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See the CIE 1931 color space, it is based on the sensitivity of the cones. You can find standards and tabels on the site of The Colour & Vision Research laboratory and database. The functions can be downloaded in cvs, xml, tabular or plot format, with stepsize of 0.1 nm, 1 nm or 5 nm. No mathematical formula, but a lookup or a formula doesn't make much ...


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No, the depths are reversed. The reason is that in free fusion (looking at the distance) each eye sees the image that correspond to its own side, that is, the left eye sees the left image and the right eye sees the right image, whereas in crossfusing (crossing your eyes), each eye sees the image on the opposite side, that is, the left eye sees the right ...


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There are devices called Monochromators, which can produce narrow band illumination with pretty good accuracy, so if implemented correctly, one may measure the visual range of a person, I would believe.


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What comes to mind is separating white light (e.g. from the sun) through a prism, and using the colors in the spectrum with corresponding wavelength to determine what range you can see.



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