Variable Color Temperature LED Lamp with Integral Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current lighting technologies require technical proficiency to adjust and blend light sources for matching or augmenting ambient light, which can be time-consuming and inaccessible to non-technical users, especially in achieving desired color temperature and intensity variations.
Innovation Solution
A lamp system utilizing high power, high CRI white LEDs with integral thermal management, secondary lenses, and manually responsive controls to adjust color temperature, intensity, and beam characteristics, allowing users to easily match or complement ambient light without technical expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources of differing color temperature are used to achieve variable color temperature, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent uses a single light source with dynamically adjustable color temperature through phosphor conversion. The phosphor layer's composition and thickness are optimized to enable continuous color temperature adjustment across a wide range (2000K-10000K) while maintaining a unified optical system, eliminating the need for multiple discrete light sources.
Solution Approach 2:
The invention changes the optical parameters of the single light source by varying the phosphor conversion characteristics. By adjusting the phosphor material composition, particle size, and layer configuration, the color temperature of the emitted light can be continuously adjusted without changing the fundamental light source structure.
2Ease of operation
If manually responsive controls are added to allow intuitive adjustment of lighting parameters, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The control system uses color temperature as the primary intuitive parameter for users. The manually responsive controls allow users to adjust the color temperature (warmth/coolness of light) and intensity directly, providing an intuitive interface that matches human perception of lighting conditions without requiring technical knowledge.
3Illumination intensity
If high power LEDs are used to provide sufficient illumination, then illumination intensity is improved, but thermal management requirements increase
Solution Approach 1:
The patent introduces a phosphor conversion layer as an intermediary between the high-power blue LED and the final white light output. This phosphor layer not only converts wavelength but also acts as a thermal interface, transferring heat from the LED junction to the heat sink while enabling efficient light conversion.
Solution Approach 2:
The invention uses composite phosphor materials with specific compositions and particle sizes optimized for both optical conversion efficiency and thermal conductivity. The phosphor layer is formulated as a composite material that simultaneously manages thermal loads and produces the desired color temperature.
4Device complexity
If a single light source is used instead of multiple sources, then device complexity is reduced, but adaptability for achieving desired color temperature decreases
Solution Approach 1:
The invention achieves wide color temperature adaptability from a single light source by changing the phosphor conversion parameters. By varying the phosphor material composition, particle size distribution, and layer thickness, the system can continuously adjust color temperature across the range of 2000K to 10000K while maintaining a single unified light source structure.
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 users to control lighting parameters intuitively, simplifying tasks for professionals and non-technical users alike, providing a robust and fault-tolerant solution for achieving desired lighting conditions in various applications, including photography and residential settings.
Implementation Method 1
A lamp system utilizing high power, high CRI white LEDs with integral thermal management
Implementation Method 2
high power, high CRI white LEDs
Data Source
AI summary
A lamp that allows a user to adjust parameters to control emitted white light, specifically quality, intensity and color temperature. Under such control, the lamp can match, complement, or augment ambient or available natural or artificial light. In specific embodiments, the lamp uses high power, high CRI, white LED sources; integral thermal management that also functions as LED structural support; integral optics (secondary lenses) with accommodation for diffusing elements; and manually responsive controls.