Scotopic vision

The CIE 1951 scotopic luminosity function. The horizontal axis is wavelength in nm.

Simulated examples of vision under low light. Top: human; bottom: cat

Scotopic vision is the vision of the eye under low light conditions. The term comes from Greek skotos meaning darkness and -opia meaning a condition of sight. In the human eye cone cells are nonfunctional in low light – scotopic vision is produced exclusively through rod cells which are most sensitive to wavelengths of light around 498 nm (green-blue) and are insensitive to wavelengths longer than about 640 nm (red).

单词	Scotopic adaptation
释义	Scotopic adaptation 英语百科 Scotopic vision Scotopic vision is the vision of the eye under low light conditions. The term comes from Greek skotos meaning darkness and -opia meaning a condition of sight. In the human eye cone cells are nonfunctional in low light – scotopic vision is produced exclusively through rod cells which are most sensitive to wavelengths of light around 498 nm (green-blue) and are insensitive to wavelengths longer than about 640 nm (red).
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Scotopic adaptation

Scotopic vision