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Lidar device

A laser radar, light receiving technology, applied in the field of radar, can solve the problem of large energy loss in the optical path

Pending Publication Date: 2022-05-03
WUHAN WANJI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the light path reentrant optical system in the prior art has a large loss of light path energy

Method used

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Embodiment Construction

[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0040] In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless ...

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Abstract

The invention provides a laser radar device. The laser radar device comprises a transmitting mechanism and a receiving mechanism. The emitting mechanism comprises a light emitting assembly and a light emitting lens set, and the light emitting assembly and the light emitting lens set are coaxially arranged so that laser beams emitted by the light emitting assembly can be directly emitted out through the light emitting lens set. The receiving mechanism comprises a light receiving assembly and a light receiving lens group, and the light receiving assembly and the light receiving lens group are coaxially arranged, so that an echo light beam is directly projected onto the light receiving assembly after passing through the light receiving lens group. According to the laser radar device, the energy consumption of the light path can be reduced, and the utilization rate of the energy of the light path is higher.

Description

technical field [0001] The present application relates to the technical field of radar, in particular to a laser radar device. Background technique [0002] Lidar emits a laser beam to the target area and receives the laser echo beam reflected from the target area, and obtains the three-dimensional information of the space to be measured according to the flight time of the laser beam. Because lidar has the advantages of high resolution, high measurement accuracy, and strong anti-interference ability, it is widely used in unmanned driving and other fields, and has become an indispensable sensing device in these fields. [0003] The optical system of lidar is used to control the propagation direction and convergence and divergence of laser light, which is a key part of lidar that is different from other radars with working mechanisms. The optical system of the laser radar in the prior art usually adopts an optical path reentrant optical system composed of a mirror group and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/484G01S7/4865G01S7/481
CPCG01S7/484G01S7/4865G01S7/481
Inventor 朱耀德胡攀攀杨昆王潇枫
Owner WUHAN WANJI INFORMATION TECH