Camera Module Variable Aperture Fixed Lens Group Design
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Solution Overview
Problem
Existing camera modules in electronic devices face a challenge in balancing aesthetic appearance and photographing quality, as the optical cover plate degrades the aesthetic appearance when the variable aperture component moves for functions like anti-shake and autofocus.
Innovation Solution
A camera module design with a first lens group, a second lens group, and a variable aperture component where the aperture hole size is adjustable, and both the base and first lens group are fixed relative to the optical cover plate, while the second lens group is movably disposed, maintaining consistent distances and enabling anti-shake and autofocus functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the variable aperture component is disposed in the camera module to adjust light inlet amount, then photographing quality is improved, but the optical cover plate degrades aesthetic appearance
Solution Approach 1:
The camera module is divided into two distinct groups: a first lens group that remains fixed relative to the optical cover plate to maintain aesthetic appearance, and a second lens group that is movable to provide anti-shake and autofocus functions. The variable aperture component is integrated with the first lens group, ensuring it also remains fixed relative to the optical cover plate.
Solution Approach 2:
The second lens group is designed to be movable relative to the first lens group, enabling dynamic adjustment for anti-shake compensation and autofocus while the first lens group and variable aperture component remain stationary relative to the optical cover plate, thus maintaining consistent aesthetic appearance.
2Measurement precision
If the second lens group is movably disposed to implement anti-shake and autofocus, then photographing quality is improved, but the distance between components varies affecting aesthetic appearance
Solution Approach 1:
The lens system is segmented into a fixed first lens group (with variable aperture component) that maintains constant distance from the optical cover plate, and a movable second lens group that provides optical functions without affecting the overall aesthetic appearance.
Solution Approach 2:
The first lens group serves as a stable intermediary structure that remains fixed relative to the optical cover plate, while the second lens group moves relative to the first lens group. This intermediary arrangement allows the movable components to perform their functions without directly affecting the distance relationship between the optical cover plate and the variable aperture component.
Data Source
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AI summary
Embodiments of this application provide a camera module and an electronic device. The camera module includes a first lens group, a second lens group, and a variable aperture component, where the variable aperture component includes a base and a plurality of blades, the blades are rotationally connected to the base and enclose to form an aperture hole having an adjustable size, the first lens group is fixedly connected to the base, and the aperture hole is located in a direction of an optical axis of the first lens group; where both the base and the first lens group are fastened relative to an optical cover plate that covers on an object side of the first lens group in the electronic device; and the second lens group is located on an image side of the first lens group and is movably disposed relative to the first lens group. The camera module of this application satisfies people's requirement on photographing quality of the camera module, and satisfies people's requirement on aesthetic appearance of the electronic device.