Polygonal Optical Module for Magnetic Vibration Stabilization
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Solution Overview
Problem
Miniaturized optical systems in electronic devices face challenges in maintaining image quality due to shocks and vibrations, leading to blurry images and videos, despite advancements in autofocus and optical image stabilization.
Innovation Solution
An optical system with a polygonal fixed portion and movable optical elements, driven by a magnetic mechanism, includes a supporting assembly and damping system to stabilize movement and correct for vibrations, enhancing image quality through precise positioning and stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the optical system is miniaturized to fit electronic devices, then the device size is reduced, but image quality deteriorates due to shocks and vibrations causing blurry images
Solution Approach 1:
The optical system is divided into a fixed portion and a movable portion. The movable portion contains the optical element that can be independently actuated by the driving mechanism, while the fixed portion provides structural support and housing. This segmentation allows the optical element to be stabilized separately from the rest of the miniaturized optical system, compensating for vibrations without increasing overall device size.
Solution Approach 2:
A supporting assembly is introduced as an intermediary component between the movable portion and the fixed portion. This supporting assembly provides a stable mounting structure for the optical element, isolating it from vibrations and shocks affecting the miniaturized optical system. The intermediary structure enables vibration compensation while maintaining the compact form factor required for electronic devices.
2Reliability
If autofocus and optical image stabilization mechanisms are added to improve image quality, then the device complexity increases
Solution Approach 1:
The autofocus and optical image stabilization functions are merged into a single integrated structure. The movable portion can be actuated along the optical axis for autofocus while simultaneously being capable of perpendicular movement for vibration compensation. This merging of functions into one compact mechanism reduces overall system complexity compared to having separate autofocus and stabilization systems.
Solution Approach 2:
The driving mechanism is designed with multi-functionality, capable of actuating the movable portion in multiple directions (along the optical axis for autofocus and perpendicular to the optical axis for vibration compensation). This universal actuator performs both autofocus and optical image stabilization functions, reducing the number of separate components needed and simplifying the overall optical system structure.
3Manufacturing precision
If a polygonal fixed portion structure is used with specific geometric constraints, then manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The fixed portion employs an asymmetric polygonal structure where adjacent sides are not parallel, creating a unique geometric configuration. This asymmetric design provides stable mounting surfaces for the supporting assembly while being straightforward to manufacture using standard machining processes. The specific angular relationships in the polygonal structure facilitate precise positioning without requiring complex manufacturing procedures.
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 system effectively compensates for device shakes and vibrations, ensuring sharper images and videos by stabilizing optical elements and maintaining focus, thereby improving image quality in miniaturized devices.
Implementation Method 1
driven by a magnetic mechanism
Implementation Method 2
The supporting assembly is connected to the movable portion and the fixed portion... compensates for the deviation of the image caused by shaking or impact
Data Source
AI summary
An optical system includes an optical module with a main axis is provided. The optical module includes a fixed portion, a movable portion, a driving mechanism, and a supporting assembly. The movable portion is connected to an optical element and is movable relative to the fixed portion. The driving mechanism drives the movable portion to move relative to the fixed portion. The supporting assembly is connected to the movable portion and the fixed portion. When viewed along a direction that is parallel with the main axis, the fixing portion is a polygonal structure with a first side, a second side, a third side, and a fourth side. The first side is parallel with the third side, the second side is parallel with the fourth side, and the first side is not parallel with the second side.