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Class Information
Number: 257/E31.106
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductor devices responsive or sensitive to electromagnetic radiation (e.g., infrared radiation, adapted for conversion of radiation into electrical energy or for control of electrical energy by such radiation processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof) (epo) > Structurally associated with electric light source (e.g., electroluminescent light source) (epo) > Radiation-sensitive semiconductor device controlled by light source (epo) > Radiation-sensitive semiconductor device without potential or surface barrier (e.g., photoresistor) (epo) > Optical potentiometer (epo)
Description: This subclass is indented under subclass E31.104. This subclass is substantially the same in scope as ECLA classification H01L31/16B4.

Patents under this class:

Patent Number Title Of Patent Date Issued
8071990 Optoelectronic component that emits electromagnetic radiation and illumination module Dec. 6, 2011
7884437 Semiconductor device and electronic apparatus using the same Feb. 8, 2011
6025588 Optical analog potentiometer Feb. 15, 2000
5343186 Variable resistor having the capacity to produce a fader start signal output Aug. 30, 1994
4796000 Optical potentiometer Jan. 3, 1989
4284885 Optical potentiometer Aug. 18, 1981
4283702 Contactless conductance potentiometer Aug. 11, 1981
4276534 A contactless resistance potentiometer Jun. 30, 1981

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