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. 22, 1999
Filed:
Aug. 30, 1996
Yansong Chen, Houston, TX (US);
Shangquiq Liu, Beijing, CN;
Alex Ignatiev, Houston, TX (US);
NaiJuan Wu, Houston, TX (US);
University of Houston, Houston, TX (US);
Abstract
A birefringence polarizing beam-splitter is provided. A series of periodic blazed grooves or grooves with echelon profile having a number of steps is provided on the surface of an optically birefringent material. The birefringent substrate material may be crystalline or plastic. In another embodiment, two substrates of birefringent material having a series of periodic blazed grooves or grooves with echelon profile are combined to achieve greater angle of beam splitting.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile