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公开(公告)号：US20210116546A1
公开(公告)日：2021-04-22
申请号：US17088495
申请日：2020-11-03
Applicant: Magic Leap, Inc.
Inventor： David Cohen , Assaf Pelman , Robert D. TeKolste , Shlomo Felzenshtein , Giora Yahav
Abstract: A time of flight based depth detection system is disclosed that includes a projector configured to sequentially emit multiple complementary illumination patterns. A sensor of the depth detection system is configured to capture the light from the illumination patterns reflecting off objects within the sensor's field of view. The data captured by the sensor can be used to filter out erroneous readings caused by light reflecting off multiple surfaces prior to returning to the sensor.
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Patent Agency Ranking
公开(公告)号：US10859676B2
公开(公告)日：2020-12-08
申请号：US15721232
申请日：2017-09-29
Applicant: Magic Leap, Inc.
Inventor： David Cohen , Assaf Pellman , Robert D. TeKolste , Shlomo Felzenshtein , Giora Yahav
Abstract: A time of flight based depth detection system is disclosed that includes a projector configured to sequentially emit multiple complementary illumination patterns. A sensor of the depth detection system is configured to capture the light from the illumination patterns reflecting off objects within the sensor's field of view. The data captured by the sensor can be used to filter out erroneous readings caused by light reflecting off multiple surfaces prior to returning to the sensor.
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公开(公告)号：US10444419B2
公开(公告)日：2019-10-15
申请号：US15683702
申请日：2017-08-22
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Robert D. TeKolste , Victor K. Liu , Christophe Peroz , Pierre St. Hilaire , Evgeni Poliakov , Jason Schaefer , Mauro Melli , Melanie West , Kang Luo , Vikramjit Singh , Frank Y. Xu
IPC: F21V8/00 , G02B5/30 , G02B5/18 , G02B27/00 , G02B27/28 , G02B27/01 , H04N9/31 , G02C11/00 , G02C5/16 , G06F1/16 , G06F1/20 , G09G3/00 , G02B27/10 , H05K7/20 , G06F3/01 , G06F3/147 , G09G3/20 , G02B27/30
Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.
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公开(公告)号：US11635492B2
公开(公告)日：2023-04-25
申请号：US17088495
申请日：2020-11-03
Applicant: Magic Leap, Inc.
Inventor： David Cohen , Assaf Pelman , Robert D. TeKolste , Shlomo Felzenshtein , Giora Yahav
Abstract: A time of flight based depth detection system is disclosed that includes a projector configured to sequentially emit multiple complementary illumination patterns. A sensor of the depth detection system is configured to capture the light from the illumination patterns reflecting off objects within the sensor's field of view. The data captured by the sensor can be used to filter out erroneous readings caused by light reflecting off multiple surfaces prior to returning to the sensor.
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公开(公告)号：US20180095165A1
公开(公告)日：2018-04-05
申请号：US15721232
申请日：2017-09-29
Applicant: Magic Leap, Inc.
Inventor： David Cohen , Assaf Pellman , Robert D. TeKolste , Shlomo Felzenshtein , Giora Yahav
Abstract: A time of flight based depth detection system is disclosed that includes a projector configured to sequentially emit multiple complementary illumination patterns. A sensor of the depth detection system is configured to capture the light from the illumination patterns reflecting off objects within the sensor's field of view. The data captured by the sensor can be used to filter out erroneous readings caused by light reflecting off multiple surfaces prior to returning to the sensor.
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公开(公告)号：US20180059304A1
公开(公告)日：2018-03-01
申请号：US15683702
申请日：2017-08-22
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Robert D. TeKolste , Victor K. Liu , Christophe Peroz , Pierre St. Hilaire , Evgeni Poliakov , Jason Schaefer , Mauro Melli , Melanie West , Kang Luo , Vikramjit Singh , Frank Y. Xu
Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.
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