Optical Element Drive Mechanism With Decoupled Multi-Axis Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical element driving mechanisms suffer from mutual interference between movable portions due to a lack of appropriate decoupling designs, affecting stability and control accuracy, and lack designs that provide both guidance and tolerance compensation for smooth movement.
Innovation Solution
The optical element driving mechanism incorporates a first and second connecting element, with movable portions decoupled via balls and guiding elements, and stabilizing components to ensure smooth, independent multi-axis movement and stability, using magnetic and coil interactions for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple independently movable portions are used to achieve multi-axis driving, then the precision of image adjustment is improved, but mutual interference between movable portions occurs affecting stability and control accuracy
Solution Approach 1:
The connecting component is divided into multiple connecting elements (first connecting element, second connecting element, etc.), each responsible for connecting different movable portions to the fixed portion. This segmentation allows independent movement of each movable portion along its designated axis while preventing mutual interference, thus maintaining both high adjustment precision and system stability.
2Strength
If connecting components are designed to support multiple movable portions, then the supporting strength is improved, but mutual interference between movable portions occurs
Solution Approach 1:
The connecting component is segmented into multiple independent connecting elements, where each element connects one movable portion to the fixed portion. This segmentation maintains supporting strength while eliminating mutual interference between movable portions, as each connecting element independently supports its designated movable portion without being affected by movements of other portions.
3Reliability
If guidance structures are added to prevent interference, then the stability is improved, but the smoothness of movement deteriorates due to increased friction
Solution Approach 1:
The guiding function is extracted from traditional friction-based guidance structures and replaced by the geometric configuration of the connecting elements. The connecting elements are designed with specific shapes that naturally guide movement along the intended axis while minimizing contact and friction, thus maintaining stability without compromising movement smoothness.
4Measurement precision
If decoupling designs are implemented to prevent mutual interference, then the control accuracy is improved, but the device complexity increases
Solution Approach 1:
Multiple functions (connection, guidance, decoupling, and support) are merged into a single integrated connecting component. This component includes multiple connecting elements that simultaneously perform all necessary functions, achieving high control accuracy through decoupling while avoiding the complexity of separate mechanisms for each function.
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a first movable portion, a fixed portion, a driving component, and a connecting component. The first movable portion is configured to connect the optical element. The first movable portion is movable relative to the fixed portion. The driving component is configured to drive the first movable portion to move relative to the fixed portion. The first movable portion is movable relative to the fixed portion via the connecting component.