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. 08, 2023
Filed:
Aug. 23, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Kazutaka Inoguchi, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An apparatus includes a display element, and an optical system configured to guide to an exit pupil the display light and external light. The optical system includes a first polarization separating element, a first optical unit, and a second optical unit that includes a half-transmissive reflective surface, a phase plate, and a second polarization separating element. The external light transmits through the first polarization separating element and the second optical unit toward the exit pupil. The display light transmits through the first polarization separating element, is reflected by the first optical unit and the first polarization separating element, is twice reflected by the second optical unit, and travels to the exit pupil. The display light forms an intermediate image in an optical path from the first optical unit to the second optical unit.