LED Bulb With Segmented Fluorescent Modules For Tunable Color Temperature
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Solution Overview
Problem
Current lighting technologies that adjust lighting characteristics are often expensive and lack cost-effective solutions for simulating day-to-night transitions in lighting, affecting human well-being by influencing attention and anxiety levels.
Innovation Solution
A lighting apparatus comprising multiple light emitting diode modules with different fluorescent powders and electronic units, where the driver circuit adjusts current to change color temperature and brightness, allowing for adjustable spectral characteristics and color temperature transitions, using a combination of blue, green, and red fluorescent powders to achieve white light and enhance color rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lighting apparatus changes the characteristic of the lighting to simulate day-to-night transitions, then human well-being is improved, but the cost increases
Solution Approach 1:
The lighting apparatus is divided into multiple independent LED modules, each with distinct fluorescent powder compositions. The first LED module contains fluorescent powder with peak emission at 560-580nm (yellow-green), while the second LED module contains fluorescent powder with peak emission at 610-650nm (red). This segmentation allows each module to be controlled independently, enabling dynamic adjustment of color temperature and lighting characteristics without requiring a completely new system design, thus improving adaptability while controlling cost.
Solution Approach 2:
The invention changes the spectral parameters by using different fluorescent powder materials with specific peak emission wavelengths. By adjusting the excitation current to different LED modules and combining their outputs, the system can dynamically change the overall spectral characteristics and color temperature. This parameter-based approach allows cost-effective lighting characteristic adjustment without complex mechanical or optical mechanisms.
2Adaptability or versatility
If multiple LED modules with different fluorescent powders are used to achieve color temperature adjustment, then lighting versatility is improved, but device complexity increases
Solution Approach 1:
The invention merges multiple LED modules with different fluorescent powder characteristics into a single integrated lighting apparatus. The first LED module (with 560-580nm peak emission fluorescent powder) and the second LED module (with 610-650nm peak emission fluorescent powder) are combined and controlled by a unified driver circuit. This merging approach achieves versatile color temperature adjustment while maintaining a relatively simple overall structure, as the modules work together synergistically rather than as separate systems.
Solution Approach 2:
Each LED module is designed to serve multiple functions: the first module provides yellow-green emission for warm white light, the second module provides red emission for enhanced color rendering and warmer tones. Both modules can be independently controlled or operated together, allowing the system to achieve multiple lighting modes (cool white, warm white, tunable white) without requiring separate dedicated components for each function, thus reducing overall device complexity.
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 solution provides a cost-effective, versatile, and stable lighting system that can simulate day-to-night transitions, improving human well-being by adjusting color temperature and brightness, enhancing color rendering, and offering user-selectable presets for various lighting needs.
Implementation Method 1
The first fluorescent powder covers on the first light emitting diode unit. The second fluorescent powder covers on the second light emitting diode unit. The different light characteristics between the second fluorescent powder and the first fluorescent powder makes the difference light characteristics between the first light emitting diode unit and the second light emitting diode unit.
Data Source
AI summary
The first set of light emitting diode modules include multiple first type light emitting diode units. The first type fluorescent powder covers on the surface of multiple first type light emitting diode units. The second set of light emitting diode modules include multiple second type light emitting diode units and accessory electronic units. The second type fluorescent powder covers on the surface of multiple second type light emitting diode units. The driver circuit transfers the electricity to the first light emitting diode modules and the second light emitting diode modules to make the first light emitting diode unit and the second light emitting diode unit lighting. Moreover, the accessory electronic unit may affect the relative proportion current between the first set of light emitting diode modules and the second set of light emitting diode modules when the driver circuit supplies the different total current value.