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:
Jun. 06, 1995
Filed:
Oct. 30, 1992
Applicant:
Inventors:
Glen M Williams, Alexandria, VA (US);
David A Dutt, Irwin, PA (US);
Jacqueline A Ruller, Alexandria, VA (US);
Edward J Friebele, Cheverly, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03N / ; G02B / ;
U.S. Cl.
CPC ...
359-3 ; 359569 ; 430-2 ; 378 70 ;
Abstract
A fast process for photowriting a permanent, high efficiency optical grating comprises darkening glass by irradiation and photobleaching the darkened glass by exposing the glass to interfering writing laser beams, thereby forming the grating.
Quick Actions:
Williams, Glen. (1995). Preparation of permanent photowritten optical diffraction gratings in (U.S. Patent No. 5422745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5422745
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