Projection device and its inner full-reflection prism

Projection device and its inner full-reflection prism

  • CN 101,169,576 A
  • Filed: 10/27/2006
  • Published: 04/30/2008
  • Est. Priority Date: 10/27/2006
  • Status: Active Application
First Claim
Patent Images

1. projection arrangement comprises:

  • Inner full-reflection prism comprises;

    First prism has first surface, second surface and the 3rd surface;

    Second prism has incidence surface and exiting surface, and wherein this exiting surface is relative with this first surface, and has a gap between this exiting surface and this first surface;

    Anti-total reflection layer is connected between this exiting surface of part and this first surface of part;

    Illuminator is disposed at by this incidence surface, is suitable for providing illuminating bundle towards this incidence surface;

    Optical valve in reflection type is disposed at by this second surface, and is positioned on the bang path of this illuminating bundle, and wherein this optical valve in reflection type is suitable for converting this illuminating bundle to image beam;

    AndProjection lens is disposed at side, the 3rd surface, and is positioned on the bang path of this image beam.

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