LED Lamp Light Distribution System for Rectangular Illumination
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Solution Overview
Problem
Conventional lighting systems, particularly those using LEDs, face challenges in achieving specific illumination effects such as rectangular light spots, which are difficult to achieve with existing technologies.
Innovation Solution
An LED light distribution system comprising an LED chip, a lens with specific contour lines and a light reflecting device, where the lens's exit surface contour lines and light source setting groove are designed to converge and diffuse light in a way that, combined with a reflecting plate, produces a rectangular light spot on an illuminated surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED lighting systems are used, then power saving and brightness are improved, but the ability to achieve specific illumination shapes (such as rectangular spots) deteriorates
Solution Approach 1:
The illumination system is segmented into distinct functional components: LED chip array, lens with specific contour lines, and light reflecting device. Each component handles a specific aspect of light control, allowing the system to achieve rectangular spot shapes while maintaining high brightness output.
Solution Approach 2:
The patent introduces dimensional control through contour lines on the lens surface and the spatial arrangement of the light reflecting device. By controlling light distribution in multiple dimensions (horizontal and vertical sections), the system transforms conventional omnidirectional LED output into precisely shaped rectangular illumination patterns.
2Ease of manufacture
If conventional lens designs are used, then manufacturing simplicity is improved, but the precision of light distribution control deteriorates
Solution Approach 1:
The lens is designed with different contour lines (first contour line in horizontal section, second contour line in vertical section) that create local variations in light refraction. These local quality differences enable precise control over light distribution in different spatial directions while maintaining a relatively simple overall lens structure that can be manufactured using conventional techniques.
Solution Approach 2:
The patent changes optical parameters by introducing specific contour line geometries on the lens surface. The curvature and positioning of these contour lines are optimized to achieve desired light distribution patterns, transforming a simple lens into a precision light control element without requiring complex manufacturing processes.
3Device complexity
If simple light reflecting devices are used, then device complexity is reduced, but the precision of rectangular spot formation deteriorates
Solution Approach 1:
The light reflecting device employs asymmetric positioning and orientation of reflecting plates relative to the LED chip array and lens. This asymmetric arrangement, combined with the contour line design, enables the system to generate symmetric rectangular spot patterns while keeping the reflecting device structure relatively simple and easy to manufacture.
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 system effectively generates a rectangular light spot on an illuminated surface, meeting user demands for specific lighting effects by optimizing the light distribution and reflection, unlike prior art which often results in circular or fan-shaped spots.
Implementation Method 1
a lens disposed in a light emitting direction of the LED chip... the first contour line and the first exit surface contour line complete the convergence of the outgoing light of the LED chip toward the lens optical axis... the second contour line and the second exit surface contour line complete diffusion of the outgoing light of the LED chip away from the lens optical axis
Implementation Method 2
a light reflecting device disposed in the light emitting direction of the lens... the emergent light of the second exit surface contour line close to the side of the reflecting plate is directed toward the reflecting plate, the reflected light of the reflecting plate overlaps with the light spot formed by the emergent light of the second exit surface contour line away from the side of the reflecting plate
Data Source
AI summary
An LED lamp light distribution system and illumination system, the illumination system comprises an LED lamp light distribution system, and at least one illuminated surface. The LED lamp light distribution system comprises an LED chip, a lens, and a light reflecting device. The lens comprises a lens optical axis, a light source setting groove, and an exit surface. The light source setting groove comprises a first contour line, and the exit surface comprises a first exit surface contour line. The first contour line and the first exit surface contour line complete the convergence of the emergent light of the LED chip toward the lens optical axis. The light source setting groove comprises a second contour line, the exit surface comprises a second exit surface contour line, and the second contour line and the second exit surface contour line complete the diffusion of the emergent light of the LED chip away from the lens optical axis. The illuminated surface is perpendicular to the reflecting plate and the lens optical axis. The illumination system can provide users with specific lighting effects to meet the needs of users.