File talk:Cone-absorbance-en.svg

Problem with these curves

I replaced these curves in the English wikipedia article on cone cells, because they have several problems:

1. They are unsourced, so can't be verified.

2. They show curves that are not even quite unimodal, unlike anything in the literture.

3. The curves don't fall off as much as expected, esp. at 400 nm, so are useless as in indication of visual sensitivity

4. It's really unclear whether these "asborbances" are supposed to like "responsivities". They don't look it. Maybe absorbances are supposed to be different from responsivities, and if so we should say so, but what I've seen suggests they should be the same.

Does anyone know where they came from, so we can check and adjust them, and say more clearly what they represent? Dicklyon 16:25, 30 September 2007 (UTC)

Have a look here: Image:Cone-response.png Ok, there's also no source but I'll link this discussion to the PNG-picture. Bubinator 17:14, 5 December 2007 (UTC)

Why do the curves for R, M and S suddenly start at 400nm and do not have zero absorbance there? Hybrid Dog (トーク) 19:27, 14 April 2023 (UTC)

Upload problem?

I uploaded a new version but it wasn’t shown properly. Even though I reverted my modification, it is still corrupted. I don’t know why. — TAKASUGI Shinji (talk) 08:51, 11 October 2011 (UTC)

Anomie has fixed it. Thanks. — TAKASUGI Shinji (talk) 02:08, 19 October 2011 (UTC)