Transparent Composite Laminate Diffuse Reflection Manufacturing
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Solution Overview
Problem
Existing methods for manufacturing transparent layered elements with diffuse reflection are complicated by the need for specific surface treatments and compatibility issues between substrates and dielectric layers, limiting the number of suitable combinations and increasing production costs.
Innovation Solution
A composite laminate comprising an organic polymeric support, a dielectric layer, and a transparent organic polymeric substrate, where the dielectric layer has a higher refractive index than the substrate and adhesive energy differences allow for the transfer of the dielectric layer from the support to the substrate, simplifying the manufacturing process and avoiding the need for dedicated methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specific surface treatment operations are performed on substrates to enable dielectric layer deposition, then the diffuse reflection effect is achieved, but the manufacturing process becomes more complicated and production costs increase
Solution Approach 1:
The patent applies preliminary action by pre-texturing the substrate surface before dielectric layer deposition. The substrate is texturized upstream of the assembly method, creating a rough or textured interface that enables diffuse reflection. This preliminary surface treatment allows the dielectric layer to be deposited on a already-prepared surface, simplifying the overall manufacturing process by combining multiple steps into a standardized sequence.
Solution Approach 2:
The manufacturing process is segmented into distinct independent steps: substrate texturing, dielectric layer deposition, and final assembly. This segmentation allows each operation to be optimized separately and performed by different equipment, reducing process complexity. The texturing operation can be performed on mineral glass substrates using chemical attack or hot embossing, while organic substrates undergo hot or cold embossing, with each step being independently controllable.
2Reliability
If a limited number of substrate/dielectric layer combinations are used to ensure compatibility, then deposition problems are avoided, but the versatility of the manufacturing method is reduced
Solution Approach 1:
The patent achieves universality by developing a standardized assembly method that can process multiple substrate types (mineral glass and organic substrates) through common texturing and deposition operations. The texturing operations are adapted to each substrate type but follow the same general procedure, and the dielectric layer deposition method works across different substrate materials. This universal approach allows freedom in substrate choice while maintaining process compatibility.
Solution Approach 2:
The patent applies parameter changes by adjusting texturing parameters (chemical attack conditions, embossing temperature and pressure) according to the specific substrate material properties. For mineral glass, chemical attack or hot embossing is used, while for organic substrates, hot or cold embossing is applied. These parameter adjustments enable the same general process to work with diverse materials, expanding versatility while maintaining reliability.
3Reliability
If high transparency and sufficient diffuse reflection are both required, then the glazing performance is optimized, but the manufacturing complexity increases due to precise control requirements
Solution Approach 1:
The patent applies local quality by creating a localized rough or textured interface at specific positions between transparent substrates, rather than treating the entire surface uniformly. This localized texturing provides the necessary diffuse reflection at the interface while maintaining high transparency in the bulk substrate materials. The textured interface is confined to specific regions where it is needed for the diffuse reflection effect, allowing precise control over the balance between transparency and diffuse reflection.
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 simplifies the manufacture of reflective transparent layered elements, increases the choice of substrate/dielectric layer combinations, and avoids modifying existing methods, while maintaining optical performance, allowing for the production of transparent elements with desired diffuse reflection properties.
Implementation Method 1
The diffuse reflection is provoked by the combination of texture and the change of refractive index at the interface between the two transparent substrates
Implementation Method 2
A reflecting layer or a layer of higher refractive index than those of the two transparent substrates can possibly disposed at the interface. The diffuse reflection is provoked by the combination of texture and the change of refractive index
Data Source
AI summary
A composite laminate makes it possible to obtain transparent layered elements with diffuse reflection that can be used in esthetic and/or antireflection glazings, or even in transparent projection screens. The composite laminate includes an organic polymeric support, a layer and a first transparent organic polymeric substrate. The dielectric layer is disposed between the support and the substrate. The dielectric layer has a refractive index greater than the refractive index of the first substrate. The adhesive energy between the dielectric layer and the support is less than the adhesive energy between the dielectric layer and the substrate.