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Method and device for efficiently generating white light, composed of three unique spectral colors, with the objective of general good-seeing by normal human observer

  • US 20040175636A1
  • Filed: 02/27/2004
  • Published: 09/09/2004
  • Est. Priority Date: 03/04/2003
  • Status: Abandoned Application
First Claim
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1. A device which efficiently generates white light and illuminates objects with a color appearance which is reasonably representative of their color appearance under natural light, said device comprising:

  • (a) a three-component, light-generating medium forming an operative part of said device;

    (b) means for connecting said device to a source of predetermined electric potential to energize said medium to a visible-light-generating condition;

    (c) a first component of said medium when energized exhibiting a green laser emission located substantially in the wavelength range of from 515 nm to 540 nm;

    (d) a second component of said medium when energized exhibiting an orange-red laser emission located substantially in the wavelength range of from 600 nm to 625 nm;

    (e) the third component of said medium when energized exhibiting a blue-violet laser emission located substantially in the wavelength range of from 440 nm to 465 nm; and

    (f) the relative proportions of said components of said light-producing medium being such that when their emissions are blended, there is produced white light of predetermined ICI coordinates.

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