LED Lighting Device with Parallel Switch for Adjustable Color Temperature
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Solution Overview
Problem
Existing LED lighting systems require costly equipment and complex configurations to adjust correlated color temperature (CCT), making it expensive to achieve desired color temperatures.
Innovation Solution
An LED lighting device with two light source modules of different color temperatures and a switch module that allows for three operation modes: individual operation of each module and simultaneous operation in parallel, enabling the emission of light at a third color temperature between the two, using a simple and cost-effective constant current power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If deeming per channel or Bluetooth automation configuration is used to adjust color temperature, then color temperature adjustment capability is improved, but device cost increases
Solution Approach 1:
The lighting system is segmented into multiple independent light source modules, each emitting light at a different color temperature. This allows the system to achieve color temperature adjustment by selectively activating different modules rather than using complex control systems, thereby reducing device cost while maintaining adaptability.
Solution Approach 2:
The switch module serves multiple functions: it can selectively activate individual light source modules for specific color temperatures or activate multiple modules simultaneously to achieve intermediate color temperatures. This multi-functionality eliminates the need for expensive dedicated control systems while maintaining full color temperature adjustment capability.
2Adaptability or versatility
If multiple light source modules with different color temperatures are used, then color temperature adjustment range is improved, but device complexity increases
Solution Approach 1:
Multiple light source modules with different color temperatures are merged into a single integrated lighting device with a unified power supply and control system. The switch module provides a simple switching mechanism that combines the multiple light sources without requiring complex control electronics, thereby expanding color temperature range while minimizing structural complexity.
Solution Approach 2:
The system dynamically adjusts color temperature by selectively activating different combinations of light source modules based on user needs. The switch module enables dynamic reconfiguration of the lighting system, allowing transitions between different color temperatures and intermediate values without physical reconfiguration, thus expanding adjustment range while keeping the structure simple.
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 adjustable color temperature lighting at a lower cost without the need for expensive equipment, providing stable and efficient multi-color temperature options.
Implementation Method 1
A first light source module configured to emit a light of a first color temperature; a second light source module configured to emit a light of a second color temperature that is different from the first color temperature
Data Source
AI summary
An LED lighting device is provided. The LED lighting device may include a light source configured to emit a light of first color temperature, second color temperature, and third color temperature and a switch electrically connected to the light source to control the light source to emit the lights of the first color temperature, the second color temperature, and the third color temperature, respectively. The light source includes a first light source configured to emit a light of a first color temperature, and a second light source configured to emit a light of a second color temperature that is different from the first color temperature, and the light source emits a light of a third color temperature between the first and second color temperatures when the switch parallel-connects the first light source and the second light source.