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| Number | Title | Issue Date |
| 6946649 | Rotary encoder and position adjuster therefor A rotary encoder has a disc, a pair of photo-interrupters, an adjusting member, and a shifting controller. The disc rotates around a rotating axis and has slits that are formed circumferentially at given intervals. Each of the photo-interrupters has a light-emitting... | 09/20/2005 |
| 6904235 | Quantity-of-light adjusting device A quantity-of-light adjusting device comprises a first quantity-of-light adjusting blade and a second quantity-of-light adjusting blade which move to adjust quantity of light, and a detecting member which detects that the first quality-of-light adjusting blade is at... | 06/07/2005 |
| 6853810 | Quantity-of-light adjusting device A quantity-of-light adjusting device comprises a first quantity-of-light adjusting blade and a second quantity-of-light adjusting blade which move to adjust quantity of light, and a detecting member which detects that the first quantity-of-light adjusting blade is a... | 02/08/2005 |
| 6594449 | Lens barrel drive mechanism A lens barrel drive mechanism includes a system for detecting the number of revolutions of the output shaft of a motor, which is associated with the amount of extension of the lens barrel to which the rotating force of a gear in a gear train is transmitte... | 07/15/2003 |
| 6072958 | Camera having a shutter instrumentation device which detects the travel of the shutter A camera having a shutter instrumentation device for accurately measuring the actual shutter time. The camera includes a shutter which travels in a travel plane to open and close an aperture. A signal projection unit, positioned to one side of the travel ... | 06/06/2000 |
| 5918081 | Camera and film feed apparatus A film feed apparatus detects the feed speed of a film having one perforation formed in a leader, and two perforations respectively formed at positions corresponding to the leading and trailing ends of each photographing frame. The apparatus includes a dr... | 06/29/1999 |
| 5895132 | Exposure precision tester and exposure precision testing method for camera In an exposure precision tester for a camera, including a flexible wiring board where a photometric sensor is implemented is contained in a case. The case has an appearance similar to that of a film cartridge loaded by drop-in operation and is insertable ... | 04/20/1999 |
| 5842057 | Camera with lens barrier apparatus A camera has a lens barrier apparatus in which the lens barrier apparatus is driven by a motor that is also used to drive another mechanical element in the camera. The motor is switched between the lens barrier apparatus and the mechanical element by the ... | 11/24/1998 |
| 5819128 | Film feeding control device A control device for feeding and positioning a film precisely, in a camera, a printing apparatus, etc., includes a photo interrupter with a light emitter, a light detector for detecting a light emitted from the light emitter, and a holding member for keep... | 10/06/1998 |
| 5625850 | Method of controlling film advance When a photographic film cassette is loaded in a camera and a rear lid of the camera is closed, a current adjusting circuit supplies a light emitting element of a photo-sensor with a drive current while stepwise increasing the value of the drive current a... | 04/29/1997 |
| 5473402 | Film processing system A film processing system that removes film strips from their cartridges, splices the strips together for processing and printing, and then separates the strips for return and reattachment to the same cartridge from which they were removed. The empty cartr... | 12/05/1995 |
| 4156564 | Photometric device A filter for compensation of spectral sensitivity is provided in front of a light receiving element through a light shielding tube. A light source emitting such light as having wave length characteristics which fall within a sensitive wave length zone of ... | 05/29/1979 |
| 4146319 | Single lens reflex camera with automatic exposure control circuit A single lens reflex camera with an automatic exposure control circuit includes a photodetector and a light emitting indicator in the viewfinder optical system. The light emitting indicator is energized to emit light with high luminance for a predetermine... | 03/27/1979 |
| 3999195 | Camera adjustable exposure control adapter An adjustable exposure control adapter for cameras is described which includes a light producing source, such as a LED, which is mountable in juxtaposition to a photo cell forming part of the automatic exposure system of the camera. A hand unit, connected... | 12/21/1976 |
