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:
Apr. 29, 1997
Filed:
Mar. 15, 1995
Applicant:
Inventors:
Marc K von Gunten, Los Altos, CA (US);
Ron P Bevis, San Jose, CA (US);
Assignee:
Spectra-Physics Lasers, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359487 ; 359483 ; 359495 ; 359496 ; 359497 ; 359498 ; 359583 ; 359586 ; 359587 ; 359589 ;
Abstract
A broad band polarizing beam splitter includes a first prism, including an incident beam surface, and an interface surface. A second prism is also included with an interface surface. The second prism is positioned adjacent to the first prism with the interface surfaces of the first and second prisms being adjacent to each other. A coating is disposed between the two interface surfaces. The coating is made of a geometric or arithmetic progression of layer thicknesses of alternating high and low refractive indices. A ratio of high refractive index to low refractive index is 1.1 or greater.