I have come across different techniques for diffusing colors. I found Fresnel Lens can be use for diffusing RGB led colors.Is it worth using it or not. I have tested transparent plastic and some lenses but they are not good. Only white paper I found is best.
If it is worth for using (Fresnel Lens)can you guys tell me about supplier for it as well.
Best Answer
More data please.
Power, target, distance, size ... application ?
Fresnel lenses have the advantage of beam shaping with relatively minor optical losses - about 10% typically. The same applies to TIR lenses and reflectors - both of which MAY do what you want. White paper achieves its superior result with a very high optical loss. This may be unimportant or crucial depending on application.