Layered Vehicle Lamp Dot Pattern to Prevent Moire
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Solution Overview
Problem
Vehicle lamps with light transmissive areas of minute dot shapes suffer from moire interference, which degrades design quality and makes it difficult to recognize the light chamber configuration.
Innovation Solution
A vehicle lamp design featuring a first plate material with smaller light transmissive areas and a second plate material with larger light transmissive areas, where the second plate material's areas are layered on the first, and the distance between non-transmissive areas is set to prevent moire generation, enhancing design recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If minute dot-shaped light transmissive areas are formed in both plate materials to improve design aesthetics, then design quality is improved, but moire interference occurs degrading the design quality
Solution Approach 1:
The patent applies asymmetry by making the light transmissive areas of the first plate material and second plate material different in size. Specifically, the light transmissive areas of one plate are larger than those of the other plate, breaking the symmetry that causes moire interference while maintaining the decorative dot pattern aesthetic.
Solution Approach 2:
The patent applies local quality by creating different characteristics in different regions of the plate materials. The first plate material has light transmissive areas of one size, while the second plate material has light transmissive areas of a different size, allowing each local region to contribute differently to the overall light transmission pattern and preventing uniform interference.
2Loss of information
If minute dot-shaped light transmissive areas are formed in both plate materials, then it becomes difficult to recognize the light chamber configuration, but moire interference occurs that degrades design quality
Solution Approach 1:
By making the light transmissive areas asymmetric in size between the two plate materials, the patent prevents the formation of regular interference patterns while still maintaining the dot pattern appearance that obscures the light chamber configuration, thus achieving both objectives simultaneously.
3Ease of manufacture
If light transmissive areas of the same size are used in both plate materials, then manufacturing is simplified, but moire interference occurs
Solution Approach 1:
The patent changes the parameter of light transmissive area size between the two plate materials. By making the areas of one plate larger or smaller than those of the other plate, the patent eliminates moire interference while maintaining relative manufacturing simplicity through consistent fabrication processes.
Data Source
AI summary
A vehicle lamp suppressing design deterioration due to moire is provided. The vehicle lamp includes: a first plate material including a plurality of first light transmissive areas transmitting light therethrough and a first light non-transmissive area positioned between the plurality of first light transmissive areas and not transmitting light therethrough; a second plate material including a plurality of second light transmissive areas transmitting light therethrough and a second light non-transmissive area positioned between the plurality of second light transmissive areas and not transmitting light therethrough, the second plate material being layered on the first plate material; and a light source that emits light via the plurality of first light transmissive areas of the first plate material and the plurality of second light transmissive areas of the second plate material, where the plurality of second light transmissive areas are larger, in acreage, than the plurality of first light transmissive areas.