Colored Glass with High Refractive Index Ions for Optical Density
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Solution Overview
Problem
Existing glass technologies face challenges in achieving a desired optical density (OD) in colored layers while maintaining a small thickness, which can result in a non-sharp shape and increased thickness of the colored layer, affecting optical properties and applications.
Innovation Solution
Incorporating specific glass components such as Sb ions, As ions, Sn ions, and Ce ions in amounts ranging from 0.075% to 1.00% cation %, along with Bi ions, to create a colored layer with a refractive index of 1.70 or more, ensuring a significant difference in transmittance between the colored and non-colored portions, thereby achieving a desired OD with improved sharpness and reduced thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of the colored layer is increased to achieve desired optical density, then the optical density improves, but the shape of the colored layer becomes less sharp and the thickness increases
Solution Approach 1:
The patent changes the chemical composition parameters of the glass by incorporating specific cations (Sb, As, Sn, or Ce ions at 0.075-1.00% cation%, and Bi ions at 0.05-0.50% cation%) to enhance the optical density per unit thickness. This allows achieving the desired OD with reduced thickness, thereby maintaining sharp shape definition without excessive thickening of the colored layer.
2Reliability
If the thickness of the colored layer is increased to achieve desired optical density, then the optical density improves, but the thickness of the colored layer increases
Solution Approach 1:
The patent modifies the glass composition by adding specific cations that enhance light absorption efficiency. This parameter change allows the colored layer to achieve higher optical density at reduced thickness, directly resolving the contradiction between achieving desired OD and minimizing layer thickness.
3Reliability
If glass components are added to enhance optical density, then the optical density improves, but the manufacturing complexity increases
Solution Approach 1:
The patent introduces specific cations (Sb, As, Sn, Ce, Bi ions) at controlled concentrations to create localized optical properties within the glass matrix. This targeted addition of components with specific functions allows enhancing optical density while maintaining manageable manufacturing complexity through precise compositional control.
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
This approach allows for the attainment of a desired optical density in the colored layer with a small thickness, enhancing the sharpness of the shape and reducing transmittance, while preventing excessive coloration or platinum elution, thus improving the glass's optical and decorative properties.
Implementation Method 1
the glass contains one or more glass components selected from the group consisting of Sb ions, As ions, Sn ions, and Ce ions in an amount of 0.075 cation % or more
Implementation Method 2
wherein Bi ions are contained as the glass component... wherein a refractive index is 1.70 or more
Data Source
AI summary
Glass comprising a colored layer, wherein the glass contains one or more glass components selected from the group consisting of Sb ions, As ions, Sn ions, and Ce ions in an amount of 0.075 cation % or more.