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Liquid lens array capable of discretely zooming and method for manufacturing same

A technology of liquid lens and manufacturing method, applied in the direction of lens, optics, instrument, etc.

Inactive Publication Date: 2011-11-09
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the realization of the liquid lens array is still limited to the patchwork of a single liquid lens system, and there is no integrated production method; at the same time, the focal length change of each liquid lens is Consistent, failing to implement separate zoom functions for each lens in the array

Method used

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  • Liquid lens array capable of discretely zooming and method for manufacturing same
  • Liquid lens array capable of discretely zooming and method for manufacturing same
  • Liquid lens array capable of discretely zooming and method for manufacturing same

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Such as image 3 , as shown in 8, the liquid lens array of the present invention that can be separated and zoomed is coated with a layer of transparent conductive film (such as ITO film) 22 as the first electrode on the glass substrate 21, and makes it into a certain discrete by the method of photolithography. A mesh-like distribution with pins, on which a layer of hydrophobic insulating medium 23 is coated, and a mesh-like distribution corresponding to the shape of the first electrode is made on the insulating medium, and the transparent conductive film. Inject a non-volatile insulating liquid 24 into the hole, and deposit a layer of transparent paralene elastic film 25 on the liquid by chemical vapor deposition to encapsulate the liquid in a closed space and control the Parylene The thickness of the forest film 25 makes it have proper elastic...

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Abstract

The invention relates to a liquid lens array capable of discretely zooming and a method for manufacturing the same. The method comprises the following steps: coating a layer of transparent conducting film serving as a first electrode on a glass substrate of the lens array and discretely distributing the transparent conducting film in a form of mesh openings with pins through photo-etching; coating a layer of hydrophobic insulating medium on the glass substrate and forming mesh opening distribution corresponding to the shape of the first electrode so as to expose the first electrode below the insulating medium; injecting nonvolatile insulating liquid into the openings, depositing a layer of transparent Parylene elastic membrane on the liquid and encapsulating the liquid in an enclosed space; and coating a layer of transparent conducting membrane serving as a second electrode on the Parylene membrane. The liquid lens array has the characteristics of compact structure, wide zooming range, high efficiency, wide selection range of filled liquid, electric control, easy array manufacturing, capability of making each lens unit in the array discretely zoom, simple manufacturing method and high efficiency. The device is widely used in the aspects of high-resolution, large visual field, high field depth, three-dimensional imaging and the like.

Description

technical field [0001] The invention relates to a liquid lens array technology, in particular to a liquid lens array capable of discrete zooming. Background technique [0002] The existing liquid lens technology is mainly divided into two types, one is based on the electrowetting effect, and the other is based on changing the pressure to control the curvature of the liquid surface. Among them, the more mature form is the electrowetting liquid lens. [0003] Electrowetting liquid lens ( figure 1 ) using two mutually incompatible liquids, one of which is an electrolyte and the other an insulating liquid, which includes a first base glass plate 121, a second base glass plate 122, a first metal electrode 123, a second metal electrode 124 , hydrophobic insulating layer 125 , electrolyte liquid 126 . By applying different voltages to change the contact angle between the two liquids and the solid container, thereby changing the radius of curvature of the interface between the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/02G02B3/14
Inventor 张薇庄松林杨波
Owner UNIV OF SHANGHAI FOR SCI & TECH
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