Ambient Light Sensor
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Description
Ambient light sensors have to detect the brightness of the ambient like the human eye.
The human eye is sensitive in a range from xlux up to 10,000 lux for wavelengths from 500nm to 600nm.
The spectrum of silicon covers the sensitivity of the human eye. But silicon has a much higher sensitivity for infrared wavelengths.
To create an ambient light sensor in silicon the infrared
part has to be suppressed by filtering or calculation.
The human eye is sensitive in a range from xlux up to 10,000 lux for wavelengths from 500nm to 600nm.
The spectrum of silicon covers the sensitivity of the human eye. But silicon has a much higher sensitivity for infrared wavelengths.
To create an ambient light sensor in silicon the infrared
part has to be suppressed by filtering or calculation.
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Ambient Light Sensor
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