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US 2003/0222264 A1Published application
Photosensor
AssigneeKabushiki Kaisha Toshiba
InventorsHidetaka Matsuo, Takao Katayama
Life of this patent
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Abstract
A photosensor comprises an emitter that emits light when a forward voltage is applied to a junction between semiconductor regions different in conduction type, wherein the photosensor detects visible light from a current or a voltage from the emitter based on the wavelength of the visible light applied to the emitter.
Claims14
A photosensor comprising:
- an emitter that emits light when a forward voltage is applied to a junction between semiconductor regions different in conduction type,
- wherein the photosensor detects visible light from a current or a voltage from the emitter based on the wavelength of the visible light applied to the emitter.
Dependencies are inferred from the claim text.