Photoelectric-cell meaning

An optoelectronic device that generates an electrical output in response to incident electromagnetic radiation, such as visible light.
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A photodetector that regulates or produces a current or voltage in response to certain types of radiation, esp. visible light: typically incorporated in an electric circuit and used in mechanical devices as to open doors, set off alarms, etc.
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An electronic device having an electrical output that varies in response to the strength of incident electromagnetic radiation, especially visible light. Photoelectric cells make use of the photoelectric effect , in which electrons are displaced by photons in substances such as silicon or selenium to generate a voltage in response to radiation. Photoelectric cells are used to detect light electronically in cameras and night vision apparatus and to generate electrical power in solar cells.
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A transducer that generates an electric current proportional to the light intensity.
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