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:
Aug. 20, 1996
Filed:
May. 31, 1995
Austin L Huang, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A light separator (20) for testing the tilt angles of mirror elements (21) of a digital micro-mirror device. The light separator (20) is comprised of two triangular prisms (23, 25). A bottom prism (23) receives light from all mirror elements (21). It transmits light from all mirror elements having a tilt angle over a specified angle (21a, 21b) from a different face than light from mirror elements having a tilt angle less than the specified angle (21c). A top prism (25) receives light from one face of the bottom prism (23). It further divides the light, so that light from all mirror elements having a tilt angle within a specified range (21a) is transmitted from one face and light from other mirror elements (21b) is transmitted from another face.