LED Light Assembly Lens Arrangement for Uniform Diffuser Illumination
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Solution Overview
Problem
Existing LED light emission arrangements, such as slot lights, face inefficiencies in light distribution due to the reliance on high-quality reflector materials and the risk of accidental contact with electrical components, limiting the overall efficiency and evenness of light emission.
Innovation Solution
Incorporating a lens arrangement between the LED light source and diffuser, designed as a truncated cone with a convex bottom surface and concave side surfaces, to direct and distribute light uniformly and completely onto the diffuser, reducing the need for high-quality reflector materials and protecting against accidental contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If reflector wings are used to direct light onto the diffuser, then light distribution is improved, but the efficiency is limited due to multiple reflections and the need for high-quality reflector materials
Solution Approach 1:
A lens arrangement is introduced as an intermediary optical element between the LED light source and the diffuser. This lens directly refracts and directs light onto the diffuser, replacing the indirect reflection-based light direction method and eliminating the need for high-quality reflector materials while improving light efficiency.
Solution Approach 2:
The optical system replaces the mechanical/reflection-based light direction system with a lens-based refraction system. Instead of relying on reflector wings to bounce light onto the diffuser, the lens arrangement directly guides light through refraction, reducing energy loss from multiple reflections.
2Illumination intensity
If reflector wings are used to direct light, then light emission is improved, but the risk of accidental contact with electrical components increases
Solution Approach 1:
The lens arrangement serves as a protective intermediary barrier between the LED light source (electrical component) and the diffuser. This physical barrier prevents accidental contact while maintaining light transmission, eliminating the need for transparent protective plates that were required in reflector-based designs.
3Loss of energy
If high-quality reflector materials are used, then light reflection properties are improved, but the device complexity and cost increase
Solution Approach 1:
The lens arrangement replaces the reflector system entirely, eliminating the need for high-quality reflector materials. The lens directly guides light through refraction, simplifying the optical system and reducing material requirements while maintaining or improving light efficiency.
Solution Approach 2:
The reflector wings and reflector material are extracted from the optical system and replaced by the lens arrangement. This extraction eliminates the complexity and cost associated with high-quality reflector materials while achieving the same light direction function through refraction.
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
This configuration enables nearly complete and uniform light emission with high efficiency, minimizing the reliance on reflector materials and preventing accidental contact with electrical components, resulting in improved light distribution and protection.
Implementation Method 1
a lens arrangement 14 is provided between the LED light source 2 and the diffuser 3, which is designed and arranged between the LED light source 2 and the diffuser 3 in such a way that the entire light emitted by the LED light source 2 is directed essentially completely and uniformly onto the diffuser 3
Implementation Method 2
reflector wings are provided laterally between the lens arrangement 14 and the diffuser 3, which also direct any scattered light that may be present onto the diffuser 3
Data Source
Figure 1~2
Figure 3~4
AI summary
The arrangement has a LED light source (2) for light emission, and a diffuser (3) arranged in the front of the LED light source. The output of lamp (11) is performed over the diffuser. A lens arrangement (14) is provided between the LED light source and the diffuser, in such a manner that the entire light emitted from the LED light source is directed completely and evenly over the diffuser. The reflector wings (7) are laterally arranged between the lens arrangement and the diffuser.