公开(公告)号：US11540033B2

公开(公告)日：2022-12-27

申请号：US17243347

申请日：2021-04-28

Applicant: Meta Platforms Technologies, LLC

Inventor： Maik Andre Scheller ,  Jonathan Robert Peterson ,  Morteza Khaleghimeybodi

IPC: H04R1/02 ,  H04R17/00 ,  H05K5/00

Abstract: A transducer is described that includes a substrate configured to be deposited on a solid object, and a transparent medium coupled to the substrate and configured to oscillate at a pre-selected frequency upon receipt of an electrical excitation or a mechanical excitation and to provide a first acoustic wave. The transducer also includes an actuator configured to receive an electrical power, and to provide the electrical excitation or the mechanical excitation to the transparent medium, wherein at least a portion of the solid object is viewable through the transparent medium, and the first acoustic wave is at least partially transmitted through an interface of the transparent medium. A system and a non-transitory, computer-readable medium storing instructions to cause the system to perform a method to use the transducer for generating acoustic waves in a transparent medium are also disclosed.

公开(公告)号：US11536555B2

公开(公告)日：2022-12-27

申请号：US17167005

申请日：2021-02-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Maik Andre Scheller ,  Liliana Ruiz Diaz ,  Marc Aurele Gilles ,  Andrew John Ouderkirk ,  Robert Dale Cavin

IPC: G01B9/02 ,  G02B27/01 ,  G01B11/22 ,  G01B9/02097 ,  G01B9/02017

Abstract: Self-mixed interferometer (SMI) devices and techniques are described for measuring depth and/or velocity of objects. The SMI devices and techniques may be used for eye-tracking. A light source of an SMI sensor emits coherent light that is directed to a target location with a scanning module. One or more SMI signals are measured. The one or more SMI signals are generated by the SMI sensor in response to feedback light received from the target location. The feedback light is a portion of the coherent light that illuminated the target location.

公开(公告)号：US11431236B2

公开(公告)日：2022-08-30

申请号：US16996588

申请日：2020-08-18

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Maik Andre Scheller ,  Christopher Yuan Ting Liao ,  Jonathan Robert Peterson ,  Andrew John Ouderkirk

IPC: H02M1/00 ,  H01S3/106 ,  H03F3/08 ,  G02B19/00

Abstract: An optical transformer includes a plurality of light emitters, a plurality of photovoltaic cells positioned to receive light from at least a first subset of the plurality of light emitters, the plurality of photovoltaic cells including at least a first photovoltaic cell and a second photovoltaic cell, and one or more optically triggered switches positioned to receive light from at least a second subset of the plurality of light emitters, the one or more optically triggered switches including at least a first optically triggered switch electrically coupled to the first photovoltaic cell and the second photovoltaic cell. A method of operating the optical transformer is also described.

公开(公告)号：US11862932B2

公开(公告)日：2024-01-02

申请号：US17124319

申请日：2020-12-16

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Gareth Valentine ,  Maik Andre Scheller ,  James Ronald Bonar

IPC: H01S3/10 ,  H01S5/026 ,  H01S5/00 ,  H01S5/40 ,  H01S5/10 ,  H01S5/062 ,  G02B27/01 ,  G02F1/35 ,  H01S3/109 ,  H04N9/31 ,  H01S5/183

CPC classification number: H01S5/0268 ,  H01S5/0092 ,  H01S5/06206 ,  H01S5/1092 ,  H01S5/4087 ,  G02B27/0172 ,  G02B2027/0178 ,  G02F1/3532 ,  H01S3/109 ,  H01S5/18397 ,  H04N9/3161 ,  H04N9/3164

Abstract: A light source based on an optical frequency mixer is disclosed. The light source has a first laser for emitting light at a first optical frequency, and a plurality of second lasers for emitting light at different second optical frequencies. The optical frequency mixer provides output light beams at mixed optical frequencies of the first and second lasers. Wavelength of output light beams may be tuned by tuning wavelength of any of the first or second lasers. In this manner, RGB wavelength-tunable light sources may be constructed based on red or near-infrared lasers. The wavelength tunability of the output light beams may be used to angularly scan or refocus the light beams.

公开(公告)号：US11810908B2

公开(公告)日：2023-11-07

申请号：US17326777

申请日：2021-05-21

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Christopher Yuan Ting Liao ,  Maik Andre Scheller ,  Jonathan Robert Peterson ,  Ehsan Vadiee ,  John Goward ,  Anurag Tyagi ,  Andrew John Ouderkirk

IPC: H01L25/16 ,  H01L31/02 ,  H01L31/0224 ,  H01L31/04 ,  H01L31/18

CPC classification number: H01L25/167 ,  H01L31/02021 ,  H01L31/022425 ,  H01L31/04 ,  H01L31/18

Abstract: A method of forming a high voltage optical transformer includes forming a via through a transparent carrier wafer, forming a conductive layer within the via, bonding a solid state lighting (SSL) package to a first side of the carrier wafer, and bonding a photovoltaic (PV) wafer to a second side of the carrier wafer opposite to the first side. The photovoltaic wafer may include an active area and a conductive area located outside of the active area that is in electrical contact with the conductive layer. The method further includes forming both an SSL contact with the solid state lighting package and a PV contact with the conductive layer on the same side of the carrier wafer.

