公开(公告)号：US12055636B2

公开(公告)日：2024-08-06

申请号：US18308271

申请日：2023-04-27

Applicant: AEVA, INC.

Inventor： Cameron Howard ,  Sawyer Isaac Cohen ,  Keith Gagne ,  Bradley Scot Levin ,  Pierre Hicks

IPC: G01S17/00 ,  G01S7/481 ,  G01S17/32 ,  G01S17/89

CPC classification number: G01S17/89 ,  G01S7/4817 ,  G01S17/32

Abstract: A system and method receive a first beam pattern from an optical source that includes optical beams transmitted towards a target. The system and method measure a first vertical angle between at least two of the optical beams along a first axis relative to the FMCW LIDAR system. The system and method calculate a second beam pattern based on the first vertical angle and a pivot point. The second beam pattern produces a second vertical angle between the two optical beams. The system and method adjust one or more components from a first position that forms the first beam pattern to a second position that forms the second beam pattern for transmission towards the target. The system and method receive one or more return optical beams from the target, based on the second beam pattern, to produce a plurality of points to form the point cloud.

公开(公告)号：US20240255641A1

公开(公告)日：2024-08-01

申请号：US18104006

申请日：2023-01-31

Applicant: Aeva, Inc.

Inventor： Cameron Howard ,  Keith Gagne ,  Bradley Scot Levin

IPC: G01S17/34 ,  G01S7/481 ,  G02B26/10 ,  G02B26/12

CPC classification number: G01S17/34 ,  G01S7/4817 ,  G02B26/105 ,  G02B26/123 ,  G01S17/931

Abstract: A system including a multi-sided scanner including a plurality of sides, and optical source to transmit, at a first angle, an optical beam towards a first side of the plurality of sides to produce a first adjusted beam transmitted within the multi-sided scanner towards a second side of the plurality of sides to produce a second adjusted beam. A trajectory of the second adjusted beam traverses a third side of the plurality of sides to exit the multi-sided scanner to produce a first FOV portion. The optical source is to transmit, at the second angle, the optical beam towards the first side to produce a third adjusted beam transmitted within the multi-sided scanner towards the second side to produce a fourth adjusted beam. A trajectory of the fourth adjusted beam traverses the third side of the plurality of sides to exit the multi-sided scanner to produce a second FOV portion.

公开(公告)号：US20240019553A1

公开(公告)日：2024-01-18

申请号：US18364994

申请日：2023-08-03

Applicant: Aeva, Inc.

Inventor： Behsan Behzadi ,  Omer P. Kocaoglu ,  Keith Gagne ,  Oguzhan Avci ,  Neal N. Oza ,  Mina Rezk

IPC: G01S7/481 ,  G01S17/34 ,  G01S7/4913 ,  G01S17/58 ,  G01S17/89 ,  G02B27/28 ,  G02B27/30

CPC classification number: G01S7/4817 ,  G01S17/34 ,  G01S7/4811 ,  G01S7/4913 ,  G01S17/58 ,  G01S17/89 ,  G02B27/283 ,  G02B27/30

Abstract: A light detection and ranging (LIDAR) apparatus including free space optics to combine a target signal and a local oscillator signal to generate a combined signal. The LIDAR system also includes a set of multi-mode (MM) waveguides and a demultiplexer including a dispersive element. The demultiplexer configured to disperse, via the dispersive element, each respective wavelength of the combined signal at a corresponding angle, and reflect each respective wavelength of the combined signal to a corresponding MM waveguide of the set of MM waveguides.

公开(公告)号：US20230408655A1

公开(公告)日：2023-12-21

申请号：US18077129

申请日：2022-12-07

Applicant: AEVA, INC.

Inventor： Keith Gagne ,  Adrian Cort ,  Oguzhan Avci ,  Kevin Pollock ,  Pierre Hicks ,  Mina Rezk ,  Behsan Behzadi ,  Gautam Prabhakar

IPC: G01S7/4912 ,  G01S7/481 ,  G01S7/499

CPC classification number: G01S7/4917 ,  G01S7/4817 ,  G01S7/499

Abstract: A LiDAR system includes an optical subsystem with an optical axis. The optical subsystem includes an optical source to emit an optical beam, a first optical lens to transmit the optical beam, an optical window to reflect a first portion of the optical beam to generate a LO signal, an optical scanner to transmit a second portion of the optical beam to a target to scan the target to generate a target return signal, where the LO signal is disposed to be decentered from the optical axis on a second optical lens in front of a photodetector (PD) to increase a percentage of an overlap of the LO signal and the target return signal on the PD.

公开(公告)号：US11675085B1

公开(公告)日：2023-06-13

申请号：US17977937

申请日：2022-10-31

Applicant: AEVA, INC.

