Optical module, laser radar and self-moving device

Abstract

This application provides an optical module, a lidar, and a self-moving device, relating to the field of optical technology, to solve the technical problem of insufficient field-of-view coverage in complex scenes. The optical module includes a light source and a beam shaping unit. The beam shaping unit includes a beam shaping section and a beam angle modulation section. The beam shaping section is located on the light-emitting side of the light source, and the beam angle modulation section is located on the light-emitting side of the beam shaping section. The beam shaping section has multiple convex surfaces on the side facing the light source, and the beam angle modulation section has multiple refractive surfaces on the side away from the beam shaping section. The multiple refractive surfaces and the multiple convex surfaces are arranged in a one-to-one correspondence. The convex surfaces are used to collimate the light beam generated by the light source, so that the collimated beam is directed towards the refractive surface corresponding to the convex surface. The refractive surfaces are used to adjust the beam's pointing angle so that the beam exits at a preset angle. This application can meet the field-of-view coverage requirements in different scenes, improve beam resolution, and thus improve the overall performance of the device.

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