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. 15, 2005
Filed:
Dec. 29, 2003
Frank J. Poradish, Plano, TX (US);
Steven M. Penn, Plano, TX (US);
Frank J. Poradish, Plano, TX (US);
Steven M. Penn, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A three element prism system and method for splitting/combining three different colors of light arranged such that the size of a selected one of the color prism, such as for example, the red prism and, consequently the clear aperture, are increased without a corresponding increase in the size of the other prisms (e.g., the blue and green prisms). This is accomplished by adjusting the air gap Aof the selected light path (e.g., red) so that the effective total selected light path T, which includes the selected light air gap Aand the selected light glass path Gis the same as the total path length T of both the other light paths (e.g., green and blue) comprised of air gap Aplus glass path G.