Timepiece Faceplate Glittering Layer for Solar Power
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Solution Overview
Problem
Timepiece faceplates equipped with solar batteries face challenges in achieving both adequate light permeability and aesthetic appeal, particularly in maintaining a sense of luxury and preventing the solar battery's circuit from being visible.
Innovation Solution
A timepiece faceplate with a glittering layer where metallic oxide powder, laminated on one surface of a light-permeable base material, is dispersed in a light-permeable resin, offering a balance between light transmissivity and glittering properties, ensuring the faceplate does not block the solar battery's generating efficiency while providing an excellent aesthetic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light permeable materials such as plastic, ceramic, or glass are used for the timepiece faceplate, then adequate light permeability is achieved to generate sufficient electromotive force for the solar battery, but the aesthetic appearance and sense of luxury are compromised compared to metallic materials
Solution Approach 1:
The invention uses a composite structure combining a light permeable base material (plastic, ceramic, or glass) with metallic oxide powder particles. This composite approach allows the faceplate to maintain both light permeability for solar battery function and aesthetic appearance through the metallic oxide glittering effect, resolving the contradiction between functional light transmission and decorative metallic appearance.
Solution Approach 2:
The invention applies metallic oxide powder selectively to create localized glittering regions on the faceplate surface. By controlling the distribution and concentration of metallic oxide particles in specific areas, the faceplate achieves enhanced aesthetic appearance in those regions while maintaining overall light permeability for the solar battery function.
2Shape
If a layer made by powder and hardened resin is formed on the faceplate surface to achieve glittering property, then aesthetic appearance is improved, but adequate light permeability cannot be secured when formed in a broad area
Solution Approach 1:
The invention optimizes the particle size parameters of metallic oxide powder (average grain diameter of 10 to 90 μm) and controls the concentration and distribution of these particles in the faceplate material. By carefully adjusting these parameters, the glittering effect is enhanced while the light permeability is maintained at adequate levels for solar battery operation.
Solution Approach 2:
The invention creates localized glittering regions by controlling the distribution of metallic oxide powder particles rather than uniformly distributing them throughout the entire faceplate. This localized approach allows glittering properties to be enhanced in specific areas while maintaining light permeability in regions where the powder concentration is lower.
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 solution achieves appropriate light permeability and glittering properties, enhancing the aesthetic appeal of the timepiece faceplate without compromising the solar battery's generating efficiency, allowing for a luxurious appearance and adjustable transmissivity.
Implementation Method 1
the surface refraction index of the glittering powder becomes high
Implementation Method 2
the degree of reflection is improved so that the glittering property is obtained
Implementation Method 3
receive increased recognition from the viewpoints of the easiness of maintenance and the natural resources saving
Data Source
AI summary
To provide a timepiece faceplate having appropriate light permeability with excellent aesthetic appearance having glittering property, and an electrical timepiece equipped with a solar battery, a timepiece faceplate of the invention includes a faceplate main body that has light permeability, and a glittering layer that is provided on either one of a front surface side and a back surface side of the faceplate main body and is configured by dispersing a glittering powder into a light permeable resin. The glittering powder is configured by laminating a metallic oxide film above one surface side of a plate shaped base material, which has light permeability, and the glittering powder is a lamination powder that an average grain diameter is more than 10 μm and less than 90 μm.