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Search: Posts Made By: 911slf
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17th Sep 2016, 17:53
Replies: 889
Views: 434,964
Posted By 911slf

Severe damage to kids mucking about described...

Severe damage to kids mucking about described here: Is Your Laser Pointer Dangerous Enough to Cause Eye Injury? - American Academy of Ophthalmology...
13th Jan 2012, 08:38
Replies: 889
Views: 434,964
Posted By 911slf

Optical Density at different wavelengths

Optical Density 5 would reduce light by factor of 100,000 at the wavelengths for which it operated. For example if it applied at all visible/IR/UV wavelengths you could stare at the sun through a...
Replies: 889
Views: 434,964
Posted By 911slf

licence lasers

Perhaps it is desirable that anyone wanting a laser above 1 milliwatt - the usual limit in lecture theatres, should need a licence to buy one. Not by any means a complete answer but would help.
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