Lens module

By introducing the design of a movable carrier and a magnetic excitation coil into the mobile phone lens module, the interaction of magnetic elements drives the movement of the movable carrier, solving the image blurring caused by hand shaking, and achieving a low-cost optical anti-shake effect.

CN109061979BActive Publication Date: 2025-03-21SHENZHEN QIUTI MICROELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN201810677782.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2018-06-27
Publication Date
2025-03-21
Estimated Expiration
2038-06-27

AI Technical Summary

Technical Problem

The existing mobile phone lens modules will blur the image due to hand shaking during shooting, and the addition of optical anti-shake motors will increase production costs and affect market competitiveness.

Method used

A lens module is designed to add a movable carrier and a magnetic excitation coil inside the module, and use the interaction of magnetic elements to generate a driving force, so that the movable carrier moves in a plane perpendicular to the optical axis direction, thereby compensating for the jitter of the lens.

Benefits of technology

It effectively solves the problem of image blur caused by hand shaking during shooting, and compared with traditional methods, the cost is lower, which improves the market competitiveness of the product.

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Abstract

A lens module includes a lens, an imaging chip, a circuit board, a movable carrier, a magnetic excitation coil and a magnetic element, wherein the imaging chip is arranged on the circuit board, the movable carrier can be movably connected to the circuit board, the lens is fixedly arranged on the movable carrier, the magnetic excitation coil is arranged on the movable carrier, and the magnetic element is arranged on the circuit board, and the magnetic excitation coil and the magnetic element can interact with each other to generate a driving force to drive the movable carrier to move in a plane perpendicular to the optical axis direction. The lens module provided by the present invention adds a movable carrier inside the module as a mechanical structure for realizing optical image stabilization, and by controlling the direction and magnitude of the current loaded into the magnetic excitation coil installed on the movable carrier, the moving direction and moving distance of the movable carrier can be controlled, thereby driving the lens to move in a specific direction and a specific distance, compensating for the slight movement of the lens caused by hand shaking when taking pictures, stabilizing the optical path, and solving the problem of image blur caused by hand shaking during taking pictures.
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