Man builds impressively dangerous laser shotgun

A 1-watt laser is quite a high power for a laser lighter. Even then, with beam divergence of 35 degrees (600 mrad), it has a NOHD (nominal ocular hazard distance) of some 6.5 cm. Calculator is here:

With such high beam divergence it would not have long distance between the object to light up and the lighter (less than 1 inch is practical), but it’d be very wind-resistant.

I am getting more and more tempted…

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