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. 03, 2019
Filed:
Jun. 21, 2018
Fujifilm Corporation, Tokyo, JP;
Hiroshi Kuboya, Saitama, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A projection lens unit () of a projector () is disposed in a state in which an optical axis (CL) of the projection lens unit deviates from a center of an image forming panel (); a first lens holder () of a lens barrel () includes holding pieces () that are provided at intervals in a circumferential direction of a first lens group (L) and are engaged with a first portion (A) of the first lens group positioned on a side to which the image forming panel is shifted, and a holding piece () that is engaged with a second portion (A) of the first lens group positioned on a side opposite to the side to which the image forming panel is shifted; and the linear expansion coefficient of each of the holding pieces is lower than the linear expansion coefficient of the holding piece.