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Ambient Light Sensors This document is divided into two sections. The first introduces the fundamentals relating to sensing ambient light and the performance characteristics of Vishay’s portfolio. The second provides numerous examples of ambient light sensor application schematics. Fundamentals Ambient light sensors are used to detect light or brightness similar to the human eye. They are used in applications where settings need to be adjusted to ambient light conditions with a response similar to the human eye. Ambient light sensors are most commonly found in industrial lighting, consumer electronics and automotive applications.
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