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. 20, 2022
Filed:
Nov. 14, 2019
Seiko Epson Corporation, Tokyo, JP;
Shinichi Wakabayashi, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An optical path shifting device includes: a holding frame holding a rectangular glass plate; a support part supporting the holding frame in a swingable state; and an actuator causing the holding frame to swing. The holding frame has a first shaft part at a position opposed to a first corner part of the glass plate, and a second shaft part at a position opposed to a second corner part situated in a diagonal direction from the first corner part. The holding frame is connected to the support part by the first and the second shaft parts. The actuator is arranged at a position opposed to a third corner part and has a permanent magnet and a coil opposed to each other. A first opposing surface of the permanent magnet and a second opposing surface of the coil are arranged in a direction intersecting a surface of the glass plate.