Links

[BLUE_CHIP]

It would be really helpfull if you could give me a few links on LDRs

Preferably cadmium sulphide LDRs.

I'm looking for the internal structure, chemical properties of cdS, and relationships between light intensity and resistance and if possible, light wavelength and resistance.

I've been looking for a while but cant find anything.

thank you [:D]

[Integral]

Whats an LDR?

[BLUE_CHIP]

Sorry, I didn't clarify.

A Cadmium Sulphide Light Dependant Resistor (LDR)

I thought that it was an accepted abbreviation.

[Integral]

I have never heard or seen that acronym, are these photo diodes? Perhaps your difficulty in finding information is because LDR in not a common term. (Just guessing) [;)]

[BLUE_CHIP]

An "LDR" is a photoconductive cell for which the equation:

lnR=(ln[lux])^{-1}

applies, where R = Resistance of cell
lux = intensity of light falling on cell

[Integral]

Try including photo diode in your search string instead of LDR. I had some interesting hits with that.

[pallidin]

Here's one link I found: www.electrovalue.co.uk/pdf/o-p.pdf

THere are others. I used these search words in Google: Cadmium Sulphide Light Dependant Resistor