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:
Feb. 17, 1987
Filed:
Apr. 01, 1985
Applicant:
Inventor:
Juris Upatnieks, Ann Arbor, MI (US);
Assignee:
Environmental Research Institute of Michigan, Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H / ; G03H / ;
U.S. Cl.
CPC ...
350-367 ; 350-383 ; 350-385 ; 350320 ;
Abstract
Methods and apparatus for recording and displaying edge-illuminated holograms. Disclosed is a method for producing holograms whereby the reference beam, when recording, and the illumination beam, when displaying the hologram, impinge on the edge of the cover plate placed over the hologram. Edge-illumination of holograms makes possible holographic displays which fit in a volume having very little depth.