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.:

US 6839177 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 04, 2005

Filed:

Feb. 14, 2002
Applicant:

Frank E. Aspen, St. Paul, MN (US);

Inventor:

Frank E. Aspen, St. Paul, MN (US);

Assignee:

Imation Corp., Oakdale, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 110 ; G02B 2728 ; G02B 532 ;
U.S. Cl.
CPC ...
Abstract

A holographic data storage medium having an anti-reflective coating is described. The anti-reflective coating can be made to reduce reflectivity for S-polarized light over a wide range of incident angles. Moreover, the anti-reflective coating can be made to have a sufficiently high transmittance for the S-polarized light. The coating may improve performance of the holographic data storage medium, and can facilitate higher storage densities than can be achieved without the coating.


Find Patent Forward Citations

Aspen, Frank. (2005). Anti-reflective coating for holographic data storage media (U.S. Patent No. 6839177). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6839177

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