Inventor： Cameron Howard ,  Sawyer Isaac Cohen ,  Keith Gagne ,  Bradley Scot Levin ,  Pierre Hicks

IPC: G01S17/00 ,  G01S17/89 ,  G01S7/481 ,  G01S17/32

CPC classification number: G01S17/89 ,  G01S7/4817 ,  G01S17/32

Abstract: A system and method include receiving a first beam pattern from an optical source that comprises a plurality of optical beams transmitted towards a target causing different spaces to form between each optical beam. The system and method include measuring a vertical angle between at least two of the optical beams along a first axis and calculating a second beam pattern based on the vertical angle and a pivot point that causes the optical beams to be transmitted towards the target with substantially uniform spacing. The system and method include adjusting, at the pivot point, one or more components to form the second beam pattern to adjust the plurality of different spaces to the substantially uniform spacing for transmission towards the target. The system and method include receiving return optical beams from the target to produce a plurality of points to form the point cloud.

公开(公告)号：US20230068524A1

公开(公告)日：2023-03-02

申请号：US18054750

申请日：2022-11-11

Applicant: AEVA, INC.

Inventor： Neal N. Oza ,  Omer P. Kocaoglu ,  Behsan Behzadi ,  Oguzhan Avci ,  Keith Gagne ,  Mina Rezk

IPC: G01S7/484 ,  G02B27/10 ,  G02B27/28 ,  H04J14/02

Abstract: A method is provided that transmits a beam of co-propagating, cross-polarized light to a target. The method receives return light reflected from the target, which includes a first polarization and a second polarization. The method splits the return light into a first output corresponding to the first polarization and a second output corresponding to the second polarization using a first beam splitter. The method directs the first output to a first detector and directs the second output to a second detector. The method generates, by the first detector, a first electrical signal corresponding to the first polarization, and generates, by the second detector, a second electrical signal corresponding to the second polarization. The method determines an orientation of the target based on the first electrical signal and the second electrical signal, and generates a point cloud based on the orientation of the target.

公开(公告)号：US20220291354A1

公开(公告)日：2022-09-15

申请号：US17826774

申请日：2022-05-27

Applicant: Aeva, Inc.

Inventor： Behsan Behzadi ,  Keith Gagne ,  Oguzhan Avci ,  Omer P. Kocaoglu ,  Neal N. Oza ,  Mina Rezk

IPC: G01S7/481 ,  G01S17/34

Abstract: A light detection and ranging (LIDAR) apparatus is provided that includes an optical source to emit an optical beam towards a target and a mode field expander operatively coupled to the optical source to expand a mode area of the optical beam from a first mode of a single mode optical fiber to a second mode of a larger mode area optical fiber.

公开(公告)号：US11333949B1

公开(公告)日：2022-05-17

申请号：US17510880

申请日：2021-10-26

Applicant: AEVA, INC.

Inventor： Bradley Scot Levin ,  Keith Gagne ,  Neal N. Oza ,  Cameron Howard

IPC: G01S17/42 ,  G01S17/931 ,  G02F1/29 ,  G01S7/481

Abstract: A system and method including, receiving a plurality of optical beams propagating in a first direction along a first plane in a coplanar beam pattern. The system and method include redirecting a first set of the plurality of optical beams to propagate in the first direction along a second plane. The system and method include redirecting a second set of the plurality of optical beams to propagate in a second direction along the first plane. The system and method include redirecting the second set of the plurality of optical beams propagating in the second direction along the first plane to propagate in the first direction along the first plane. The system and method include generating a multi-planar beam pattern by forwarding the first set of the plurality of optical beams and the second set of the plurality of optical beams through an optical element.

公开(公告)号：US11099260B1

公开(公告)日：2021-08-24

申请号：US17221686

申请日：2021-04-02

Applicant: AEVA, INC.

Inventor： Keith Gagne ,  Mina Rezk

IPC: G01S7/481 ,  G02B26/10 ,  G01S17/89 ,  G02B5/04 ,  G02B27/30

Abstract: A light detection and ranging (LIDAR) system includes a first optical source to generate a first optical beam, a first collimating lens to collimate the first optical beam, a first prism wedge of a first prism wedge pair to redirect the first optical beam, and a first focusing lens to focus the first optical beam on a front surface of a second prism wedge of the first prism wedge pair, the second prism wedge to direct the first optical beam toward an output lens.

公开(公告)号：US20210257406A1

公开(公告)日：2021-08-19

申请号：US17307896

申请日：2021-05-04

Applicant: AEVA, INC.

Inventor： Mina Rezk ,  Keith Gagne ,  Neal N. Oza ,  Omer P. Kocaoglu

IPC: H01L27/22 ,  G11C11/16 ,  H01F10/32 ,  H01L43/08 ,  H01L43/10

Abstract: A light detection and ranging (LIDAR) system is provided that includes an optical a scanning mirror to steer a laser beam emitted from the tip of an optical fiber to scan a scene, and collect light incident upon any objects in the scene that is returned to the fiber tip. The LIDAR system further includes a re-imaging lens located between the optical fiber and scanning mirror, and an optic located between the scanning mirror and the scene. The re-imaging lens focuses the laser beam emitted from the optical fiber on or close to the first scanning mirror's center of rotation and thereby re-image the fiber tip at or close to the center of rotation, from which the laser beam is reflected as a divergent laser beam. And the optic is configured to collimate or focus the divergent laser beam from the first scanning mirror that is launched toward the scene.