公开(公告)号：US10732427B2

公开(公告)日：2020-08-04

申请号：US15818668

申请日：2017-11-20

Applicant: Microsoft Technology Licensing, LLC

Inventor： Richard Andrew Wall ,  Joseph Daniel Lowney ,  Dmitry Reshidko ,  Ian Anh Nguyen

IPC: G02B27/42 ,  G02B26/08 ,  G02B27/01 ,  G02B27/00 ,  G02B5/18 ,  F21V8/00 ,  G06F3/01 ,  G06K9/00 ,  G06T7/00

Abstract: An eye-tracking system includes an at least partially transparent visible light waveguide having a visible light display region configured to emit visible light to an eye of a user. A light source is configured to emit at least infrared (IR) light that travels along an IR light path to the eye of the user. A microelectromechanical system (MEMS) projector positioned in the IR light path directs the IR light. At least one diffractive input coupler on an input end of the IR light path downstream of the MEMS projector diffracts at least a portion of the IR light. At least one diffractive output coupler positioned in the IR light path downstream of the diffractive input coupler receives the IR light and directs the IR light toward the eye. At least one sensor is configured to receive the IR light after being reflected by the eye.

公开(公告)号：US10976811B2

公开(公告)日：2021-04-13

申请号：US15675349

申请日：2017-08-11

Applicant: Microsoft Technology Licensing, LLC

Inventor： Nicholas Mark Cirucci ,  Joseph Daniel Lowney ,  Richard Andrew Wall ,  Dmitry Reshidko ,  Ian Anh Nguyen

IPC: G06F3/01 ,  G02B26/08 ,  G02B27/01 ,  G02B27/00 ,  G02B5/08 ,  H04N5/225 ,  H04N5/33 ,  H04N5/341

Abstract: An eye-tracking system is provided. The system includes an at least partially transparent visible light waveguide having a visible light display region configured to emit visible light to impinge upon an eye of a user. A light source is configured to emit at least infrared (IR) light that travels along an IR light path to impinge on the eye. A microelectromechanical system (MEMS) scanning mirror positioned in the IR light path is configured to direct the IR light along the IR light path. A relay positioned in the IR light path downstream of the MEMS scanning mirror includes at least one mirror configured to reflect the IR light along the IR light path. At least one sensor is configured to receive the IR light after being reflected by the eye.

公开(公告)号：US10394034B2

公开(公告)日：2019-08-27

申请号：US15677999

申请日：2017-08-15

Applicant: Microsoft Technology Licensing, LLC

Inventor： Dmitry Reshidko ,  Ian Anh Nguyen ,  Richard Andrew Wall

IPC: G02B27/01 ,  G06K9/00 ,  G06F3/01 ,  G02B26/08 ,  G02B26/10 ,  G02B27/12 ,  G02B5/04 ,  G02B27/00

Abstract: An eye-tracking system is provided that includes a light source configured to emit at least infrared (IR) light and a microelectromechanical system (MEMS) scanning mirror configured to direct the IR light. The system further includes a relay including at least one prism, and the relay is configured to receive the IR light directed by the MEMS scanning mirror and redirect the IR light. The system further includes a waveguide through which the IR light redirected by the relay passes to reach an eye, and at least one sensor configured to receive the IR light after being reflected by the eye.