Imaging Lens Assembly With Trimmed Surfaces for Miniaturization
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Solution Overview
Problem
Existing imaging lens assembly modules for portable electronic devices face challenges in miniaturization while maintaining high imaging quality due to integrated barrel and base portions that occupy significant space.
Innovation Solution
The imaging lens assembly module features a baseplate and an imaging lens assembly with non-circular trimmed surfaces on lens elements and barrel portions, allowing for an integrally formed barrel and base portion, which are non-circular along the optical axis, facilitating miniaturization and reducing assembly errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the barrel portion and base portion are formed integrally with non-circular trimmed surfaces, then the imaging lens assembly module achieves miniaturization and reduced assembly errors, but the manufacturing complexity increases
Solution Approach 1:
The patent applies asymmetry by trimming the lens element and barrel portion to have non-circular cross-sections with flattened surfaces. This asymmetric design allows the components to be positioned more compactly within the housing, reducing the overall module volume while the standardized trimming process maintains manufacturing feasibility
Solution Approach 2:
The patent merges the barrel portion and base portion into a single integrally formed component. This consolidation eliminates the need for separate assembly of these parts, reducing assembly steps and potential alignment errors, while the integral structure optimizes space utilization for miniaturization
2Manufacturing precision
If the first trimmed surfaces and second trimmed surfaces are positioned to satisfy L1≤L2, then assembly precision is improved and alignment errors are reduced, but the design constraints increase
Solution Approach 1:
The patent applies preliminary action by pre-positioning the trimmed surfaces of the lens element and barrel portion during the manufacturing stage. The trimming operation creates flat surfaces that are预先 aligned to satisfy the L1≤L2 relationship, ensuring that when components are assembled, they automatically achieve precise alignment without requiring additional adjustment operations
Solution Approach 2:
The asymmetric trimming creates specific geometric relationships between the lens element and barrel portion. By removing material to create non-circular cross-sections with controlled dimensions, the design ensures that the trimmed surfaces naturally satisfy the L1≤L2 constraint, improving assembly precision through geometric determination rather than post-assembly adjustment
Data Source
AI summary
The present disclosure provides an imaging lens assembly module including a baseplate and an imaging lens assembly. The imaging lens assembly includes an imaging lens set and a barrel. The imaging lens set includes at least one lens element. The at least one lens element includes two first trimmed surfaces. The barrel includes a barrel portion and a base portion. The barrel portion has a first inner surface, and the barrel portion includes two second trimmed surfaces. The barrel portion and the base portion are formed integrally, a shortest distance is defined between the first trimmed surfaces of the lens element, a shortest distance is defined between the second trimmed surfaces of the barrel portion, and the optical axis passes vertically through the shortest distance between the first trimmed surfaces and the shortest distance between the second trimmed surfaces.