Optical System Vibration Compensation via Dual Driving Assemblies
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Solution Overview
Problem
Conventional electronic devices with camera modules face challenges in effectively compensating for complex vibrations, leading to blurred images due to inadequate shockproofing mechanisms, which are not adequately addressed by existing auto focusing and optical image stabilization systems.
Innovation Solution
An optical system comprising a first optical member holder, a second optical member holder, and a first driving assembly, where the first driving assembly moves the first optical member holder relative to a fixed part, and includes an elastic member and a magnetic isolation member to align the optical axes and stabilize images during vibrations, utilizing plastic and glass optical members for efficient movement and interference prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional auto focusing and optical image stabilization systems are used, then basic shockproof function is provided, but complex vibrations cannot be effectively compensated leading to blurred images
Solution Approach 1:
The optical system divides the shockproof mechanism into multiple independent driving assemblies (first driving assembly for vertical direction, second driving assembly for horizontal direction). Each assembly handles specific vibration directions separately, enabling effective compensation of complex vibrations while maintaining manageable system complexity through modular design
Solution Approach 2:
The driving assemblies are designed to perform multiple functions: they enable both auto focusing (vertical movement) and optical image stabilization (horizontal and vertical vibration compensation). This multi-functionality resolves the contradiction by achieving comprehensive image stability without requiring separate dedicated mechanisms for each function
2Reliability
If multiple driving assemblies are added to compensate for complex vibrations, then image stabilization is improved, but device complexity increases
Solution Approach 1:
The patent merges the auto focusing function and optical image stabilization function into a unified driving assembly system. The first driving assembly handles both vertical focusing and vertical stabilization, while the second driving assembly handles horizontal stabilization, reducing overall system complexity compared to having completely separate mechanisms
Solution Approach 2:
The system employs dynamic control where the driving assemblies can independently adjust their operation based on detected vibration characteristics. The control unit dynamically coordinates between the two driving assemblies to handle different vibration scenarios, optimizing performance while managing complexity through adaptive rather than static design
3Object-generated harmful factors
If magnetic isolation members are introduced to prevent interference, then magnetic interference is reduced, but device complexity increases
Solution Approach 1:
Magnetic isolation members are introduced as intermediary elements positioned between the driving assemblies and other magnetic components. These isolation members effectively block magnetic interference paths without requiring fundamental redesign of the driving assembly structure, thus reducing magnetic interference with minimal impact on overall device 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
The optical system effectively stabilizes images by aligning optical axes and compensating for vibrations, enhancing image clarity and enabling both auto focusing and zoom functions while preventing magnetic interference.
Implementation Method 1
the first optical member holder is movably connected to the fixed part through the elastic member
Implementation Method 2
when the auto focusing function is executed, a current is supplied to the coil, and electromagnetic induction occurs between the coil and the corresponding magnets, so that a lens holder affixed to the coil is moved along an optical axis
Implementation Method 3
the optical system further includes a magnetic isolation member, disposed between the first and second driving assemblies
Data Source
AI summary
An optical system is provided and includes a fixed part, a first optical member holder, a second optical member holder and a first driving assembly. The first optical member holder is configured to hold a first optical member and is disposed over the fixed part. The second optical member holder is configured to hold a second optical member and is movably connected to the first optical member holder. The first driving assembly is configured to drive the first optical member holder to move relative to the fixed part.