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Class Information
Number: 250/214.1
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Special photocell
Description: Subject matter in which the photocell has characteristics which are sufficiently unique to be stated in the claims.










Patents under this class:
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Patent Number Title Of Patent Date Issued
6528779 Optoelectronic module Mar. 4, 2003
6529281 Position sensitive detectors and distance measuring apparatus using them Mar. 4, 2003
6525867 Fast response micro-modulator arrays Feb. 25, 2003
6521883 Photovoltaic device Feb. 18, 2003
6522471 System of beam narrowing for resolution enhancement and method therefor Feb. 18, 2003
6518557 Two-dimensional image detector, active-matrix substrate, and display device Feb. 11, 2003
6515273 System for indicating the expiration of the useful operating life of a pulse oximetry sensor Feb. 4, 2003
6512221 Image sensor chip with an integrated operational amplifier and its application in a CIS module Jan. 28, 2003
6509560 Chip size image sensor in wirebond package with step-up ring for electrical contact Jan. 21, 2003
6509574 Optocouplers having integrated organic light-emitting diodes Jan. 21, 2003
6504139 Substrate for photoelectric conversion device, method of manufacturing the same, and photoelectric conversion device using the same Jan. 7, 2003
6501065 Image sensor using a thin film photodiode above active CMOS circuitry Dec. 31, 2002
6498336 Integrated light sensors with back reflectors for increased quantum efficiency Dec. 24, 2002
6498337 High-speed photodetector Dec. 24, 2002
6495814 Photo sensor with signal processing circuit Dec. 17, 2002
6495817 Radiation detecting apparatus having an electrodeless region Dec. 17, 2002
6489607 Optical detector Dec. 3, 2002
6483094 Solid state optical shutter Nov. 19, 2002
6483098 Side-illuminated type semiconductor photodetector device and method of manufacturing the same Nov. 19, 2002
6483099 Organic diodes with switchable photosensitivity Nov. 19, 2002
6483100 Photonic device Nov. 19, 2002
6476371 Solid state imaging device and driving method thereof Nov. 5, 2002
6476374 Room temperature, low-light-level visible imager Nov. 5, 2002
6476376 Two dimensional object position sensor Nov. 5, 2002
6476867 Photoelectric conversion apparatus, driving method and x-ray image pickup apparatus using the same Nov. 5, 2002
6469291 Moisture detecting system using semiconductor light sensor with integral charge collection Oct. 22, 2002
6469292 Photodetector and method of driving the same Oct. 22, 2002
6465768 MOS structure with improved substrate-triggered effect for on-chip ESD protection Oct. 15, 2002
6465774 Method and system for versatile optical sensor package Oct. 15, 2002
6462326 Circuit for deriving the position of a fast pulsing laser on a silicon position sensing detector Oct. 8, 2002
6462328 Photo-detection sensor and method of manufacturing the same Oct. 8, 2002
6459077 Bucket brigade TDI photodiode sensor Oct. 1, 2002
6455831 CMOS foveal image sensor chip Sep. 24, 2002
6455836 Metallic optical barrier for photo-detector array is also interconnecting electrode Sep. 24, 2002
6452152 Sense amplifier having a precision analog reference level for use with image sensors Sep. 17, 2002
6452163 Armored detector having explosion proof enclosure Sep. 17, 2002
6448545 Precision endoscopic imaging system Sep. 10, 2002
6441358 Method and system for information transfer and replication between spatially distinct points via engineered quantum states Aug. 27, 2002
6437309 Photoelectric transducer Aug. 20, 2002
6437311 Photodetector and device employing the photodetector for converting an optical signal into an electrical signal Aug. 20, 2002
6429417 Highly transmissive sensor for detecting the position of an optical signal Aug. 6, 2002
6420692 Zig-zag-patterned position sensor system Jul. 16, 2002
6414299 Method of mounting optical sensor package Jul. 2, 2002
6414300 Circuit with a sensor and non-volatile memory having a ferroelectric dielectric capacitor Jul. 2, 2002
6410905 CCD with enhanced output dynamic range Jun. 25, 2002
6403944 System for measuring a biological parameter by means of photoacoustic interaction Jun. 11, 2002
6399934 Optical coupling to gated photocathodes Jun. 4, 2002
6396043 Thin image sensor package fabrication method May. 28, 2002
6396046 Imager with reduced FET photoresponse and high integrity contact via May. 28, 2002
6388240 Shielded optical probe and method having a longevity indication May. 14, 2002

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