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:
Oct. 12, 2021
Filed:
Mar. 28, 2018
Beijing 7invensun Technology Co., Ltd., Beijing, CN;
Jinxing Liu, Beijing, CN;
Tongbing Huang, Beijing, CN;
BEIJING 7INVENSUN TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
An eye tracking device and a head-mounted display device are provided. The eye tracking device includes at least one infrared camera, at least one infrared light, group and a control circuit. The control circuit is electrically connected with the at least one infrared light group. Each of the at least one infrared light group includes at least two infrared lights which are arranged at different locations. Each of the at least one infrared camera is configured to collect an eye image of a user when the at least two infrared lights are turned on. The control circuit is configured to respectively control the number of infrared lights achieving effective operating brightness in each infrared light group when the eye tracking device performs iris recognition and eye tracking, and the effective operating brightness refers that a brightness is not less than a threshold brightness.