1results about How to "Guaranteed collimation" patented technology

The present application relates to a parent-child optical lens, which comprises a lens frame, a first carrier and a second carrier and a first lens and a second lens installed in the lens frame, the first carrier is located in the second carrier and can move relative to the second carrier. The first side of the second carrier has a sliding fitting structure and a fitted first track; the second driving device for driving the second carrier comprises a piezoelectric element, a vibration starting part and a driven part, the driven part is linear and serves as the second track; the vibration starting part mechanically vibrates under the driving of the piezoelectric element attached to its surface and moves along the optical axis relative to the second track, and the moving range is at least 6 mm. The vibration starting part is arranged in the interior of the lens frame and is fixed to the lens frame or the second carrier through a mounting part; the moving stroke of the vibration starting part is limited to the middle section area of the lens frame. The present application also provides a corresponding camera module.