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Illuminator using non-uniform light sources

  • US 20100284201A1
  • Filed: 05/06/2010
  • Published: 11/11/2010
  • Est. Priority Date: 05/06/2009
  • Status: Abandoned Application
First Claim
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1. An optical system comprising at least:

  • a source module comprising a non-uniform extended source;

    at least one of a lightpipe and a lenslet array arrangement; and

    an optical engine, comprising;

    a first toroidal ray guide defining an axis of revolution and having a toroidal entrance pupil adapted to image radiation originating from the source module that is incident on the entrance pupil, said first toroidal ray guide having a first imaging surface opposite the entrance pupil; and

    a second ray guide also defining the axis of revolution and having a second imaging surface adjacent to the first imaging surface, wherein at least one of;

    the lightpipe is disposed between the source module and the optical engine,and the optical engine is disposed between the source module and the lenslet array arrangement.

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