Optical Element Drive Mechanism with Local Magnetic Reinforcement

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Solution Overview

Problem

Electronic devices experience image and video blurriness due to shocks or vibrations, necessitating improved optical element drive mechanisms for higher quality imaging.

Innovation Solution

An optical element drive mechanism comprising an immovable part, movable part, drive assembly, and strengthening assembly, with magnetic and elastic elements to enhance stability and driving force, and an embedded assembly for structural reinforcement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If the optical element drive mechanism uses a simple structure without strengthening assembly, then the device complexity is reduced, but the driving force and structural integrity are insufficient

Engineering Contradiction:
Improvedriving forceVSAvoidstructure complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The strengthening assembly uses a composite structure combining magnetic elements (with high magnetic permeability) and non-magnetic materials. This composite approach enhances the driving force through magnetic field interaction while maintaining structural integrity, resolving the contradiction between force enhancement and structural complexity

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The strengthening assembly is divided into multiple components including side plates, top plates, and magnetic elements positioned at specific locations. This segmentation allows the magnetic field to be concentrated and optimized in different regions, enhancing overall driving force without requiring a monolithic complex structure

Inventive Principle:
Principle #1Segmentation

2Force

If the optical element drive mechanism uses magnetic elements with high magnetic permeability in the strengthening assembly, then the driving force is enhanced, but the magnetic interference increases

Engineering Contradiction:
Improvedriving forceVSAvoidmagnetic interference
Core Design Contradiction:
ForceVSObject-generated harmful factors

Solution Approach 1:

Magnetic elements with high magnetic permeability are strategically positioned only in specific regions where they are needed to enhance driving force (such as near the drive assembly), rather than throughout the entire structure. This localized approach concentrates magnetic field enhancement where beneficial while minimizing overall magnetic interference

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Non-magnetic materials are used as intermediary components between the magnetic elements and the optical element. These intermediaries transmit the magnetic driving force while isolating and reducing magnetic interference to the optical element, resolving the contradiction between force enhancement and interference reduction

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances image clarity by stabilizing the optical element during device use, reducing blurriness, and improving the driving force and structural integrity of the mechanism.

Implementation Method 1

The magnetic permeability of the side wall is less than the magnetic permeability of the side plate. The drive assembly includes a magnetic element disposed on the side wall.

Methodology Applied
Scientific EffectMagnetic permeability: Magnetic Field

Data Source

PatentUS12386141B2Optical element drive mechanism
Publication Date: 2025.08.12 ACTUTEK CORP
  • US12386141B2 patent drawing
  • US12386141B2 patent drawing
  • US12386141B2 patent drawing

AI summary

An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, a drive assembly, and a strengthening assembly. The movable part is connected to an optical element. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part. The strengthening assembly strengthens the driving force of the drive assembly. The strengthening assembly is close to the drive assembly.