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Timeline for Why can't I see my laser?

Current License: CC BY-SA 3.0

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Aug 26, 2015 at 21:59 comment added nadjatee1996 Ah, that explains a lot. Last question is it normal for those IR lasers emit a lot of heat?
Aug 26, 2015 at 20:47 comment added Solomon Slow CD-only readers used IR lasers. DVD readers need a shorter wavelength--visible red, I think. BluRay should be self-explanatory.
Aug 26, 2015 at 20:27 comment added Bruce why would you need a rep to comment? If you think you know the answer
Aug 26, 2015 at 19:37 review First posts
Aug 26, 2015 at 20:04
Aug 26, 2015 at 19:34 history answered dfaust CC BY-SA 3.0