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photodetectors and photoresistor
On 2008-10-12 02:56:49 -0400, swapna said:
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. 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.co...hotoresistor.h tml And this cross post from (where else) Google Groups is relevant how? -- Michael |
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