Scuff Plate with Grooved Light Guide and Half Mirror for Distinct Character Display
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Solution Overview
Problem
Existing scuff plate technologies face challenges in achieving high visibility and a superior decorative effect, particularly in displaying characters or figures with clear contours and distinct boundaries between luminous and non-luminous sections, especially when transitioning between illuminated and non-illuminated states.
Innovation Solution
A scuff plate design featuring a first light guide element with a groove-shaped character section, a light emission unit emitting light of a different color, and a half mirror layer between the light guide element and the light emission unit, allowing for reflective diffusion and distinct color illumination of the character and background, enhancing visibility and decorative effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the entire underside of the light guide plate is printed in white to illuminate the character, then the character visibility is improved, but the decorative effect and uniformity of illumination are worsened
Solution Approach 1:
The light guide plate is divided into multiple sections: a first light guide element for character illumination and a second light guide element for background illumination. This segmentation allows different illumination strategies for different functional areas, enabling uniform character illumination without over-illuminating the entire plate.
Solution Approach 2:
Different regions of the light guide plate are assigned different optical properties. The first light guide element has its underside printed in white for efficient light reflection and character illumination, while the second light guide element has a translucent or transparent appearance for background illumination. This local differentiation optimizes both character visibility and overall uniformity.
2Ease of manufacture
If a punched character plate is used to display characters, then the character display function is achieved, but the contour clarity and boundary definition are worsened
Solution Approach 1:
Grooves with curved cross-sections are formed in the first light guide element instead of simple punched holes. These grooves have light-reflective inner surfaces that guide and diffuse light uniformly across the character area, producing sharp, well-defined contours. The curved geometry of the grooves enhances light distribution compared to flat punched areas.
3Device complexity
If a single light source color is used for illumination, then the device simplicity is maintained, but the decorative effect and visual appeal are worsened
Solution Approach 1:
The illumination system is segmented into two independent light sources: a first light source for character illumination and a second light source for background illumination. This allows each light source to be optimized for its specific function and to emit different colors, creating enhanced decorative effects while maintaining manageable system complexity.
Solution Approach 2:
The first light source and second light source emit light of different colors. The first light source illuminates the character in one color while the second light source illuminates the background in a different color, creating striking color contrast and enhanced visual appeal. This color differentiation is a key decorative feature of the invention.
4Illumination intensity
If the light guide plate is made fully translucent for uniform illumination, then the background visibility is improved, but the character contour definition and metallic appearance are worsened
Solution Approach 1:
The light guide plate is divided into a first light guide element for characters and a second light guide element for background. The first element can be opaque or translucent with grooves for character definition, while the second element is translucent or transparent for background visibility. This segmentation allows both character definition and background visibility to be optimized simultaneously.
Solution Approach 2:
Different optical properties are assigned to different regions: the first light guide element has properties optimized for character display (grooves, selective translucency), while the second light guide element has properties optimized for background illumination (higher translucency). This local differentiation resolves the contradiction between character definition and background visibility.
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 design achieves a clear and decorative luminous display with high visibility and a metallic appearance in non-luminous states, providing a surprising design change and a luxurious aesthetic by utilizing reflective diffusion and color contrast.
Implementation Method 1
Light from the first light source is guided into the first light guide element
Implementation Method 2
guided light undergoes reflective diffusion at the character section
Implementation Method 3
guided light undergoes reflective diffusion at the character section
Implementation Method 4
external light is reflected by the half mirror layer
Implementation Method 5
a light emission unit that is disposed below the first light guide element and that upwardly emits light differing in color from the first light source
Data Source
AI summary
A scuff plate has a first light guide element having a groove of predetermined shape formed in an underside of the element when viewed from below, a first light source that guides light to the first light guide element, light emission unit that is disposed below the first light guide element and that upwardly emits light differing in color from the first light source, and a half mirror layer interposed between the first light guide element and the light emission unit. Light from the first light source is guided to the first light guide element, and the guided light undergoes reflective diffusion at the groove (a character section). As a consequence, a desired character, or the like, is luminously displayed. In the meantime, light generated by the light emission unit exits through the first light guide element, whereupon an area (a background area) other than the groove (the character section) is illuminated in color that differs from the color of light from the first light source.