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:
May. 04, 2004
Filed:
Jun. 07, 2001
Applicant:
Inventor:
Bin Zhao, Irvine, CA (US);
Assignee:
Cirvine Corporation, Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 ;
U.S. Cl.
CPC ...
G02B 5/30 ;
Abstract
A filter for filtering electromagnetic radiation has two polarization selection elements and a birefringent element assembly disposed intermediate polarization selection elements. The birefringent element assembly is configured so as to optimize contributions of a fundamental and at least one odd harmonic of a transmission vs. wavelength curve in a manner which enhances transmission vs. wavelength curve stopband depth and passband flatness, so as to enhance performance and mitigate cross-talk.