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:
Aug. 23, 2022
Filed:
Jan. 23, 2019
Applicant:
Fusao Ishii, Pittsburgh, PA (US);
Inventor:
Fusao Ishii, Pittsburgh, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/14 (2006.01); G02B 27/10 (2006.01); G02B 27/02 (2006.01); G09G 5/00 (2006.01); H04N 7/00 (2011.01); G02F 1/1335 (2006.01); G02B 27/01 (2006.01); G06T 19/00 (2011.01); G02B 27/09 (2006.01); G02B 3/08 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 3/08 (2013.01); G02B 27/0977 (2013.01); G06T 19/006 (2013.01); G02B 2027/0178 (2013.01);
Abstract
A projection display having an optical waveguide for a see-though display system using Fresnel mirrors is disclosed. A display using this waveguide enables high resolution, free from chroma aberration, wide viewing angle, large eye-box and very compact size.