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. 26, 2021
Filed:
Sep. 26, 2019
Qisda Corporation, Taoyuan, TW;
Chin-Kuei Lee, Taoyuan, TW;
Qisda Corporation, Taoyuan, TW;
Abstract
According to one embodiment, an image projection device is provided. The image projection device includes an opto-mechanical module, a projection lens, and a lens adjusting mechanism. The opto-mechanical module is used for generating an image light. The projection lens is located on the path of the image light. The lens adjusting mechanism includes an outer ring rotating member, a transmission strip, a first fastener, and a driving mechanism. The outer ring rotating member is disposed on the projection lens, and the outer ring rotating member is used to drive the projection lens to rotate along an axis. The transmission strip surrounds the outer ring rotating member on the projection lens. The first fastener is fixedly connected to the transmission strip and the outer ring rotating member. The driving mechanism is connected to the transmission strip to drive the transmission strip and the outer ring rotating member to rotate.