Optical transmission module, laser transmitting module, laser radar system and vehicle

Abstract

The invention provides an optical transmission module, a laser transmitting module, a laser radar system and a vehicle, wherein the optical transmission module includes a support having a light passage suitable for passage of light and a plurality of transmission submodules arranged on the support, arranged along the light passage in sequence and suitable for transmitting beams according to a preset light path. The laser radar system comprises a light source, the optical transmission module, a scanning module, and a detection module; the light source, the optical transmission module and the scanning module are arranged along a first light path in sequence; the scanning module, the optical transmission module and the detection module are arranged along a second light path in sequence. The optical transmission module according to an embodiment of the invention is compact in structure and optical path design, the laser transmitting module has small size, and therefore, utilization rate ofinner space of the laser radar system is increased; in addition, the laser radar system has good heat-dissipating performance and high in signal-to-noise ratio and has improved overall performance.

Description

technical field [0001] The invention relates to the technical field of laser detection, in particular to an optical transmission module, a laser emission module, a laser radar system and a vehicle. Background technique [0002] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. It is an advanced detection method that combines laser technology with photoelectric detection technology. Lidar is widely used in autonomous driving, transportation and communication, drones, intelligent robots, energy Safety detection, resource exploration and other fields provide extremely important raw materials for national economy, social development and scientific research, showing good application prospects. [0003] In the field of unmanned driving, lidar needs to meet the performance of small size, high reliability, high imaging frame rate, high resolution, and long-range ranging. Many components contained in lidar,...

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Problems solved by technology

[0005] The technical problem solved by the present invention is that the unreasonable structural design of the laser radar in the prior art causes the low utilization rate of the internal space of the laser radar, the poor heat dissipation performance of the light source, and the low signal-to-noise ratio, etc.

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