Driving Module Resilient Circuit Segment Optical Image Stabilization
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Solution Overview
Problem
Conventional camera and mobile phone optical image stabilization systems face challenges in miniaturization due to the need for suspension wires, which hinder the reduction of device dimensions and can cause image blurriness from vibrations.
Innovation Solution
A driving module with a resilient plate-shaped segment and magnetic elements that allow the lens holder to move horizontally, eliminating the need for suspension wires and enabling miniaturization by using a circuit assembly and magnetic forces for optical image stabilization and auto focus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suspension wires are used to connect the frame and substrate, then the optical image stabilization function is achieved, but the device height along the Z-axis increases
Solution Approach 1:
The patent removes the suspension wire component from the system entirely. Instead of using a suspension wire to connect the frame to the substrate, the invention uses a driving assembly with magnetic elements that can be integrated directly into the substrate, thereby eliminating the Z-axis height increase caused by suspension wires while maintaining the optical image stabilization function.
Solution Approach 2:
The patent replaces the mechanical suspension wire connection with a magnetic field-based driving system. The driving assembly uses magnetic elements and coils to achieve the same stabilization function without the mechanical suspension structure, thus reducing the device height while maintaining reliability.
2Manufacturing precision
If conventional optical image stabilization devices are used, then image quality is improved, but the device dimensions cannot be reduced
Solution Approach 1:
The patent integrates the driving assembly directly into the substrate structure, nesting the magnetic driving components within the existing device footprint. This allows the optical image stabilization function to be achieved without increasing the overall device volume, as the driving mechanism is embedded rather than added as a separate external component.
Solution Approach 2:
The patent transitions from a Z-axis oriented suspension wire structure to an in-plane magnetic driving system that operates within the X-Y plane of the substrate. This dimensional change allows the stabilization function to be achieved without increasing the device height, effectively moving the mechanism from a vertical to a horizontal operational dimension.
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 the device's height along the Z-axis, preventing image blurriness and achieving better image quality while meeting the requirement of miniaturizing electronic devices.
Implementation Method 1
The first segment is resilient, plate-shaped, and movable relative to the fixed portion and the movable portion
Implementation Method 2
its inner coil may interact with a corresponding magnet after passing a current, which allows the lens holder secured to the coil to move along the optical axis of the lens and along a horizontal direction that is perpendicular to the direction of the optical axis
Data Source
AI summary
A driving module is provided. The driving module includes a fixed portion, a movable portion movably connected to the fixed portion and used to hold an optical element having an optical axis, a driving assembly for driving the movable portion to move relative to the fixed portion, and a circuit assembly electrically connected to the driving assembly. The circuit assembly includes a first segment, a second segment, and a third segment. The first segment is resilient, plate-shaped, and movable relative to the fixed portion and the movable portion. The second segment is plate-shaped and affixed on the movable portion, wherein a thickness direction of the first segment is different from a thickness direction of the second segment. The third segment is plate-shaped and affixed on the fixed portion, wherein the second segment is movably connected to the third segment through the first segment.