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

photodetectors and photoresistor
 

On 10/12/2008 8:46 AM Michael spake thus:???? 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.com/2008/10/photodetector-photoresistor.h?? tml?? ?? And this cross post from (where else) Google Groups is relevant how?????No crosspost seen here (r.p.darkroom); perhaps you meant to say ??"multiple post"? Not particularly useful (and apparently self-promoting) ??in any case.??????-- ?? Washing one's hands of the conflict between the powerful and the??powerless means to side
with the powerful, not to be neutral.????- Paulo Freire??

photodetectors and photoresistor
 

Michael wrote:

And this cross post from (where else) Google Groups is relevant how?

Just set your filters to delete google groups. Unfortunately it does get
rid of a few useful posters but much of the rubbish goes.

Pete

--
http://www.petezilla.co.uk

photodetectors and photoresistor
 

"Peter Chant" wrote in
message ...
Michael wrote:

And this cross post from (where else) Google Groups is
relevant how?

Just set your filters to delete google groups.
Unfortunately it does get
rid of a few useful posters but much of the rubbish goes.

Pete

--
http://www.petezilla.co.uk

Google does seem to respond to abuse complaints but
all of the recent spam posted to the rec.photo groups has
come from them. Anyone can get a Google account, post a
bunch of spam and disappear. Probably we shold be going
after the websites they use for selling junk.


--
--
Richard Knoppow
Los Angeles, CA, USA