Camera Module Anti-Shake Mechanism via Inverted Housing Tilt
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Solution Overview
Problem
Traditional anti-shake technologies for camera modules in mobile devices require larger lens diameters to compensate for image shifts during hand shake, leading to optical issues such as image blur and increased complexity in lens design.
Innovation Solution
An anti-shake mechanism comprising a support plate, a printed circuit board, a support column, a tilt angle detection mechanism, an angle adjustment mechanism, and a driving apparatus, which allows the camera module to tilt in the opposite direction to compensate for hand shake, maintaining the lens's position relative to the chip and improving image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lens diameter is increased to cover the imaging area when the lens moves or tilts relatively, then the anti-shake compensation capability is improved, but the device complexity and optical quality deteriorate
Solution Approach 1:
The system separates the anti-shake function into two independent parts: the camera module housing (including lens and chip) and the support plate assembly. The angle adjustment mechanism adjusts the support plate angle independently, while the lens remains fixed relative to the chip, eliminating the need for a large lens diameter to cover tilt areas.
Solution Approach 2:
Instead of moving or tilting the lens assembly relative to the chip to compensate for shake, this invention tilts the entire camera module housing in the opposite direction of the shake. The lens and chip remain fixed relative to each other, but the whole assembly rotates around the support column to counteract the shake effect.
2Reliability
If the lens diameter is increased to cover the imaging area when the lens moves or tilts relatively, then the anti-shake compensation capability is improved, but the imaging quality deteriorates due to blur
Solution Approach 1:
The invention inverts the traditional approach by keeping the lens fixed relative to the chip and instead tilting the entire camera module housing. This ensures that the optical path remains aligned and the imaging quality is maintained while still achieving anti-shake compensation through housing rotation.
Solution Approach 2:
The support plate acts as an intermediary between the fixed camera module housing and the adjustable angle mechanism. It allows the housing to be tilted at various angles relative to the printed circuit board while maintaining the internal fixed relationship between lens and chip, thus preserving imaging quality.
3Reliability
If the lens diameter is increased to cover the imaging area, then the anti-shake compensation capability is improved, but the weight and size of the device increase
Solution Approach 1:
The system divides the camera module into a fixed lens-chip assembly and a separately adjustable support plate mechanism. This segmentation allows the lens to remain small and lightweight while the anti-shake function is achieved through the independent angle adjustment of the support plate and housing tilt.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables effective anti-shake functionality at larger angles, enhances imaging quality by maintaining the lens's position relative to the chip, and simplifies optical design by allowing a smaller lens diameter.
Implementation Method 1
a tilt angle detection mechanism, configured to detect a tilt angle of the support plate
Implementation Method 2
a driving apparatus connected to the tilt angle detection mechanism and the angle adjustment mechanism, respectively, where the driving apparatus receives a tilt angle collected by the tilt angle detection mechanism, and drives, according to the tilt angle, the angle adjustment mechanism to enable the support plate to rotate around the support column
Data Source
AI summary
An anti-shake mechanism, a camera module, and an electronic device are provided. The anti-shake mechanism includes: a support plate; a first printed circuit board; a support column fixedly installed on the first printed circuit board; a tilt angle detection mechanism, configured to detect a tilt angle of the support plate and a tilt direction of the support plate; an angle adjustment mechanism, connected between the support plate and the first printed circuit board; and a driving apparatus connected to the tilt angle detection mechanism and the angle adjustment mechanism, respectively. An end of the support column away from the first printed circuit board contacts the support plate. The driving apparatus receives an angle signal collected by the tilt angle detection mechanism, and drives the angle adjustment mechanism to enable the support plate to rotate around the support column.