Wavelength Conversion Element Positioning Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing wavelength conversion elements in projection apparatuses face challenges in accurately positioning wavelength conversion layers during assembly, leading to reduced wavelength conversion efficiency and increased complexity, cost, and vibration noise.
Innovation Solution
Incorporating a substrate with a first positioning portion and a wavelength conversion layer with a corresponding second positioning portion, allowing for precise engagement and accurate placement of the wavelength conversion layer, thereby improving assembly accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If wavelength conversion layers are assembled without positioning portions, then the assembly process is simple, but the assembly accuracy is poor and wavelength conversion efficiency is reduced
Solution Approach 1:
The substrate is divided into functional regions including positioning portions that are spatially separated from the wavelength conversion layers. This segmentation allows the positioning portions to be engaged first to establish accurate alignment, followed by placement of the wavelength conversion layers, thereby achieving high assembly accuracy without requiring complex integrated positioning mechanisms.
Solution Approach 2:
Positioning portions act as intermediary elements between the substrate and the wavelength conversion layers. These positioning portions are engaged during assembly to establish precise spatial relationships, serving as mediators that enable accurate positioning without requiring direct integration of positioning features into the wavelength conversion layers themselves.
2Productivity
If wavelength conversion layers are not accurately positioned, then the assembly process is simple, but the wavelength conversion efficiency is reduced
Solution Approach 1:
The positioning portions are designed to be engaged in advance before the wavelength conversion layers are placed on the substrate. This preliminary action of engaging positioning portions establishes the correct spatial alignment and orientation, ensuring that when the wavelength conversion layers are subsequently placed, they achieve accurate positioning for optimal wavelength conversion efficiency.
3Manufacturing precision
If complex positioning mechanisms are added to improve assembly accuracy, then the positioning precision is improved, but the device complexity and cost increase
Solution Approach 1:
The positioning function is extracted from the wavelength conversion layers and implemented as separate positioning portions on the substrate. This extraction allows the positioning mechanism to be simplified to basic geometric features rather than complex integrated systems, achieving high positioning precision while maintaining structural simplicity and reducing manufacturing cost.
4Object-affected harmful factors
If traditional assembly methods are used without positioning portions, then the structure is simple, but vibration and noise increase due to poor positioning
Solution Approach 1:
The structure is segmented into positioning portions and wavelength conversion layers as separate functional elements. The positioning portions are engaged first to establish stable alignment, and the wavelength conversion layers are placed afterward. This segmentation ensures firm positioning that reduces vibration and noise while maintaining overall structural simplicity.
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 solution enhances the light conversion efficiency of the wavelength conversion element, resulting in improved image quality for the projection apparatus by ensuring accurate positioning and reduced vibration and noise.
Implementation Method 1
The wavelength conversion element is generally disposed on a transmission path of an excitation beam provided by the light source in order to convert the excitation beam (such as the blue excitation beam) into the beam with other colors (such as yellow and green)
Data Source
AI summary
A wavelength conversion element includes a substrate and a wavelength conversion layer. The substrate has a bearing surface and a first positioning portion, and the first positioning portion is located on the bearing surface. The wavelength conversion layer is disposed on the bearing surface and has a second positioning portion corresponding to the first positioning portion, and the second positioning portion is adapted to engage with the first positioning portion. A projection apparatus having the wavelength conversion element is also provided. The disclosure is able to improve assemble accuracy and light conversion efficiency of the wavelength conversion element.