Light Irradiating Module With Protruding Wiring Patterns
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Solution Overview
Problem
The existing configuration of ultraviolet light irradiating devices with LED elements arranged in a staggered manner on a board results in non-uniform light intensity, particularly when the irradiation target does not move at a constant speed, leading to uneven curing of ultraviolet curable inks or resins.
Innovation Solution
A light irradiating module is designed with a board having alternating first and second wiring patterns with protruding parts, allowing LED elements to be densely arranged in a square lattice, ensuring uniform light intensity across the board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If LED elements are arranged in a staggered manner with intervals to allow wire connections, then device complexity is reduced, but illumination intensity uniformity deteriorates
Solution Approach 1:
The patent transitions from a one-dimensional staggered arrangement to a two-dimensional grid arrangement of LED elements. This dimensional change allows wires to connect to protruding parts at multiple locations without requiring long wire runs, maintaining low complexity while achieving uniform light distribution across the entire irradiation area through the dense two-dimensional layout.
Solution Approach 2:
The patent introduces protruding parts at specific locations where wiring patterns intersect, creating localized connection points. This allows wires to be connected only at these predetermined protruding parts rather than requiring complex routing between all LED elements, simplifying the wiring structure while maintaining uniform illumination through the regular grid pattern.
2Illumination intensity
If the number of LED elements is increased and arrangement interval is narrowed to improve light uniformity, then illumination intensity uniformity improves, but device complexity increases
Solution Approach 1:
By arranging LED elements in a two-dimensional grid pattern with protruding parts at regular intervals, the patent achieves dense coverage for uniform illumination without requiring complex wire routing. The protruding parts provide multiple access points for wire connections, reducing the complexity of connecting a large number of LED elements.
Solution Approach 2:
The patent segments the wiring structure into multiple independent wire paths that connect to different rows and columns of protruding parts. This segmentation allows each wire to serve multiple LED elements without interfering with other wires, reducing overall wiring complexity even as the number of LED elements increases.
3Ease of manufacture
If LED elements are thinned out in wiring direction to allow wire connections, then ease of manufacture improves, but illumination intensity uniformity deteriorates
Solution Approach 1:
The patent creates localized protruding parts at specific positions where wiring is needed, rather than thinning out LED elements throughout the entire structure. This allows easy wire connection at these localized points while maintaining the full density of LED elements in the two-dimensional grid, ensuring uniform illumination without compromising manufacturing ease.
Solution Approach 2:
The transition to a two-dimensional grid arrangement with protruding parts provides multiple locations for wire connections across the irradiation area. This eliminates the need to thin out LED elements in the wiring direction, as wires can access LED elements from multiple directions in the two-dimensional layout, maintaining both manufacturing ease and illumination uniformity.
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 proposed configuration achieves uniform ultraviolet light intensity, preventing uneven curing of inks or resins, even when the irradiation target moves unpredictably, while also reducing the number of LED elements connected in parallel, thus minimizing power consumption.
Implementation Method 1
a plurality of LED elements which are disposed on the plurality of wiring patterns and emit light in a third direction orthogonal to the first direction and the second direction
Data Source
AI summary
A light irradiating module comprises: a board; a plurality of wiring patterns which are formed on the board; and a plurality of LED elements which are disposed on the plurality of wiring patterns. The plurality of wiring patterns include: first wiring patterns each of which has a first straight part and a plurality of first protruding parts protruding from the first straight part; and second wiring patterns each of which has a second straight part and a plurality of second protruding parts protruding from the second straight part. The first wiring patterns and the second wiring patterns are disposed alternately, the plurality of first protruding parts and the plurality of second protruding parts adjacent thereto are aligned alternately, and the plurality of LED elements are disposed on the first protruding parts and the second protruding parts.