LCD optical lens based on parallel focusing

The utility model discloses a liquid crystal display (LCD) optical lens based on parallel focusing, which comprises a fixed support, an outer cylinder and a lens support are arranged on the fixed support, an arc-shaped groove inclining along the axial direction is arranged on the inner wall of the outer cylinder, a sliding column matched with the arc-shaped groove is arranged outside the lens support, and a strip-shaped hole is arranged on the lens support along the axial direction. The sliding columns are sequentially inserted into the strip-shaped holes and the arc-shaped grooves, barb parts are arranged on the fixing supports, and limiting protruding blocks are arranged on the circumferential side face of the outer cylinder and arranged in the barb parts. Therefore, the lens support only moves horizontally during focusing, parallel focusing of the lens and the sensor is realized, the lens is always in a non-relative rotation and parallel static matching effect, the lens on the lens support does not rotate,