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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
6583558 Electron tube Jun. 24, 2003
6580027 Solar cells using fullerenes Jun. 17, 2003
6580547 Photonic crystal formed by laser machining and having holes with sub-wavelength pitch Jun. 17, 2003
6576888 Light receiving module includes a signal processing semiconductor element Jun. 10, 2003
6576940 Semiconductor device having a solid state image sensing device and manufacturing method thereof Jun. 10, 2003
6573488 Semiconductor position sensitive detector Jun. 3, 2003
6563103 Image sensor and method of operating an image sensor May. 13, 2003
6552320 Image sensor structure Apr. 22, 2003
6552325 Photo diode array Apr. 22, 2003
6548802 Optical receiver zero calibration system and method Apr. 15, 2003
6545258 Photo-sensor cross-section for increased quantum efficiency Apr. 8, 2003
6541749 Photodetector pixel cell Apr. 1, 2003
6541752 Monolithic circuit of active quenching and active reset for avalanche photodiodes Apr. 1, 2003
6541753 Semiconductor energy detector having reinforcement Apr. 1, 2003
6541754 Method and apparatus for measuring photoelectric conversion characteristics of photoelectric conversion device Apr. 1, 2003
6541755 Near field optical probe and manufacturing method thereof Apr. 1, 2003
6534757 Image sensor noise reduction Mar. 18, 2003
6534759 Vertical photodetector with improved photocarrier separation and low capacitance Mar. 18, 2003
6527460 Light emitter control system Mar. 4, 2003
6528778 Optical sensor and optical unit Mar. 4, 2003
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

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