Optical lens and related devices

Abstract

An optical lens and a related device are applied to the field of detection technology. The optical lens comprises: a first lens, a second lens, a third lens and a fourth lens which are coaxially arranged in sequence from a light source side to an object side. The first lens, the third lens and the fourth lens have positive focal power, and the second lens has negative focal power; at least one meniscus lens is included in the first lens, the second lens and the third lens, and the fourth lens comprises a double convex lens array or a convex flat lens array. The optical lens adopts an optical architecture of four lenses, the transmission performance of the light of the light source can be improved by reasonably distributing the shape and focal power of the four lenses, and the optical lens can be decoupled from the light source, which is beneficial to the miniaturization and modularization of the optical lens. Therefore, the perception device adopting the optical lens of the application can realize miniaturized design and high-quality detection performance, and the perception device can be a laser radar, a camera or a laser vision sensor integrating the laser radar and the camera.

Images