Light Source Module Cup Part Segmentation
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Solution Overview
Problem
Conventional light source modules face reduced light extraction efficiency due to the increased thickness of the cup part, which compromises light transmittance and overall luminous uniformity.
Innovation Solution
The light source module incorporates a cup part with a combination of thick-wall and thin-wall portions configured in a staggered manner, where the thin-wall portions enhance light extraction efficiency and the thick-wall portions maintain structural strength, while a reflector aids in emitting light through these portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the base portion of the cup part is increased to firmly combine the cup part with the lead frame, then the structural strength is improved, but the light transmittance is reduced, resulting in reduced overall light extraction efficiency
Solution Approach 1:
The cup part is segmented into multiple wall portions with different thicknesses: thick-wall portions (first wall portions) for structural support and thin-wall portions (second wall portions) for light transmission. This segmentation allows different regions of the cup part to serve different functions, resolving the contradiction between strength and light transmittance.
Solution Approach 2:
Different wall portions of the cup part are designed with different local qualities (thicknesses). The thick-wall portions provide local structural reinforcement where mechanical strength is needed, while the thin-wall portions provide local high light transmittance where light extraction is prioritized. This local differentiation resolves the global contradiction between strength and light transmission.
2Stability of the object's composition
If the thickness of the cup part base portion is increased to maintain structural strength, then the structural integrity is improved, but the luminous uniformity is reduced
Solution Approach 1:
The cup part is divided into multiple wall portions with alternating thick and thin sections. This segmentation creates multiple light transmission pathways of different thicknesses, allowing light to pass through more uniformly across the entire cup structure while maintaining overall structural integrity through the thick portions.
Solution Approach 2:
The wall portions are designed with asymmetric thickness distribution rather than uniform thickness. This asymmetric design allows optimization of both structural support (through thicker sections) and light transmission uniformity (through thinner sections), resolving the contradiction between structural integrity and luminous uniformity.
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 configuration improves light extraction efficiency and maintains structural strength, achieving better luminous uniformity and balance between light transmission and structural integrity.
Implementation Method 1
At least a portion of the light is reflected by the reflector, and is emitted through the thick-wall portions and the thin-wall portions
Data Source
AI summary
A light source module is provided. The light source module includes a lead frame, a light source, a cup part, and a reflector. The light source is disposed on the lead frame, wherein the light source provides a light. The cup part is disposed on the lead frame, wherein the cup part includes an opening, a plurality of thick-wall portions and a plurality of thin-wall portions. The thick-wall portions and the thin-wall portions surround the light source and define a space. The reflector covers the opening. At least a portion of the light is reflected by the reflector, and is emitted through the thick-wall portions and the thin-wall portions.