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公开(公告)号：US10586342B2
公开(公告)日：2020-03-10
申请号：US15693297
申请日：2017-08-31
Applicant: Facebook Technologies, LLC
Inventor： Andrew Matthew Bardagjy , Joseph Duggan , Cina Hazegh , Fei Liu , Mark Timothy Sullivan , Simon Morris Shand Weiss
Abstract: A depth camera assembly for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates a local area with structured light and includes an illumination source, a mounting element, and a diffractive optical element (DOE) mounted on the mounting element. The mounting element can have a plurality of adjustable positions relative to the illumination source based on emission instructions from the controller. The DOE generates, using light emitted from the illumination source, diffracted scanning beams that are projected as the structured light into the local area. A pattern of the structured light is dynamically adjustable and unique for each adjustable position of the mounting element. The imaging device captures image(s) of the structured light reflected from object(s) in the local area. The controller determines depth information for the object(s) based in part on the captured image(s).
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公开(公告)号：US20190049720A1
公开(公告)日：2019-02-14
申请号：US15676717
申请日：2017-08-14
Applicant: Facebook Technologies, LLC
Inventor： Andrew Matthew Bardagjy , Joseph Duggan , Cina Hazegh , Fei Liu , Mark Timothy Sullivan , Simon Morris Shand Weiss
Abstract: A depth camera assembly (DCA) for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates the local area with a structured light pattern. The structured light generator includes a programmable diffractive optical element (PDOE) that generates diffracted scanning beams using optical beams. The PDOE functions as a dynamic diffraction grating that dynamically adjusts diffraction of the optical beams to generate the diffracted scanning beams of different patterns. The diffracted scanning beams are projected as the structured light pattern into the local area, wherein the structured light pattern is dynamically adjustable based on the PDOE. The imaging device captures image(s) of at least a portion of the structured light pattern reflected from object(s) in the local area. The controller determines depth information for the object(s) based on the captured image(s).
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公开(公告)号：US11353636B2
公开(公告)日：2022-06-07
申请号：US16752473
申请日：2020-01-24
Applicant: Facebook Technologies, LLC
Inventor： Mark Timothy Sullivan , Yaakov Yonatan Layosh , Danilo Bueno
Abstract: A mount includes an active area in which an optical element may be located. The mount is bonded to a neighboring mount using adhesives that are placed on a top side of a wall structure of the mount. Migration of the adhesives from the wall of the mount into the active area is prevented by use of groove-structures and micro-wall structures located in a buffer area of the mount that circumscribes the active area. In some embodiments, a diffuser is located in the buffer area of the mount to redirect the emitted light as desired for a particular application.
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公开(公告)号：US10209202B1
公开(公告)日：2019-02-19
申请号：US15623162
申请日：2017-06-14
Applicant: Facebook Technologies, LLC
Inventor： Mark Timothy Sullivan , Andrew Matthew Bardagjy , Joseph Duggan , Fei Liu , Simon Morris Shand Weiss
Abstract: An optical characterization system includes a camera assembly and a workstation. The camera assembly is configured to capture images of different portions of a structured light pattern emitted from a device under test in accordance with imaging instructions. In some embodiments, the device under test may be a diffractive optical element (DOE). The workstation provides the imaging instructions to the camera assembly, and stitch the captured images together to form a pattern image. The pattern image is a single image of the entire structured light pattern. The workstation also characterizes performance of the device under test using the pattern image and a performance metric.
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公开(公告)号：US11355901B1
公开(公告)日：2022-06-07
申请号：US16725365
申请日：2019-12-23
Applicant: Facebook Technologies, LLC
Inventor： Jonatan Ginzburg , Mark Timothy Sullivan
IPC: H01S5/183 , H01S5/0235 , H01S5/024 , H01S5/023 , H01S5/0233 , H01S5/40
Abstract: A vertical cavity surface emitting laser (VCSEL) die package includes a bottom substrate comprising a bottom contact pad electrically contacting a bottom electrode on a bottom surface of a VCSEL die. The VCSEL die package includes a submount including a submount contact pad electrically contacting a first electrode on another surface of the VCSEL die. The submount contact pad overlaps a portion of the first electrode, wherein the VCSEL die is positioned between the submount and the bottom substrate.
