ANSI White: Difference between revisions
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Remove mention of Lumileds since they don't use ANSI white; add Luminus since they do
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(Remove mention of Lumileds since they don't use ANSI white; add Luminus since they do) |
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# 2700K | # 2700K | ||
This standard was adopted by | This standard was adopted by [[Cree]] to describe the tint of their LED products. They developed the concept further by dividing each ANSI quadrangle into four quadrants to get bins like 1A, 1B, 1C, and 1D being divisions of quadrangle 1 (6500K). Towards the cold end of the spectrum a non-ANSI quadrangle, quadrangle 0, was added. Tints lying outside of the ANSI standard, above and below quadrangles 0, 1, 2, 3, 4, and part of 5, are given names like 1R, 1S, 1T, and 1U. Cree subdivides regions 5, 6, 7, and 8 into even smaller subdivisions to get bins like 5A1, 5A2, 5A3, and 5A4. | ||
[[Luminus]] does something similar by subdividing the standard ANSI quadrangles and adding their own outside of those limits. | |||
[[File:Ansiwhite.jpg|thumb|left|400px|Chromaticity chart with ANSI quadrangles by CCT and Cree divisions and subdivisions]] <BR CLEAR="ALL"> | [[File:Ansiwhite.jpg|thumb|left|400px|Chromaticity chart with ANSI quadrangles by CCT and Cree divisions and subdivisions]] <BR CLEAR="ALL"> | ||