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:
Mar. 26, 2024
Filed:
Jul. 21, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Kazutaka Inoguchi, Tokyo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 9/14 (2006.01); G02B 17/08 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 9/14 (2013.01); G02B 17/0816 (2013.01); G02B 17/0852 (2013.01); G02B 17/0856 (2013.01); G02B 2027/011 (2013.01); G02B 2027/0116 (2013.01);
Abstract
An optical system configured to guide a light beam from a display element includes a positive lens, a negative lens, and an optical element having at least three optical surfaces. The light beam from the display element is reflected a plurality of times inside the optical element via the positive lens and the negative lens, and then travels to an exit pupil. A predetermined condition is satisfied.