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Optical scanner, laser image projector adopting the optical scanner, and method of driving the laser image projector

  • US 6,636,339 B2
  • Filed: 05/04/2001
  • Issued: 10/21/2003
  • Est. Priority Date: 11/03/2000
  • Status: Expired due to Term
First Claim
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1. A laser image projector comprising:

  • a light source for emitting a white light beam;

    a beam separating unit for separating the white light beam into three main monochromic beams;

    an acousto-optic modulating unit for modulating the three main monochromic beams based on color signals;

    a beam combining unit for combining the monochromic beams modulated by the acousto-optic modulating unit into a single combined beam; and

    a laser scanning unit for scanning the single beam combined with the monochromic beams to form an image, wherein the laser scanning unit comprises a horizontal scanning mirror for horizontally scanning the single combined beam, and a vertical scanning mirror for vertically scanning a beam incident from the horizontal scanning mirror and, wherein the laser scanning unit further comprises a memory for temporarily storing an image information horizontally scanned from the right to the left.

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