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  • Digital Sensor

Photonics Spectra
Feb 2011
OSRAM Opto Semiconductors GmbHRequest Info
The SFH 7770 digital sensor from Osram Opto Semiconductors combines the functions of a digital ambient light sensor with those of a digital proximity sensor. It determines the ambient brightness, detects the presence of an object nearby, and can tell whether the object is moving closer or farther away. Applications in cell phones and smart phones can be controlled without touching the phone. The applications open automatically, and the brightness and volume are adjusted at precisely the right moment. The digital sensor replaces the usual separate ambient light and proximity sensors and takes up very little space, measuring 2.8 x 2.8 x 0.9 mm. By combining the two functions, it offers added performance. It consumes 350 μA during operation and 5 μA in standby mode.


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ambient light
Light present in the environment around a detecting or interpreting device, especially a machine vision system, and generated from outside sources. Such light must be treated as noise by the vision system.
Denoting the use of binary notation; i.e., the representation of data by bits (1 or 0).
1. A generic term for detector. 2. A complete optical/mechanical/electronic system that contains some form of radiation detector.
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