Optical lens and laser radar

The invention provides an optical lens and a laser radar, and relates to the technical field of radars. According to the optical lens provided by the embodiment of the invention, the first lens group with the positive focal power is arranged close to the object side, the second lens group with the negative focal power is arranged close to the image side, and the positive and negative relationship of the focal power of each lens is reasonably set, so that the optical lens has a relatively long focal length, and meanwhile, the focal length of the lens is increased. And the lens is short in length. Therefore, when the optical lens is applied to the laser radar, the laser radar can have better resolution, the detection performance and the safety performance are improved, and the realization of equipment miniaturization is facilitated. 本申请提供一种光学镜头和激光雷达，涉及雷达技术领域。本申请实施例提供的光学镜头，通过将具有正光焦度的第一透镜组设置在靠近物侧，将具有负光焦度的第二透镜组设置在靠近像侧，并对各个透镜的光焦度正负关系进行合理地设置，有利于该光学镜头在具有较长焦距的同时，具有较短的镜头长度。因此该光学镜头在应用于激光雷达时，能够使激光雷达具有较佳的分辨率，提高探测性能和安全性能，同