Multi-group Lens Assembly with Adjustable Gaps
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Solution Overview
Problem
Traditional integrated lens assemblies face challenges in achieving high imaging quality due to cumulative errors and limited adjustability, especially when multiple lenses are used, which affects the yield and precision of camera modules.
Innovation Solution
A multi-group lens assembly is introduced, comprising at least two group units with adjustable gaps and connection mediums, allowing for calibration and stable assembly, enabling the formation of a multi-lens optical system with improved precision and yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple lenses are assembled in a traditional integrated lens assembly, then the imaging quality requirements can be met, but cumulative errors increase and manufacturing precision deteriorates
Solution Approach 1:
The lens assembly is divided into multiple independent lens groups, each group being a separate assembly unit. This segmentation allows each group to be manufactured and adjusted independently, preventing cumulative errors from affecting the entire system. Each lens group can be optimized separately while maintaining overall imaging quality.
Solution Approach 2:
The lens groups are designed with adjustable positions relative to each other, allowing dynamic adjustment during assembly and calibration. This enables fine-tuning of each group's position to compensate for manufacturing variations, thereby maintaining high manufacturing precision even with multiple lenses.
2Productivity
If lenses are sequentially fixed in the lens barrel, then the lens assembly is formed, but adjustability is limited and productivity decreases
Solution Approach 1:
By dividing the lens assembly into independent lens groups that can be assembled separately and then combined, the manufacturing process becomes more efficient. Each group can be pre-assembled and tested independently, improving overall productivity and yield while maintaining adjustability within each group.
Solution Approach 2:
The lens groups incorporate adjustable mechanisms that allow positioning adjustments after initial assembly. This dynamic adjustability enables calibration to compensate for manufacturing variations, improving both productivity through standardized assembly processes and ease of operation through post-assembly tuning.
3Measurement precision
If the lens assembly is mounted on the lens assembly holder, then the camera module is assembled, but AA calibration effectiveness is reduced
Solution Approach 1:
The lens assembly is segmented into independent lens groups that can be calibrated separately before final mounting. This segmentation allows AA calibration to be performed on each group individually, improving measurement precision without requiring complex adjustments of the entire assembled unit.
Solution Approach 2:
The lens groups are designed with adjustable mounting features that enable precise positioning during AA calibration. This dynamic adjustability allows each lens group to be independently calibrated for optimal alignment, enhancing measurement precision while the modular structure actually simplifies the overall mounting process.
Data Source
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AI summary
A multi-group lens assembly (10), a camera module (100), and an electronic device (200) therefore are provided. The multi-group lens assembly (10) includes at least two group units (11 and 12). At least a first gap (15) is provided between the at least two adjacent group units (11 and 12) to compensate a difference between the multi-group lens assembly (10) and an optical design system, thus allowing an optical system of the multi-group lens assembly conform to the optical design system of the present invention.