Multi-Bracket Optical Image Stabilization for Large-Angle Lens Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical image stabilization modules have a limited image stabilization angle and weak structural strength, which restricts their ability to stabilize larger and heavier lenses, and makes them prone to failure upon impact.
Innovation Solution
The optical image stabilization module features a multi-bracket structure with independent rotation axes, allowing for large-angle image stabilization. This structure includes a first and second bracket with connection assemblies that enable rotational connections about perpendicular axes, and driving assemblies that compensate for angular variations caused by device shakes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suspension wire structure is used to support the lens, then the lens can be supported, but the image stabilization angle is limited and structural strength is weak
Solution Approach 1:
The patent divides the support structure into multiple independent brackets (first bracket, second bracket, third bracket) connected by connection assemblies. Each bracket performs a specific function: the first bracket supports the lens module, the second bracket provides rotational connection for pitch stabilization, and the third bracket provides rotational connection for roll stabilization. This segmentation allows the system to achieve both structural strength and large-angle stabilization capability.
Solution Approach 2:
The patent transitions from a single-degree-of-freedom suspension wire structure to a two-degree-of-freedom rotational mechanism. By adding rotational connections about two perpendicular axes (pitch axis and roll axis), the system expands from one-dimensional horizontal movement to two-dimensional angular stabilization, enabling large-angle image stabilization while maintaining structural integrity.
2Manufacturing precision
If the lens size and weight are increased to meet optical requirements, then optical quality improves, but the suspension wire structure cannot support the increased weight
Solution Approach 1:
The patent replaces the suspension wire mechanical system with a rotational bracket system. Instead of relying on wire tension to support the lens, the new system uses rigid brackets with rotational connections that can bear the weight of larger, heavier lenses. The connection assemblies provide both support and rotational freedom, enabling the structure to handle increased lens mass while maintaining stabilization functionality.
3Ease of operation
If the suspension wire structure is used, then the lens can move horizontally, but the structure is prone to fracture upon impact
Solution Approach 1:
The patent designs a robust bracket-based support structure that inherently resists impact forces before they can cause damage. The rigid brackets and connection assemblies are configured to absorb and distribute impact stresses, preventing the kind of catastrophic failure that occurs with suspension wires. The structure is built to withstand shocks and drops, cushioning the lens module from damage.
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
The module achieves large-angle optical image stabilization while maintaining the original field of view, and its robust structure can support larger and heavier lenses, enhancing device reliability against mechanical stress.
Implementation Method 1
A magnetic field generated by energizing the coil 022 enables the optical image stabilization module to move horizontally to offset a shake
Data Source
AI summary
An optical image stabilization module and an electronic device. The optical image stabilization module includes a first bracket, a second bracket, and a third bracket that are nested in sequence from inside to outside, and an optical lens module fixed on the first bracket. A first connection assembly is arranged between the first bracket and the second bracket, to enable the first bracket and the second bracket to form a rotational connection about a first rotation axis. A second connection assembly is arranged between the second bracket and the third bracket, to enable the second bracket and the third bracket to form a rotational connection about a second rotation axis. The first rotation axis, the second rotation axis, and an optical axis of the camera are perpendicular to each other.