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:
Jan. 04, 2022
Filed:
Dec. 18, 2020
Seiko Epson Corporation, Tokyo, JP;
Hirotaka Yanagisawa, Azumino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
The lens unit includes a jointed lens having a first optical member, a second optical member disposed on an optical axis of the first optical member, and a jointing member having a light transmissive property and disposed between the first optical member and the second optical member, and an adjustment mechanism holding the first optical member and the second optical member and adjusting a distance between the first optical member and the second optical member along an optical axis direction. The jointing member adheres to the first optical member and the second optical member in a deformable manner. The adjustment mechanism adjusts the distance to change the thickness of the jointing member along the optical axis direction.