公开(公告)号：US11949213B2

公开(公告)日：2024-04-02

申请号：US17069731

申请日：2020-10-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Nadav Grossinger ,  Michael Hall ,  Robert Hasbun ,  Jonatan Ginzburg ,  Zihe Gao

IPC: H01S5/42 ,  G01S17/89 ,  G02B27/01 ,  G06T7/521 ,  H04N13/271

CPC classification number: H01S5/423 ,  G01S17/89 ,  G02B27/0172 ,  G06T7/521 ,  H04N13/271

Abstract: A depth camera assembly (DCA) determines depth information for a local area. The DCA includes a camera assembly and at least one illuminator. The DCA may select a subset of the VCSELs to provide illumination at any given time. The illuminator may comprise near-field VCSELs configured to generate a structured light (SL) pattern for depth sensing in the near-field and far-field VCSELs configured to generate a SL pattern for depth sensing in the far-field. The near-field VCSELs may comprise a linear emission region which is shorter than a linear emission region of the far-field VCSELs. The DCA may generate and phase shift a quasi-sinusoidal SL pattern. The DCA may phase shift the quasi-sinusoidal SL pattern by alternating which traces on the illuminator are active.

公开(公告)号：US12140763B1

公开(公告)日：2024-11-12

申请号：US18206856

申请日：2023-06-07

Applicant: Meta Platforms Technologies, LLC

Inventor： Zhaoming Zhu ,  Mark Timothy Sullivan ,  Jonatan Ginzburg

IPC: G02B27/01 ,  G01S17/89 ,  G03B21/20 ,  G06F3/01 ,  G06T7/521 ,  H01S5/183 ,  H04N23/611

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.

公开(公告)号：US11611197B2

公开(公告)日：2023-03-21

申请号：US17347506

申请日：2021-06-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jonatan Ginzburg

IPC: H01S5/00 ,  H01S5/40 ,  H01S5/062 ,  H01S5/42 ,  G01B11/25 ,  G02B27/01 ,  G02C5/00

Abstract: An addressable vertical cavity surface emitting laser (VCSEL) array may generate structured light in dot patterns. The VCSEL array includes a plurality of traces that control different groups of VCSELs, such that each group of VCSELs may be individually controlled. The VCSEL groups are arranged such that they emit a dot pattern, and by modulating which groups of VCSELs are active a density of the dot pattern may be adjusted. The VCSEL array may be part of a depth projector that projects the dot pattern into a local area. A projection assembly may replicate the dot pattern in multiple tiles.

公开(公告)号：US11681209B1

公开(公告)日：2023-06-20

申请号：US17680432

申请日：2022-02-25

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Mark Timothy Sullivan ,  Jonatan Ginzburg

IPC: G03B21/14 ,  G02B27/42 ,  G02B27/09

CPC classification number: G03B21/142 ,  G02B27/0944 ,  G02B27/4233 ,  G03B21/145

Abstract: The disclosed structured light projector may include (1) a light source having a light-emitting side that emits light, (2) a solid optical spacer element having a first side securely coupled to the light-emitting side of the light source, and (3) a diffractive optical element (DOE) stack including one or more DOEs, where the DOE stack includes (a) a light-receiving side securely coupled to a second side of the solid optical spacer element opposite the first side, and (b) a light-emitting side opposite the light-receiving side that emits structured light in response to the light received from the light-emitting side of the light source via the solid optical spacer element. Various other devices and methods are also disclosed.

公开(公告)号：US11709364B1

公开(公告)日：2023-07-25

申请号：US17728560

申请日：2022-04-25

Applicant: Meta Platforms Technologies, LLC

Inventor： Zhaoming Zhu ,  Mark Timothy Sullivan ,  Jonatan Ginzburg

IPC: G06T7/521 ,  G03B21/20 ,  G01S17/89 ,  G06F3/01 ,  G02B27/01 ,  H04N23/611 ,  H01S5/183

CPC classification number: G02B27/0172 ,  G01S17/89 ,  G02B27/0179 ,  G03B21/2033 ,  G06F3/013 ,  G06T7/521 ,  H04N23/611 ,  G02B2027/0178 ,  G06T2207/10028 ,  H01S5/18302

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.

公开(公告)号：US20230216269A1

公开(公告)日：2023-07-06

申请号：US18085089

申请日：2022-12-20

Applicant: Meta Platforms Technologies, LLC

Inventor： Nitay Romano ,  Yaakov Yonatan Layosh ,  Jonatan Ginzburg

IPC: H01S5/02255 ,  H01S5/42 ,  G01B11/22

CPC classification number: H01S5/02255 ,  H01S5/423 ,  G01B11/22

Abstract: Embodiments of the present disclosure relate to a projector that is structured to be incorporated into a small form factor electronic device. In some embodiments, the projector is integrated in a depth camera assembly used for eye tracking and/or determining depth of objects in a local area. The projector includes a vertical cavity surface emitting laser (VCSEL) array and a substrate coupled to the VCSEL array. The VCSEL array is a bottom emitting VCSEL array formed with one or more VCSELs. The substrate includes a plurality of optical features to generate one or more SL patterns from the lights that are emitted from the VCSELs.

公开(公告)号：US20230187908A1

公开(公告)日：2023-06-15

申请号：US18107747

申请日：2023-02-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Jonatan Ginzburg

IPC: H01S5/40 ,  H01S5/062 ,  H01S5/42

CPC classification number: H01S5/4087 ,  H01S5/06233 ,  H01S5/06236 ,  H01S5/0624 ,  H01S5/06243 ,  H01S5/4025 ,  H01S5/4081 ,  H01S5/423 ,  H01S5/005

Abstract: An addressable vertical cavity surface emitting laser (VCSEL) array may generate structured light in dot patterns. The VCSEL array includes a plurality of traces that control different groups of VCSELs, such that each group of VCSELs may be individually controlled. The VCSEL groups are arranged such that they emit a dot pattern, and by modulating which groups of VCSELs are active a density of the dot pattern may be adjusted. The VCSEL array may be part of a depth projector that projects the dot pattern into a local area. A projection assembly may replicate the dot pattern in multiple tiles.