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:
Aug. 11, 2020
Filed:
Nov. 13, 2018
Beijing Boe Optoelectronics Technology Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Wenhong Tian, Beijing, CN;
Hao Zhang, Beijing, CN;
Lili Chen, Beijing, CN;
Zhanshan Ma, Beijing, CN;
Zhiyu Sun, Beijing, CN;
Haoran Jing, Beijing, CN;
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A device for adjusting a distance between lens tube assemblies, a head-mounted display device and a step-wise adjustment mechanism are provided. The device for adjusting the distance between the lens tube assemblies includes: a guide shaft configured to mount two lens tube assemblies, with the two lens tube assemblies slidable toward or away from each other; a pair of racks respectively arranged on the two lens tube assemblies; a pair of dial gears, each of which includes a gear portion engaged with the rack and a dial portion configured to drive the gear portion to rotate under an external force; and a pair of dial gear shafts configured to mount the pair of dial gears to a housing of a head-mounted display device where the two lens tube assemblies are located, with the dial gear rotatable relative to the dial gear shaft.