Off-Center LED Arrays in Light-Emitting Modules for Asymmetrical Lighting
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Solution Overview
Problem
Existing LED-based lighting solutions lack the ability to create dynamic, human-centric lighting effects that can adapt to different preferences and environments, limiting their versatility and aesthetic appeal.
Innovation Solution
A light-emitting module with a first LED array and a second LED array arranged off-center within the first array, allowing for asymmetric lighting effects through individual control of each array's light intensity and color, combined with an optical structure and semi-reflective window to enhance light mixing and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single LED array is used for lighting, then the structure is simple and cost is reduced, but the lighting effects are limited and cannot create dynamic asymmetrical patterns
Solution Approach 1:
The LED array is segmented into multiple independently controllable groups (first LED array, second LED array, third LED array) with different functions. The first array provides overall illumination, the second array creates asymmetrical effects, and the third array fills gaps. This segmentation allows diverse lighting effects while maintaining manageable complexity through modular control.
Solution Approach 2:
The patent implements a nested structure where the second LED array is positioned within the illumination area of the first LED array, and the third LED array is positioned within the illumination area of the second LED array. This nested arrangement allows multiple lighting functions to be integrated in a compact configuration, enhancing versatility without proportionally increasing overall device complexity.
2Adaptability or versatility
If multiple LED arrays with different functions are implemented, then dynamic asymmetrical lighting effects are achieved, but the number of LEDs and control complexity increases
Solution Approach 1:
Different regions of the lighting device are assigned different LED arrays with specific functions: the first array covers the entire illumination area for general lighting, the second array is positioned in specific regions for asymmetrical effects, and the third array is strategically placed to fill illumination gaps. This local quality approach ensures that LEDs are deployed only where needed for specific effects, optimizing the quantity used.
Solution Approach 2:
Each LED array is designed to serve multiple purposes: the first array provides both general illumination and contributes to asymmetrical effects when controlled independently; the second array creates asymmetrical patterns while also filling specific illumination gaps; the third array supplements lighting in gap regions while maintaining overall illumination balance. This multi-functionality reduces the total number of LEDs required compared to dedicated separate systems.
3Adaptability or versatility
If symmetrical LED arrangement is used, then manufacturing is simple and structural balance is achieved, but lighting effects are static and lack visual interest
Solution Approach 1:
The patent deliberately employs asymmetrical arrangement of the second LED array within the illumination area, positioned off-center to create dynamic asymmetrical lighting effects. The third LED array is also strategically positioned asymmetrical to fill specific gap regions. This asymmetry in positioning enables visually interesting dynamic lighting patterns while the modular design maintains ease of manufacture through standardized LED components and systematic control architecture.
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 enables the creation of dynamic, asymmetrical lighting effects that can enhance visual interest and comfort, providing a range of lighting experiences by varying color temperature and intensity, while reducing the number of LEDs required.
Implementation Method 1
a first light-emitting diode (LED) array arranged on a substrate. The first LED array comprises a plurality of first LEDs, that are configured to emit first light. A second LED array is arranged on the substrate. The second LED array comprises a plurality of second LEDs configured to emit second light.
Implementation Method 2
an optical structure arranged along the second perimeter. The optical structure is arranged to redirect the first light and second light toward the substrate and/or toward a housing in which the substrate is arranged.
Data Source
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Figure 3~5
AI summary
A light-emitting module (100) is disclosed, the light-emitting module comprising a first light-emitting diode, LED, array (104) arranged on a substrate (102). The first LED array has a first perimeter (106) and comprises a plurality of first LEDs (108) configured to emit first light. The light-emitting module further comprises a second LED array (110) arranged on the substrate. The second LED array has a second perimeter (112), smaller than the first perimeter and comprises a plurality of second LEDs (114) configured to emit second light. The second LED array is arranged off-center within the first LED array. Further, the light-emitting module comprises a controller (116) configured to individually control the first LED array and the second LED array.