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:
May. 02, 1989
Filed:
Sep. 21, 1987
Applicant:
Inventors:
John E Wreede, Monrovia, CA (US);
James E Scott, Culver City, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G03H / ;
U.S. Cl.
CPC ...
350320 ; 350-361 ; 430-1 ;
Abstract
A method of developing a holographically recorded interference pattern in a dichromatic gelatin structure is provided. The process includes developing the hologram pattern by hydration and dehydration, baking the developed hologram pattern at a temperature equal or above 120.degree. C. for approximately 24 hours, rehydrating the developed hologram and dehydrating the developed hologram at a temperature of approximately 60.degree. C. for approximately 48 hours until the design wavelength response is attained to provide a stabilized hologram.