Camera Module Lens Barrel Alignment via Limiting Portion
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Solution Overview
Problem
The assembly process of camera modules is complex and lacks effective inspection methods for lens alignment, affecting the quality of the final product.
Innovation Solution
A camera module design that includes a lens holder with a limiting portion and an adjustable lens barrel, allowing passive alignment of the first lens set and active alignment of the second lens set, with an image sensing device and shading elements to simplify assembly and inspect optical quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the assembly process is simplified, then the manufacturing complexity is reduced, but the inspection capability for lens alignment may be compromised
Solution Approach 1:
The lens barrel is designed with a limiting portion that pre-establishes the positional relationship between the first lens set and second lens set before final assembly. This preliminary structural arrangement enables automatic alignment during assembly while maintaining inspection capabilities through the built-in limiting geometry.
Solution Approach 2:
The limiting portion acts as an intermediary structure that mediates between the lens holder and lens barrel, establishing a controlled gap that enables both simplified assembly through automatic positioning and inspection through defined optical paths.
2Manufacturing precision
If the lens barrel position is made adjustable, then the alignment precision is improved, but the assembly complexity increases
Solution Approach 1:
The lens barrel is designed with a dynamic adjustable position within the limiting portion, allowing it to move along the optical axis to different locations. This dynamic capability enables precise alignment adjustment during assembly while the limiting portion maintains structural constraints to prevent excessive complexity.
Data Source
AI summary
A camera module including a lens holder, a lens barrel, a first lens set, a second lens set, and an image sensing device is provided. The lens holder includes a limiting portion. The lens barrel is disposed in the limiting portion. The image sensing device has a common optical axis, and enables the second lens set to be located between the first lens set and the image sensing device. A position of the lens barrel is adjustable in the limiting portion when assembling the camera module, and the lens barrel is disposed on the lens holder enabling the limiting portion to be located on a periphery of the lens barrel, and a gap is arranged between the limiting portion and the lens barrel such that the position of the lens barrel is adjustable along a direction perpendicular to the optical axis.