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:
Mar. 31, 2020
Filed:
Mar. 16, 2018
Applicant:
J.a. Woollam Co., Inc., Lincoln, NE (US);
Inventor:
Craig M. Herzinger, Lincoln, NE (US);
Assignee:
J.A. WOOLLAM CO., INC., Lincoln, NE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
G02B 27/28 (2013.01); G02B 5/3083 (2013.01);
Abstract
A retarder that comprises at least two plates, each of which comprise two surfaces that are parallel to, or substantially parallel to one another, said plates being tipped with respect to one another so that the surfaces of one thereof are not parallel to the surfaces of the other, each said plate further comprising a biased fast axis that is neither parallel to, or perpendicular to surfaces of said plates.