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:
Jul. 01, 2003
Filed:
Jan. 19, 2001
Applicant:
Inventors:
Chih-Kung Lee, Taipei, TW;
Chih-Ting Lin, Taipei, TW;
Shu-Sheng Lee, Taipei, TW;
Ching-Heng Tang, Taipei, TW;
Assignee:
Slight Opto-Electronics Co., Ltd., Taoyun, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/716 ; G02B 5/30 ; G02B 2/728 ;
U.S. Cl.
CPC ...
G02B 2/716 ; G02B 5/30 ; G02B 2/728 ;
Abstract
A light beam polarization converter converts non-polarized light beams of an illumination source having a plurality of polarization states into a single polarization state. The light beams from the bottom converged by the lower surface of the under plate and further parallelized by the upper surface thereof enter the converter. After a series of optical processes of polarization splitting, reflection or total reflection, and phase retardation within the converter, the light beams will pass through the converter as light beams of a single polarization state.