LED Linear Lighting with Polygonal Light Pipe for Uniform Illumination
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Solution Overview
Problem
Conventional fluorescent light sources suffer from delayed startup, flickering, hazardous materials, environmental harm, and discomfort due to mercury and ballast-related issues, necessitating a safer, more efficient, and environmentally friendly lighting solution.
Innovation Solution
A high-powered LED linear lighting system comprising a polygonal light pipe, LED packages, heat pipe assemblies, and a protective housing that provides instant, flicker-free, and uniform illumination without hazardous materials, utilizing a patterned light pipe for diffusion and reflection, and heat pipes for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fluorescent light is used, then illumination is provided, but startup delay occurs and light flickers
Solution Approach 1:
The patent removes the ballast component from the lighting system entirely, replacing the fluorescent lamp with an LED lamp that can operate directly from AC power without requiring current-limiting ballast equipment. This extraction eliminates the startup delay and flickering issues caused by ballast operation.
Solution Approach 2:
The patent replaces the mechanical/electromagnetic ballast system with a solid-state LED driving system that directly converts AC power to suitable LED operation, eliminating the mechanical switching and electromagnetic induction mechanisms that cause delay and flicker.
2Reliability
If ballast is used to control current, then current control is achieved, but light flickers and audible vibration occurs
Solution Approach 1:
The patent extracts and removes the ballast component from the system, replacing it with LED drivers that provide current control without the electromagnetic switching mechanisms that generate flicker and audible vibration. The LED circuitry inherently provides stable current control without these harmful side effects.
Solution Approach 2:
The patent substitutes the electromagnetic ballast system with solid-state LED driving electronics that control current through electronic circuitry rather than electromagnetic induction, eliminating the mechanical vibration and light flicker associated with ballast operation.
3Illumination intensity
If fluorescent light tube is used, then illumination is provided, but hazardous materials are present
Solution Approach 1:
The patent extracts and eliminates the hazardous materials (mercury, PCBs, DEHP) from the lighting system by replacing the fluorescent lamp with an LED lamp, maintaining illumination functionality without the toxic components requiring special disposal procedures.
Solution Approach 2:
The patent converts the harmful fluorescent lighting system into a beneficial LED system that eliminates environmental hazards while maintaining or improving illumination performance, turning a harmful technology into a safe and sustainable solution.
4Illumination intensity
If conventional fluorescent light is used, then illumination is provided, but disposal is expensive and environmentally damaging
Solution Approach 1:
The patent extracts and removes hazardous materials from the lighting system, replacing fluorescent lamps with LED lamps that contain no mercury or PCBs, thereby eliminating the need for expensive hazardous waste disposal and special landfill requirements.
Solution Approach 2:
The patent converts the harmful fluorescent lighting system into a beneficial LED system that eliminates environmental hazards and disposal costs, transforming a waste-generating technology into an environmentally sustainable solution.
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 LED lighting system offers immediate startup, stable illumination, safety, reduced environmental impact, and cost savings through low power consumption and long lifetime, eliminating mercury and other hazardous materials, and preventing explosions.
Implementation Method 1
The plurality of heat pipe assemblies comprise heatsinks and heat pipes. The heat pipes are hollow pipes that are filled with a liquid such as water or coolant and cooperate with the heatsinks to dissipate heat.
Implementation Method 2
A patterned surface on the light emitting surface of the light pipe diffuses the emitted light.
Implementation Method 3
A patterned surface on the surface of the light pipe opposite the light emitting surface reflects light.
Implementation Method 4
two LED packages, two LED printed circuit boards PCBs
Implementation Method 5
The light source of the present invention comprises a polygonal light pipe, a light reflector panel, two LED packages
Data Source
AI summary
A light emitting diode linear light which is high powered and has enhanced uniformity and illumination and is safe to humans, environmentally friendly, and possesses an extremely long lifetime is disclosed. The LED lighting comprises a polygonal light pipe, a light reflector panel, two LED packages, two LED PCBs, a plurality of heatsinks, a plurality of heat pipe assemblies, a protective housing, a back cover, and a diffuser cover. The polygonal light pipe comprises a transparent or semitransparent material. A patterned surface on the light emitting surface of the light pipe diffuses the emitted light. A patterned surface on the surface of the light pipe opposite the light emitting surface reflects light. The plurality of heat pipe assemblies comprise heatsinks and heat pipes. The heat pipes are hollow pipes that are filled with a liquid such as water or coolant and cooperate with the heatsinks to dissipate heat.