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_GD5_ t1_j7glkeu wrote on February 6, 2023 at 5:32 PM

Reply to comment by zerpa in Why are green and red laser pointers so cheap and available, but yellow ones not so much? by SurprisedPotato

Lasers are not great light sources for displays. You have to do something to get rid of the coherence, otherwise you get a lot of speckles that either distract you or make you sick.