Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7224395 | Camera having a shutter to cut reverse-incident light from the eyepiece lens A camera comprises a beam splitter configured to divide an incident light from a subject through a photographing lens, an eyepiece lens configured to observe the incident light divided by the beam splitter with a viewfinder, a relay lens provided between the beam sp... | 05/29/2007 |
| 7178998 | Focal plane shutter for digital still cameras A drive member attached to the output shaft of a DC motor placed on a shutter base board includes a drive pin connected to the arm of a shutter blade within a blade chamber for driving the shutter blade to open and close an exposure opening with the reciprocal rotat... | 02/20/2007 |
| 6389234 | Camera incorporating a focal-plane shutter There is described a camera incorporating a focal-plane shutter. The camera includes a lens, an image window having an aperture to bound a light coming through the lens in a plain perpendicular to an optical axis of the lens, a focal-plane shutter and a p... | 05/14/2002 |
| 6249650 | Single-lens reflex camera A single-lens reflex camera comprises a quick return mirror which can be positioned at an object observing position (or an inclined position) and a photographing position (or a horizontal position). A photoreceptor element is disposed in such a manner tha... | 06/19/2001 |
| 5978610 | Exposure control apparatus for electronic development type camera An exposure control apparatus for an electronic development type camera having a photographic optical system. The camera uses a recording medium in which subject images formed through the photographic optical system are electrically developed. The exposur... | 11/02/1999 |
| 5905920 | Camera with monitoring and testing of camera shutter operations A camera which prevents accidents which could lead to damage to the shutter when performing shutter time tests in the opened state of the back cover of a camera. The camera has a shutter to limit the exposure time of the recording medium which has been lo... | 05/18/1999 |
| 5761552 | Camera having shutter instrumentation device for measuring shutter speed A camera which can detect the actual opening/closing state of the camera shutter based on a signal reflected towards the shutter by a signal projection unit and received by a signal receiving unit. The signal received by the signal receiving unit is based... | 06/02/1998 |
| 5737648 | Photometric device for a camera A photometric device, to measure light incident from a photographic lens of a camera, which can perform accurate photometry, independently of the direction of polarization of the incident light. The photometric device is provided with a first semi-transpa... | 04/07/1998 |
| 5614978 | Camera shutter control device and method A camera shutter control device includes a controller for controlling the camera, a shutter device having front and rear curtains, and shutter drives for driving the curtains. A computation device determines the shutter time and a correction device correc... | 03/25/1997 |
| 5557366 | Strobe control device for camera A strobe control device for a camera has a light receiving element for receiving and integrating light reflected from a film surface of a film used in the camera. The strobe control device further includes a controller which controls a strobe to emit ligh... | 09/17/1996 |
| 5473405 | Shielding blades for TTL multi-pattern light adjustment preventing light leakage between curtains According to one aspect of the present invention, a focal plane shutter of a camera for conducting TTL multi-pattern light adjustment is provided that comprises a plurality of shielding blades for covering an aperture in a developed position. Each of the ... | 12/05/1995 |
| 5457514 | Shutter instrumentation device for detecting the opening and the closing of a camera shutter A camera having a mechanism to determine the precise times at which a shutter or shutter blinds open or close an aperture. The camera measures the actual time in which shutter blinds pass over the aperture by utilizing a projection unit, positioned on one... | 10/10/1995 |
| 5402201 | Automatic flash control device of camera An automatic flash control device of a camera includes a flashing source for performing preliminary flashing and main flashing, a first photodetector for measuring a light beam reflected by an object field and reflected by a shutter curtain via a taking l... | 03/28/1995 |
| 5400112 | Photometric apparatus for a camera A photometric apparatus of a camera for carrying out a multi-segmented photometry by receiving object light reflected at a film or the shutter, include a plurality of photometric elements which are disposed at positions to respectively receive reflected l... | 03/21/1995 |
| 5260737 | Flash photographing system A camera system consisting of a flash device and a camera of the kind performing the so-called TTL flash control action is arranged to permit manual setting of a correction degree for the TTL flash control; to adjust the degree of light quantity control a... | 11/09/1993 |
| 5245176 | Method for scanning photodiodes utilizing a shutter mechanism having opening and closing transition times A method for electronically scanning a photodiode array that is sequentially illuminated by individual light beams by way of a shutter mechanism that has opening and closing transition times during which each light beam is only partially projected onto th... | 09/14/1993 |
| 5231448 | Photometric apparatus for a camera A photometric apparatus of a camera for carrying out a multi-segmented photometry by receiving object light reflected at a film or the shutter, includes a plurality of photometric elements which are disposed at positions to respectively receive reflected ... | 07/27/1993 |
| 5218397 | Automatic exposure control apparatus for a camera An automatic exposure control apparatus for a camera for metering a reflected light from a film surface in a flash photographing mode and stopping a light emission in accordance with the comparison comprises a flashing device for providing a preliminary l... | 06/08/1993 |
| 5184174 | Photographic system with off-the-film exposure metering Off-the-film metering in a photographic film camera is improved by measuring actual film reflectivity at the time of film manufacture and recording a film adjusted exposure constant on a magnetic recording layer on the film. Camera apparatus is provided t... | 02/02/1993 |
| 5006879 | Electronic flash lighting device for camera An electronic flash lighting device for a camera comprises a first light measuring device for measuring the brightness of a field to be photographed, prior to flash emission, and a second light measuring device for measuring the brightness of a plurality ... | 04/09/1991 |
