4 ms·
The limit for visible light is as high as it is because of the blink reflex. An IR laser, having a beam you don't perceive as being bright, won't make you blink
by tsukikage 9y ago
The limit for visible light is as high as it is because of the blink reflex. An IR laser, having a beam you don't perceive as being bright, won't make you blink.