Transparent Watch Trim Coating for Precise Decorative Alignment
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Solution Overview
Problem
Existing watch exterior components, such as dials and bezels, face challenges in achieving precise alignment of thin layers due to complex decoration patterns, which affect the visual appearance and quality.
Innovation Solution
A manufacturing method involving a substrate with distinct upper and lower layers, each with different surface conditions, and through openings, ensuring precise alignment and attractive visual effects through contrasting colors and textures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If thin layers are deposited on the surface of a substrate to create decorations, then the visual appearance is enhanced, but the alignment precision between layers deteriorates
Solution Approach 1:
The substrate surface is divided into multiple zones with different surface conditions (polished areas and structured areas). Different thin layers are selectively deposited on different zones, allowing each layer to be precisely positioned on its designated surface condition, thereby maintaining alignment precision while achieving complex multi-layer decorations
Solution Approach 2:
Different portions of the substrate surface are given different local qualities (polished vs. structured surface conditions). This allows different thin layers to be deposited on surfaces with specific local properties, ensuring precise alignment and optimal visual appearance for each decorative element while maintaining overall manufacturing precision
2Illumination intensity
If the substrate surface is structured to enhance visual appearance, then the decorative effect is improved, but the manufacturing complexity increases
Solution Approach 1:
The substrate surface is pre-structured with different surface conditions (polished and structured areas) before thin layer deposition. This preliminary action creates distinct zones that guide subsequent layer deposition, simplifying the overall manufacturing process by establishing a framework that ensures precise alignment without requiring complex real-time control during deposition
Solution Approach 2:
The patent replaces complex mechanical alignment systems with a surface condition-based guidance system. By creating distinct polished and structured surface zones, the method uses surface topology rather than mechanical positioning mechanisms to guide thin layer deposition, thereby reducing manufacturing complexity while maintaining high precision
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
Enhances the precision and quality of decorative layers on watch components, providing an aesthetically appealing visual appearance with improved alignment and visibility.
Implementation Method 1
localized ablation of the base layer, in which a part of said base layer is retained on a first portion of the upper face of the substrate, said ablation being carried out so as to form at least one pocket opening onto a second portion of the upper face of the substrate and so as to structure said second portion of the upper face of the substrate
Implementation Method 2
depositing a base layer on all or part of the surface of an upper face of the substrate
Implementation Method 3
depositing a base layer on all or part of the surface of an upper face of the substrate
Data Source
Figure 1~3
Figure 4~5
AI summary
The invention relates to a casing component (10) of a watch, fashion item or jewelry item, comprising a substrate (11) made of a transparent material, said substrate (11) comprising an upper face (110) opposite an underface (111), the casing component (10) comprising a base layer (12) deposited on a first portion (1101) of the upper face (110) and at least one secondary layer (13) deposited on the base layer (12) and on a second portion (1102) of the upper face (110), the first and second portions (1101, 1102) of the upper face (110) having different surface conditions.