File:Linear visible spectrum.svg

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Original file (SVG file, nominally 605 × 115 pixels, file size: 6 KB)

Summary

Description
English: A linear representation of the visible light spectrum. Colour ranges were taken from 'CRC Handbook of Fundamental Spectroscopic Correlation Charts' (see w:Visible spectrum). Spectral XYZ locus coordinates were found here. Every 10nm, the spectral locus point was used as the initial point in a search for a matching sRGB colour (assuming "Dim" viewing condition). The search was carried out by a binary search along a line in CIECAM02 JCh space between the spectral point, and a point with 0.3 * brightness (J), 0 chroma (C), and the same hue (h) as the spectral point. The search finished when a point was found that was in sRGB space. The CAT02 matrix was modified as suggested in Brill(2008) to reduce yellow-blue problems by replacing the bottom row (0.0030, 0.0136, 0.9834) with (0,0,1). An iterative smoothing was carried out to eliminate the largest jumps in chroma (greater than 5% change). Code used to generate the colour gradient can be found here.
Esperanto: Koloroj videblaj
Nederlands: Kleurenspectrum
中文（简体）：​软件模拟的可见光谱。
中文（繁體）：​軟體模擬的可見光譜。
Date
Source Own work
Author Gringer
Other versions

Derivative works of this file:

  • Inverse version of this image (linear by frequency in THz)
    Inverse version of this image (linear by frequency in THz)
  • Logarithmic version of this image (logarithmic by wavelength in nm)
    Logarithmic version of this image (logarithmic by wavelength in nm)
  • PNG version that this file was originally based on.
    PNG version that this file was originally based on.

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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inception

27 August 2008

media type

image/svg+xml

data size

6,640 byte

checksum

04b42f0f1124d028704825398c78db433738aac8

determination method or standard: SHA-1

File history

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Date/TimeThumbnailDimensionsUserComment
current10:44, 1 September 2024Thumbnail for version as of 10:44, 1 September 2024605 × 115 (6 KB)wikimediacommons>GringerAdd style sheet template to make absorption / emission spectrums easier

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