Optical Element Drive Assembly for Compact AF and OIS
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Solution Overview
Problem
The challenge in modern electronic devices is to reduce the size of optical systems while maintaining durability and functionality for auto focus and optical image stabilization.
Innovation Solution
An optical element driving mechanism utilizing a support assembly with magnetic elements and a coil to enable movement of optical elements relative to a fixed portion, allowing for miniaturization and enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional optical systems are used in modern electronic devices, then auto focus and optical image stabilization functions can be achieved, but the device size increases and durability decreases
Solution Approach 1:
The patent implements nesting by placing the coil assembly within the magnetic element assembly, and positioning the optical element within the support assembly that contains all driving components. This nested arrangement allows the optical system to achieve AF and OIS functions while minimizing overall volume and improving durability through compact integration.
2Volume of moving object
If the optical system size is reduced to meet modern device requirements, then device portability improves, but the complexity of achieving reliable auto focus and image stabilization increases
Solution Approach 1:
The patent applies multi-functionality by designing the support assembly to simultaneously provide structural support, magnetic field generation through integrated magnetic elements, and coil-driven actuation for both auto focus and optical image stabilization. This unified structure reduces overall system complexity while maintaining compact size.
3Volume of moving object
If magnetic elements and coil are arranged in overlapping configurations, then the optical system achieves miniaturization, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the magnetic system into multiple discrete magnetic elements (first magnetic element, second magnetic element, third magnetic element) with specific spatial relationships. This segmentation allows for modular manufacturing and assembly, reducing the overall manufacturing precision requirements compared to a monolithic magnetic structure while enabling compact overlapping arrangements.
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
Achieves miniaturization and improved durability of optical systems, enabling functions like auto focus and optical image stabilization with reduced size and increased resilience.
Implementation Method 1
The driving assembly comprises a coil, a first magnetic element corresponding to the coil, and a second magnetic element corresponding to the coil
Data Source
AI summary
An optical element driving mechanism used for driving an optical element is provided. The optical element driving mechanism includes a fixed portion and a support assembly. The optical element is movable in a first dimension relative to the fixed portion through the support assembly.