patent · US6739726
Illumination engine for a projection display using a tapered light pipe
25 May 2004
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
An illumination engine for a projection display using a TLP including a reflector having a first focal point and second focal points. A source of electro-magnetic radiation disposed proximate to the first focal point of the reflector emits rays of radiation that reflect from the reflector toward the second focal point. A TLP collects and transmits substantially all of the radiation converged at the second focal point, adjusting the numerical aperture of the radiation, but cur...
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2002-02-05
- Source
- Google Patents bibliographic record
- Granted
- 2004-05-25
- Inventors
- Kenneth K. Li; Wavien Inc