公开(公告)号：US12298540B2

公开(公告)日：2025-05-13

申请号：US18601712

申请日：2024-03-11

Applicant: Luminar Technologies, Inc.

Inventor： Aditya Jain ,  Zoran Jandric ,  Dan Mohr ,  Kevin A. Gomez ,  Krishnan Subramanian

IPC: G02B1/00 ,  G01S7/481 ,  G02B5/00 ,  G02B6/122 ,  G02B27/00 ,  G02F1/29 ,  G02F1/313

Abstract: An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

公开(公告)号：US20240230865A1

公开(公告)日：2024-07-11

申请号：US18095457

申请日：2023-01-10

Applicant: Luminar Technologies, Inc

Inventor： Vinay Kashyap Takmul Purushothama Raju ,  Pranav Maheshwari

IPC: G01S7/497 ,  G01S17/894

CPC classification number: G01S7/497 ,  G01S17/894

Abstract: A system includes one or more processors configured to receive data point information captured using a lidar device, project the data point information onto a horizontal plane perspective, filter the projected data point information, determine a ground plane among one or more planes identified using the filtered projected data point information, and provide a parameter associated with the determined ground plane for configuring the lidar device. The system also includes a memory coupled with at least a portion of the one or more processors.

公开(公告)号：US12032270B2

公开(公告)日：2024-07-09

申请号：US17876656

申请日：2022-07-29

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： Aditya Jain ,  Yueyang Chen

IPC: G02F1/35 ,  G02B5/08 ,  G02F1/00

CPC classification number: G02F1/3546 ,  G02B5/0841 ,  G02F1/0063

Abstract: A metasurface includes a plurality of Bragg mirrors, each having a defect cavity therein, arrayed in a grid. A heat source is provided for each of the plurality of Bragg mirrors. Each heat source is positioned to selectively modulate heat applied to its respective Bragg mirror and to impart a different phase shift via the applied heat from the heat source.

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：US11953722B2

公开(公告)日：2024-04-09

申请号：US17336585

申请日：2021-06-02

Applicant: Luminar Technologies, Inc.

Inventor： Stephen L. Mielke ,  Roger S. Cannon

IPC: G02B6/12 ,  G01J1/04 ,  G01S7/481

CPC classification number: G02B6/12007 ,  G01J1/0437 ,  G01S7/4816 ,  G02B6/12002 ,  G02B2006/12035

Abstract: An optical receiver including an ASIC, a light detector element, and a protective mask is disclosed. The light detector element is disposed on the ASIC and has a top surface oriented toward incident light, the top surface including a portion configured to receive the incident light and via which the incident light reaches an active area of the light detector element. The protective mask is placed over the ASIC so as to (i) cover, from the incident light, a portion of the ASIC, and (ii) provide an aperture that defines an optical path for the incident light through the protective mask to the portion of the top surface of the light detector element.

公开(公告)号：US11885986B2

公开(公告)日：2024-01-30

申请号：US16943927

申请日：2020-07-30

Applicant: Luminar Technologies, Inc.

Inventor： Aditya Jain ,  Zoran Jandric ,  Dan Mohr ,  Kevin A. Gomez ,  Krishnan Subramanian

IPC: G02B5/00 ,  G02B1/00 ,  G02F1/313 ,  G02F1/29 ,  G02B6/122 ,  G02B27/00 ,  G01S7/481

CPC classification number: G02B5/008 ,  G01S7/481 ,  G01S7/4814 ,  G01S7/4817 ,  G02B1/002 ,  G02B1/007 ,  G02B6/1226 ,  G02B27/0087 ,  G02F1/292 ,  G02F1/3133 ,  G02F2202/30

Abstract: An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

公开(公告)号：US11841440B2

公开(公告)日：2023-12-12

申请号：US17535174

申请日：2021-11-24

Applicant: Luminar Technologies, Inc.

Inventor： Istvan Peter Burbank ,  Matthew D. Weed ,  Jason Paul Wojack ,  Jason M. Eichenholz ,  Dmytro Trofymov

IPC: G01S17/931 ,  B60W60/00 ,  G01S7/481 ,  G01S17/10 ,  G01S17/89 ,  G01S7/484 ,  B60W30/09 ,  B60W30/14

CPC classification number: G01S17/931 ,  B60W60/001 ,  G01S7/484 ,  G01S7/4814 ,  G01S7/4817 ,  G01S17/10 ,  G01S17/89 ,  B60W30/09 ,  B60W30/14 ,  B60W2420/52

Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan the emitted pulses of light along a high-resolution scan pattern located within a field of regard of the lidar system. The scanner includes one or more scan mirrors configured to (i) scan the emitted pulses of light along a first scan axis to produce multiple scan lines of the high-resolution scan pattern, where each scan line is associated with multiple pixels, each pixel corresponding to one of the emitted pulses of light and (ii) distribute the scan lines of the high-resolution scan pattern along a second scan axis. The high-resolution scan pattern includes one or more of: interlaced scan lines and interlaced pixels.

公开(公告)号：US20230393274A1

公开(公告)日：2023-12-07

申请号：US18235916

申请日：2023-08-21

Applicant: Luminar Technologies, Inc.

Inventor： Daniel J. Klemme ,  Pierre Asselin ,  Zoran Jandric

IPC: G01S17/34 ,  G01S7/48 ,  G01S17/89

CPC classification number: G01S17/34 ,  G01S17/89 ,  G01S7/4808

Abstract: A device includes a controller with a processor and memory with instructions for controlling power to a light source such that the light source emits a frequency-modulated continuous light beam that, over time, includes an up region, a down region, and a flat region. The up region includes increasing a frequency of the continuous light beam, the down region includes decreasing the frequency of the continuous light beam, and the flat region includes maintaining the frequency of the continuous light beam at a constant frequency.

公开(公告)号：US20230375826A1

公开(公告)日：2023-11-23

申请号：US18362773

申请日：2023-07-31

Applicant: Luminar Technologies, Inc.

Inventor： Daniel Aaron MOHR ,  Kevin A. GOMEZ

IPC: G02B26/10 ,  G02B26/12 ,  G01S7/481 ,  G02B5/09

CPC classification number: G02B26/101 ,  G02B26/124 ,  G01S7/4817 ,  G02B5/09

Abstract: Implementations described and claimed herein provide a mechanically-scanning 3-dimensional light detection and ranging (3D LiDAR) system including a galvo mirror attached to an armature of a galvanometer to reflect a light signal generated by a light generator, the galvanometer comprising at least one permanent magnet, at least one coil configured to carry current to move the armature, wherein the galvo mirror is configured to reflect the light signal generated by the light generator towards a one or more objects and the galvo mirror is further configured to reflect light signal reflected from the one or more objects towards a light detector.

公开(公告)号：US11353555B2

公开(公告)日：2022-06-07

申请号：US16178080

申请日：2018-11-01

Applicant: Luminar Technologies, Inc.

Inventor： Stephen D. Gaalema

IPC: G01S17/88 ,  G01S7/48 ,  G01S7/4912 ,  G01S17/42 ,  G01S17/931 ,  G01J1/46 ,  G01S7/4861 ,  H03K17/0416 ,  H03K17/74

Abstract: A circuit for quenching an avalanche photodiode (APD) detector is disclosed herein. The circuit may comprise a discrete transistor configured to draw a quench current so as to enable a drop in a reverse bias voltage applied to the APD detector, and an integrated circuit connected to the discrete transistor, the integrated circuit including a plurality of circuit elements for controlling the reverse bias voltage.