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:
Mar. 12, 1996
Filed:
Aug. 31, 1993
John E Wreede, Azusa, CA (US);
John E Gunther, Torrance, CA (US);
Michael J Virgadamo, Pasadena, CA (US);
Kevin Yu, Temple City, CA (US);
Lillian Yin, Alhambra, CA (US);
Jerry L Mulder, Arcadia, CA (US);
Richard B Upper, Sherman Oaks, CA (US);
James E Scott, Hermosa Beach, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
An encoded hologram that produces a first image and a second image pursuant to playback illumination, wherein the first image is resolvable by human vision while the second image is not resolvable by human vision when the playback illumination comprises non-coherent broad band illumination, and wherein the second image is machine readable when the hologram is illuminated with playback illumination that is based on the original reference beam.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile