The CIE 1931 photopic luminous efficiency function V(lambda), also called the standard observer luminosity curve, from CIE 018:2019 Table 1. Tabulated at 1 nm intervals from 360 nm to 830 nm, with its peak at 555 nm.
Format
A data frame with 471 rows and 2 columns:
- lambda
Wavelength in standard air, in nm (360-830, step 1).
- W
V(lambda), dimensionless sensitivity from 0 to 1.
Source
International Commission on Illumination (CIE), CIE spectral luminous efficiency for photopic vision, DOI: doi:10.25039/CIE.DS.dktna2s3 , licensed CC BY-SA 4.0.