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Laser radar optical system

An optical system and laser radar technology, applied in the field of laser radar optical systems, can solve the problems of simple assembly and large-scale scanning at the same time, and achieve the effect of simple structure and easy assembly

Inactive Publication Date: 2021-09-28
BENEWAKE BEIJING TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The embodiment of the present disclosure is to propose a laser radar optical system to solve the problem that the existing technology cannot satisfy the problem of simple assembly and large-scale scanning at the same time

Method used

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  • Laser radar optical system

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Embodiment Construction

[0019] The technical solutions of the present disclosure will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0020] It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] In order to enable those skilled in the art to better understand the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only It is an embodiment of a part of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by perso...

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Abstract

The invention relates to a laser radar optical system which comprises a transmitting module, a receiving module and an optical module, the transmitting module is used for emitting laser, emergent light irradiates a target after passing through the optical module, target reflected light enters the receiving module after passing through the optical module, and the optical module comprises a perforated reflector, a reflector, a galvanometer and a polyhedral reflector. Emergent light of the transmitting module is irradiated to the reflector through a small hole of the perforated reflector, the reflector reflects the emergent light to the galvanometer, the galvanometer swings vertically, the polyhedral reflector rotates horizontally, and target reflected light enters the receiving module after passing through the polyhedral reflector, the galvanometer, the reflector and the perforated reflector. According to the embodiment of the invention, vertical and horizontal scanning is realized at the same time through the combination of the galvanometer and the polyhedral reflector, namely surface scanning is realized.

Description

technical field [0001] The disclosure of the present invention relates to the field of laser radar, in particular to a laser radar optical system. Background technique [0002] Lidar is an active distance detection device that uses lasers as the emission light source and uses photoelectric detection technology. It has the advantages of small size and high measurement accuracy, and is widely used in unmanned driving, AGV, robots and other fields. [0003] In order to detect targets in a large range, the existing laser radar often uses MEMS galvanometer as the scanning mechanism, so that the laser scans according to a certain angle and frequency. However, the deflection angle of the MEMS galvanometer is limited, and its scanning range is also limited. limit. To achieve a large angle of deflection, an additional lens system is generally used or multiple lidars are stitched together to enlarge their scanning angle. The use of additional lens systems requires sophisticated asph...

Claims

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Application Information

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IPC IPC(8): G01S17/08G01S7/481
CPCG01S17/08G01S7/481G01S7/4817
Inventor 疏达李远张东虎张海武
Owner BENEWAKE BEIJING TECH CO LTD
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