公开(公告)号：US20240219541A1

公开(公告)日：2024-07-04

申请号：US18396594

申请日：2023-12-26

Applicant: Luminar Technologies, Inc.,

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR

IPC: G01S7/497 ,  G01S7/481

CPC classification number: G01S7/4972 ,  G01S7/4817 ,  G01S7/4818

Abstract: A LiDAR system includes a light source to generate light pulses, a lens, a rotating scanning mirror, and a photonic integrated circuit (PIC) chip mechanically registered with the lens. The PIC chip includes a transmission waveguide, a receiver waveguide, and first and second free space couplers lithographically fabricated thereon. A detector is further fabricated on the PIC chip. The transmission waveguide is optically coupled to the light source. The first free space coupler is optically coupled to the transmission waveguide. A second free space coupler is lithographically aligned with the first free space coupler and optically coupled to the receiver waveguide. The detector is optically coupled to a second end of the receiver waveguide. The lens focuses light pulses output from the first free space coupler onto the scanning mirror and returning light reflected from the scanning mirror onto the second free space coupler.

公开(公告)号：US20240069170A1

公开(公告)日：2024-02-29

申请号：US18333435

申请日：2023-06-12

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR

IPC: G01S7/481

CPC classification number: G01S7/4817 ,  G01S7/4814 ,  G01S7/4816

Abstract: A LiDAR system includes a first mirror positioned to receive the outgoing light beam from the laser; a second mirror positioned to receive a reflected light beam from the first mirror and to redirect the reflected light beam onto a target, and a detector that detects return light reflected off of the target. The second mirror of the optical periscope includes a cross-sectional area sized and shaped to substantially match a cross-sectional area of the reflected light beam to improve a quality of signal detected by the detector.

公开(公告)号：US20240168136A1

公开(公告)日：2024-05-23

申请号：US18511816

申请日：2023-11-16

Applicant: Luminar Technologies, Inc.

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR

IPC: G01S7/481 ,  G01S7/288 ,  G01S7/4863 ,  G01S17/32

CPC classification number: G01S7/4817 ,  G01S7/288 ,  G01S7/4863 ,  G01S17/32

Abstract: The technology disclosed herein provides a method of operating a LiDAR system, the method including directing from a light source a distance-measuring beam of light on a target, receiving a reflection of the beam of light from the target on a fast mechanical scanner, compensating for angular offset induced by the fast mechanical scanner within the reflection of the beam of light using an offset compensator, and determining a distance between the light source and the target based on the offset corrected light beam output from the offset compensator and directed to a detector.

公开(公告)号：US20240142589A1

公开(公告)日：2024-05-02

申请号：US18495632

申请日：2023-10-26

Applicant: Luminar Technologies, Inc.

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR ,  Aditya JAIN

IPC: G01S7/497 ,  G01S7/481

CPC classification number: G01S7/497 ,  G01S7/4814

Abstract: Implementations described and claimed herein provide an example LiDAR architecture that facilitates low-cost alignment of solid state components. The system includes at least a transceiver chip, a laser, and a u-shaped optical amplifier. The transceiver chip includes a signal preparation block that receives light from the laser and that modulates the laser light. The u-shaped optical amplifier is positioned to receive a light signal output from the signal preparation block and to output an amplified light signal back into the transceiver chip.

公开(公告)号：US20240230852A1

公开(公告)日：2024-07-11

申请号：US18409677

申请日：2024-01-10

Applicant: Luminar Technologies, Inc.

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR

IPC: G01S7/481 ,  G01S7/484

CPC classification number: G01S7/4817 ,  G01S7/4816 ,  G01S7/484 ,  H03M1/12

Abstract: A LIDAR system includes a light source configured to generate light pulses, a mechanical scanner, a detector including an array of discrete detector channels configured to convert light input into electrical signals, a lens that focuses both light pulses generated at the light source onto the mechanical scanner and returning light reflected from the mechanical scanner for reception in sequence by the detector channels, a first analog to digital converter (ADC) connected to each of the detector channels in the array and configured to convert the electrical signals from the detector channels into digital data signals, and a signal processor coupled to the ADC to receive the digital data signals therefrom and configured to generate images of targets in a field of view of the LiDAR system from the digital data signals.

公开(公告)号：US20240210527A1

公开(公告)日：2024-06-27

申请号：US18393201

申请日：2023-12-21

Applicant: Luminar Technologies, Inc.

Inventor： Daniel Aaron MOHR ,  Daniel Joseph KLEMME

IPC: G01S7/481 ,  G01S7/4861

CPC classification number: G01S7/4816 ,  G01S7/4817 ,  G01S7/4861

Abstract: Implementations described and claimed herein include a device with a rotating polygon scanner configured to deflect light reflected from one or more distant objects towards a lens configured to focus the reflected light, and a detector chip including a plurality of detector channels, each detector channel including a photodiode configured to receive the focused light from the lens and a local oscillator, wherein the local oscillator on each of the plurality of detector channel has a power level that is different than power level of the local oscillator of the other of the plurality of detector channels.

公开(公告)号：US20240183945A1

公开(公告)日：2024-06-06

申请号：US18526327

申请日：2023-12-01

Applicant: Luminar Technologies, Inc.

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR ,  Paul LEISHER

IPC: G01S7/481

CPC classification number: G01S7/4814 ,  G01S7/4818

Abstract: Implementations described and claimed herein include a LiDAR system with a semiconductor optical amplifier (SOA) configured to receive a light signal from a master-oscillator laser source, the semiconductor optical source including an optical splitter configured to split the light signal into two or more split light signals and two or more respective semiconductor optical amplifiers (SOAs), each SOA configured to receive one of the split light signals and amplify the split light signal.