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. 2019 Jul 12;1(3):319–331. doi: 10.3390/clockssleep1030027

Figure 1.

Figure 1

Relative sensitivity curves for all of the opsins present in the mouse (A) and human (B) retina. Note the limitation of using blue light (~470 nm) to excite melanopsin only (λmax~480 nm); although there is significant overlap with the melanopsin peak sensitivity, this light also excites other photoreceptors to different extents.