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. 29, 2020
Filed:
Oct. 19, 2017
Apple Inc., Cupertino, CA (US);
Kathrin Berkner-Cieslicki, Los Altos, CA (US);
Ricardo J. Motta, Palo Alto, CA (US);
Se Hoon Lim, San Jose, CA (US);
Minwoong Kim, San Jose, CA (US);
Kenichi Saito, Cupertino, CA (US);
Branko Petljanski, San Jose, CA (US);
Jason C. Sauers, Sunnyvale, CA (US);
Yoshikazu Shinohara, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An eye tracking system for detecting position and movements of a user's eyes in a head-mounted display (HMD). The eye tracking system may include at least one near-IR (NIR) eye tracking camera positioned at each side of the user's face and pointed towards eye-facing surfaces of eyepieces of the HMD, an illumination source that emits NIR light towards the user's eyes, and hot mirrors located between the eye-facing surfaces of the eyepieces and the user's eyes. The hot mirrors reflect at least a portion of NIR light, while allowing visible light to pass. The cameras capture images of the user's eyes reflected by the hot mirrors. Positioning the hot mirrors at or near the eye-facing surfaces of the eyepieces allows the cameras to be placed at the sides of the user's face without having to image through the eyepieces.