公开(公告)号：US20210232221A1

公开(公告)日：2021-07-29

申请号：US17168006

申请日：2021-02-04

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Barak Freedman ,  Evyatar Bluzer

IPC: G06F3/01 ,  G02B27/00 ,  H04N5/232 ,  G06T7/262 ,  G06T7/32 ,  G01N21/47 ,  G02B27/01 ,  G06T7/20

Abstract: A method of tracking an eye gaze include obtaining a pre-calibrated speckle map of the eye of the user, determining a starting position of the eye using the pre-calibrated speckle map, and tracking movement of the eye relative to the starting position by: directing a light beam at the eye, detecting a plurality of speckle patterns formed at a detector by a portion of the light beam reflected by the eye, and tracking movement of the eye relative to the starting position by tracking the plurality of speckle patterns from frame to frame.

公开(公告)号：US11237631B2

公开(公告)日：2022-02-01

申请号：US17168006

申请日：2021-02-04

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Barak Freedman ,  Evyatar Bluzer

IPC: G06T7/20 ,  G02B27/48 ,  H04N5/232 ,  G06F3/01 ,  G02B27/00 ,  G06T7/262 ,  G06T7/32 ,  G01N21/47 ,  G02B27/01

Abstract: A method of tracking an eye gaze include obtaining a pre-calibrated speckle map of the eye of the user, determining a starting position of the eye using the pre-calibrated speckle map, and tracking movement of the eye relative to the starting position by: directing a light beam at the eye, detecting a plurality of speckle patterns formed at a detector by a portion of the light beam reflected by the eye, and tracking movement of the eye relative to the starting position by tracking the plurality of speckle patterns from frame to frame.

公开(公告)号：US20220011578A1

公开(公告)日：2022-01-13

申请号：US17279428

申请日：2019-09-25

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Nizan Meitav ,  Chulwoo Oh ,  Barak Freedman ,  Michael Anthony Klug ,  Adam C. Carlson

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/42

Abstract: A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into said waveguide and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within said waveguide out of said waveguide and direct said light to said camera. The at least one coupling element may comprise a diffractive optical element having optical power. Additionally or alternatively, the at least one coupling optical element may have a coupling area for coupling light into said waveguide having an average thickness in a range from 0.1 to 3 millimeters across and/or may have a slit shaped coupling area.

公开(公告)号：US10649523B2

公开(公告)日：2020-05-12

申请号：US15960497

申请日：2018-04-23

Applicant: MAGIC LEAP, INC.

Inventor： Asif Sinay ,  Barak Freedman

IPC: G06F3/01 ,  G06T3/20 ,  G02B27/01 ,  G06T7/246

Abstract: Augmented reality headgear includes transparent displays that allow a user to simultaneously view the real world and virtual content positioned in the real world and further includes at least one source of coherent light and at least one sensor array for sensing, at a series of times, speckle patterns produced when the coherent light impinges environment surfaces. Circuitry is provided for sensing shifts in the speckle pattern and determining motion which caused the shift of the speckle pattern and adjusting the display of virtual objects displayed by the augmented reality headgear to compensate for the motion.

公开(公告)号：US20190086674A1

公开(公告)日：2019-03-21

申请号：US16138228

申请日：2018-09-21

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Barak Freedman ,  Michael Anthony Klug ,  Chulwoo Oh ,  Nizan Meitav

IPC: G02B27/01 ,  G02B27/00 ,  G06T19/00 ,  G02B27/28

Abstract: A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into said waveguide and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within said waveguide out of said waveguide and direct said light to said camera. The camera can be disposed in an optical path with respect to said at least one out-coupling optical element to receive at least a portion of the light that is coupled into said waveguide via the coupling element and guided therein and that is coupled out from said waveguide by said out-coupling coupling element such that images may be captured by said camera.