I always read that human sight ranges from 400 nm - 700 nm, but, IME, that's way off.
For example:
365 nm super high intensity LED looks bright to me. (not sure what the q-factor is though)
808 nm laser is obviously not super bright, but at 200 mW, I can see the dot very clearly.
940 nm high intensity LEDs look dimly lit to me - I can't see light reflecting off of surfaces, but I can see the LEDs themselves in the dark. There is essentially no light coming from those below 820 nm, and very very little below 850 nm. Technically, they should be completely invisible.
Am I a mutant, or is the published range just totally wrong?
For example:
365 nm super high intensity LED looks bright to me. (not sure what the q-factor is though)
808 nm laser is obviously not super bright, but at 200 mW, I can see the dot very clearly.
940 nm high intensity LEDs look dimly lit to me - I can't see light reflecting off of surfaces, but I can see the LEDs themselves in the dark. There is essentially no light coming from those below 820 nm, and very very little below 850 nm. Technically, they should be completely invisible.
Am I a mutant, or is the published range just totally wrong?