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Laser radar transmitter and laser radar

一种激光雷达、发射装置的技术，应用在测量装置、电磁波的再辐射、利用再辐射等方向，能够解决发射装置功率、视场不能均衡、难更换某一子模块、体积大等问题，达到体积均衡、大视野、散热均衡的效果

Active Publication Date: 2022-04-15
ZVISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above reasons, the embodiment of the present invention provides a laser radar transmitter and a laser radar, which solve the mutual constraints between the sub-modules of the transmitter in the prior art, and it is difficult to replace a certain sub-module separately, and the volume is large, so that The problem that the power and field of view of the transmitting device cannot be balanced

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  • Laser radar transmitter and laser radar
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  • Laser radar transmitter and laser radar

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Embodiment Construction

[0046] Those skilled in the art should know that the specific structures, dimensions, and proportions shown in the accompanying drawings of this application are used to illustrate the implementation of the present invention, and are not intended to limit the scope of the claims of the present invention, and the scope of the claims should be based on the claims .

[0047] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0048] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. In terms of working principle, the detection signal (laser beam) is sent to the target, and then the received signal (target echo) reflected from the target is compared with the transmitted signal, and the relevant information of the target can be obtained after proper processing. , such as target distance, azimuth, height, speed, attitude, and even shape and other paramet...

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Abstract

The invention discloses a laser radar transmitting device and a laser radar system, which sequentially include: a plurality of mutually independent transmitting modules emitting specified laser light respectively along the traveling direction of the optical path; reflecting mirror groups respectively making the incident specified laser light beam reflection; MEMS reflector, receiving the beam reflected by the reflector group, and reflecting the beam to the beam expander mirror group; and the beam expander mirror group, making the beam of the laser beam expanded toward The area exits; wherein, a plurality of the transmitting modules are arranged on the opposite side of the mirror group across the MEMS mirror, and the mirror group and the beam expander mirror group are opposite to the MEMS The reflectors are arranged on the same side, and multiple emitting modules are arranged in layers. The invention realizes the miniaturization of the device while ensuring the emission efficiency and emission coverage, and is convenient for installation and mass production.

Description

technical field [0001] The invention relates to a laser radar, in particular to a laser radar transmitting device and a laser radar with the transmitting device. Background technique [0002] Lidar is a device that measures the distance, speed and other parameters of the target object by sending a laser to the surface of the object, and then measuring the arrival time of the reflected beam. It is a device that integrates optical devices, mechanical structures, electrical and software controls. Integrated optical instrument. With the development of technologies such as autonomous driving, there are more and more scenarios where lidar is integrated and installed in vehicles. [0003] For example, when the laser radar is installed on a vehicle, etc., it is hoped that the laser radar can meet the requirements of integration, miniaturization, large field of view, and convenient and reliable installation. However, in the prior art laser radar, the sub-modules of the transmitting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/484G01S7/481
CPCG01S17/02G01S7/481
Inventor 刘佳尧廉振锋石拓
Owner ZVISION TECH CO LTD