公开(公告)号：US10718928B2

公开(公告)日：2020-07-21

申请号：US15955112

申请日：2018-04-17

Applicant: Young Optics Inc.

Inventor： Wen-Zhou Chen ,  You-Ting Huang ,  Chao-Shun Chen

IPC: G02B7/08 ,  G02B7/10 ,  G02B15/14

Abstract: On embodiment of the invention provides an optical lens includes a lens barrel, a first lens group and a photo interrupter disposed in the lens barrel, a light-shading sheet and a power machine. The photo interrupter has an optical transmitter and an optical receiver, the optical transmitter emits a light beam in a first direction, and the optical receiver receives the light beam. The light-shading sheet is disposed in a propagation path of the light beam and has two shading parts with mutually different lengths. The power machine is linked to a kinetic machine part, and the kinetic machine part is connected to the first lens group.