Decoration Panel Rear Surface Microstructures for Dynamic Light Patterns
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Solution Overview
Problem
Conventional decoration panels for vehicles and furniture are thick, costly, and lack variation in light reflection, making them unsuitable for interior decoration and not attractive enough for automobile interiors.
Innovation Solution
A decoration panel with a transparent base member featuring small, three-dimensionally shaped reflection portions that cause irregular changes in light brightness and chromatic aberrations through reflection, interference, and diffraction, mimicking the effect of sunlight passing through trees, using a 1/f fluctuation in the concave boundary surfaces to create an attractive and soothing light pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional decoration panel uses a cover and mount base member with space between them, then light reflection and depth effect are achieved, but the panel has large thickness and high cost
Solution Approach 1:
The patent combines the cover and mount base member into a single integrated panel structure, eliminating the space between them. The reflection portions are formed directly on the rear surface of the panel, merging what were previously separate components into one unified structure, thereby reducing thickness while maintaining optical effects.
Solution Approach 2:
The invention transitions from a multi-component three-dimensional assembly to a single-layer two-dimensional panel structure. By forming reflection portions on the rear surface of a single panel, the solution reduces the third dimension (thickness) while preserving the light reflection functionality through surface geometry modifications.
2Illumination intensity
If a conventional decoration panel uses multiple components, then light reflection effect is achieved, but the number of components increases cost
Solution Approach 1:
The patent merges multiple components (cover and mount base member) into a single integrated panel, reducing the number of parts that need to be manufactured, assembled, and inventoried. This consolidation directly reduces manufacturing cost while maintaining the light reflection effect through the integrated reflection portions.
3Illumination intensity
If a conventional decoration panel uses concave mirrors for light reflection, then light collection is achieved, but the reflection pattern lacks variation and is not attractive
Solution Approach 1:
The patent applies local quality by creating reflection portions with varying shapes, sizes, and depths at different locations on the panel rear surface. Rather than using uniform concave mirrors, the reflection portions have diverse local characteristics that produce varied light reflection patterns, enhancing visual attractiveness while maintaining light collection efficiency.
Solution Approach 2:
The invention introduces asymmetry by forming reflection portions with non-uniform, irregular shapes rather than symmetric concave mirrors. The varying geometries of the reflection portions create asymmetric light reflection patterns that are more visually interesting and attractive, breaking the monotony of uniform reflection spots.
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 panel provides a visually appealing, varied light decoration that soothes and relaxes the viewer by generating an irregularly changing light-dark pattern, suitable for automobile interiors and other applications.
Implementation Method 1
the small reflection portions each having a boundary surface capable of causing reflection, interference, and diffraction of incident light impinging onto the base member
Implementation Method 2
the small reflection portions each having a boundary surface capable of causing reflection, interference, and diffraction of incident light impinging onto the base member
Implementation Method 3
the small reflection portions each having a boundary surface capable of causing reflection, interference, and diffraction of incident light impinging onto the base member
Data Source
AI summary
A large number of small reflection portions are continuously formed over a back face of a base member opposite the light impinging side, in an arbitrary arrangement. The small reflection portions are each formed to have a boundary surface for reflection, interference, and diffraction of incident light impinging onto the base member, to thereby produce random changes in the brightness of reflection light over the entirety of the decoration panel. The small reflection portions have concave boundary surfaces having three-dimensional shape determined though imparting a 1/f fluctuation to a triangular-roof-like basic shape. When at least one of the direction of the incident light in relation to the base member, a viewing point in relation to the base member, and the position of the base member is changed, the small reflection portions generate an irregularly changing light-dark pattern in the brightness of reflection right from the small reflection portions.