公开(公告)号：US11803024B2

公开(公告)日：2023-10-31

申请号：US17374932

申请日：2021-07-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jonathan Robert Peterson ,  John Goward ,  Maik Andre Scheller ,  Andrew John Ouderkirk ,  Christopher Yuan Ting Liao ,  Giuseppe Calafiore ,  Alexander Koshelev

IPC: G02B6/42 ,  G02B26/08 ,  G02B5/30 ,  G06F3/01

CPC classification number: G02B6/4298 ,  G02B5/3025 ,  G02B26/0833 ,  G06F3/014 ,  G06F3/016

Abstract: A device includes a light source to emit light and a light detector to receive the light emitted by the light source. The device may include a high voltage optical transformer and may be configured such that the light detector is laterally spaced away from the light source. In some architectures, the light source and the light detector may be arranged in a common plane. A photonic integrated circuit may be used to couple light emitted from the light source to the light detector.

公开(公告)号：US11649935B2

公开(公告)日：2023-05-16

申请号：US17877715

申请日：2022-07-29

Applicant: Meta Platforms Technologies, LLC

Inventor： Guohua Wei ,  Maik Andre Scheller ,  Karol Constantine Hatzilias ,  Christopher Yuan-Ting Liao ,  Qi Zhang ,  Joseph S. Corry

IPC: F21K9/61 ,  F21K9/69 ,  G02B1/118 ,  F21V8/00

CPC classification number: F21K9/61 ,  F21K9/69 ,  G02B1/118 ,  G02B6/005 ,  G02B6/0058 ,  G02B6/0065

Abstract: A device includes a light source, a waveguide layer, and a light director layer. The light source emits illumination light. The waveguide layer includes a cladding layer and an optical waveguide. The cladding layer provides a top planar surface of the waveguide layer and the optical waveguide is immersed in the cladding layer and includes a light input coupler. The light director layer includes a bottom planar surface that is disposed on the top planar surface of the waveguide layer. The light director layer also includes a light director that receives and directs the illumination light to the light input coupler as shaped light. The light director is configured to tilt the illumination light to give the shaped light a tilt angle with respect to the light input coupler.

公开(公告)号：US20220350100A1

公开(公告)日：2022-11-03

申请号：US17374932

申请日：2021-07-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jonathan Robert Peterson ,  John Goward ,  Maik Andre Scheller ,  Andrew John Ouderkirk ,  Christopher Yuan Ting Liao ,  Giuseppe Calafiore ,  Alexander Koshelev

IPC: G02B6/42 ,  G02B26/08 ,  G02B5/30

Abstract: A device includes a light source to emit light and a light detector to receive the light emitted by the light source. The device may include a high voltage optical transformer and may be configured such that the light detector is laterally spaced away from the light source. In some architectures, the light source and the light detector may be arranged in a common plane. A photonic integrated circuit may be used to couple light emitted from the light source to the light detector.

公开(公告)号：US11435037B2

公开(公告)日：2022-09-06

申请号：US17007308

申请日：2020-08-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Guohua Wei ,  Maik Andre Scheller ,  Karol Constantine Hatzilias ,  Christopher Yuan-Ting Liao ,  Qi Zhang ,  Joseph S. Corry

IPC: F21K9/61 ,  F21K9/69 ,  G02B1/118 ,  F21V8/00

Abstract: A device or system includes a light source, an optical waveguide, and a light director. The light source emits illumination light. The optical waveguide includes a light input coupler. The light director receive the illumination light and generates shaped light. The light director adjusts the tilt angle and/or the divergence angle of the illumination light.

公开(公告)号：US11757369B1

公开(公告)日：2023-09-12

申请号：US16775607

申请日：2020-01-29

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Maik Andre Scheller ,  Jonathan Robert Peterson ,  Andrew John Ouderkirk

IPC: H02M7/06 ,  H02M7/00

CPC classification number: H02M7/06 ,  H02M7/003

Abstract: A step-down optical AC/DC transformer may include (1) an array of light-emitting devices that are disposed to be electrically coupled to an alternating current (AC) power source are connected in series with one another and (2) an array of photovoltaic cells that are optically coupled to the array of light-emitting devices and produce a direct current (DC) electrical output. Various other apparatuses, systems, and methods are also disclosed.