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Patent Agency Ranking
公开(公告)号：US11340456B1
公开(公告)日：2022-05-24
申请号：US16521419
申请日：2019-07-24
Applicant: Facebook Technologies, LLC
Inventor： Zhaoming Zhu , Mark Timothy Sullivan , Jonatan Ginzburg
Abstract: A projector for illuminating a target area is presented. The projector includes an array of emitters positioned on a substrate according to a distribution. Each emitter in the array of emitters has a non-circular emission area. Operation of at least a portion of the array of emitters is controlled based in part on emission instructions to emit light. The light from the projector is configured to illuminate the target area. The projector can be part of a depth camera assembly for depth sensing of a local area, or part of an eye tracker for determining a gaze direction for an eye.
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公开(公告)号：US20200151892A1
公开(公告)日：2020-05-14
申请号：US16743685
申请日：2020-01-15
Applicant: Facebook Technologies, LLC
Inventor： Andrew Matthew Bardagjy , Joseph Duggan , Cina Hazegh , Fei Liu , Mark Timothy Sullivan , Simon Morris Shand Weiss
Abstract: A depth camera assembly for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates a local area with structured light and includes an illumination source, a mounting element, and a diffractive optical element (DOE) mounted on the mounting element. The mounting element can have a plurality of adjustable positions relative to the illumination source based on emission instructions from the controller. The DOE generates, using light emitted from the illumination source, diffracted scanning beams that are projected as the structured light into the local area. A pattern of the structured light is dynamically adjustable and unique for each adjustable position of the mounting element. The imaging device captures image(s) of the structured light reflected from object(s) in the local area. The controller determines depth information for the object(s) based in part on the captured image(s).
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公开(公告)号：US20200150419A1
公开(公告)日：2020-05-14
申请号：US16725185
申请日：2019-12-23
Applicant: Facebook Technologies, LLC
Inventor： Andrew Matthew Bardagjy , Joseph Duggan , Cina Hazegh , Fei Liu , Mark Timothy Sullivan , Simon Morris Shand Weiss
IPC: G02B26/10 , G02B27/42 , G02B27/30 , G03B15/06 , G02F1/29 , G02B26/08 , G01B11/25 , G03B21/00 , G03B17/54
Abstract: A depth camera assembly (DCA) for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates the local area with a structured light pattern. The structured light generator includes a programmable diffractive optical element (PDOE) that generates diffracted scanning beams using optical beams. The PDOE functions as a dynamic diffraction grating that dynamically adjusts diffraction of the optical beams to generate the diffracted scanning beams of different patterns. The diffracted scanning beams are projected as the structured light pattern into the local area, wherein the structured light pattern is dynamically adjustable based on the PDOE. The imaging device captures image(s) of at least a portion of the structured light pattern reflected from object(s) in the local area. The controller determines depth information for the object(s) based on the captured image(s).
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公开(公告)号：US11333895B1
公开(公告)日：2022-05-17
申请号：US16406377
申请日：2019-05-08
Applicant: Facebook Technologies, LLC
Inventor： Jonatan Ginzburg , Mark Timothy Sullivan , Benjamin Nicholas Jones
Abstract: The disclosed system may include (1) a diffractive optical element (DOE) stack including one or more DOEs, where the DOE stack generates, in response to incoming light received at a first side of the DOE stack, structured light from a second side of the DOE stack opposite the first side, (2) a primary light source that emits the incoming light toward the first side of the DOE stack, and (3) at least one photodetector that detects light emitted from an edge of each of at least one of the DOEs of the DOE stack, where the edge is located between the first side and the second side of the DOE stack. Various other methods and systems are also disclosed.
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公开(公告)号：US10948283B1
公开(公告)日：2021-03-16
申请号：US16808190
申请日：2020-03-03
Applicant: Facebook Technologies, LLC
Inventor： Mark Timothy Sullivan , Andrew Matthew Bardagjy , Joseph Duggan , Fei Liu , Simon Morris Shand Weiss
Abstract: A head-mounted display (HMD) system includes a projector system configured to emit a structured light (SL) pattern onto one or more objects in a local area, the projected SL pattern comprises at least a first SL pattern having a first field of view (FOV) corresponding to a first tileable boundary, and a second SL pattern having a second FOV corresponding to a second tileable boundary. Each of the projected SL patterns contains fiducials at predetermined locations within the SL pattern. An imaging device captures images of the local area including at least portions of the first SL pattern or the second SL patterns. The detected locations of the fiducials in the captured images is used to determine the boundary locations of the first and second SL patterns. Depth information of the local area is generated based upon the determined locations of the first and second SL patterns.
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