Lighting Toolbox documentation

planck

Calculates the spectral radiant exitance M of a Planck radiator for a given black body temperature

Determines the CIE general standard sky type for a given luminance distribution of a Tregenza hemisphere

Creates a two-dimensional coordinate grid for illuminance measurements, depending on the size of the measurement area

Returns the white point in CIE 1931 x and y chromaticity of any CIE standard illuminant

Calculates the integrated photometric value Y of a V(λ) weighted spectral power distribution

Calculates the normalized CIE 1931 colour coordinates x,y,z for a given spectral power distribution

Determines the white point of an illuminant’s spectral power distribution

Weights given spectra with provided reference weighting functions and returns the integrated values

Calculates the corresponding luminance distribution for a Tregenza hemisphere with 145 patches according to the CIE procedure described in ISO 15469

Returns the α-opic or blue light hazard luminous efficacy K for any given spectral power distribution

Calculates the f1 error of photometers, or more precisely the mismatch index to the V(λ) curve

Derives the α-opic quantities from any given spectral power distribution

Determines the α-opic equivalent daylight D65 quantity for a given spectrum

Determines the melanopic equivalent daylight D65 illuminance for a given spectrum

Calculates the luminous flux Φ of a luminaire from its luminous intensity distribution curve

Plots a 2D illustration of a given light intensity distribution curve

Determines the nearest neighbour patches and the angular distance to a given tregenza hemisphere patch

Creates a sRGB colour image from a hyperspectral image matrix

Creates a plot of the chromatic shift in a’ and b’ dimension according to the Colour Fidelity Index in CIE 224:2017 and ANSI TM30-20

Plots the CIE 1976 u’ and v’ chromaticity diagram