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公开(公告)号:US20180275409A1
公开(公告)日:2018-09-27
申请号:US15925505
申请日:2018-03-19
Applicant: Magic Leap, Inc.
Inventor: Chunyu Gao , Chulwoo Oh , Michael Anthony Klug , Evyatar Bluzer
IPC: G02B27/01 , H04N13/383 , H04N13/332 , G06T19/00
CPC classification number: G02B27/0172 , G02B6/0076 , G02B27/0093 , G02B27/0179 , G02B2027/0123 , G02B2027/0127 , G02B2027/0134 , G02B2027/0138 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , G06T19/006 , H04N13/332 , H04N13/344 , H04N13/383 , H04N2213/001
Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.
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公开(公告)号:US20240377540A1
公开(公告)日:2024-11-14
申请号:US18772067
申请日:2024-07-12
Applicant: Magic Leap, Inc.
Inventor: David Cohen , Elad Joseph , Eyal Preter , Paul Lacey , Koon Keong Shee , Evyatar Bluzer
IPC: G01S17/894 , G06F3/01 , G06F3/03
Abstract: Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times.
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公开(公告)号:US20240337850A1
公开(公告)日:2024-10-10
申请号:US18748804
申请日:2024-06-20
Applicant: Magic Leap, Inc.
Inventor: Chunyu Gao , Chulwoo Oh , Michael Anthony Klug , Evyatar Bluzer
IPC: G02B27/01 , G02B27/00 , G06T19/00 , H04N13/332 , H04N13/344 , H04N13/383
CPC classification number: G02B27/0172 , G02B27/0093 , G02B27/0179 , G06T19/006 , H04N13/332 , H04N13/344 , H04N13/383 , G02B6/0076 , G02B2027/0123 , G02B2027/0127 , G02B2027/0134 , G02B2027/0138 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , H04N2213/001
Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.
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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
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.
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公开(公告)号:US11754840B2
公开(公告)日:2023-09-12
申请号:US17385554
申请日:2021-07-26
Applicant: Magic Leap, Inc.
Inventor: Chunyu Gao , Chulwoo Oh , Michael Anthony Klug , Evyatar Bluzer
IPC: G02B27/01 , H04N13/383 , H04N13/332 , H04N13/344 , G02B27/00 , F21V8/00 , G06T19/00
CPC classification number: G02B27/0172 , G02B27/0093 , G02B27/0179 , G06T19/006 , H04N13/332 , H04N13/344 , H04N13/383 , G02B6/0076 , G02B2027/0123 , G02B2027/0127 , G02B2027/0134 , G02B2027/0138 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , H04N2213/001
Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.
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公开(公告)号:US20220082833A1
公开(公告)日:2022-03-17
申请号:US17385554
申请日:2021-07-26
Applicant: Magic Leap, Inc.
Inventor: Chunyu Gao , Chulwoo Oh , Michael Anthony Klug , Evyatar Bluzer
IPC: G02B27/01 , H04N13/383 , G06T19/00 , H04N13/332 , H04N13/344 , G02B27/00
Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.
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公开(公告)号:US20210302587A1
公开(公告)日:2021-09-30
申请号:US17210152
申请日:2021-03-23
Applicant: Magic Leap, Inc.
Inventor: David Cohen , Elad Joseph , Eyal Preter , Paul Lacey , Koon Keong Shee , Evyatar Bluzer
IPC: G01S17/894 , G06F3/01 , G06F3/03
Abstract: Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times .
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公开(公告)号:US12055726B2
公开(公告)日:2024-08-06
申请号:US18342451
申请日:2023-06-27
Applicant: Magic Leap, Inc.
Inventor: Chunyu Gao , Chulwoo Oh , Michael Anthony Klug , Evyatar Bluzer
IPC: G02B27/01 , F21V8/00 , G02B27/00 , G06T19/00 , H04N13/332 , H04N13/344 , H04N13/383
CPC classification number: G02B27/0172 , G02B27/0093 , G02B27/0179 , G06T19/006 , H04N13/332 , H04N13/344 , H04N13/383 , G02B6/0076 , G02B2027/0123 , G02B2027/0127 , G02B2027/0134 , G02B2027/0138 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , H04N2213/001
Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.
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公开(公告)号:US10948981B2
公开(公告)日:2021-03-16
申请号:US15805635
申请日:2017-11-07
Applicant: Magic Leap, Inc.
Inventor: Asif Sinay , Barak Freedman , Evyatar Bluzer
Abstract: A method of tracking movement of an eye of a user includes directing a light beam at the eye. The eye may reflect a portion of the light beam. The method further includes detecting a plurality of speckle patterns formed at a detector by the portion of the light beam reflected by the eye. The plurality of speckle patterns may be detected at a predetermined frame rate. The method further includes tracking movement of the eye by tracking the plurality of speckle patterns from frame to frame.
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公开(公告)号:US12066545B2
公开(公告)日:2024-08-20
申请号:US17210152
申请日:2021-03-23
Applicant: Magic Leap, Inc.
Inventor: David Cohen , Elad Joseph , Eyal Preter , Paul Lacey , Koon Keong Shee , Evyatar Bluzer
IPC: G01S17/894 , G06F3/01 , G06F3/03
CPC classification number: G01S17/894 , G06F3/017 , G06F3/0325
Abstract: Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times.
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