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:
Sep. 12, 1995
Filed:
Nov. 08, 1993
Applicant:
Inventor:
Roeland M Hekker, Fairfield, IA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
369102 ; 369 4412 ; 369 4423 ; 359 15 ;
Abstract
An optical recording, erasing and playback system. One or more functions in a conventional optical disc system are performed by one or more holographic optical elements (HOE). Exemplary of the functions performed by the HOE are collimation, beam shaping, combining of beams, and focusing. According to preferred embodiments, volume HOEs are utilized.
Hekker, Roeland. (1995). Holographic elements for an optical recording system (U.S. Patent No. 5450378). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5450378
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile