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Process and apparatus for generating at least three laser beams of different wavelength for the display of color video pictures

  • US 6,233,025 B1
  • Filed: 10/06/1998
  • Issued: 05/15/2001
  • Est. Priority Date: 09/08/1994
  • Status: Expired due to Term
First Claim
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1. A three-color coherent light system, comprising:

  • a laser source for generating a laser beam;

    an optical parametric oscillator for providing a signal beam and an idler beam;

    means for supplying said laser beam to said optical parametric oscillator for pumping said optical parametric oscillator to produce said signal and idler beams;

    means for providing said laser beam as a source of coherent green light;

    means for generating the second harmonic of said signal beam as a source of coherent blue light; and

    means for generating the second harmonic of said idler beam as a source of coherent red light.

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