The concept of intermediate vision
The spectral luminous efficiencies of the two visual cells, the current luminous fluxes of the V(λ) and V'(λ) curves, are calculated from V(λ).
V(λ) and V'(λ) are spectral luminous efficiencies with a maximum of 1.
Km•V(λ) and Km′• V'(λ) are spectral optical performance. The maximum values ​​are: 683 lm/W and 1700 lm/W, respectively.
The change in spectral light performance in the intermediate vision segment between 0.001-3 cd/m2 is continuous. Depending on the brightness adaptation level of the eye.
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