Ring Light Distribution Component for Uniform Illumination
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Solution Overview
Problem
Current ring-shaped lighting fixtures suffer from uneven light emission, with excessive brightness at the center and darkness at the edges due to the design of light-distribution components, leading to suboptimal lighting effects.
Innovation Solution
A ring-shaped light-distribution component with a light-distribution component body featuring a ring-shaped accommodation space, inner, and outer light incident surfaces with distinct deflection angles, and a symmetric light emergent surface, along with a positioning portion for easy assembly and heat dissipation grooves, addresses the issue by distributing light more uniformly across the fixture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional light-distribution component is used in ring-shaped lighting fixtures, then light can be emitted divergently from each light-emitting unit, but the center of the lighting fixture becomes extremely bright while other parts especially near the edge become darker
Solution Approach 1:
The light-distribution component is designed with different surface curvatures in different regions: the first light-distribution surface has a first curvature radius while the second light-distribution surface has a second curvature radius that is different from the first. This local variation in optical properties directs light rays from different light-emitting units to different spatial distributions, preventing excessive concentration at the center and improving overall uniformity across the fixture surface.
2Reliability
If threaded connection is used to connect light-distribution component with chassis, then secure connection is achieved, but assembly operation becomes cumbersome and affects user convenience
Solution Approach 1:
The threaded mechanical connection system is replaced with a snap-fit connection system. The light-distribution component includes a connection structure with elastic deformation capability that allows it to snap into place with the chassis, eliminating the need for threaded fasteners while maintaining secure attachment. This substitution of mechanical connection methods significantly simplifies assembly operations.
3Shape
If multiple light-emitting units are arranged in ring shape with conventional light-distribution components, then ring-shaped lighting pattern is achieved, but uneven light distribution occurs with excessive center brightness
Solution Approach 1:
Different regions of the light-distribution component have different curvature radii to control light distribution locally. The first light-distribution surface corresponds to light-emitting units in the first region and has a first curvature radius, while the second light-distribution surface corresponds to light-emitting units in the second region and has a second curvature radius. This local differentiation optimizes light direction for each region to achieve uniform overall distribution while maintaining the ring-shaped pattern.
Solution Approach 2:
The solution introduces curvature radius as an additional dimensional parameter to control light distribution. By varying the curvature radius across different surfaces of the light-distribution component, the patent adds a new degree of freedom for controlling light ray trajectories, enabling transformation from uneven to uniform light distribution while preserving the ring-shaped geometric pattern.
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 solution improves light emission uniformity by deflecting light rays away from the center, reducing brightness differences and enhancing overall lighting fixture performance.
Implementation Method 1
a deflection angle of light, which is projected by the light-emitting unit, deflected by a portion of the light-distribution component body corresponding to the inner light incident surface being a first deflection angle, a deflection angle of light deflected by a portion of the light-distribution component body corresponding to the outer light incident surface being a second deflection angle
Data Source
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AI summary
The present application discloses a ring-shaped light-distribution component, which includes a light-distribution component body. The light-distribution component body has a ring-shaped accommodation space and a light incident surface and a light emergent surface respectively located on two sides of the light-distribution component body. The ring-shaped accommodation space is used to accommodate at least two light-emitting units distributed along its circumference. An inner wall of the ring-shaped accommodation space is the light incident surface, the light incident surface including an inner light incident surface near the center of the ring light-distribution component and an outer light incident surface away from the center. A deflection angle of light projected by the light-emitting unit and deflected by a portion of the light-distribution component body corresponding to the inner light incident surface is a first deflection angle, and a deflection angle of light deflected by a portion of the light-distribution component body corresponding to the outer light incident surface is a second deflection angle. The first deflection angle is smaller than the second deflection angle. The above scheme can improve the uniformity of the lighting of the lighting fixture. The application also discloses a light source module, a light source assembly and a lighting fixture.