Example image of eyePlorer eyePlorer map for 'Luminosity function': Eye International Commission on Illumination CIE 1931 color space Photopic vision Scotopic vision Luminous flux Lumen (unit) Spectral power distribution Inner product space Dot product Luminous coefficient Candela Luminous intensity Violet (color) A-weighting Image sensor Quantum efficiency Illuminance Luminance (relative) Photometry (optics) Lime (color) Lux Visible spectrum Exposure (photography) Bark scale Light meter Luminous efficacy List of astronomy acronyms Electromagnetic spectrum