| 4905035 | Camera A camera includes producing means for detecting the state of the luminance of the object field and producing a luminance information signal conforming to the detected state of the luminance of the object field, control means for calculating the exposure v... | 02/27/1990 |
| 4769666 | Apparatus for determining amount of flash An apparatus for determining the amount of flash having a first light receiving element for measuring light with respect to a first region (central region) of the frame, a second light receiving element for measuring light with respect to a second region ... | 09/06/1988 |
| 4685786 | Exposure control device for camera An exposure control device for a camera is so structured that the film information recorded on the film or the cartridge is read, the reflection coefficient of the loaded film is determined based on the read film information and the termination of light e... | 08/11/1987 |
| 4623246 | Photographic printing apparatus A photographic printing apparatus for printing an image formed on a negative film on photographic paper includes a shutter disposed between the photographic paper and an enlarging lens. A reflective surface is provided on the surface of the shutter on the... | 11/18/1986 |
| 4514073 | Automatic exposure control camera An automatic exposure control camera is of a type capable of controlling both the camera exposure and the flash light amount to be emitted by an electronic flash device. The automatic exposure control camera includes an average light measuring device for ... | 04/30/1985 |
| 4509849 | Light measurement device for single lens reflex camera In the disclosed apparatus, a photographic optical system passes light to an image plane on which a film or other sensor is to be arranged, and an optical member between the optical system and the image plane allows light from the optical system to pass w... | 04/09/1985 |
| 4509845 | Apparatus for controlling the emission of an electronic flash An apparatus for controlling the emission of an electronic flash is provided, which is used with a photographic camera of the type in which the photometry of reflection from a film surface is effected. The apparatus calculates an exposure period on the ba... | 04/09/1985 |
| 4496230 | Exposure control device for cameras A flash photography system for a camera which is adapted to be used with an electronic flash device which supplies a control signal when the device is a ready condition. The camera includes a diaphragm control circuit which automatically control the diaph... | 01/29/1985 |
| 4478503 | Weighted metering device in camera In the disclosed light metering device, a scanning reflecting mirror directs a portion of light that has passed through an objective lens to a light-sensitive element and a driving device changes the positional relationship of the light-sensitive element ... | 10/23/1984 |
| 4477171 | Electronic flash system There is disclosed an electronic flash system having a diaphragm which is operated on the basis of an aperture control signal from an electronic flash device. A light sensitive element position in the camera system produces an electrical signal representi... | 10/16/1984 |
| 4477172 | Light measuring device for camera A light measuring device for cameras with a photosensitive element positioned to receive light reflected from a film surface or shutter surface. A collection lens and a diffusion plate having a plurality of stages of different diffusing characteristics ar... | 10/16/1984 |
| 4460262 | Automatic exposure control circuit for TTL automatic electronic flash An automatic exposure control circuit for a TTL automatic electronic flash for use with a camera having an electronic flash controlling capability and capable of photometry of reflection from a film surface performs photometry of stationary light until a ... | 07/17/1984 |
| 4459007 | Apparatus for reflection photometry of a single lens reflex camera An apparatus for reflection photometry of a single lens reflex camera includes a first shutter blind, the surface of which exhibits a reflectivity which is nearly one-half the reflectivity of a film surface. During the time a photoelectric transducer elem... | 07/10/1984 |
| 4456353 | Photometry controller for camera having an electronic flash controlling capability and capable of photometry of reflection from film surface A photometry controller is provided for a camera having an electronic flash controlling capability and capable of photometry of reflection from film surface. The controller is operative, whenever the difference in the brightness between a main subject and... | 06/26/1984 |
| 4453813 | Photometric device for single-lens reflex camera The disclosed photometric device measures light from an image formed on a focal plane and permits alterations in the portion of light distribution measured. The device has a hood at least partially disposed before a light receiving element which receives ... | 06/12/1984 |
| 4448506 | Exposure control device of a camera An exposure control device of a camera comprises first metering means for effecting metering while dividing an object into a plurality of metering areas and for generating a first metering output determining the exposure of the entire object on the basis ... | 05/15/1984 |
| 4445764 | Light measuring device for a single lens reflex camera A light measuring device for measuring the light in the field by means of a light sensing means sensing the light reflected of the shutter plane provided in the neighborhood of the image forming plane of the photographing lens or the film plane or both of... | 05/01/1984 |
| 4440479 | Reflex photometric assembly for camera A reflex photometric assembly for a camera is integrally formed of a reflecting member for directing light reflected by a shutter blind and a film surface to a photoelectric transducer element for photometry and a shield member for preventing the light re... | 04/03/1984 |
| 4431284 | Light measuring device for camera A light measuring device for camera so designed that by placing a plate whose reflection factor is different from that of the shutter curtain in front of the shutter curtain the distribution of the reflection factor of the shutter curtain is varied so as ... | 02/14/1984 |
| 4407574 | Camera with focal plane shutter In a camera of the type which is provided with a focal plane shutter having a group of opening blades and a group of closing blades and a light receiving element for metering the light transmitted through a photographing lens, the improvement comprises an... | 10/04/1983 |
