Krutz
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- Nov 21, 2007
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..and, about your lens:
hope this helps! they have many different diameters, like dozens! have a look if yours is among them!
manuel
i looked around a good while to find AR-coated glass.
i tested several "uv blocking cameralenses", they all reflect much worse than my glasses, for example. and get really expensive too. no way to tell how well they are AR-coated before holding them in your hands, the ads are close to lieing..
however:
there are extremely well coated "lenses" for flashlights, called "UCL" for "ultra clear lens". many different sizes, all round of course, several strengths as well:
UCL® Lens
i got one around 50mm, a bit less than 2mm strength i think. it was easy to cut with a common glasscutter. both sides are AR-coated, and wow, what a coating! much better than my (too expensive) ar-coating on my glasses, you barely see the reflection on a lightbulb! its like you hold something in your hand, you feel it, but cant see it! its pretty impressive!
the coating is pretty tough too, gently rubbing it to clean is no problem.
holding it into a laserbeam, i cant surely measure any difference in power at all.
a 100mw green laser has so little reflection that you dont see a second dot at all.
well, i guess i already convinced you a page ago, for less than 10$ a piece.. but damn, this stuff amazes me!
manuel
hope this helps! they have many different diameters, like dozens! have a look if yours is among them!
manuel