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Air pressure driven cavity type flexible color-changing film and method

A color-changing film, air pressure-driven technology, applied in optical components, instruments, optics, etc., can solve the problems of unstable performance, single color change, slow color change speed, etc., to achieve simple structure and principle, eliminate exposure characteristics, and respond quickly. Effect

Pending Publication Date: 2022-05-24
中国人民解放军军事科学院国防工程研究院工程防护研究所
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Problems solved by technology

[0003] Aiming at technical problems such as slow discoloration speed, unstable performance, and single color change that are difficult to solve in existing visible light discoloration materials, the present invention proposes an air pressure-driven cavity-type flexible discoloration film and its method

Method used

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  • Air pressure driven cavity type flexible color-changing film and method
  • Air pressure driven cavity type flexible color-changing film and method
  • Air pressure driven cavity type flexible color-changing film and method

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Embodiment Construction

[0034] like figure 1 , 2 , 3, 4, and 5, a pneumatically driven chamber type flexible color-changing film, including an upper PMMA plate 101, a colored liquid chamber 102, an elastic film 105 between the two chambers, a colorless gas chamber 106, Dichroic layer, inter-color PMMA plate, bottom layer, lower layer PMMA plate 110, colorless gas control system device and colored liquid cavity color-changing film device. The colored liquid chamber is connected with the microfluidic control system device; the colored liquid chamber 102 is connected with the elastic film 105 between the two chambers, and the elastic film 105 between the two chambers is in contact with the colorless gas chamber 106. connect.

[0035] By adjusting the compressed air gas driving device, the colorless gas is filled into the air cavity of the lower layer of the cavity-type color-changing film, so as to squeeze the deformation of the colored film to complete the color change of the film; the microfluidic d...

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Abstract

The invention provides an air pressure driven containing cavity type flexible color-changing film which comprises a colored liquid containing cavity, an elastic film between the two containing cavities and a colorless gas containing cavity, and the colored liquid containing cavity is connected with a micro fluid control system device; the colored liquid containing cavity is connected with the elastic film between the two containing cavities, the elastic film between the two containing cavities is connected with the colorless gas containing cavity, the colorless gas containing cavity is connected with the air pump device, a certain amount of colorless gas is sucked out of the gas containing cavity, the elastic films deform towards the gas containing cavity side, the size of the liquid containing cavity is increased, and the pressure is reduced. The colored liquid is sucked in, and the film liquid cavity deforms, so that the color of the film is changed; according to the invention, liquid with different colors is introduced into the accommodating cavity to realize automatic color change of the film surface, and in the whole process, the micro-control system drives the colorless gas accommodating cavity to expand and compress to regulate and control colored microfluid to flow into or out of the transparent accommodating cavity in the film, so that the function of changing the color of the film is realized.

Description

technical field [0001] The invention relates to the technical field of color-changing films, in particular to a pressure-driven cavity-type flexible color-changing film and a method thereof. Background technique [0002] The traditional visible light discoloration method is to paint the surface of the object with a camouflage color consistent with the background color or cover the surface of the object with a discoloration net. Although these means are relatively simple to implement, the stealth effect is only suitable for stationary targets or when the target moves against a background with little change, thus affecting the mobility of robots or stealth devices. In order to overcome the shortcomings of traditional color-changing technology, researchers are actively exploring and studying dynamic stealth technology based on "smart" color-changing materials to adapt to the surrounding complex and changeable background environment. At present, thermochromic, photochromic and ...

Claims

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Application Information

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IPC IPC(8): G02B5/24G02B26/00
CPCG02B5/24G02B26/004G02B26/007
Inventor 杨大峰胡玮寇钢刘国权马栋良李松晶陈昌兵
Owner 中国人民解放军军事科学院国防工程研究院工程防护研究所
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