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From: tomg@hpcvlx.cv.hp.com (Thomas J. Gilg)
Newsgroups: comp.graphics
Subject: Re: standard RGB wavelengths?
Message-ID: <101880022@hpcvlx.cv.hp.com>
Date: 9 Jul 90 20:40:10 GMT
References: <7833@ccncsu.ColoState.EDU>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 23


> Can someone give me the standard wavelengths of the red, green and blue
> television/monitor phosphor emissions (or of the Macintosh color monitor in 
> particular)?  As long as we're at it, what is the range of visible colors 
> in the electromagnetic spectrum?

International Commission on Illumination has:

     red = 700.0nm,  green = 546.1nm, blue = 435.8nm

Have seen other numbers such as 700.0nm, 505.0nm, 470.0nm

Specs I have for a SONY Color Monitor (1280x1024) in CIEXYZ space are:

  red = ( 0.64, 0.33 )      +/- 0.02
  grn = ( 0.29, 0.60 )    
  blu = ( 0.15, 0.06 )
  white target = ( 0.283, 0.298 )

Range between 400 and 700nm usually.  Depends on person/age.

Thomas Gilg
tomg@cv.hp.com