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. 12, 1985
Filed:
Apr. 18, 1983
H John Caulfield, Nagog Woods, MA (US);
Aerodyne, Research, Inc., Billerica, MA (US);
Abstract
A hologram is written from x, y, z data by presenting an information beam at a holographic medium with x and y coordinates represented by x and y position on the medium and z coordinates represented by distance between the holographic medium and a point position of the beam close to the medium, while simultaneously presenting a reference beam in interference with the information beam and of a size comparable with the size of the information beam at the holographic medium. The area of the information beam and the reference beam at any position on the holographic medium is a small fraction of the total area of the hologram.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile