Flexible near-infrared wave trapping plate and manufacturing process thereof, and method and system applied to cultural relic detection

Abstract

The invention discloses a flexible near-infrared wave trapping plate, a manufacturing process thereof and a cultural relic detection method and system, the flexible near-infrared wave trapping plate comprises a substrate and a composite film arranged on the substrate, the composite film comprises a plurality of layers of films, and the composite film is formed by materials with different refractive indexes according to an alternate multilayer film structure; the refractive indexes of the adjacent films are different; the composite film comprises a first refractive index film and a second refractive index film; the first refractive index film is a high refractive index film, and the second refractive index film is a low refractive index film. The flexible near-infrared wave trapping plate provided by the invention is independently designed and can be attached to the surfaces of various cultural relics, the characteristic peak position is selected according to the actual spectrum of the cultural relics, the requirement of measuring equipment for monitoring the cultural relics by a spectrum method is reduced, and the processing process is reliable and stable. In the use process, no harmful influence is generated on the cultural relic body, and the appearance of the cultural relic is not influenced due to the fact that the cultural relic is transparent relative to visible light; according to the invention, cultural relic monitoring can be better realized, and anti-theft and anti-damage work of cultural relics can be better promoted.

Description

technical field [0001] The invention relates to the technical field of cultural relic detection, in particular to a flexible near-infrared notch wave plate, its manufacturing process, and a method and system for cultural relic detection. Background technique [0002] In recent years, the protection of cultural relics has attracted more and more attention from the state and society, but the current situation of cultural relics protection in my country is very serious. Many cultural relics, especially ancient buildings, cave temples, stone carvings, murals, important modern historical sites and other immovable cultural relics are often It will be maliciously damaged or partially stolen, and it is extremely difficult to repair or recover. The spectral monitoring method is used to monitor the spectrum of the cultural relic body to achieve real-time monitoring of cultural relics. However, the hyperspectral camera used in this method is expensive, and the measurement of specific fre...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the protection of cultural relics has attracted more and more attention from the state and society, but the current situation of cultural relics protection in my country is very serious. Many cultural relics, especially ancient buildings, cave temples, stone carvings, murals, important modern historical sites and other immovable cultural relics are often It will be maliciously damaged or partially stolen, and it is extremely difficult to repair or recover. The spectral monitoring method is used to monitor the spectrum of the cultural relic body to achieve real-time monitoring of cultural relics. However, the hyperspectral camera used in this method is expensive, and the measurement of specific frequency bands The price of multispectral cameras is relatively low, so it is very important to study a device that can identify and monitor cultural relics in specific frequency bands

[0003] At the same time, since the spectra of many cultural relics do not have unique spectral peak positions, it is impossible to identify cultural relics through the characteristic peaks of the cultural relics when using multi-spectral monitoring of cultural relics; in addition, for cultural relics with relatively fragile materials such as wooden cultural relics, special spectrum The material also needs to be harmless to the cultural relic itself; the complex and changeable appearance of the cultural relic requires sufficient flexibility in the installation of the device without affecting the appearance of the cultural relic

Now the traditional infrared traps are based on rigid substrates, it is difficult to achieve flexible installation

In view of the above problems, the flexible near-infrared notch film applied to the special spectrum marking of cultural relics can mark the specific peak positions of cultural relics without damage to cultural relics, can be installed flexibly, and has no effect on the appearance of cultural relics. No related reports

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