- 专利标题: DEVICE AND METHOD FOR SCANNING MEASUREMENT OF THE DISTANCE TO AN OBJECT
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申请号: US17228117申请日: 2021-04-12
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公开(公告)号: US20210364607A1公开(公告)日: 2021-11-25
- 发明人: Vladimir DAVYDENKO
- 申请人: Scantinel Photonics GmbH
- 申请人地址: DE Ulm
- 专利权人: Scantinel Photonics GmbH
- 当前专利权人: Scantinel Photonics GmbH
- 当前专利权人地址: DE Ulm
- 优先权: EP20176355.4 20200525
- 主分类号: G01S7/481
- IPC分类号: G01S7/481 ; G01S17/931 ; G01S17/32 ; G02F1/31
摘要:
A device for scanning measurement of a distance to an object has a light source, which generates an optical output signal having a time-varying frequency. The device includes multiple optical processing units, which are connected optically in parallel to the light source. Each processing unit has an optical distribution matrix including multiple optical switches that distribute optical output signals selectively onto different optical waveguides. Optical output signals are outcoupled into the free space via free space couplers and optical output signals reflected on the object are coupled as optical measurement signals into the waveguides. A detector detects a superposition of the optical measurement signal and the optical output signal generated by the light source. A circulator directs optical output signals supplied by the light source to the distribution matrix and optical measurement signals coming from the distribution matrix to the detector.