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:
Sep. 02, 2025
Filed:
May. 16, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Yoshihisa Tashiro, Tochigi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An optical system configured to guide light from a display element to an observation side includes a first lens having a first half-transmissive reflective surface provided to a surface on a display element side of the first lens, and a second lens having a second half-transmissive reflective surface. The light from the display element transmits through the second half-transmissive reflective surface, is reflected on the first half-transmissive reflective surface, is reflected on the second half-transmissive reflective surface, transmits through the first half-transmissive reflective surface, and is guided to the observation side. One of the first lens, the second lens, and another lens has negative refractive power. The first lens has a concave surface facing the observation side. A predetermined inequality is satisfied.