Lens Module Concentricity via Integrated Barrel and Lens Interfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Achieving high concentricity between the lens group and the holder in lens modules for electronic devices, such as cameras and mobile phones, is challenging during the manufacturing process, affecting the quality of images captured.
Innovation Solution
A lens module design featuring a lens barrel with integrated holders and a lens group where each lens has specific engaging and jointing surfaces, such as concave and convex portions, to ensure precise alignment and coaxiality, preventing misalignment and enhancing concentricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional manufacturing processes are used for assembling lens groups and holders, then manufacturing complexity is reduced, but concentricity between lens groups and holder deteriorates
Solution Approach 1:
The patent merges the holder structure with the lens group by integrating the first holder and second holder as unified components that cooperatively support multiple lens groups. This integration ensures that the lens groups are automatically positioned concentrically relative to the holder, resolving the concentricity issue without requiring complex separate alignment mechanisms.
Solution Approach 2:
The patent introduces engaging portions and jointing surfaces as intermediary structures between the holder and lens groups. These intermediary features act as precision positioning interfaces that maintain concentricity during assembly, allowing conventional manufacturing processes to achieve high precision alignment.
2Manufacturing precision
If precision alignment features are added to ensure concentricity, then concentricity improves, but manufacturing complexity increases
Solution Approach 1:
The engaging portions and jointing surfaces are designed to enable self-alignment during assembly. When lens groups are installed into the holder, the complementary geometric features automatically guide them into concentric positions without requiring complex external alignment tools or procedures, thus maintaining ease of manufacture.
Solution Approach 2:
The patent employs asymmetric engaging portions and jointing surfaces with specific geometric configurations that provide unique orientation and positioning. This asymmetric design ensures that components can only be assembled in the correct concentric orientation, eliminating the need for complex alignment procedures while improving concentricity.
Data Source
AI summary
A lens module includes a lens barrel having a top wall that has a bottom surface, and a lens group received by the lens barrel. The lens group includes a first lens adjacent to the top wall and a second lens attached to the first lens. A first complementary configuration is arranged between the first lens and the top wall of the lens barrel for ensuring a concentricity between the lens group and the lens barrel, and a second complementary configuration is arranged between the first lens and the second lens for ensuring a concentricity between the first lens and the second lens.