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VCSEL based low coherence emitter for confocal 3D scanner

  • US 9,660,418 B2
  • Filed: 08/27/2014
  • Issued: 05/23/2017
  • Est. Priority Date: 08/27/2014
  • Status: Active Grant
First Claim
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1. An apparatus to measure an object, the apparatus comprising:

  • a plurality of light sources arranged to generate a plurality of light beams; and

    a plurality of spot generating lenses to focus the plurality of beams to a plurality of focused spots, each of the plurality of focused spots comprising a focused portion of each of the plurality of light beams, said focused portion of each of the plurality of beams overlapping with other focused portions of other beams in order to define said each of the plurality of focused spots and inhibit noise, wherein the plurality of spot generating lenses is separated from the plurality of light sources with a separation distance sufficient to overlap the plurality of light beams at each of the spot generating lenses.

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