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:
Jun. 19, 2001
Filed:
May. 06, 1999
Frank J. Poradish, Plano, TX (US);
Duane S. Dewald, Dallas, TX (US);
Steven M. Penn, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An optical system for illumination spatial light modulators. The optical system includes a tall color splitting prism (,) with substantially symmetrical face bonding areas, thereby eliminating the need for external holding plates. The face bonding areas (,) are outside the optically active area. The tall prism (,) allows for better control of stray light, including a heat sink (,) for absorbing stray or OFF state light, preventing overheating of the optical assembly. The tall prism (,) also allows adjustments to be made to any other optical components such as projection lenses and TIR prisms (,).