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:
Jul. 18, 2023
Filed:
Sep. 15, 2021
Seiko Epson Corporation, Tokyo, JP;
Eiji Morikuni, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An optical device includes a first optical system having an optical element, a second optical system having a lens and disposed at a reduction side of the first optical system, a first holding member holding the optical device, a second holding member holding the lens, and a movement mechanism configured to move the first holding member in optical axis directions. The optical element has a reflection surface. The first holding member has a first holding portion holding the optical element and a first coupling portion extending from the first holding portion to a second optical system side. The movement mechanism has a transport mechanism configured to move the first coupling portion along the optical axis directions, and a guide mechanism configured to guide the first holding member in the optical axis directions. The guide mechanism restricts rotation of the first holding member around the optical axis.