Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

808nm appears red to me like 650nm, why?

Sigurthr

Well-known member
Joined
Dec 11, 2011
Messages
4,382
Likes
302
Points
83
Pretty interesting, what's the number close to the 425? 400, perhaps?


A few months ago after hearing my ex-boss tell me he had cataract surgery I took a 365nm flashlight to work and tested him. He claimed to see a very strong lilac light with the eye that had the surgery, while the other eye could only see the usual "visible leak" from those flashlights. I believe he was telling the truth, he tried first with prescription glasses on and couldn't see the UV. When he removed the glasses he seemed genuinely startled to see the light.
I tried to get him to describe the color but he's not good at that :(
Yeah that's 400 I think. Cool, so he's at least partially pseudophakic.
 





Top