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Laser emitter and laser radar with same

A technology of laser emission and laser radar, applied in the direction of radio wave measurement systems, instruments, etc., can solve the problems of unfavorable heat dissipation, waste of space for laser emission boards, etc., and achieve the effect of facilitating heat dissipation, improving heat dissipation effect, and reducing interference

Active Publication Date: 2019-06-28
HESAI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] What the present invention aims to solve is the technical problem that the layout of the laser emitting board of the existing laser emitting device wastes space and is not conducive to heat dissipation

Method used

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  • Laser emitter and laser radar with same
  • Laser emitter and laser radar with same
  • Laser emitter and laser radar with same

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Embodiment Construction

[0052]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0053] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom" etc. is based on the orientation or positional relationship shown in the drawings, and is...

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Abstract

The invention provides a laser emitter and a laser radar with the same. The laser emitter comprises laser emitting plates, each laser emitting plate is provided with a laser source and a fiber fixed slot, and the fiber fixed slot is suitable for fixing a fiber; the laser emitting plates are arranged surrounding a first direction, and are separated from one another in the first direction and / or a first plane; the first direction is the central axial direction of the laser radar, and the first plane is vertical to the first direction. Factors including that need for laser beams of the laser radar, design space of the laser emitter and heat radiation are taken into consideration in design of the laser emitter, the distance and relative angle between the adjacent laser emitting plates can be adjusted flexibly, the occupation space of the laser emitter is saved, the radiating laser plates can play the role of flow-disturbing blades, and the heat radiation effect is improved substantially.

Description

technical field [0001] The invention relates to the technical field of laser radar, in particular to a laser emitting device and a laser radar having the same. Background technique [0002] In the autonomous driving technology, the environmental perception system is a basic and crucial part, which guarantees the safety and intelligence of the autonomous vehicle. Among the environmental perception sensors, the laser radar has the advantages of reliability, detection range and ranging accuracy. Has incomparable advantages. [0003] LiDAR is often used in an outdoor open-air environment, and LiDAR needs to be made into a closed structure. Because the laser transmitter, receiver, motor, rotor coil, etc. inside the lidar will generate a large amount of heat when they work, the airtight environment will cause the internal heat to accumulate, resulting in a higher temperature, which will ultimately affect the radar. Therefore, it is necessary to dissipate heat from the lidar. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
Inventor 李娜向少卿
Owner HESAI TECH CO LTD
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