Circular Light-Emitting Element Mounting via Radial Segmentation
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Solution Overview
Problem
Conventional lighting devices face challenges in evenly mounting light-emitting elements within a circular mounting area to maximize the number of elements while maintaining even spacing and preventing overlapping, which affects light emission efficiency and reliability.
Innovation Solution
A method of arranging light-emitting elements at the centers of equal smaller circular areas within a circular mounting area, calculated to be as large as possible without overlapping, using the theory of circle packing to optimize the packing ratio and ensure even spacing and uniform light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If light-emitting elements are arranged in linear arrangement with separation, then electrical connection is simplified, but the number of elements that can be mounted in the circular mounting area is reduced
Solution Approach 1:
The circular mounting area is divided into multiple radial segments, with light-emitting elements arranged along radii from the center. This segmentation allows for increased element density while maintaining systematic organization for electrical connections.
Solution Approach 2:
The arrangement transitions from conventional linear/planar positioning to a radial-dimensioned layout where elements are positioned along radii emanating from the center. This dimensional reorganization maximizes space utilization in the circular area.
2Quantity of substance
If light-emitting elements are arranged in close contact, then the number of elements increases, but uniform spacing and even light distribution become difficult to achieve
Solution Approach 1:
Different regions of the mounting area are assigned different functions: the center region contains a light-emitting element for core illumination, while peripheral regions contain elements along radii for extended light distribution. This local differentiation optimizes both density and uniformity.
Solution Approach 2:
The radial arrangement along curved paths from the center naturally distributes elements in a pattern that maintains spacing uniformity while increasing element count, leveraging the circular geometry of the mounting area.
3Illumination intensity
If more light-emitting elements are mounted to increase brightness, then light emission intensity increases, but heat generation and reliability issues worsen
Solution Approach 1:
The radial arrangement creates asymmetric heat dissipation paths from the center outward, allowing heat to distribute more evenly across the mounting area rather than concentrating in linear rows, thereby improving reliability while maintaining high light output.
Data Source
AI summary
In a first aspect of the present invention, it is suggested that a mounting method for mounting light-emitting elements as evenly as possible in a mounting area of a lighting device may permit increased number of light-emitting elements. In a second aspect of the present invention, a lighting device including a substrate with a circular mounting area, a plurality of light-emitting elements configured to be positioned at centers of equal smaller circular areas that are calculated to be equal in size in the circular mounting area, the equal smaller circular areas being equal in size to each other and set as large as possible without an overlapping portion in the circular mounting area, a total area of the equal smaller circular areas being smaller than the circular mounting area, and the light-emitting elements and the equal smaller circular areas being the same in number is suggested.