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:
Jul. 21, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Akira Yamamoto, Ageo, JP;
Keiichiro Ishihara, Ageo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/00 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); G02B 27/0081 (2013.01); G02B 2027/0116 (2013.01);
Abstract
An optical system guides a light beam from a display element, the optical system comprising a plurality of lenses and an optical element. The optical element includes an entrance surface which the light beam from the plurality of lenses enters, a reflection surface configured to reflect the light beam, and an emission surface from which the light beam is emitted toward an exit pupil. The light beam from the display element enters the optical element via the plurality of lenses, is reflected a plurality of times inside the optical element, and heads for the exit pupil. A predetermined condition is satisfied.