×

Laser Projection System With a Spinning Polygon for Speckle Mitigation

  • US 20100277702A1
  • Filed: 04/29/2009
  • Published: 11/04/2010
  • Est. Priority Date: 04/29/2009
  • Status: Active Grant
First Claim
Patent Images

1. A laser projection system comprising:

  • (i) a coherent light source including at least one laser configured to emit an output beam carrying signal data;

    (ii) a scanning optics, the scanning optics comprising at least one scanning reflector, the scanning reflector positioned in an optical path of the output beam; and

    (iii) a rotating polygon prism;

    wherein(a) the scanning reflector is configured to direct the output beam towards the polygon prism and scan the output beam across a projection surface; and

    (b) the polygon prism is configured to transmit the scanned output beam through its body, and create a virtual image of the scanning reflector, such that said virtual image of the scanning reflector is moving when said polygon prism rotates.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×