Laminated Glass Interlayer Film Up-Conversion Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing laminated glass technologies face challenges in displaying high-contrast images while ensuring safety, particularly due to the use of ultraviolet lasers which pose safety concerns.
Innovation Solution
An interlayer film for laminated glass incorporating lanthanoid-containing inorganic fine particles with an up-conversion function, which converts long-wavelength infrared light to short-wavelength visible or ultraviolet light, eliminating the need for ultraviolet lasers and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If ultraviolet laser is used as irradiation light, then high-contrast images can be displayed, but safety problems occur
Solution Approach 1:
The patent introduces an intermediary substance (up-conversion fine particles containing lanthanoid) that converts ultraviolet light to visible light. This mediator allows the system to use safe visible light for irradiation while the particles convert it to ultraviolet for displaying high-contrast images, thus resolving the contradiction between safety and image contrast.
Solution Approach 2:
The patent changes the wavelength parameter of the irradiation light from ultraviolet to visible light range. By using visible light (which is safer) for irradiation and relying on the up-conversion property of the particles to generate ultraviolet, the system achieves both safety and high-contrast image display.
2Reliability
If inorganic fine particles with up-conversion function are dispersed in matrix material, then up-conversion function is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent uses composite materials by dispersing inorganic fine particles (containing lanthanoid) into an organic polymer matrix. This composite structure combines the up-conversion property of inorganic particles with the flexibility and processability of organic polymers, achieving both functional reliability and ease of manufacture.
Solution Approach 2:
The patent applies local quality by concentrating the up-conversion function in specific regions (where the fine particles are dispersed) rather than requiring the entire material to have uniform up-conversion properties. This allows the bulk material to maintain its ease of manufacture while localized regions provide the desired optical function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The interlayer film enables the display of high-contrast images safely by converting infrared light into visible light, thereby improving safety and image quality without using hazardous ultraviolet radiation.
Implementation Method 1
inorganic fine particles having an 'up-conversion' function of converting long wavelength light such as infrared rays to short wavelength light such as visible light or ultraviolet rays
Implementation Method 2
a phenomenon called 'multiphoton excitation' derived from the energy level difference of these elements is utilized
Data Source
AI summary
The present invention provides an interlayer film for laminated glass provided with an up-conversion function so as to be able to display high-contrast images while ensuring safety, and a laminated glass. The present invention relates to an interlayer film for laminated glass, including lanthanoid-containing inorganic fine particles having an up-conversion function and a binder resin.