- Jul 16, 2013
Has to be a bad camera like a phone camera. Certain cameras don't see ir
I am color blind, and I can see the 808nm off of a pump diode for a 5mW ebay green as long as I am blocking the green with my glasses and I am not outside. Just letting you know.Are there actually people who can't see 808nm? If so, can you tell me anything about them? Color blind? Elderly? Just regular people?
The reason I'm asking is that for the last 4 or 5 months I've been collecting research papers on human ability to see near-infrared, near-uv, x-rays, gamma rays, particle radiation (beta, mesons, cosmic) and anything else that can elicit a visual response (a blow to the head, direct video feed to the brain).
There is a huge variation in human ability to see ultraviolet, strongly correlated to age and total lifetime exposure to uv. For example, most people under 30 can see uv down to 310nm (with some visual acuity) but people older than 50 usually can't.
I've never heard of any such individual variation in the near-ir, especially at such a low wavelength. If you have more info, I would like to know more.
Now what would be interesting is a list of wavelengths you can't get by binning diodes and <1000USD DPSS lasers.This list is futile. Diodes could be binned to all sorts of different wavelengths. I've had a 650nm diode at 667nm, I've had a 405nm at 417nm and I've had a 520nm at 511nm. They are all over the map and I think you're wasting your time trying to list them all.