member with a high level of precision is disclosed. The camera and diaphragm control device are equipped with a mirror member that moves from the down position to the up position d... | 10/22/1996 |
| 5532782 | Camera having a depth priority operation mode A camera having a depth priority operation mode calculates a stop value and perform photography such that multiple objects at different distances all enter into the photographic depth of field. When the calculated stop value is less than the smallest poss... | 07/02/1996 |
| 5528334 | System and method for recording successive images of the same object at varying depths of field A system and method for recording successive images of the same object at varying depths of field. An automatic distance measuring circuit measures the distance from an object, and a brightness measuring circuit measures the ambient brightness around the ... | 06/18/1996 |
| 5486894 | Camera with exposure control interlocked with lens movement A camera comprising an exposure control circuit for controlling the exposure in accordance with the output of a light measuring circuit receptive of light at a different position from that of a photographic lens system, a distance detecting circuit for au... | 01/23/1996 |
| 5463442 | Interchangeable lens unit for use in camera system An interchangeable lens unit for use in a camera system which is arranged to drive a motor in the interchangeable lens on the basis of a signal supplied from a camera body. The interchangeable lens unit is provided with a circuit for continuously transmit... | 10/31/1995 |
| 5459544 | Camera with a shape memory alloy member A camera for exposing photosensitive medium such as a film and a CCD. The camera includes: a lens system for forming a light image on the photosensitive medium; a portion of the camera which requires a control mechanism for a better result of exposing suc... | 10/17/1995 |
| 5459512 | Image pickup apparatus with automatic and manual exposure control A video camera provided with a diaphragm operating speed control circuit for selecting different operating speeds for the diaphragm for exposure control, in automatic exposure control and in manual exposure control.... | 10/17/1995 |
| 5459511 | Camera having improved positioning of a variable aperture A camera having improved positioning of a variable aperture. A picture taking lens forms an image of a subject on an image forming plane. A picture taking optical system has a picture taking optical path which extends from the image forming plane to an im... | 10/17/1995 |
