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. 19, 2025
Filed:
Nov. 11, 2022
Htc Corporation, Taoyuan, TW;
Chih-Hsiang Hsieh, Taoyuan, TW;
HTC Corporation, Taoyuan, TW;
Abstract
A head-mounted display device and an adjustment module are provided. The head-mounted display device includes a body and two adjustment modules. The two adjustment modules are configured to be assembled to two zoom lens groups of the body. Each of the adjustment modules includes a base, a sliding block, a first shape memory alloy (SMA) element, a first recovery element, a braking element, a second SMA element, and a second recovery element. The first SMA element is connected between the base and an actuating end of the sliding block and is configured to actuate the sliding block so that a transmission end of the sliding block drives the zoom lens group to zoom. The first recovery element is connected between the base and the actuating end and is configured to keep the sliding block at an original position when the first SMA element is in a power-off state. The braking element is engaged with a braking end of the sliding block when the braking element is in a braking position. The braking element is separated from the braking end when the braking element is in a movable position. The second SMA element is connected between the base and the braking element and is configured to actuate the braking element to move between the braking position and the movable position. The second recovery element is connected between the base and the braking element and is configured to keep the braking element at the braking position or the movable position when the second SMA element is in the power-off state.