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:
Dec. 28, 2021
Filed:
Dec. 15, 2017
Applicants:
Fusao Ishii, Pittsburgh, PA (US);
Mikiko Nakanishi, Tokyo, JP;
Kazuhiko Takahashi, Tokyo, JP;
Yuji Aburakawa, Tokyo, JP;
Keiichi Murakami, Tokyo, JP;
Inventors:
Fusao Ishii, Pittsburgh, PA (US);
Mikiko Nakanishi, Tokyo, JP;
Kazuhiko Takahashi, Tokyo, JP;
Yuji Aburakawa, Tokyo, JP;
Keiichi Murakami, Tokyo, JP;
Assignees:
Other;
NTT DOCOMO, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 27/01 (2006.01); G02B 27/18 (2006.01); G02B 27/48 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0031 (2013.01); G02B 27/0172 (2013.01); G02B 27/18 (2013.01); G02B 27/48 (2013.01); G02B 2027/011 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0123 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01);
Abstract
A see-through image display system having a DOE often has undesirable light or so called ghost images due to the quantization of saw tooth shape of DOE surface. This invention provides ways to eliminate ghost images.
Ishii, Fusao. (2021). Ghost image elimination of doe using fourier optics method (U.S. Patent No. 11209586). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11209586
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile