Semiconductor laser and light field splicing method for realizing large-angle uniform irradiation

Abstract

The invention discloses a semiconductor laser capable of realizing wide-angle uniform shining and a light field splicing method. The semiconductor laser comprises a base the upper surface of which is an arc surface and at least one set of laser array unit sets, wherein each laser array unit set comprises at least one laser array unit; each array unit comprises a triangular wedge-shaped tube seat,a semiconductor laser core set, two electrode leads and a quartz scattering piece, wherein the semiconductor laser core set is located on the upper surface of the tube seat, the two electrode leads are led out from the two ends of each semiconductor laser core set, and the quartz scattering piece covers on the semiconductor laser core set. The invention has the advantages that the asymmetric character of the light fields of the semiconductor laser in two directions is fully utilized, diffident quantities of laser arrays are respectively used for splicing in the slow axis and fast axis directions of the laser in accordance with a specific curve support and a unit array with a specific angle so as to realize equivalent diffusion angle, uniform-radiation wide angle and high-power light source irradiation in the slow axis and fast axis directions.

Description

technical field [0001] The invention relates to a laser, in particular to a semiconductor laser for realizing large-angle uniform irradiation and a unit splicing method. Background technique [0002] In recent years, laser illumination imaging technology has developed rapidly, especially active laser illumination imaging technology has achieved considerable development in the industrial and military fields. [0003] The principle of active laser illumination imaging technology is basically the same as that of lidar. Near-infrared lasers are used as illumination sources to detect and image long-distance targets under low illumination conditions. According to the different light emitting forms of the illumination source, the active laser illumination imaging system can be divided into continuous laser illumination imaging system and pulse illumination imaging system. The continuous laser illumination imaging system uses continuous semiconductor lasers to illuminate the target...

AI Technical Summary

Problems solved by technology

Therefore, in the case of limited light source volume, it is impossible to achieve uniform irradiation in a large angle range through conventional beam expansion and shaping technology.

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