Electronic switch comprising a photosensitive semiconductor
AssigneeCooper Industries, Inc.
InventorPeter A. Howson
Life of this patent
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Abstract
An electronic switch comprises a photosensitive semiconductor (1,11,12) and a light source (14,24) which, when actuated, illuminates the semiconductor and causes the latter to become conductive, the photosensitive semiconductor being a sintered mixture comprising, by weight, 58-72% of cadmium, 14.8-21% of selenium, 7-15% of tellurium, 7-12% of sulphur, 0.1-1% of chlorine, and 0.005-0.1% of copper.
Claims12
An electronic switch comprising a photosensitive semiconductor layer and a light source switch, when actuated, illuminates the photosensitive semiconductor layer and causes said photosensitive semiconductor layer to become conductive through a photoconductive effect in which the photosensitive semiconductor layer is sintered mixture comprising, by weight, 58 to 72% of cadmium, 4.8 to 21% of selenium, 7 to 15% of tellurium, 7 to 12% of sulphur, 0.1 to 1% of chlorine, and 0.005 to 0.1% of copper.
Dependencies are inferred from the claim text.