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Light sensors improve mobile device functionality

Posted: 16 Jun 2007     Print Version  Bookmark and Share

Keywords:ambient light sensor  dynamic range  photo-resistor  photodiode  phototransistor 

This article looks at the different available light sensors, and covers trade-offs in resolution, dynamic range and cost. Using integrated circuitry with light sensors enables on-chip calibration, filtering and increased resolution. These advances are discussed with respect to two applications: an ambient-light sensor for a laptop and another for a cell phone display.

View the PDF document for more information.





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