Lens Driving Mechanism Magnetic Interference Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Magnetic interference between dual-lens camera systems' lens driving modules affects focus speed and accuracy, necessitating a solution to reduce such interference.
Innovation Solution
A lens driving mechanism with strategically positioned magnets and coils, including the use of magnetic permeable elements and multipolar magnets, where the polar directions of adjacent magnets are parallel or perpendicular to the light incident direction to minimize magnetic interference, and the inclusion of magnetic field sensors for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If two lens driving modules are arranged close to each other in dual-lens camera systems, then the device size is reduced, but magnetic interference between the magnets of the two lens driving modules occurs, causing focus speed and accuracy to deteriorate
Solution Approach 1:
A magnetic isolation component is introduced between the first magnet and the second magnet to act as a mediator that blocks or reduces magnetic field interaction. This intermediary element allows the lens driving modules to be arranged close together while preventing harmful magnetic interference between them, thus maintaining both compact size and focus performance
Solution Approach 2:
The harmful magnetic field interaction is extracted or removed from the system by using the magnetic isolation component to block the magnetic field paths between adjacent magnets. This extraction of the harmful effect allows the lens driving modules to operate independently without mutual interference
2Object-affected harmful factors
If magnetic isolation components are added between adjacent lens driving modules, then magnetic interference is reduced, but device complexity increases
Solution Approach 1:
The magnetic isolation function is merged with existing structural components of the lens driving module rather than being added as a completely separate element. By integrating the magnetic isolation capability into the housing or mounting structure, the design reduces overall complexity while still achieving the desired magnetic field blocking effect
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 solution effectively reduces magnetic interference, enhancing the focus speed and accuracy of lenses by optimizing the magnetic field interactions and using sensors for precise control.
Implementation Method 1
The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens.
Implementation Method 2
the lens driving mechanism further includes a magnetic permeable element connected to the first magnet
Data Source
AI summary
A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens. The first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction.