Ambient Light Sensors
- Created: Wednesday, 15 June 2011
Everlight Electronics (Taipei, Tawiwan) introduces an Ambient Light Sensor (ALS) product family that meets the requirements for power management solutions for the display backlighting of mobile appliances such as mobile phones, notebooks, and PDAs. The ALS combine a photodiode and a current amplifier IC in one package.
This cost-effective solution saves power for backlighting displays in mobile appliances by adjusting the backlight brightness depending on the ambient light. To ensure accurate measurement, the spectral response of the ambient light sensor corresponds to that of the human eye.
The Everlight ALS are current output types which offer a high output linearity across a wide illumination range and a low sensitivity variation across various light sources. The ALS can be operated within a supply voltage range from 1.8V to 5.5V and in a temperature range from -40°C up to 85°C. The Everlight Ambient Light Sensor family is RoHS-compliant, Pb-free, and halogen-free.
Everlight Ambient Light Sensors can also be used in computing and consumer devices, automatic residential and commercial management like in- and outdoor light control, automatic contrast enhancement for electronic signboards, ambient light monitoring devices for daylight and artificial light, street light, and CCD/CCTV.