Camera Module Carrier Layout for Variable Aperture Assembly
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Solution Overview
Problem
The assembly of a variable aperture in a lens for electronic devices such as mobile phones and tablets is difficult, making it challenging to achieve high-quality image shooting effects similar to single-lens reflex cameras.
Innovation Solution
A camera module design where the variable aperture is independent of the lens, allowing both to move in the optical axis direction for focusing, with a drive structure to adjust the aperture's light incoming hole, and an image stabilization mechanism to reduce shaking impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the variable aperture is integrated into the lens assembly, then the image shooting quality can be improved, but the assembly difficulty increases and miniaturization becomes challenging
Solution Approach 1:
The patent divides the camera module into separate functional components: the lens assembly and the variable aperture assembly are independently designed and manufactured, then assembled together through the focusing mechanism. This segmentation allows each component to be optimized separately, reducing overall assembly complexity while maintaining image quality.
Solution Approach 2:
The carrier structure serves multiple functions: it supports both the lens and the variable aperture, provides the focusing movement path, and enables independent adjustment of the aperture. This multi-functionality reduces the number of separate components needed, simplifying the overall assembly process.
2Manufacturing precision
If the variable aperture and lens are assembled together with high precision, then high-quality images can be captured, but the assembly process becomes difficult and time-consuming
Solution Approach 1:
The variable aperture is pre-assembled onto the carrier along with the lens in a standardized configuration. This preliminary assembly creates a modular unit that can be installed as a complete assembly, reducing the need for precise field adjustments and improving production efficiency.
Solution Approach 2:
The carrier acts as an intermediary structure that standardizes the mounting interface between the variable aperture and the lens assembly. By providing a common reference frame, it simplifies the alignment process and enables more efficient assembly operations.
3Volume of moving object
If the camera module is miniaturized for small electronic devices, then portability is improved, but the assembly of aperture and lens becomes more difficult
Solution Approach 1:
The variable aperture is positioned within the optical path of the lens, with both components mounted on the same carrier structure. This nested arrangement allows the aperture to be integrated into the existing lens assembly footprint, minimizing the overall camera module volume while maintaining functional independence.
Data Source
AI summary
A camera module includes a camera motor, a lens, an image sensor assembly, and a variable aperture. The camera motor includes a focusing part, and the focusing part includes a base, a carrier, and a driver. The driver is fastened to the base and is configured to drive the carrier to move relative to the base in a specified direction. The carrier forms an installation hole in a specified direction. The lens is fastened in the installation hole, and an optical axis of the lens is parallel to the specified direction. The variable aperture is fastened on the carrier and located on a light incoming side of the lens. The image sensor assembly is disposed at one end of that is of the base and that is away from the variable aperture. Both of the variable aperture and the lens are disposed on the carrier of the focusing part.