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A zoom liquid lens and optical magnifying instrument based on magnetic field control

A technology of magnetic field regulation and liquid lens, applied in instruments, optics, lenses, etc., can solve the problem of inability to achieve non-contact focusing, and achieve the effect of rapid magnetic response

Active Publication Date: 2021-08-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The inventor found that most of the existing liquid lens focusing is directly or indirectly controlled by voltage and current, and none of them can achieve non-contact focusing

Method used

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  • A zoom liquid lens and optical magnifying instrument based on magnetic field control
  • A zoom liquid lens and optical magnifying instrument based on magnetic field control
  • A zoom liquid lens and optical magnifying instrument based on magnetic field control

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0042] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0043] In...

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Abstract

The invention belongs to the field of liquid lenses and provides a zoom liquid lens and an optical magnifying instrument based on magnetic field control. Wherein, the zoom liquid lens based on magnetic field adjustment includes a cylindrical cavity, in which two kinds of incompatible transparent liquids are encapsulated; a magnetically conductive layer, which is attached to the lower surface of the bottom plate of the cylindrical cavity; the magnetically conductive layer A magnetic field perpendicular to the bottom plate is evenly distributed on the top; nano-magnetic particles, which are grafted with functional groups and deposited on the surface of the bottom plate; the aggregate shape of the nano-magnetic particles changes with the change of the magnetic field strength to adjust the surface of the bottom plate The hydrophilic and hydrophobic properties realize the purpose of zooming.

Description

technical field [0001] The invention belongs to the field of liquid lenses, in particular to a zoom liquid lens and an optical magnifying instrument based on magnetic field control. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Traditional solid lens focusing can only be achieved by changing the relative position of the lens, resulting in a complex mechanical device for the lens group, inconvenient operation and high production cost. The liquid self-variable lens achieves the purpose of focal length adjustment by changing its own parameters such as curvature and refractive index, and is easy to miniaturize and lighten. Since the liquid lens is based on the change of the surface tension of the liquid, the smoothness of the liquid surface is far greater than the machining accuracy of the traditional lens, and its surface roughness is belo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/14
CPCG02B3/14
Inventor 刘剑苏昂张季儒高瑞
Owner SHANDONG UNIV
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