S
swapna
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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
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