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. 30, 1996
Filed:
Sep. 30, 1994
Applicant:
Inventors:
Samuel F Pellicori, Santa Barbara, CA (US);
David E Stevenson, Northfield, MN (US);
Assignee:
Photran Corporation, Lakeville, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359585 ; 359586 ; 359588 ;
Abstract
An anti-reflection coating includes a first layer of a transparent material having a low refractive index a second layer of an absorbing metal, a third layer of a material which may have a high or a low refractive index and a fourth layer of titanium nitride.