Optical system for projection displays

Optical system for projection displays

  • CN 1,375,076 A
  • Filed: 03/20/2000
  • Published: 10/16/2002
  • Est. Priority Date: 06/29/1999
  • Status: Abandoned Application
First Claim
Patent Images

1. image projection system, it comprises:

  • (a) light source, it provides illumination light;

    (b) a plurality of optionally scalable reflecting elements, they are configured in the publicly-owned plane, and described element can regulated between the primary importance and the second place at least;

    (c) lens, it has the principal plane that is parallel to described publicly-owned plane;

    With(d) prism, it is between described lens and described a plurality of reflecting element;

    It is characterized in that lens have acceptance angle, prism comprises first and second release surfaces, and these two surfaces make with respect to light source, a plurality of reflecting element and lens orientation;

    (i) light that sends of light source passes first and second release surfaces, arrive a plurality of reflecting elements and(ii) the light in the reflection of primary importance place reflecting element is reflected to several directions at the second release surface place, and these directions are in the acceptance angle of lens.

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