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Browse by Category: Main > Electrical & Energy
Class Information
Number: 250/214P
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Photographic control
Description:










Patents under this class:
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Patent Number Title Of Patent Date Issued
8610046 Image readout circuit with capacitor that is shared between sample and hold and buffer Dec. 17, 2013
8610044 Method for producing a linear image sensor having multiple outputs Dec. 17, 2013
8519318 Solid-state image sensing device and control method of the same Aug. 27, 2013
8362532 Small pixel for CMOS image sensors with vertically integrated set and reset diodes Jan. 29, 2013
6710321 Display image quality measuring system Mar. 23, 2004
6642503 Time domain sensing technique and system architecture for image sensor Nov. 4, 2003
6567160 Light measuring apparatus and light measuring method May. 20, 2003
6529281 Position sensitive detectors and distance measuring apparatus using them Mar. 4, 2003
6414295 Image-sensing device and signal processing method in an image-sensing device Jul. 2, 2002
6180936 Photoreceptor arrangement for receiving light beams having coupling elements Jan. 30, 2001
6058270 Photometric device and camera having the photometric device May. 2, 2000
6029014 Light measuring apparatus and camera using the light measuring apparatus Feb. 22, 2000
5969338 Light-received position detecting circuit and distance detecting apparatus using the same Oct. 19, 1999
5838425 Exposure control for the photographic recording of a microscope image Nov. 17, 1998
5777728 Light meter Jul. 7, 1998
5705807 Photo detecting apparatus for detecting reflected light from an object and excluding an external light componet from the reflected light Jan. 6, 1998
5705808 Flash tube devices with a controllable electrical energy Jan. 6, 1998
5665960 Photoelectric converter device and method of manufacturing the same Sep. 9, 1997
5631458 Range finder May. 20, 1997
5581078 Ballistic optical camera trigger Dec. 3, 1996
5548398 Illuminant discriminator providing detection of high efficiency illumination Aug. 20, 1996
5541401 Arrangement for image generation and/or reading having pixel matrices of differing densities Jul. 30, 1996
5394063 Video light apparatus Feb. 28, 1995
5347563 Method for determining the function representing the effect of non-reciprocity of a radiographic film Sep. 13, 1994
5276320 Photometering device Jan. 4, 1994
5225884 Excimer laser pulse analyzer and method Jul. 6, 1993
5192968 Photometer Mar. 9, 1993
5184172 Method of and apparatus for automatically controlling exposure Feb. 2, 1993
4980545 Photometric circuit Dec. 25, 1990
4929824 light metering device with detector matrix and mean value detection May. 29, 1990
4849781 Range detector Jul. 18, 1989
4808811 Light integrating circuit for use in a light measuring device which is accurate for both low and high light values Feb. 28, 1989
4774401 Light measuring device variably controlled according to focus mode selection Sep. 27, 1988
4704024 Photometric circuit for camera Nov. 3, 1987
4701048 Input circuit for distance measuring apparatus Oct. 20, 1987
4699504 Control system for microimage recorders Oct. 13, 1987
4681441 Light measuring device Jul. 21, 1987
RE32437 Light measuring device for flash photography Jun. 9, 1987
4657378 Color printing control system and method Apr. 14, 1987
4639134 Process and circuit arrangement for amplifying an input current Jan. 27, 1987
4610537 Photographic image information detecting device Sep. 9, 1986
4566115 X-Ray diagnostic system for radiographs Jan. 21, 1986
4561753 Selective photoresponsive sensing circuit Dec. 31, 1985
4556789 Measuring circuit for photo-receiving intensity of photosensor Dec. 3, 1985
4498753 Photometric apparatus for cameras Feb. 12, 1985
4492858 Photometric circuit having a plurality of photoelectric transducer elements capable of being selectively enabled for photometry Jan. 8, 1985
4479708 Temperature compensation system of light measuring circuit Oct. 30, 1984
4476383 Photometering device for obtaining exposure information Oct. 9, 1984
4473744 Photometric apparatus for camera Sep. 25, 1984
4473288 Photographic device with screen for controlling gradation of photographed image Sep. 25, 1984

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