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what is the range of vision without the lens? Is it expanded just on the blue side or do we also start seeing infrared?
by adtac 8y ago
what is the range of vision without the lens? Is it expanded just on the blue side or do we also start seeing infrared?
- simcop2387 8y agoIt'll probably only expand to the UV side of things, the lens doesn't really filter out IR at all and you can see some of it already without any changes to your eyes. But your eye isn't very sensitive to it, so you have to block out all other light to be able to see anything. edit: quick way to do this https://www.wikihow.com/Build-Near-Infrared-Goggles https://www.wikihow.com/Build-Near-Infrared-Goggles
- delecti 8y agoThe human lens already lets most infrared through. https://en.wikipedia.org/wiki/File:Human_crystalline_lens_OD.svg https://en.wikipedia.org/wiki/File:Human_crystalline_lens_OD... Infrared is everything to the right of 700 on the x-axis, and ultraviolet is left of 400. Our lens already lets through about the same proportion of infrared as most of the rest of visible light. Presumably that means that our retina is just insensitive to it.