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Methods for combining camera and projector functions in a single device

  • US 8,411,194 B2
  • Filed: 08/22/2005
  • Issued: 04/02/2013
  • Est. Priority Date: 08/22/2005
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a light source operable to project a light beam;

    a projection lens;

    a reflective light modulator comprising a plurality of switching elements operable to receive the light beam along a first optical path extending from the light source to the reflective light modulator and to reflectively modulate the light beam along a second optical path extending from the light modulator through the projection lens; and

    an image sensor situated substantially along the first optical path, wherein the image sensor is configured to capture an image from the second optical path passing through the projection lens to the reflective light modulator and reflected along the first optical path by the switching elements of the reflective light modulator.

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