LED Component Surface Colorant for Light Reflection
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Solution Overview
Problem
Traditional LED lighting systems face challenges in color tuning and light quality due to light absorption and reflection from surrounding components, which affect brightness and introduce unwanted colors into the emitted light.
Innovation Solution
Applying a colorant to the exposed component surfaces of LED systems, such as in a coating or solder mask, to reflect and tune the light emitted from the LEDs, enhancing the color rendering index (CRI) and luminosity by matching or altering the color spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional LED lighting systems are used without colorant treatment, then the structure is simple and manufacturing is easy, but the color accuracy and brightness are degraded due to light absorption and reflection from surrounding components
Solution Approach 1:
The patent applies colorants to component surfaces to change their reflective properties. The colorants are selected to reflect specific wavelengths of light that match the LED emission spectrum, thereby enhancing brightness and color accuracy. This directly addresses the contradiction by modifying surface properties to improve illumination intensity while maintaining relatively simple device structure.
Solution Approach 2:
The patent converts the harmful effect of light absorption by surrounding components into a beneficial effect. By applying colorants that reflect specific wavelengths, the previously harmful absorption is transformed into useful light reflection that enhances the emitted light's brightness and color rendering. This principle resolves the contradiction by turning the problematic interaction between LED light and component surfaces into an advantage.
2Manufacturing precision
If colorant is applied to component surfaces to improve color accuracy, then the color rendering index is enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
The patent uses colorants with specific spectral reflectance properties that match the LED emission characteristics. By selecting colorants whose reflection peaks align with the LED's emission spectrum, the system achieves high color accuracy and enhanced color rendering index. This approach improves manufacturing precision regarding color accuracy while the selection of appropriate colorants facilitates integration into existing manufacturing processes.
3Illumination intensity
If colorant is applied to reflect and tune LED light, then luminosity and color rendering are improved, but additional materials and processing steps are required
Solution Approach 1:
The patent applies colorants to component surfaces that are already present in the LED assembly, such as circuit board surfaces and housing components. By utilizing existing structural elements as the substrate for colorant application, the patent enhances luminosity through light reflection without requiring additional bulk materials or significant increases in material quantity. The colorants are applied as thin coatings rather than substantial material additions.
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
This approach improves the color accuracy and brightness of the emitted light by utilizing reflected colors from the component surfaces, allowing for precise color tuning and increased luminosity, thereby enhancing the overall light quality.
Implementation Method 1
The component surface reflects a portion of the light emitted from the LED chip. The colorant may be in a solder mask applied to the component.
Data Source
AI summary
An LED device comprises an LED chip or LED chip array for emitting light of a color spectrum, the LED chip or array being mounted on a component having a component surface. At least one color is applied to the component surface where the color is selected to reflect light to color tune the light emitted from the LED device to obtain a desired CRI.