JP7425000B2 - Lidar出力信号の方向を調整するための光学スイッチング - Google Patents
Lidar出力信号の方向を調整するための光学スイッチング Download PDFInfo
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S17/34—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
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- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
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- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
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- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
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- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Description
Claims (12)
- 出発LIDAR信号を複数の異なる代替導波路の1つに誘導するように構成されたスイッチを含む、LIDARチップであって、
各代替導波路は、出発LIDAR信号が代替導波路に向けられたときに通過するファセットで終端する、LIDARチップ及び
前記代替導波路のいずれか1つからの前記出発LIDAR信号を受信するように構成され、かつ、受信されたLIDAR出力信号を再誘導し、それにより、該出発LIDAR信号が再誘導構成要素から離れる方向は、前記代替導波路の変化に応答して変化し、前記再誘導構成要素は、前記代替導波路から前記出発LIDAR信号を受信するように構成された再誘導構成要素
を含み、
前記ファセットは、再誘導構成要素の複数の異なる焦点を結ぶ円弧状の焦点線に沿って配置される、光学システム。 - 前記再誘導構成要素は、前記再誘導構成要素が異なる代替導波路から出発LIDAR信号を受信するときに、該出発LIDAR信号が異なる方向に前記再誘導構成要素から離れるように構成される、請求項1に記載のシステム。
- 前記再誘導構成要素は、前記再誘導構成要素が異なる代替導波路から出発LIDAR信号を受信したときに、前記出発LIDAR信号が異なる送信角度に前記再誘導構成要素から離れるように構成される、請求項1に記載のシステム。
- 前記出発LIDAR信号が前記再誘導構成要素から離れる方向のいずれも、互いに平行しない、請求項1に記載のシステム。
- 前記再誘導構成要素は、前記出発LIDAR信号が前記再誘導構成要素から離れるにつ
れて平行化されるように、前記出発LIDAR信号を平行させる、請求項1に記載のシス
テム。 - 前記再誘導構成要素がレンズである、請求項1に記載のシステム。
- 前記レンズが、ファセットのいずれか1つを通過する出発LIDAR信号を受信するように配置される、請求項6に記載のシステム。
- 前記出発LIDAR信号と前記レンズとの間の入射角が、前記出発LIDAR信号を受信した前記代替導波路の関数である、請求項7に記載のシステム。
- 前記レンズが、光学スイッチに対して静止している、請求項6に記載のシステム。
- さらに相対速度および/または反射物体とLIDAR出力信号源との間の距離を示すLIDARデータを生成するように構成された電子回路を含み、前記LIDARデータは合成信号のビート周波数から計算され、合成信号には、物体によって反射された後に光学システムに戻ってきた出発LIDAR信号からの光と組み合わされた参照信号からの光が含まれる、請求項1に記載のシステム。
- 前記出発LIDAR信号が前記再誘導構成要素から遠ざかる方向を変えるようにスイッチを操作する電子回路の結果として、前記出発LIDAR信号が視野内で導かれる、請求項10に記載のシステム。
- 異なる代替導波路のファセットにおける出発LIDAR信号の伝播方向が、異なる代替導波路ごとに異なる、請求項1に記載のシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862689716P | 2018-06-25 | 2018-06-25 | |
US62/689,716 | 2018-06-25 | ||
US16/277,790 | 2019-02-15 | ||
US16/277,790 US11536805B2 (en) | 2018-06-25 | 2019-02-15 | Optical switching for tuning direction of LIDAR output signals |
PCT/US2019/036604 WO2020005537A1 (en) | 2018-06-25 | 2019-06-11 | Optical switching for tuning direction of lidar output signals |
Publications (2)
Publication Number | Publication Date |
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JP2021529310A JP2021529310A (ja) | 2021-10-28 |
JP7425000B2 true JP7425000B2 (ja) | 2024-01-30 |
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JP2020571353A Active JP7425000B2 (ja) | 2018-06-25 | 2019-06-11 | Lidar出力信号の方向を調整するための光学スイッチング |
Country Status (5)
Country | Link |
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US (2) | US11536805B2 (ja) |
EP (1) | EP3811106B1 (ja) |
JP (1) | JP7425000B2 (ja) |
CN (1) | CN112771404A (ja) |
WO (1) | WO2020005537A1 (ja) |
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2019
- 2019-02-15 US US16/277,790 patent/US11536805B2/en active Active
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CN112771404A (zh) | 2021-05-07 |
WO2020005537A1 (en) | 2020-01-02 |
JP2021529310A (ja) | 2021-10-28 |
US11536805B2 (en) | 2022-12-27 |
EP3811106A4 (en) | 2022-03-23 |
US20220342048A1 (en) | 2022-10-27 |
EP3811106B1 (en) | 2024-04-03 |
US20190391242A1 (en) | 2019-12-26 |
EP3811106A1 (en) | 2021-04-28 |
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