Dual-Side Fluorescent Layer LED Lighting for 3D Emission
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Solution Overview
Problem
Existing LED lighting apparatuses face challenges in achieving optimal luminance efficacy, heat dissipation, and aesthetic appeal, particularly in providing wide-range light emission in three-dimensional spaces.
Innovation Solution
The LED lighting apparatus incorporates a driver, substrate, multiple LED chips, a first fluorescent layer, and a second fluorescent layer, where the first light emitted by the LED chips passes through the first fluorescent layer and excites the second fluorescent layer to produce a second light, achieving a total luminance level of at least 20% of the second light, with controlled thickness and distance between the layers to enhance luminance, and flexible or bent substrates to direct light emission in various directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fluorescent layer is used to convert LED light, then the structure is simple, but the light emission coverage in three-dimensional space is limited
Solution Approach 1:
The patent applies a two-sided substrate structure with fluorescent layers on both sides of the LED chips, transitioning from a single-plane to a dual-plane configuration. This dimensional change enables light emission in multiple directions (front and back), significantly expanding the three-dimensional light coverage while maintaining structural simplicity through the symmetric dual-layer design.
Solution Approach 2:
The patent divides the single fluorescent conversion function into two separate fluorescent layers positioned on opposite sides of the LED chips. Each fluorescent layer independently converts light in its respective direction, segmenting the light emission function to achieve comprehensive three-dimensional illumination coverage.
2Use of energy by moving object
If the first fluorescent layer is made thick to improve light conversion, then conversion efficiency increases, but the luminance level of transmitted light decreases
Solution Approach 1:
The patent segments the fluorescent conversion function across two separate layers instead of using one thick layer. This allows each layer to be optimized for its specific function: the first layer converts light efficiently while the second layer receives the transmitted light, balancing conversion efficiency with luminance output.
Solution Approach 2:
By distributing the fluorescent conversion across two dimensions (front and back sides), the patent enables both layers to contribute to the overall light output. The first layer converts incident light while allowing transmitted light to reach the second layer, which converts it further, achieving both high conversion efficiency and maintained luminance through spatial distribution.
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 ensures high luminance efficacy and wide-range light emission in three-dimensional spaces while maintaining heat dissipation and aesthetic considerations, providing a versatile and efficient lighting solution.
Implementation Method 1
The plurality of LED chips are mounted on a first side of the substrate
Implementation Method 2
A first fluorescent layer is disposed on the first side of the substrate covering the plurality of LED chips
Implementation Method 3
The third light is emitted into and excites the second fluorescent layer to emit a second light
Data Source
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AI summary
ALEDlighting apparatus includes a driver, a substrate, LED chips, a first fluorescent layer and a second fluorescent layer. The driver converts an external power source to a driving current. The substrate is mounted with two electrodes electrically connected to the driver for getting the driving current. The plurality of LED chips are mounted on a first side of the substrate.The first fluorescent layer is disposed on the first side of the substrate covering the plurality of LED chips. The second fluorescent layer is disposed on a second side of the substrate. A part of a light emitted from the plurality of LED chips passing through the first fluorescent layer and then exciting the second fluorescent layer to emit a second light.