dominant wavelength

Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to dominant wavelength: Complementary wavelength, excitation purity

wavelength, dominant (of a colour stimulus, not purple) 

Wavelength of the monochromatic light stimulus that, when combined in suitable proportions with the specified achromatic light stimulus, yields a match with the colour stimulus considered. Note: When the dominant wavelength cannot be given (this applies to purples), its place is taken by the complementary wavelength (CIE). See complementary colour.
References in periodicals archive ?
Simultaneous measurements - has the ability to determine illuminance, dominant wavelength, color temperature, chromaticity, and excitation purity of a light source
Since the difference of a single dominant wavelength bin can be noticeable to the human eye, lighting designers with specific requirements in their LEDs as a component of their lighting designs can specify a binning code or binning number to ensure the LEDs perform with consistency.
Along with all available device options, Everlight offers precise binning for luminous flux, forward voltage, dominant wavelength and color temperature, allowing strictly regulated end solutions.
The Avago HSMR-CL25 is indium gallium nitride (InGaN) blue, with 473 nm dominant wavelength and 11.
The HSMF-C114 combines InGaN (indium gallium nitride) blue (470 nm dominant wavelength, 70 mcd typical brightness at 20 mA operating current); InGaN green (525 nm dominant wavelength, 180-mcd typical brightness); and AlInGaP (aluminum indium gallium phosphide) red (626 nm, 85 mcd) die.