Lens Driving Module Layout for Five-Axis Image Stabilization
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Solution Overview
Problem
Conventional lens driving devices fail to achieve perfect image stabilization due to limited movement control in directions other than the cross axes and optical axis, resulting in inadequate image stabilization effects in complex environments.
Innovation Solution
A lens driving device with a first and second driving module that allows the lens assembly to move in multiple directions, including translation along the optical axis, perpendicular axes, and rotation around these axes, utilizing a combination of driving assemblies, magnets, and coils to achieve five-axis anti-shake functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional driving device controls lens movement only in directions of cross axes and optical axis, then the device complexity is reduced, but the image stabilization effect deteriorates
Solution Approach 1:
The driving device is divided into a first driving module that controls lens translation along optical axis and perpendicular axes, and a second driving module that controls rotation around cross axes. This segmentation allows each module to specialize in specific movement types, achieving comprehensive five-axis stabilization without requiring a single complex system.
Solution Approach 2:
The patent extends control from traditional two-axis (cross axes) and one-axis (optical axis) movement to five-axis control by adding rotational degrees of freedom around cross axes. This dimensional expansion enables the lens to compensate for complex motion patterns in all relevant directions, significantly improving image stabilization effectiveness.
2Reliability
If the lens assembly is driven to move in multiple directions by first and second driving modules, then the image stabilization effect is improved, but the device complexity increases
Solution Approach 1:
The first driving module serves multiple functions by controlling lens translation along the optical axis and perpendicular axes simultaneously. The second driving module provides universal rotational control around cross axes. This multi-functionality reduces the need for separate specialized components for each movement type, managing complexity while achieving five-axis stabilization.
Solution Approach 2:
The first driving module is nested within the second driving module, with the lens assembly housed in the first module which is in turn housed in the second module. This nested structure allows compact integration of multiple driving functions, reducing overall device complexity while maintaining comprehensive five-axis control capabilities.
3Adaptability or versatility
If the lens assembly can rotate around cross axes and translate along optical axis, then the adaptability to complex environments is improved, but the device complexity increases
Solution Approach 1:
The driving system provides dynamic control by enabling the lens assembly to adapt its movement pattern based on environmental conditions. The independent control of translation along optical axis and rotation around cross axes allows real-time adjustment to various motion patterns encountered in complex environments, enhancing adaptability.
Solution Approach 2:
The combined first and second driving modules create a universal positioning system that can handle multiple types of motion compensation simultaneously. This multi-functional capability allows the device to adapt to diverse environmental challenges including vibration, shock, and various movement patterns without requiring separate specialized systems.
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 device provides enhanced image stabilization by enabling the lens assembly to move in various directions, achieving a five-axis anti-shake function that improves image stabilization effectiveness in complex environments.
Implementation Method 1
The first driving assembly drives the lens assembly to translate along an optical axis, a first axis perpendicular to the optical axis, and a second axis perpendicular to the optical axis
Implementation Method 2
The second driving assembly drives the first driving module to rotate around the third axis and the fourth axis with respect to the second outer frame
Data Source
AI summary
A lens driving device related to the field of driving devices and includes a lens assembly and a driving module for driving the lens assembly to move. The driving module includes a first driving module and a second driving module. The lens assembly is accommodated in the first driving module. The second driving module is sleeved on one side of the first driving module away from the lens assembly. The lens assembly is driven by the first driving module and the second driving module that realize movement in multiple different directions, so the lens assembly accommodated in the first driving module realizes movement in multiple directions, thereby achieving good image stabilization effect.