公开(公告)号：US20200183155A1

公开(公告)日：2020-06-11

申请号：US16790137

申请日：2020-02-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenlin XIE ,  Yong CAO ,  Patricia LEICHLITER

IPC: G02B27/00 ,  G02B26/08 ,  G06K9/00

Abstract: An eyeball tracking system is provided, which includes: an illumination light source, configured to transmit an illumination light ray to a beam scanner; the beam scanner, configured to project the illumination light ray onto an entrance pupil optical apparatus; the entrance pupil optical apparatus, configured to reflect, reproduce, or refract the illumination light ray, so that the reflected, reproduced, or refracted illumination light ray illuminates an eyeball; a photoelectric detector, configured to: collect a receive optical power value of an eyeball reflection light ray, and send the receive optical power value to a controller; and the controller, configured to: receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value, and determine a current gaze direction of the eyeball based on the optical power reference value.

公开(公告)号：US20210311303A1

公开(公告)日：2021-10-07

申请号：US17350367

申请日：2021-06-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenlin XIE ,  Yong CAO ,  Patricia LEICHLITER

IPC: G02B27/00 ,  G02B26/08 ,  G06K9/00

Abstract: An eyeball tracking system is provided, which includes: an illumination light source, configured to transmit an illumination light ray to a beam scanner; the beam scanner, configured to project the illumination light ray onto an entrance pupil optical apparatus; the entrance pupil optical apparatus, configured to reflect, reproduce, or refract the illumination light ray, so that the reflected, reproduced, or refracted illumination light ray illuminates an eyeball; a photoelectric detector, configured to: collect a receive optical power value of an eyeball reflection light ray, and send the receive optical power value to a controller; and the controller, configured to: receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value, and determine a current gaze direction of the eyeball based on the optical power reference value.