Optical Driving Mechanism Magnetic Interference Shield
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dual-lens camera systems experience magnetic interference between lens-driving modules, affecting focus speed and accuracy.
Innovation Solution
A driving mechanism for optical elements that includes a fixed part, a movable part, and a driving assembly, with a reinforcing sheet and circuit assembly that are electrically independent and positioned to minimize magnetic interference.
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 structure is compact, but magnetic interference occurs between the magnets of the two modules, adversely affecting focus speed and accuracy
Solution Approach 1:
A non-magnetic reinforcing sheet is introduced as an intermediary component between the first and second lens-driving modules. This reinforcing sheet serves as a magnetic field barrier that blocks magnetic interference between the two modules while maintaining the compact dual-lens structure. The reinforcing sheet is embedded in the housing and positioned to face the circuit assembly, creating a physical and magnetic barrier without requiring increased device volume.
2Object-affected harmful factors
If a reinforcing sheet is embedded in the housing to block magnetic interference, then magnetic interference is prevented, but the device structure becomes more complex
Solution Approach 1:
The reinforcing sheet serves multiple functions simultaneously: it reinforces the housing structure, blocks magnetic interference between lens-driving modules, and provides a mounting surface for the circuit assembly. By embedding the reinforcing sheet in the housing, the patent eliminates the need for separate magnetic shielding components, thereby preventing magnetic interference without significantly increasing structural complexity.
3Measurement precision
If the circuit assembly and reinforcing sheet are positioned to minimize magnetic interference, then focus accuracy is improved, but the manufacturing process becomes more difficult
Solution Approach 1:
The reinforcing sheet is pre-formed with through holes and embedded in the housing before the circuit assembly is installed. This preliminary preparation of the reinforcing sheet allows for precise positioning and alignment, ensuring that the circuit assembly and reinforcing sheet are correctly positioned to minimize magnetic interference. The pre-formed structure simplifies the overall manufacturing process by providing clear assembly guidelines and reducing the need for complex post-assembly adjustments.
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 prevents magnetic interference, enhancing the focus speed and accuracy of dual-lens camera systems while improving the structural reliability and mechanical strength of the driving mechanism.
Implementation Method 1
The driving assembly has a coil and a magnetic element, wherein the coil is disposed on the movable part, and the magnetic element is disposed between the two columns
Data Source
AI summary
A driving mechanism for moving an optical element is provided. The driving mechanism includes a fixed part, a movable part, and a driving assembly. The movable part is movably connected to the fixed part for holding the optical element. The driving assembly is configured for moving the movable part relative to the fixed part.