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SCANNING PROJECTION APPARATUS AND PORTABLE PROJECTION APPARATUS

  • US 20150109586A1
  • Filed: 10/17/2014
  • Published: 04/23/2015
  • Est. Priority Date: 10/18/2013
  • Status: Abandoned Application
First Claim
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1. A scanning projection apparatus comprising:

  • a light source module which includes a laser light source to emit a laser beam;

    a light deflection unit which includes an oscillating mirror unit and performs a two-dimensional scanning with the laser beam emitted from the light source module by the mirror unit to project a projection image onto an image projection surface;

    a light detection unit which detects a distance from the mirror unit to the image projection surface or a difference in distance in the image projection surface; and

    a control unit which controls an oscillation angle of the mirror unit based on distance information from the light detection unit.

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