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. 04, 2000
Filed:
Sep. 15, 1997
Applicant:
Inventor:
Karl Heinz Schuster, Konigsbronn, DE;
Assignee:
Carl-Zeiss-Stiftung, Heidenheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359494 ; 359500 ; 359352 ;
Abstract
The invention is directed to a double refracting planar plate arrangement and a .lambda./4 plate suitable for deep ultraviolet light. The .lambda./4 plate or the like is configured as a planar plate with stress-induced birefringence. The planar plate 1 is made of high quality quartz glass and is torsion-free and uniformly loaded in tension via suitable construction having several parallel tension devices (3, 7).