Optical Element Driving Mechanism for Compact Auto Focus
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Solution Overview
Problem
Modern electronic devices with image-capturing or video-recording functions face challenges in reducing the size of their optical systems while maintaining durability and performance for auto focus (AF) and optical image stabilization (OIS).
Innovation Solution
The optical element driving mechanism includes a movable portion connected to the optical element, a fixed portion, and a driving assembly that enables the movable portion to move relative to the fixed portion, allowing for the miniaturization of the optical system while maintaining durability and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the optical system size is reduced to meet modern device requirements, then the device becomes more compact and portable, but the durability and performance of the optical system deteriorates
Solution Approach 1:
The movable portion is nested within the fixed portion, with the circuit assembly embedded in the fixed portion. The driving assembly is integrated into the movable portion, creating a compact nested structure that reduces overall optical system volume while maintaining functional integrity and durability through systematic spatial organization of components.
Solution Approach 2:
The circuit assembly is merged with the fixed portion, and the driving assembly is merged with the movable portion. This integration eliminates the need for separate mounting structures and connection components, reducing overall system size while improving structural coherence and reliability of the optical system.
2Volume of moving object
If the optical system size is reduced, then the device becomes more compact, but the complexity of arranging components increases
Solution Approach 1:
The optical system is segmented into distinct functional portions: the fixed portion containing the circuit assembly, and the movable portion containing the driving assembly. This segmentation allows for systematic arrangement of components within each portion, reducing the complexity of overall component layout while achieving compact system size.
Solution Approach 2:
The circuit assembly is arranged in a planar configuration within the fixed portion, utilizing two-dimensional space efficiently. The driving assembly is integrated into the movable portion with components arranged along the optical axis and radially, creating a compact three-dimensional layout that reduces system volume without proportionally increasing arrangement complexity.
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 effectively reduces the size of the optical system while enhancing its durability and performance, enabling efficient auto focus and image stabilization in compact electronic devices.
Implementation Method 1
a driving assembly disposed on the first side, the second side, the third side, and the fourth side
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.