Scanned imaging apparatus with switched feeds

  • US 6,714,331 B2
  • Filed: 01/10/2003
  • Issued: 03/30/2004
  • Est. Priority Date: 04/20/2001
  • Status: Active Grant
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First Claim
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1. An image display for producing an image in an image field, comprising:

  • a first light source oriented to emit a first beam along a first optical path;

    a second light source oriented to emit a second beam along a second optical path that is not parallel to the first optical path, the second optical path converging with the first optical path at a convergence location;

    a mirror positioned substantially at the convergence location and oriented to direct the first beam to a first region of the image field and oriented to direct the second beam to a second region of the image field different from the first region, the mirror being mounted for pivoting about a pivot axis in a forward direction and a reverse direction;

    a drive mechanism coupled to the mirror and operative to pivot the mirror about the pivot axis in a predetermined scan pattern including movement in each of the forward and reverse directions; and

    an electronic controller coupled to both of the first and second light sources, the controller being operative to activate the first light source when the mirror pivots in the forward direction and to activate the second light source when the mirror pivots in the reverse direction.

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