Optical Element Driving Mechanism for Compact Multi-Axis Stabilization
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Solution Overview
Problem
Modern electronic devices with image-capturing and video-recording functions face challenges in reducing the size of optical element driving mechanisms while maintaining durability and achieving effective optical image stabilization.
Innovation Solution
The optical element driving mechanism incorporates a fixed portion, first and second movable portions, and corresponding driving assemblies, allowing for distinct movements in different dimensions, including rotational and circular motions, utilizing magnetic elements and guiding assemblies to stabilize and position optical elements, thereby reducing size and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the driving mechanism is made smaller to meet modern device requirements, then the size is reduced, but the durability and stability may deteriorate
Solution Approach 1:
The driving mechanism is divided into two independent driving assemblies: a first driving assembly for driving the first movable portion along the optical axis, and a second driving assembly for driving the second movable portion in a direction different from the optical axis. This segmentation allows each assembly to be optimized independently, reducing overall size while maintaining stability and durability through specialized design of each subsystem.
2Volume of moving object
If the driving mechanism is made smaller, then the device becomes more compact, but the complexity of the mechanism may increase
Solution Approach 1:
The first and second movable portions are integrated into a single movable structure that can perform both optical axis movement and off-optical-axis movement. This merging reduces the number of separate components needed, thereby reducing overall size while managing complexity through a unified design approach rather than multiple independent mechanisms.
Solution Approach 2:
The movable portions are designed to serve multiple functions: they can move along the optical axis for focus adjustment and also move in directions different from the optical axis for optical image stabilization. This multi-functionality eliminates the need for separate mechanisms for each function, reducing size and simplifying the overall structure.
3Volume of moving object
If the driving mechanism is made smaller, then the device is more compact, but the optical image stabilization effectiveness may worsen
Solution Approach 1:
The mechanism incorporates movement in multiple dimensions: the first movable portion moves along the optical axis (one dimension), while the second movable portion moves in directions different from the optical axis (additional dimensions). This multi-dimensional movement capability enables effective optical image stabilization by compensating for disturbances in multiple directions, maintaining stabilization effectiveness despite the reduced overall size of the mechanism.
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 design achieves miniaturization of optical element driving mechanisms while providing effective optical image stabilization, enhancing the durability and performance of electronic devices with image-capturing capabilities.
Implementation Method 1
a first driving assembly (50) used for driving the first movable portion (30) to move in a first dimension relative to the fixed portion (F)
Implementation Method 2
a second driving assembly (60) used for driving the second movable portion (40) to move in a second dimension relative to the fixed portion (F)
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a first movable portion, a second movable portion, a first driving assembly, and a second driving assembly. The first movable portion is movable relative to the fixed portion. The second movable portion is used for holding an optical element having a main axis, and is movable relative to the first movable portion. The first driving assembly is used for driving the first movable portion to move in a first dimension relative to the fixed portion, and the second driving assembly is used for driving the second movable portion to move in a second dimension relative to the fixed portion. The first dimension and the second dimension are different.