LED Filament Segmentation for Custom Spectral and Spatial Light Control
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Solution Overview
Problem
Existing LED filament lamps produce uniform light, which limits the ability to customize light spectral distribution and direction, affecting both functionality and aesthetics.
Innovation Solution
A LED filament arrangement with distinct portions emitting different spectral distributions in unique spatial directions, allowing for customizable light direction and color temperature, enhancing both functionality and aesthetics while reducing component complexity for cost-effectiveness and easier recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED filament lamps use uniform light emission from all portions, then the manufacturing is simple and component count is low, but the light spectral distribution and direction cannot be customized
Solution Approach 1:
The LED filament is divided into multiple portions, where each portion can emit light with different spectral distributions in different spatial directions. This segmentation allows customization of light properties without requiring complete redesign of the entire filament structure
Solution Approach 2:
Different portions of the LED filament are configured with distinct light emission characteristics (spectral distribution and spatial direction). This local differentiation enables tailored lighting solutions for specific applications while maintaining overall filament integrity
2Adaptability or versatility
If LED filament lamps use uniform light emission, then the device structure is simple, but the aesthetic attractiveness and decorative aspect are limited
Solution Approach 1:
The LED filament employs asymmetric light emission patterns where different portions emit light in different directions and with different spectral characteristics. This asymmetry creates visually interesting effects and enhances decorative appeal
Solution Approach 2:
The invention adds spectral distribution as an additional dimension of customization beyond just spatial direction. This multi-dimensional approach to light emission greatly enhances aesthetic possibilities
3Adaptability or versatility
If LED filament lamps use multiple components for different light portions, then light customization is possible, but manufacturing cost increases and recycling becomes difficult
Solution Approach 1:
The LED filament uses a universal base structure that can accommodate different light emission configurations. By making the filament itself multi-functional through portion-based differentiation, the design avoids needing separate specialized components for each function
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
Enables tailored light emission with varying color temperatures and directions, improving the LED filament's attractiveness and functionality without increasing component complexity, thus being more cost-effective and recyclable.
Implementation Method 1
The LED filament(s) comprise an array of a plurality of light emitting diodes, LEDs
Data Source
AI summary
A light emitting diode, LED, filament arrangement (100), comprising at least one LED filament (120) comprising an array of a plurality of light emitting diodes (125), LEDs, wherein the at least one LED filament comprises a first portion (130) having a first shape, wherein the first portion is configured to emit light of a first spectral distribution, S1, in a first spatial direction, D1, and a second portion (140) having a second shape, different from the first shape, and the second portion is configured to emit light of a second spectral distribution, S2, in a second spatial direction, D2, wherein the first spectral distribution, S1, is different from the second spectral distribution, S2, and the first spatial direction, D1, is different from the second spatial direction, D2.