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.

公开(公告)号：US20210157151A1

公开(公告)日：2021-05-27

申请号：US17166358

申请日：2021-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenlin XIE ,  Qi WANG

IPC: G02B27/01 ,  H04N9/31 ,  G02B27/00

Abstract: A multi-focal plane display system and a device are provided. The multi-focal plane display system includes a laser projection optical engine and a holographic reflection light fusion device. The laser projection optical engine is configured to generate and modulate at least two laser beam groups, and transmit the at least two laser beam groups to the holographic reflective optical fusion device, where each laser beam group corresponds to one displayed image. The holographic reflective optical fusion device is configured to reflect the at least two laser beam groups, where exit pupil locations of the at least two laser beam groups are the same, and displayed images of at least two focal planes are obtained by performing imaging on the at least two laser beam groups by a human eye. A structure of the multi-focus plane display system provided in the embodiments is easy to implement.

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：US20190265461A1

公开(公告)日：2019-08-29

申请号：US16408098

申请日：2019-05-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenlin XIE ,  Zhenkai QIN ,  Kun RAN

IPC: G02B26/08 ,  G02B7/182 ,  H04N5/225

Abstract: A camera module is disclosed. The camera module includes a rotatable reflector, a lens group, a housing, and an image sensor. The housing includes a first surface and a second surface. A first mirror surface of the rotatable reflector is a reflective surface, and a part of the first mirror surface located in a first reflective area is a first sub mirror surface. When the rotatable reflector is located at a first position, the first mirror surface reflects a first optical signal. An image is generated after the reflected first optical signal is transmitted along a straight line along which an optical axis lies. When the rotatable reflector is located at a second position, the first mirror surface reflects a second optical signal. An image is generated after the reflected second optical signal is transmitted along the straight line along which the optical axis lies.