The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2013
Filed:
Jul. 01, 2008
Steven Edward Smith, Allen, TX (US);
Patrick Rene Destain, Allen, TX (US);
Steven Edward Smith, Allen, TX (US);
Patrick Rene Destain, Allen, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A projection display system and method is provided. One or more light sources, such as solid state lasers, generates light of various colors that is modulated by a spatial light modulator, such as a digital micro-mirror device. The projection optics of the system include a telecentric rear group of lenses followed by a pair of aspheric lenses formed of a continuous piece of material. A folding mirror, such as a single-piece or multi-piece angular mirror, is disposed along the optical path between the aspheric lenses, to reduce the depth of the enclosure, and an aspheric mirror projects the image onto a projection screen. A folding mirror may be used after the aspheric mirror to further reduce the depth of the enclosure.