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Liquid lens driving method

A technology of liquid lens and driving method, which is applied in the fields of lenses, optics, instruments, etc. It can solve the problem that the voltage first liquid cannot accurately control the focal length modulation, and achieve the effect of low power consumption and fast response time

Inactive Publication Date: 2014-10-15
LUSTROUS ELECTRO OPTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of analog driving methods may cause the first liquid to be unable to accurately control the focal length modulation due to defects on the substrate surface, particles, or voltage errors.

Method used

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  • Liquid lens driving method
  • Liquid lens driving method
  • Liquid lens driving method

Examples

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Embodiment Construction

[0038] Figure 1A is a top view of the liquid lens 1 of the embodiment of the present invention, and Figure 1B is a cross-sectional view of the liquid lens 1 of the embodiment of the present invention, wherein, Figure 1B The section diagram is based on Figure 1A It is obtained by sectioning the section line A-A. see Figure 1A , the driving of the liquid lens 1 is controlled by the controller 2 and the power supply device 3 . see Figure 1B , in detail, the liquid lens 1 includes a substrate 10 , an insulating layer 20 , a driving electrode 30 , a low surface energy layer 40 , a first liquid 50 , a second liquid 60 , an encapsulation mechanism 70 and a transparent cover 80 .

[0039] The driving electrodes 30 are located on the substrate 10 , and the driving electrodes are composed of M concentric ring electrodes. It should be noted that M is a positive integer, and M is greater than or equal to 2. That is to say, the liquid lens 1 includes two or more concentric rings. ...

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Abstract

A liquid lenses driving method to control the focus of a liquid lens by inputting voltages with specific voltage input mode to specific electrodes. The liquid lens includes a first liquid, a second liquid having a lower refractive index than and immiscible with the first liquid, a plurality of driving electrodes (M), an container, and a transparent cover. M is greater than or equal to 2. The first liquid is positioned above the plurality of electrodes. The electrodes are concentrically configured and annular in shape. The outermost electrode is a first electrode and the innermost electrode is an Mth electrode. Adjacent electrodes have opposite polarities. When a driving voltage is provided throughout the first electrode to the Nth electrode, a base circumference of the first liquid is displaced to an inner circumference of the Nth electrode. N is an integer greater than or equal to 2 and smaller than M.

Description

technical field [0001] The invention relates to a driving method of a liquid lens, in particular to a driving method of a liquid lens with adjustable focal length. Background technique [0002] A liquid lens is a variable focal length lens, which includes two immiscible liquids, wherein the contact surface of the two liquids forms a predetermined axisymmetric spherical surface, and its optical behavior is similar to that of a solid lens. [0003] The current driving mode of the liquid lens is usually to apply a voltage to a single electrode group to deform the liquid-liquid interface, and adjust the focal length of the liquid lens by modulating the value of the input voltage to produce different degrees of curvature of the liquid-liquid interface. That is to say, it is known that liquid lenses are driven in an analogous manner. However, the analog driving method may cause the first liquid to be unable to precisely control the focal length modulation due to defects on the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/02
CPCG02B3/14
Inventor 蔡智伟
Owner LUSTROUS ELECTRO OPTIC