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Automatic laser radar collimating system

An automatic collimation and lidar technology, which is applied in radio wave measurement systems, optical devices, and electromagnetic wave re-radiation. The effect of sex and precision, simple structure

Inactive Publication Date: 2009-10-21
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the laser auto-collimation system can only automatically collimate the emitted beam of the laser, but cannot collimate the laser radar transceiver system.

Method used

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  • Automatic laser radar collimating system

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Embodiment Construction

[0010] see figure 1 , the laser radar automatic collimation system includes a measurement and control computer 3, a transmitting and receiving part and a collimation adjusting part. The measurement and control computer 3 is electrically connected to the transmitting and receiving component and the collimation adjusting component respectively.

[0011] Among them, the measurement and control computer 3 plays an overall control role, and it is a general-purpose microcomputer.

[0012] The transmitting and receiving part includes the receiving main mirror 1 and the diaphragm 18 at its focal point, the diaphragm 18 is connected to the optical fiber 5, and a reflector 17 is placed on its back, and the reflecting mirror 17 is set at 45 degrees to the receiving optical axis of the receiving main mirror 1 , the reflection optical axis of the mirror 17 is coaxial with the receiving optical axis of the main receiving mirror 1 .

[0013] The collimation adjustment part is: the corner r...

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Abstract

The invention discloses an automatic laser radar collimating system comprising a measuring and controlling computer (3), a receiving primary mirror (1) and a diaphragm (18) at a focus of the receiving primary mirror (1). A reflecting mirror (17) is arranged at the back of the diaphragm (18), and a reflecting light axis of the reflecting mirror (17) and a receiving light axis of the receiving primary mirror (1) are coaxial. Particularly, a corner reflector (6) is arranged above the edge of the reflecting mirror (17), and reflecting rays of the corner reflector (6) are parallel to reflecting rays of the reflecting mirror (17); the diaphragm (18) is provided with a measuring baffle (4), a CCD camera (2) is arranged in the central through hole (19) of the receiving primary mirror (1), and an imaging focus of the CCD camera (2) is arranged on the diaphragm (18); and an electric guide mirror (7) is arranged on an input light path of the reflecting mirror (17), wherein the measuring and controlling computer (3) is respectively electrically connected with a measuring baffle driving part (15), the CCD camera (2) and an electric guide mirror driving part (13). The automatic laser radar collimating system can automatically collimate and adjust a light-receiving path and a light-transmitting path and can be widely applied to an on-vehicle or on-machine laser radar.

Description

technical field [0001] The invention relates to a radar collimation system, in particular to a laser radar automatic collimation system. Background technique [0002] In various laser radar systems, in order to reduce the volume of the whole machine, people often share a telescope with the laser transmitting and receiving parts, as in a copy of the applicant who is one of the applicants on December 13, 2006 A "Vehicle Pollution Measuring Laser Radar Device Based on Raman Light Source" was described in the Chinese Invention Patent Application Publication CN 1877308A published in Japan. Its structure is to set an aperture at the focal point of the receiving primary mirror, the aperture is connected to the photomultiplier tube through the optical fiber, the photomultiplier tube is electrically connected to the microcomputer, and the back of the aperture is equipped with a 45-degree reflector that reflects the emitted light beam. Wherein, the reflection optical axis of the 45-d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/497G01S17/00G01B11/27
Inventor 谭锟邵石生
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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