Twisted LED Filament Holder for Omnidirectional Bulb Lighting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Decorative LED light bulbs face challenges in achieving omnidirectional light emission due to the intricate patterning of their filaments, which require substantial support structures that block light emission, preventing the formation of a fully omnidirectional bulb with desirable aesthetic qualities.
Innovation Solution
A decorative LED bulb design featuring a plurality of linear LED filaments arranged in a twisted orientation within a globe, secured at upper and lower ends relative to a support stalk, allowing for 360-degree light emission around the longitudinal axis, with conductor branches electrically connecting the filaments to form a complete circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If intricate patterning of filaments is used to achieve desirable aesthetic properties, then aesthetic quality is improved, but light emission in certain directions is blocked by support structures
Solution Approach 1:
The filament structure is divided into multiple discrete LED segments arranged in a spiral pattern around the support stalk. Each segment is independently positioned to emit light in specific directions, collectively achieving omnidirectional coverage while maintaining the intricate aesthetic appearance through their distributed arrangement.
Solution Approach 2:
The filaments are arranged in a three-dimensional spiral configuration around the support stalk rather than in a single plane. This spatial distribution across multiple dimensions allows light to be emitted in all directions (omnidirectionally) while the spiral pattern itself provides the desired aesthetic quality.
2Stability of the object's composition
If substantial support structures are used to hold intricate filament patterns, then structural stability is improved, but light emission is blocked preventing omnidirectional output
Solution Approach 1:
The support structure is designed with localized features where LED filaments are positioned at specific points along the spiral path. The support stalk provides structural stability only where needed to hold the filaments, while leaving other areas open for light transmission. This localized support approach maintains structural integrity without blocking omnidirectional light emission.
3Ease of manufacture
If LED filaments are arranged linearly and secured to support stalk, then manufacturing simplicity is improved, but achieving 360-degree light emission requires specific angular orientation
Solution Approach 1:
The linear LED filaments are oriented at an angle relative to the support stalk, extending both axially and radially. This angular arrangement in three-dimensional space allows each linear filament to emit light in multiple directions simultaneously, collectively achieving 360-degree omnidirectional emission while maintaining the simplicity of linear filament construction.
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 design achieves omnidirectional light emission, meeting ENERGY STAR® certification requirements for omnidirectional bulbs by ensuring even light distribution both vertically and laterally, while maintaining the aesthetic appeal of decorative bulbs.
Implementation Method 1
an LED driver circuit secured within the electrical connector base, wherein the LED driver circuit is electrically connected with the plurality of LED filaments
Data Source
AI summary
An omnidirectional LED filament holder and lighting device comprising the same comprises a filament tree supporting a plurality of linear LED filaments having a twisted orientation relative to a central support stalk of the filament tree. When arranged within a globe of a lighting device, the omnidirectional LED filament holder provides a lighting device providing omnidirectional light emission usable for general lighting applications while providing a desirable aesthetic for the lighting device.