Light sensing circuit and system

The utility model provides a light sensing circuit and system, which comprises an ambient light sensing unit, a colored light sensing unit and an output unit, and is characterized in that the colored light sensing unit is electrically connected with the ambient light sensing unit and the output unit...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN CHEN'EN, LYU XUANYI, LIU BAICUN, LIN LINGQI, ZHOU ZIJIE, ZHOU KAIRU, CHENG KWONG TING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COLORIMETRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
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Beschreibung
Zusammenfassung:	The utility model provides a light sensing circuit and system, which comprises an ambient light sensing unit, a colored light sensing unit and an output unit, and is characterized in that the colored light sensing unit is electrically connected with the ambient light sensing unit and the output unit; wherein the ambient light sensing unit senses first colored light in ambient white light to generate a colored light compensation signal, the colored light sensing unit receives the colored light compensation signal and generates a sensing signal according to sensed second colored light, and the output unit receives the sensing signal and generates an output signal; therefore, the light sensing circuit does not need to be additionally provided with a compensation circuit, so that the influence of the unstable light current proportion on the light sensing circuit is reduced, the ambient light resistance of the light sensing circuit is improved, and normal sensing can still be ensured under the irradiation of ambie