Light Emitting Module Layout for Dual Beam Angle and Color Temperature
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Solution Overview
Problem
Traditional light emitting modules struggle with regulating beam angle and color temperature, and are unable to simultaneously achieve both wide and narrow beam angles.
Innovation Solution
A light emitting module design featuring independently operable first and second light emitting diodes, each with distinct beam angles and color temperatures, achieved through separate light emitting regions and wavelength conversion layers, allowing independent control of beam angle and color temperature.
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 beam angle and color temperature cannot be regulated
Solution Approach 1:
The patent divides the light emitting structure into multiple independent light emitting parts (first light emitting part and second light emitting part), each with separate light emitting regions and wavelength conversion layers. This segmentation enables independent control of beam angles and color temperatures for each part, resolving the contradiction between structural simplicity and regulatory capability.
Solution Approach 2:
Different light emitting regions are assigned different local properties: the first light emitting region has a first beam angle and first color temperature, while the second light emitting region has a second beam angle and second color temperature. This local differentiation allows the overall module to provide multiple beam angles and color temperatures simultaneously.
2Volume of moving object
If a single light emitting module is used, then the device is compact, but it cannot simultaneously achieve both wide and narrow beam angles
Solution Approach 1:
The single light emitting module is segmented into multiple independently operable light emitting parts, each capable of producing different beam angles. This allows the compact module to simultaneously provide both wide and narrow beam angles without requiring multiple separate devices.
Solution Approach 2:
The light emitting module is designed with multi-functionality by incorporating multiple light emitting parts that can operate independently or together. Each part serves different functions (wide angle illumination, narrow angle illumination), enabling the single module to replace multiple specialized devices.
3Adaptability or versatility
If multiple light emitting parts with different beam angles are integrated, then beam angle regulation is achieved, but device complexity increases
Solution Approach 1:
Multiple light emitting parts with different beam angle characteristics are merged into a single integrated module. The first light emitting part and second light emitting part are combined on the same substrate with shared structural elements, reducing overall complexity compared to separate devices while maintaining beam angle control 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
The module can emit light with adjustable beam angles and color temperatures, enabling simultaneous use in devices requiring both wide and narrow beam angles and varying color temperatures.
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.