Piezoelectric three-axis camera driving device and driving method

A drive device, piezoelectric technology, applied in hand-held camera devices, piezoelectric three-axis camera drive devices and drive fields, can solve the problems that camera lens drive devices cannot achieve large displacement, large load and high-speed focusing, and achieve structural Simple, responsive, and easy-to-assemble effects
CN113448053AActive Publication Date: 2021-09-28辽宁中蓝光电科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
辽宁中蓝光电科技有限公司
Publication Date
2021-09-28

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Abstract

The invention relates to a piezoelectric three-axis camera driving device and a driving method. The technical key points are that the piezoelectric three-axis camera driving device comprises a base; a protective shell; a frame unit including a first moving body, a second moving body, and a lens carrier; a piezoelectric driving unit comprising a first piezoelectric ceramic vibrator assembly used for driving the first moving body to move along the X axis relative to the base, a second piezoelectric ceramic vibrator assembly used for driving the second moving body to move along the Y axis relative to the first moving body, and a third piezoelectric ceramic vibrator assembly used for driving the lens carrier to move along the Z axis relative to the second moving body; a position sensing unit comprising an X-direction position sensing assembly, a Y-direction position sensing assembly and a Z-direction position sensing assembly. The driving device solves the problem that an existing camera lens driving device cannot achieve the large-displacement, large-load and high-speed focusing function, achieves the rapid focusing and anti-shake functions of a lens, and has the advantages of being small in size, large in thrust, large in displacement, free of magnetic interference, simple in structure and easy to assemble.
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Description

technical field

[0001] The invention relates to a camera lens driving device, in particular to a piezoelectric three-axis camera driving device and a driving method, which are suitable for a hand-held camera device. Background technique

[0002] At present, hand-held camera devices, especially camera drive devices of mobile phones, basically use a voice coil motor (Voice Coil Motor, VCM) to drive the entire lens. Although this method has the advantages of simple structure, mature technology, and low cost, there are still the following problems :

[0003] Application scenarios are basically limited to low-to-medium load, medium-to-low displacement main camera, sub-camera, wide-angle, macro, low-to-medium magnification telephoto, etc., limited by lens movement and drive methods, it is impossible to achieve large load, large displacement and Achieve ultra-long-distance shooting. With the urgent need for ultra-long-distance shooting, realizing the high-magnification continuous...

Claims

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