Optical Element Drive Layout for Tilt-Free Precise Positioning
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Solution Overview
Problem
Conventional optical element driving mechanisms experience tilting or deflection due to an imbalance between the center of mass and the rotational center, leading to instability and increased size.
Innovation Solution
An optical element driving mechanism with a connecting element closer to the center of mass, a supporting element for stability, and multiple driving assemblies to achieve precise positional adjustments without tilting or deflection, incorporating a recessed design to minimize size and enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple driving assemblies are added to achieve precise adjustments, then the positioning precision improves, but the device complexity increases
Solution Approach 1:
Multiple driving assemblies are integrated into a unified structure where they work cooperatively. The first and second driving assemblies are positioned at different locations and oriented at different angles, but they are merged into a single coordinated system that drives the movable portion simultaneously, achieving precise positioning without proportionally increasing complexity.
Solution Approach 2:
The driving assemblies serve multiple functions: they provide precise positional control, maintain balance stability, and enable coordinated motion. By making the driving system multi-functional, the patent reduces the need for separate components, thereby managing complexity while achieving high precision.
2Stability of the object's composition
If the connecting element is positioned closer to the center of the connecting element, then the balance improves and tilting is prevented, but the mechanism size increases
Solution Approach 1:
The first and second driving assemblies are positioned at different spatial locations and oriented at different angles (different dimensions). This multi-dimensional arrangement allows the mechanism to achieve balance stability without requiring a proportional increase in overall size, as the components are distributed efficiently in three-dimensional space.
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, and a connecting element. The movable portion is movable relative to the fixed portion. The connecting element connects the fixed portion and the movable portion. A surface of the fixed portion connected to the connecting element faces a first direction, and a surface of the movable portion connected to the connecting element faces a second direction different from the first direction.