All-solid-state variable-focus piezoelectric driving type micro lens based on SEBS film

A piezoelectric drive, micro-lens technology, applied in lenses, optics, instruments, etc., can solve problems such as liquid leakage, inability to zoom zoom range, etc., and achieve the effect of solving liquid leakage, wide zoom range, and low power consumption
CN110955041AInactive Publication Date: 2020-04-03TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2020-04-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of optics and the field of MEMS, in particular to an all-solid-state variable-focus piezoelectric driving type micro lens based on an SEBS film, which is structurally characterized in that the SEBS film is placed between two glass layers with different thicknesses; and the two annular piezoelectric actuators are respectively bonded on the upper bottom surface and the lower bottom surface of the glass film. When a voltage is applied to the piezoelectric actuator, the piezoelectric actuator forces the glass film to bend, so that a lens structure is integrally formed, and the glass film has different bending curvatures due to different voltages, so that the focal length of the micro lens is changed. The piezoelectric drive type micro lens is a typical micron-sized MEMS integrated product, and has the advantages of small size, low power consumption, no magnetic interference, wide zoom range, quick response and the like.
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Description

technical field

[0001] The invention relates to the field of optical technology components and the field of MEMS, in particular to an all-solid-state variable-focus piezoelectric-driven microlens based on SEBS film. Background technique

[0002] In recent years, with the development of information technology, the performance research of camera based on microlens has become a research hotspot in the current information field. The traditional camera system controls the focal length of the lens to be constant, and uses a voice coil motor to adjust the relative position between the lenses to achieve zooming, so that the overall optical structure occupies a large space. Therefore, traditional microlenses have disadvantages such as complex structure, severe mechanical wear, high energy consumption, electromagnetic interference, and long response time, and are not conducive to miniaturization. At present, experts and scholars at home and abroad have begun to explore microlenses th...

Claims

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