Light Emitting Module Layout for Beam Angle and Color Temperature Control
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Solution Overview
Problem
Existing light emitting modules struggle to simultaneously adjust beam angle and color temperature, and they find it difficult to achieve both wide and narrow beam angles with a single module.
Innovation Solution
A light emitting module comprising a base substrate with a first and second light emitting diode, each with independent light emitting regions and wavelength conversion layers, allowing for adjustable beam angles and color temperatures by controlling the power ratio between the regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single wavelength conversion layer is formed on a single LED chip, then the structure is simple, but it is difficult to regulate beam angle and color temperature
Solution Approach 1:
The invention divides a single LED chip into multiple light emitting regions (first light emitting region and second light emitting region) with different beam angles. By segmenting the light emitting areas and assigning different characteristics to each region, the system achieves beam angle regulation capability while maintaining a relatively simple single-chip structure.
Solution Approach 2:
Different light emitting regions are assigned different local qualities - specifically different beam angles and emission characteristics. The first light emitting region emits light with a first beam angle while the second light emitting region emits light with a second beam angle, allowing selective activation to regulate the overall beam angle output.
2Device complexity
If a single wavelength conversion layer is formed on a single LED chip, then the structure is simple, but it is difficult to control color temperature
Solution Approach 1:
The invention segments the single LED chip into multiple light emitting regions that can be independently controlled. By activating different combinations of these regions, the system can adjust color temperature output without requiring multiple separate LED chips or complex wavelength conversion layers.
Solution Approach 2:
A single LED chip structure is designed to perform multiple functions - emitting light with different beam angles and different color temperatures by selectively activating different light emitting regions. This multi-functionality is achieved within a unified chip structure rather than requiring separate components for each function.
3Adaptability or versatility
If multiple light emitting regions are created on separate LED chips, then beam angle regulation is achieved, but the device complexity increases
Solution Approach 1:
The invention merges multiple light emitting regions with different beam angle characteristics onto a single LED chip. This consolidation achieves beam angle regulation capability while avoiding the complexity of using multiple separate LED chips, mounting substrates, and interconnections that would be required in a multi-chip configuration.
Solution Approach 2:
A single LED chip is designed to embody multiple functions by incorporating different light emitting regions that can be independently controlled. This multi-functional chip design eliminates the need for multiple separate components, reducing overall device complexity while maintaining beam angle regulation capability.
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 the light emitting module to emit light with adjustable beam angles and color temperatures, effectively supporting both wide and narrow beam angles, and allowing for simultaneous control of beam angle and color temperature.
Implementation Method 1
each of the first and second light emitting parts further includes a wavelength conversion layer covering the first and second light emitting regions
Data Source
AI summary
A light emitting module including a substrate, a first light emitter and a second light emitter disposed on the substrate and spaced apart from each other, an isolation layer disposed between the first and second light emitters, and a light diffusion layer and a wavelength converter disposed on the first and second light emitters, in which the first and second light emitters include first and second light emitting regions spaced apart from each other, respectively, the wavelength converter includes a first wavelength conversion layer covering the second light emitting region, and a second wavelength conversion layer covering the first light emitting region, the light diffusion layer covers an upper surface of the first and second wavelength conversion layers, and a region between the first and second wavelength conversion layers has an area vertically overlapped with the isolation layer.