Light-emitting module with parabolic reflecting facets
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Solution Overview
Problem
Existing light emitting modules face challenges in enhancing light distribution, reflection efficiency, luminous intensity, and design flexibility, particularly in achieving slim and efficient lighting systems.
Innovation Solution
A light emitting module design featuring a driving unit, first and second light emitting units with different wavelengths, and a reflecting portion with parabolic sub-regions and facets that surround the emitting units, allowing for improved light reflection and distribution by adjusting the inclination angles and number of facets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional light emitting module is used, then the structure is simple, but the light distribution and reflection efficiency are insufficient
Solution Approach 1:
The reflecting portion is divided into multiple sub-regions (first region and second region) with different parabolic curves, and each sub-region is further segmented into multiple facets with different inclination angles. This segmentation allows each facet to reflect light from different LED chips in specific directions, improving overall light distribution while maintaining a manageable structural complexity.
Solution Approach 2:
Different regions of the reflecting portion are designed with different parabolic curves and facet configurations tailored to specific LED chips. The first region has facets optimized for reflecting light from the first LED chip, while the second region has facets optimized for the second LED chip, ensuring each area has the quality needed for its specific function.
2Illumination intensity
If a conventional light emitting module is used, then the manufacturing process is simple, but the luminous intensity of central region is insufficient
Solution Approach 1:
The reflecting portion employs parabolic curves in its cross-section and uses faceted surfaces that approximate curved reflection patterns. This curvature design focuses reflected light toward the central region, enhancing luminous intensity while the faceted approximation makes manufacturing more feasible compared to perfect continuous curves.
3Adaptability or versatility
If a conventional light emitting module is used, then the design is straightforward, but the degree of freedom in design is limited
Solution Approach 1:
The design allows for dynamic adjustment of facet inclination angles and numbers in different regions, enabling the module to be customized for different LED chip configurations and desired light distribution patterns. This dynamic design approach increases versatility while the modular faceted structure keeps the complexity manageable through standardized design elements.
4Loss of energy
If a conventional light emitting module is used, then the structure is compact, but the light reflection efficiency is insufficient
Solution Approach 1:
The reflecting portion is segmented into multiple facets within different regions, each optimized to reflect light from specific LED chips. This segmentation increases the effective reflection area and improves reflection efficiency by directing light from multiple chips simultaneously, while the modular nature of the facets keeps the overall structure relatively simple and compact.
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 enhances reflection efficiency, increases light distribution, and improves luminous intensity while allowing for slim design and increased design freedom, thereby addressing the limitations of existing modules.
Implementation Method 1
a reflecting portion configured to surround the first light emitting unit and the second light emitting unit... capable of improving reflection efficiency
Data Source
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AI summary
A light-emitting module provided in an embodiment comprises: a driving part disposed on a substrate and adjacent to one side of the substrate; a first light-emitting part adjacent to the other side of the substrate and disposed on one surface of the substrate; a second light-emitting part adjacent to the other side of the substrate, disposed on the other surface of the substrate, and emitting light different in wavelength from that emitted by the first light-emitting part; and a reflection part surrounding the first and the second light-emitting part and comprising a first and a second area facing the first and the second light-emitting part, respectively, wherein each of the first and the second light-emitting part may comprise one or more light-emitting chips, and the first and the second area may comprise a plurality of subareas having respective parabolic curves with reference to the light-emitting chips of each of the first and the second light-emitting part.