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Surface – Mount
Ambient Light Sensor


The ALS-PT19-315C/L177/TR8 is an ambient light sensor, consisting of phototransistor in
miniature SMD. EVERLIGHT ALS series product are a good effective solution to the power
saving of display backlighting of mobile appliances, such as the mobile phones, NB and PDAs.
Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light
sensor is close to that of human eyes.


‧Detection of ambient light to control display backlighting
Mobile devices – mobile phones, PDAs
Computing device – TFT LCD monitor for Notebook computer
Consumer device – TFT LCD TV, plasma TV, video camera, digital camera, toys
‧Automatic residential and commercial management
‧Automatic contrast enhancement for electronic signboard
‧Ambient light monitoring device for daylight and artificial light
– Street light, CCD/CCTV


Farees Ahmed

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