Internal gear compact type laser zoom lens

An internal gear compact laser zoom lens is characterized in that a laser is connected with an optical fiber connecting flange through an optical fiber, and a driving device drives a lens curve tube to rotate; the lens curve tube is in transmission connection with the sliding sleeve I and the sliding sleeve II through the synchronous driving mechanism, so that the compensation lens group and the zoom lens group are synchronously driven to move in the lens tube along the axial direction of the lens tube synchronously, thereby realizing zoom and compensation and ensuring consistent image surface positions. The optical path of the optical fiber coupling output laser is divergent, and the sizes of the rear light beam and the optical lens are small, so that the whole lens can be as small as possible by utilizing an internal zooming mode, and the structure of the lens is compact. 一种内齿轮紧凑型激光变焦镜，激光器通过光纤与光纤连接法兰连接，驱动装置驱动镜头曲线筒转动，由于镜头曲线筒通过同步驱动机构与滑套Ⅰ和滑套Ⅱ传动连接因此实现同步驱动补偿镜组与变倍镜组在镜头筒内同步沿镜头筒轴向移动，从而实现变焦和补偿保证像面位置一致。因为光纤耦合输出激光器的光路