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photodetectors and photoresistor

 
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swapna

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Since: Oct 12, 2008
Posts: 1



(Msg. 1) Posted: Sun Oct 12, 2008 12:02 am
Post subject: photodetectors and photoresistor
Archived from groups: comp>sys>palmtops>pilot (more info?)

Photosensors or photodetectors are sensors of light or other
electromagnetic energy. There are several varieties:
• Optical detectors, which are mostly quantum devices in which an
individual photon produces a discrete effect.

photoresistor


A photoresistor or Light Dependent Resistor or CdS Cell is a resistor
whose resistance decreases with increasing incident light intensity.
It can also be referred to as a photoconductor.




http://electronicstopics.blogspot.com/2008/10/photodetector-photoresistor.html
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