Sectional Lens Module Assembly with Threaded Spacer Alignment
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Solution Overview
Problem
The existing lens module assembly process is too simple and lacks stability, making it prone to misassembly and requiring a more robust and convenient method for integrating lens groups within a lens barrel.
Innovation Solution
A sectional lens module structure that uses a thread or clamp fitting mechanism between the lens barrel and spacer to securely assemble and align lens groups, allowing for easy adjustment and correction of misassembly, enhancing the stability and coaxial alignment of lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lenses are installed from the bottom of the lens barrel and fixed in the lens barrel using a simple integrated structure, then the manufacturing process is simple, but the assembly stability and reliability are insufficient and prone to misassembly
Solution Approach 1:
The lens module is divided into multiple independent components: lens groups, light shading sheets, spacers, and a lens barrel. Each component can be manufactured separately and then assembled using thread or clamp fitting mechanisms, which improves assembly stability while maintaining manufacturing simplicity through modular production.
2Device complexity
If an integrated lens barrel structure is used with simple fixing, then the device complexity is reduced, but the alignment precision and coaxial accuracy of lenses deteriorate
Solution Approach 1:
Light shading sheets and spacers are introduced as intermediary components between the lens groups and the lens barrel. These intermediaries provide precise positioning features that ensure coaxial alignment of lenses while maintaining a relatively simple overall structure through their integrated design.
3Ease of operation
If a simple integrated lens barrel is used, then the ease of operation is improved, but the ability to correct misassembly and adjust alignment is reduced
Solution Approach 1:
The lens module employs thread and clamp fitting mechanisms that allow for dynamic adjustment and disassembly. The clamps can be loosened to remove or reposition lens groups, and the thread fittings enable height adjustment of light shading sheets, providing correction capability while maintaining ease of initial assembly.
Data Source
AI summary
A lens module, including: a lens barrel, a first lens group having at least one lens and accommodated in the lens barrel, a spacer provided at an end of the lens barrel close to an image side, and a second lens group having at least one lens and accommodated in the spacer, the lens barrel includes a first barrel wall forming a light aperture, a second barrel wall bending and extending from the first barrel wall, the lens barrel further includes a first inner wall and a first outer wall corresponding to the first inner wall, the spacer includes a second inner wall and a second outer wall corresponding to the second inner wall, the lens barrel is fitted and fixed with the spacer. The lens module provided by the present disclosure can be assembled section by section, which is more convenient and makes the module structure more stable.