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:
Dec. 19, 1995
Filed:
Jul. 14, 1993
Applicant:
Inventors:
Stephen R Redfield, Austin, TX (US);
Gerald R Willenbring, Austin, TX (US);
Assignee:
Tamarack Storage Devices, Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03H / ; G11B / ;
U.S. Cl.
CPC ...
359-3 ; 359 22 ; 359 25 ; 369 94 ; 369103 ;
Abstract
A holographic storage media for storing digital data in the form of an interference grating is provided which includes a substrate (48) over which a perforated opaque structure (50) is disposed. The opaque structure (50) has wells (52) disposed therein. In the wells, a photopolymer material (54) is disposed to form data storage regions (54). This is covered by a capping layer (56). The wells (52) are chemically and/or optically isolated from each other.