公开(公告)号：US20230333371A1

公开(公告)日：2023-10-19

申请号：US18105709

申请日：2023-02-03

Applicant: Apple Inc.

Inventor： Tong Chen ,  Mark T. Winkler ,  Edward Vail ,  Xibin Zhou ,  Ahmet Fatih Cihan ,  Walter Nistico

IPC: G02B27/00 ,  G02B27/01

CPC classification number: G02B27/0093 ,  G02B27/0172 ,  G02B2027/0138

Abstract: An eye tracking device includes a head-mountable frame, an optical sensor subsystem mounted to the head-mountable frame, and a processor. The optical sensor subsystem includes a set of one or more SMI sensors. The processor is configured to operate the optical sensor subsystem to cause the set of one or more SMI sensors to emit a set of one or more beams of light toward an eye of a user; to receive a set of one or more SMI signals from the set of one or more SMI sensors; and to track a movement of the eye using the set of one or more SMI signals.

公开(公告)号：US20230089141A1

公开(公告)日：2023-03-23

申请号：US17480704

申请日：2021-09-21

Applicant: Apple Inc.

Inventor： Tong Chen ,  Ahmet Fatih Cihan ,  Edward Vail ,  Weiping Li ,  Xiaolong Fang ,  Xibin Zhou ,  Pengfei Qiao

IPC: H01S5/026 ,  H01S5/42 ,  H01S5/14 ,  H01S5/0687 ,  H01S3/105 ,  H01S5/183

Abstract: Self-mixing interferometry (SMI) sensors may include vertical cavity surface emitting lasers (VCSEL), photodetectors, and microelectromechanical systems (MEMS). The VCSEL, photodetectors, and MEMS may be vertically stacked. The MEMS may be moveable with respect to a VCSEL and may change a cavity length associated with the VCSEL. By changing the cavity length associated with the VCSEL, certain properties of emitted light may be changed, such as a wavelength value of the emitted light.