Online detection method for optical performance of photochromic film

A technology of photochromic film and optical performance, applied in the field of material science, can solve the problems of large factory space, difficult handling, long time required for fading, etc., to achieve the effect of taking into account the accuracy

Active Publication Date: 2022-05-31
河南银金达新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, it takes a long time to fade light, so when the above operations are carried out in the production line, if the two steps are arranged in sequence, it will take up a large factory space; if they are operated separately, it will bring difficulties such as handling

Method used

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  • Online detection method for optical performance of photochromic film
  • Online detection method for optical performance of photochromic film
  • Online detection method for optical performance of photochromic film

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] (1) Online testing equipment

[0034] The detection area includes a detection conveyor belt 4, a light source 1 located on the upper side of the detection conveyor belt, a discoloration detection camera 2, and a fading detection camera 3 located on the lower side of the detection conveyor belt.

[0035] The cut photochromic polyester film 5 is located on the conveyor belt. Preferably, the conveyor belt is provided with a static electricity generating device, which can make the conveyor belt carry static electricity, so that the film can be smoothly adsorbed on the conveyor belt, and the detection accuracy can be improved.

[0036] The light source is located on the upper side of the conveyor belt, and the number of light sources can be set according to the speed of the conveyor belt and the lighting time.

[0037] The discoloration detection camera is located on the upper side of the conveyor belt and at the end of the conveyor belt, and is used to capture the discolor...

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PUM

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Abstract

A photochromic film optical performance on-line detection method comprises the following steps: using a conveyor belt to convey a polyester film, irradiating on the upper side of the conveyor belt and collecting a color-changing image, fading on the lower side of the conveyor belt and collecting a fading image, and sending the image to an image identification model for discrimination. Therefore, the area with the optical performance not meeting the requirement in the polyester film is marked on line. The method is convenient to operate, high in precision and high in detection speed, and can meet harsh requirements of online detection of a production line.

Description

technical field [0001] The content of the invention belongs to material science, and in particular, relates to an on-line detection method for optical properties of photochromic polyester film production lines. Background technique [0002] With the continuous development of science and technology and the progress of human society, people's requirements for material materials are also increasing. Among various new materials, photochromic materials are favored by researchers because of their reversible color changes under the irradiation of excitation light. It has huge application prospects in the fields of optical information storage, large-area data display, smart glass and military anti-counterfeiting. [0003] Photochromism is a product that changes into another color through a series of chemical reactions when a compound is irradiated by light of a certain wavelength; its absorption spectrum changes significantly due to the change of the molecular structure or electron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T1/00G06T7/90
CPCG06T7/0004G06T1/0007G06T7/90G06T2207/10024
Inventor 张启纲李沅鸿李海良陈宝同吴齐蔡文彬
Owner 河南银金达新材料股份有限公司
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