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Electrowetting zoom lens based on ion liquid

A technology of ionic liquid and zoom lens, which is applied in the field of micro-optics, can solve the problems of inability to use near-infrared imaging and limited range of use

Inactive Publication Date: 2012-05-23
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because water has a strong absorption effect on near-infrared rays between 0.9 and 1.1 μm, liquid lenses made using aqueous solutions of inorganic salts as conductive liquids cannot be used for near-infrared imaging.
Based on the above reasons, the use of an aqueous solution of inorganic salts as a liquid lens made of a conductive liquid is greatly limited in its scope of use.

Method used

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  • Electrowetting zoom lens based on ion liquid
  • Electrowetting zoom lens based on ion liquid
  • Electrowetting zoom lens based on ion liquid

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Select 1-ethyl-3-methylimidazole perchlorate ([EMIm][ClO 4 ]) as a conductive liquid. A mixed solution of 82% by mass of n-dodecane and 18% by mass of 1,6-dibromo-n-hexane is selected as the filling liquid. The liquid used for the liquid lens is made by mixing the conductive liquid and the filling liquid in a ratio of 1:2.

[0040] Embed the metal electrode on the shell, deposit a layer of parylene insulating film on the metal electrode by chemical vapor deposition, and apply Dupont's hydrophobic material Teflon AF1600 on the insulating material parylene by drop coating , Both the transparent top cover and the transparent bottom cover use quartz glass, and a layer of ITO transparent conductive film is coated on the bottom cover glass by vacuum sputtering as a flat electrode. The above-mentioned treated shell was connected to the transparent bottom cover coated with ITO, and filled with 1-ethyl-3-methylimidazole perchlorate ([EMIm][ClO 4 ]) and n-dodecane added with 1...

Embodiment 2

[0051] Select 1-ethyl-3-methylimidazole perchlorate ([EMIm][ClO 4 ]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF 4 ]) A mixed liquid with a volume ratio of 1:1 is used as a conductive liquid. A mixed solution of 82% by mass of n-dodecane and 18% by mass of 1,6-dibromo-n-hexane is selected as the filling liquid. The liquid used for the liquid lens is made by mixing the conductive liquid and the filling liquid in a ratio of 1:2.

[0052] Embed the metal electrode on the shell, deposit a layer of parylene insulating film on the metal electrode by chemical vapor deposition, and apply Dupont's hydrophobic material Teflon AF1600 on the insulating material parylene by drop coating , Both the transparent top cover and the transparent bottom cover use quartz glass, and a layer of ITO transparent conductive film is coated on the bottom cover glass by vacuum sputtering as a flat electrode. The above-mentioned treated shell was connected to the transparent bottom cover...

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Abstract

The invention discloses an electrowetting zoom lens based on ion liquid, comprising a cylindrical shell, a metal electrode, a transparent electrode, an insulating membrane, a hydrophobic membrane, a glass top cover, a glass bottom cover, conducting liquid and filling liquid, wherein the conducting liquid can be one or two or combination of a plurality of ion liquids. Beside having the advantages of general zoom liquid lenses, the electrowetting zoom lens based on ion liquid further has the advantages of lower voltage required for implementing focusing, capability of regulating focal length change range through changing the type of the ion liquid, capability of adapting to drastic change of external temperature, and extreme conditions, such as low temperature, high temperature and the like, capability of being applied to near-infrared imaging and the like.

Description

technical field [0001] The invention belongs to the field of micro-optics technology, and relates to a liquid electrowetting zoom lens using ionic liquid as a conductive liquid, in particular to a liquid electrowetting zoom lens that can be used under harsh conditions such as low temperature, high temperature, and vacuum, and can adapt to drastic changes in external environment temperature. A liquid zoom lens that can be used in both common imaging systems and near-infrared imaging. Background technique [0002] Zoom lenses play a very important role in optical systems. In recent years, with the development of optical communication technology and the increasing demand for portable camera devices, the demand for miniature zoom lenses has also increased. The micro-lens currently on the market is mainly a small traditional mechanical movement lens, which uses glass or plastic to obtain a small lens through injection molding, and then integrates the small lens into a position-a...

Claims

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Application Information

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IPC IPC(8): G02B3/14G02B26/02
Inventor 邓友全胡晓东张晓萍张世国张庆华马祥元卢六斤何昱德曲超
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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