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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.:

US 11656458 B1

PDFFull Text
Date of Patent:
May. 23, 2023

Filed:

Jul. 21, 2020

Optics of a display using an optical light guide

Applicants:

Fusao Ishii, Pittsburgh, PA (US);

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Fusao Ishii, Pittsburgh, PA (US);

Mikiko Nakanishi, Tokyo, JP;

Kazuoki Ichikawa, Tokyo, JP;

Mikio Iwamura, Tokyo, JP;

Assignees:

Other;

NTT DOCOMO, Inc., Toyko, JP;

Attorney:

Young Basile Hanlon & MacFarlane, P.C.

Primary Examiner:

Dawayne Pinkney

Int. Cl.
CPC ...
G02B 26/00 (2006.01); G02B 27/01 (2006.01); G02B 27/12 (2006.01); F21V 8/00 (2006.01); G02B 13/22 (2006.01); G02B 5/09 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); G02B 5/09 (2013.01); G02B 6/001 (2013.01); G02B 6/0006 (2013.01); G02B 6/0028 (2013.01); G02B 6/0075 (2013.01); G02B 13/22 (2013.01); G02B 2027/0123 (2013.01);
Abstract

A projection display having an optical light guide for a see-though display system using holographic optical element or diffractive optical element as in-coupling optics and combined with Fresnel mirrors as out-coupling optics is disclosed. A display using this light guide enables a wide angle (e.g., over 90 degrees field of view), high resolution, and a large eye-box with a compact size.

Find Patent Forward Citations

Ishii, Fusao. (2023). Optics of a display using an optical light guide (U.S. Patent No. 11656458). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11656458

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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