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. 19, 2022
Filed:
Apr. 29, 2021
Fujifilm Corporation, Tokyo, JP;
Tetsuo Kamigaki, Saitama, JP;
Hitoshi Shimizu, Saitama, JP;
Yasuto Kuroda, Saitama, JP;
Hironobu Kayano, Saitama, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A projection lens that is mounted on a housing of a projection device including an electro-optical element includes a first holding unit which is connected to the housing and through which light parallel to a first optical axis serving as an optical axis corresponding to luminous flux incident from the housing passes, a second holding unit through which light parallel to a second optical axis obtained from bending of the light parallel to the first optical axis passes and which is rotated with respect to the first holding unit in a rotatable range less than 360°, a first rotation control unit that controls rotation of the second holding unit, and a first electric drive unit. The first rotation control unit is provided on a first outer peripheral surface of one of the first holding unit and the second holding unit. The first electric drive unit is provided on a second outer peripheral surface of the other of the first holding unit and the second holding unit. The first rotation control unit and the first electric drive unit are in a relationship where the first rotation control unit and the first electric drive unit overlap with each other in an extending direction of the first optical axis, and the first rotation control unit and the first electric drive unit are spaced apart from each other in the rotatable range.