Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7096737 | Pressure sensing apparatus A Pressure Sensing Apparatus is disclosed. Also disclosed is an apparatus that provides increased pressure sensitivity without added cost and complexity in the electronic detector circuitry. The apparatus further is less sensitive to gravity, vibrations or other ext... | 08/29/2006 |
| 6944328 | METHOD AND APPARATUS OF GENERATING THREE DIMENSIONAL IMAGE DATA HAVING ONE FILE STRUCTURE AND RECORDING THE IMAGE DATA ON A RECORDING MEDIUM, AND RECORDING MEDIUM FOR STORING THE THREE DIMENSIONAL IMAGE DATA HAVING ONE FILE STRUCTURE A stereo digital camera which generates a three-dimensional image or stereograph having one file structure, and records the three-dimensional image on a recording medium includes a stereo adapter having optical axes corresponding to parallax, an imaging lens for tra... | 09/13/2005 |
| 6603928 | Photometry device A photometry device for a camera is provided with a normal light sensor having a spectral sensitive characteristics close to those of a human eye, and a plurality of colorimetric sensors. The device further includes a photometry value determining system, ... | 08/05/2003 |
| 6571058 | Photometry device A photometry device for a camera is provided with a normal light sensor having a plurality of photometry areas, and a plurality of photometric sensors for colorimetry. A photometry value determining system determines a photometry value at each photometry ... | 05/27/2003 |
| 6546202 | Lens driving apparatus The present invention provides a lens driving apparatus which can accurately detect the position of a movable lens group while preventing the apparatus from increasing in size and cost by using a simple position detecting sensor. A first lens group, a sec... | 04/08/2003 |
| 5999752 | Exposure controller for use in a camera An exposure controller for use in a photographing apparatus including a flash, includes a diaphragm having a changeable opening to adjust the amount of light reaching a photosensitive medium from a lens optical system, a diaphragm control unit for changin... | 12/07/1999 |
| 5999753 | Single-lens reflex camera A single-lens reflex camera with a full-aperture metering part includes a lens having an automatic diaphragm part, a lens mount, and an information transmitting part for transmitting information for full-aperture metering error compensation, and a camera ... | 12/07/1999 |
| 5729783 | Stretched diaphragm aperture for an optical system An aperture mechanism for controlling the aperture of an optical system includes a flexible diaphragm having an opening at its center for forming a first aperture value for the optical system and means for stretching the diaphragm to enlarge the opening a... | 03/17/1998 |
| 5671450 | Stereo image forming adapter A stereo image forming adapter mounted forwardly of the zoom lens of a camera is provided with a plurality of deflecting members disposed at spacing intervals for deflecting light from an object, and a reflecting member for reflecting light flux from each... | 09/23/1997 |
| 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 |
| 5111234 | Camera system with means for varying exposure control data In a camera adapted to function with stored data, aperture value data is stored at a predetermined step in accordance with a manual operation of a manually operable member and digital data, showing a controllable range of an aperture diaphragm of an inter... | 05/05/1992 |
| 5051769 | Flash system An aperture value determining apparatus in taking photographs with flash light in accordance with the present invention receives a full open aperture value of a taking lens employed, information in association with object distance, information in associat... | 09/24/1991 |
| 5012268 | Exposure control device for interchangeable lens camera An exposure control device for an interchangeable-lens camera in which factors preventing the establishment of a relationship which ensures proper matching of the photographing lens and the camera body on both the lens side and the camera body side are ta... | 04/30/1991 |
| 5003336 | Camera system According to this invention, a camera system has a camera body and a first and second lenses exchangeable to the camera body. The first lens comprises a device for outputting first data which indicates the first lens belongs to a first lens type. The seco... | 03/26/1991 |
| 4985726 | Photometric device for camera A photometric device for a camera arranged to measure light by dividing a photographing field into a plurality of areas and to permit use of an interchangeable lens. The device computes a measured light value using information obtained from the interchang... | 01/15/1991 |
| 4912498 | Camera system capable of interchanging its objective lens A camera system comprising a camera body and an interchangeable lens assembly adapted to be coupled to the camera body. The interchangeable lens assembly has no manipulatable aperture adjusting ring, but has an aperture mechanism and a read-only memory bo... | 03/27/1990 |
| 4878076 | Exposure controlling system and interchangeable lens therefor An exposure controlling system wherein functional restrictions are little even when a cata-dioptric lens is mounted as an interchangeable lens and also provide an interchangeable lens for such an exposure controlling system. The exposure controlling syste... | 10/31/1989 |
| 4814812 | Multimode cameras A multimode camera comprises an independently settable aperture and shutter to set the aperture and shutter speed to preset, optional values. An AV-TV characteristic line is determined in accordance with the aperture and shutter speed which have been indi... | 03/21/1989 |
| 4748468 | Exposure display device An exposure display device for a camera, which can display not only the density of the background to be photographed on a film but also the density of a primary object to be focused with respect to an exposure control value used for exposure control opera... | 05/31/1988 |
| 4688922 | Display method and apparatus for camera A display method and apparatus for a camera wherein when there is a possibility of achieving an optimal exposure for a preset aperture by closing or opening a diaphragm, a warning is displayed, so that the operator is informed of the fact that an optimal ... | 08/25/1987 |
