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Low piezoelectric and temperature interference flexible pyroelectric infrared thermal imager pixel array

A technology of pyroelectric infrared and pixel array, which is applied in the field of infrared thermal imaging cameras, can solve the problems of reduced imaging quality of infrared thermal imaging cameras, and achieve the elimination of interference from external environmental vibration and temperature fluctuations, good symmetry and stability, The effect of easy elimination

Active Publication Date: 2018-11-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a low-voltage and temperature-interference flexible pyroelectric infrared camera pixel array, which solves the problem of infrared thermal imaging caused by environmental vibration and temperature fluctuations in existing flexible pyroelectric infrared cameras. The problem of image quality degradation

Method used

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  • Low piezoelectric and temperature interference flexible pyroelectric infrared thermal imager pixel array
  • Low piezoelectric and temperature interference flexible pyroelectric infrared thermal imager pixel array
  • Low piezoelectric and temperature interference flexible pyroelectric infrared thermal imager pixel array

Examples

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Effect test

Embodiment 1

[0070] The method for manufacturing the pixel array of the flexible pyroelectric infrared camera with low voltage and temperature interference includes the following steps:

[0071] Step 1: Dissolve the flexible pyroelectric polymer completely into a solution, and then evenly cover the solution on the flat substrate, and then bake it in a constant temperature box until the solvent is completely volatilized, and the flexible pyroelectric polymer forms a sensitive film, and then Peel off the sensitive film to obtain a 20mm×20mm flexible pyroelectric polymer film;

[0072] Step 2: Prepare the same thickness on the surface of the obtained flexible pyroelectric polymer film with the internal polarization direction of 20mm×20mm by evaporation and sputtering, such as image 3 As shown in the metal pixel electrode array in a 4×4 matrix, an identical 4×4 matrix metal pixel electrode array is set on the other surface of the film;

[0073] Step 3: Use silicon materials to prepare adiaba...

Embodiment 2

[0078] The method for manufacturing the pixel array of the flexible pyroelectric infrared camera with low voltage and temperature interference includes the following steps:

[0079] Step 1: Dissolve the flexible pyroelectric polymer completely into a solution, and then evenly cover the solution on the flat substrate, and then bake it in a constant temperature box until the solvent is completely volatilized, and the flexible pyroelectric polymer forms a sensitive film, and then Peel off the sensitive film to obtain a 20mm×20mm flexible pyroelectric polymer film;

[0080] Step 2: Prepare the same thickness on the surface of the obtained flexible pyroelectric polymer film with the internal polarization direction of 20mm×20mm by evaporation and sputtering, such as image 3 In the shown metal pixel electrode array in a 4×4 matrix, a planar electrode is arranged on the other surface of the film;

[0081] Step 3: Prepare a cross-sectional area of ​​1mm with silica material 2 , a he...

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Abstract

The invention discloses a low piezoelectric and temperature interference flexible pyroelectric infrared thermal imager pixel array, and relates to the infrared thermal imager field; the structure comprises an upper flexible pyroelectric polymer film used for detecting and imaging and a lower flexible pyroelectric polymer film used for making compensation, and a bottom support layer on the bottom;the upper flexible pyroelectric polymer film top surface is provided with a pixel electrode array, and the lower surface is provided with a pixel electrode array that is identical with the pixel electrode array on the top surface; the lower flexible pyroelectric polymer film top surface is provided with a pixel electrode array that is identical with the pixel electrode array on the top surface ofthe upper flexible pyroelectric polymer film, and the lower surface is provided with a pixel electrode array that is identical with the pixel electrode array on the top surface. When an existing flexible pyroelectric infrared thermal imager receives environment vibration and temperature fluctuation, the imaging quality of the infrared thermal imager can be reduced; the structure of the invention can solve said problems.

Description

technical field [0001] The invention relates to the field of thermal imaging cameras, in particular to a pixel array of flexible pyroelectric thermal imaging cameras with low voltage and temperature interference. Background technique [0002] Infrared cameras based on pyroelectric materials have the advantages of fast response speed, wide response wavelength, and relatively low manufacturing cost. Traditional pyroelectric infrared cameras use rigid ferroelectric ceramics or ferroelectric crystals as sensitive materials, so the structure is rigid and difficult to process. However, flexible pyroelectric infrared cameras based on ferroelectric polymers not only have traditional thermal The advantages of the discharge infrared thermal imaging camera also have the advantages of light weight, flexibility, impact resistance, corrosion resistance, and easy processing, and have great application prospects in the field of artificial skin. [0003] However, due to the piezoelectric ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/12
CPCG01J5/12G01J2005/0077G01J2005/123
Inventor 黎威志高若尧张天杜晓松太惠玲于贺
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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