Oleg Goldshmidt wrote:
I'm not sure as for the "why", but I have personal experience as to the fact that laser light is, in fact, danagrous.There is nothing special about laser light, except coherence which should not matter.
I accidentally flashed into someone's eye a tiny laser pointer (it is run by two digital watch batteries, not even aaa) THOUGH A PIECE OF WHITE PAPER, that supposedly reflects most of the light (that's why it happened, because I thought I was flashing the paper, and it shone through). That created dark spots in her vision that took two days to go away (thankfully, without permenant damage).
I know that when a laser is marked as "eye safe", it simply means that standard reflex will shut your eye before permenant damage is done, not that it won't hurt your eye.
I'm not sure why lasers are more dangarous. Maybe because the light is coherent, and all the energy is concentrated in one wavelength. I will tell you that after that incident I dumped the laser pointer and I don't want to hear from it again.
No, I don't think that it is wise to risk your eyes over a CD-R laser.
Shachar
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