| 4639112 | Camera system capable of interchanging its objective lens A camera system comprising a camera body and an interchangeable lens assembly adapted to be coupled to the camera body. The interchangeable lens assembly has no manipulatable aperture adjusting ring, but has an aperture mechanism and a read-only memory bo... | 01/27/1987 |
| 4623234 | Camera An automatic exposure control camera is arranged to permit selection of a stop-down aperture priority mode in which an actually stopped down aperture has priority when a specific lens is mounted on the camera.... | 11/18/1986 |
| 4601567 | Exposure control apparatus for camera An exposure control apparatus for a camera of light intensity feedback metering system calculates an aperture to be closed, generates a correction value in accordance with a calculation result, and determines an exposure in accordance with the correction ... | 07/22/1986 |
| 4577952 | Photographic camera having a diaphragm actuator with preliminary displacement for lens compensation A camera has a displaceable actuator in a diaphragm adjustable between a maximum aperture value and a minimum aperture value responsive to displacement of the actuator. A first signal representative of the displacement of the actuator is generated. A seco... | 03/25/1986 |
| 4572638 | Intermediate accessory for a camera Accessories for use in photographic camera systems provide various data that are inherent to the objective lens being used and are transmitted from the objective lens to the camera body, and the various data are processed and the resultant data are used f... | 02/25/1986 |
| 4558940 | Manual aperture value setting circuit for camera A manual aperture value setting circuit for a camera in which digital values corresponding to the full-aperture value and the minimum aperture value of a lens mounted on a camera are applied from the lens in digital form to a logic circuit which operates ... | 12/17/1985 |
| 4529288 | Camera system with interchangeable objective lens A camera system having an interchangeable objective lens selectively mountable to at least two different types of camera bodies of a, first type and second type, is involved. The camera system has a ROM located in the interchangeable objective lens for st... | 07/16/1985 |
| 4512656 | Camera system Most of the elements constituting this camera system consists of digital circuits, whereby a central processing unit is built in this camera system in such a manner that various kinds of photographic modes are possible without increasing the number of the... | 04/23/1985 |
| 4509846 | Camera system A camera system includes a data source provided in a camera accessory such as an interchangeable lens and a micro-computer in a camera body. A requesting data for requesting particular data related to the lens is sent from the camera body to the lens, whe... | 04/09/1985 |
| 4488800 | Photographing mode display device of a camera Object brightness information is measured and diaphragm aperture value is appex operated using the setting information of mounted lens and the photographing conditions an input to effect ON-OFF control of an automatic-manual change-over means. The change-... | 12/18/1984 |
| 4478500 | Exposure controlling device adapted to cameras using interchangeable lenses An exposure controlling device comprising a means of discriminating to what zone of exposure zones sectioned in advance an exposure value determined by considering the brightness information of an object to be photographed obtained by a TTL light measurem... | 10/23/1984 |
| 4477161 | Compensator system for diaphragm control in a single-lens reflex camera of interchangeable lens type A compensator system for diaphragm control in a single-lens reflex camera of interchangeable type having an exposure control circuit responsive to the position of a lever that is operatively coupled to the diaphragm according to a preset position of a dia... | 10/16/1984 |
| 4429973 | Compensation for diaphragm control for SLR camera In a camera having a displaceable actuator and a diaphragm adjustable between a maximum aperture value and a minimum aperture value responsive to displacement of the actuator, displacement of the actuator is arrested responsive to first, second, and third... | 02/07/1984 |
| 4385819 | Display device in automatic exposure control camera An automatic exposure control camera adjusts automatically the lens aperture in accordance with information on shutter speed determined in accordance with the brightness of an object or shutter speed set in accordance with manual setting from outside and ... | 05/31/1983 |
| 4382667 | Exposure compensation information forming apparatus for a camera The present invention relates to the exposure compensation information forming apparatus for a camera, particularly for forming the aperture and the totally opened aperture value information. Until now in order to compensate the totally opened aperture va... | 05/10/1983 |
| 4360255 | Method and apparatus for transmission of information in a photographic camera A photographic camera has a camera body, an interchangeable lens assembly mounted on the camera body, and an automatic exposure control mechanism located in the camera body. The mechanism responds to a first binary signal representative of a maximum lens ... | 11/23/1982 |
| 4357090 | Exposure control apparatus for camera with interchangeable lens A camera comprising a detecting device capable of mounting an interchangeable lens having a signalling device for transmitting information of the fully open aperture of the lens to the camera and a diaphragm adapted to be controlled from said camera at th... | 11/02/1982 |
| 4329040 | Signal transmitting device of an intermediate lens barrel of a camera In an intermediate lens barrel mountable between an interchangeable lens having on the mount thereof means for generating a minimum F-number signal and a camera having means for detecting the signal on the mount thereof on which the interchangeable lens i... | 05/11/1982 |
| 4329035 | Exposure control system for lens interchangeable cameras In an exposure control system for a camera having an interchangeable objective lens, a diaphragm mechanism defining the diaphragm aperture, a preset means for presetting the f-number of the diaphragm aperture and a shutter mechanism for effecting an expos... | 05/11/1982 |
| 4324467 | Programed exposure control device A programed exposure control device for changeable lens type camera of the type in which the object brightness information is corrected in accordance with other exposure informations including the open F value and the corrected brightness information is r... | 04/13/1982 |
