Lee Buckingham wrote:
I think the iphone 5 can see in ultraviolet.
There's some indication that humans might be able to as well if our lenses didn't filter it out. I saw a story a while ago about someone who had the lens and cornea of one eye replaced by a prosthesis. He claimed to be able to see the light from ultraviolet lamps as a deep purple glow. However, it's probably more a matter of the blue receptors having some sensitivity in that region rather than a separate set of receptors. Although you never know -- after all, we've recently discovered another kind or two of taste buds that nobody knew we had... -- Greg