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:
Jan. 03, 2017
Filed:
Jul. 17, 2013
National Institute of Information and Communications Technology, Koganei-shi, Tokyo, JP;
Kenji Yamamoto, Tokyo, JP;
Yasuyuki Ichihashi, Tokyo, JP;
Takanori Senoh, Tokyo, JP;
Ryutaro Oi, Tokyo, JP;
Taiichiro Kurita, Tokyo, JP;
Abstract
An electronic holographic display device includes: a beam emitting device; a plurality of polarizing beam splitters; a plurality of spatial light modulators, each of which is disposed with prescribed distances therebetween and modulates a beam vertically made incident from the corresponding polarizing beam splitter; a magnifying optical system; and a reducing optical system. The magnifying optical system includes a first lens array and a second lens array. The reducing optical system includes a third lens array and a fourth lens array. A distance 'a' between the spatial light modulator and the first lens is represented by a=(k+2)f/(k+1), wherein a ratio 'k' is a distance between two adjacent spatial light modulators, to a size of the spatial light modulator, and fis a focal point distance of the first lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile