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:
Dec. 08, 2020
Filed:
Oct. 22, 2019
Htc Corporation, Taoyuan, TW;
HTC Corporation, Taoyuan, TW;
Abstract
A head mounted display apparatus and an eye-tracking apparatus thereof are provided. The eye-tracking apparatus includes a first wave guide apparatus, a voltage control beam splitter, a first beam splitter, and an image capture apparatus. The voltage control beam splitter provides a first light path between the image capture apparatus, the voltage control beam splitter, and a target zone according to a control signal during a first time period. The voltage control beam splitter provides a second light path between the image capture apparatus, the first wave guide apparatus, the first beam splitter, and the target zone according to the control signal during a second time period. The image capture apparatus respectively captures a first image and a second image of the target zone through the first light path and the second light path.