Optical Member Driving Mechanism for Shockproof Lens Stabilization

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Solution Overview

Problem

Image blurriness in electronic devices due to shaking of lens modules, necessitating a shockproof zoom lens module design for improved image quality.

Innovation Solution

An optical member driving mechanism with a movable portion, fixed portion, driving assembly, and guiding assembly, utilizing guiding modules with stabilizing members and electromagnetic forces to stabilize and guide the movement of optical components, reducing friction and preventing overturning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the lens module is made thinner and more compact, then the device becomes more convenient and portable, but the lens module becomes more susceptible to shaking and impact, degrading image quality

Engineering Contradiction:

Improvelens module sizeVSAvoidshock resistance

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The lens module is divided into a fixed portion and a movable portion that can independently move relative to each other. The movable portion contains the lens assembly while the fixed portion provides structural support. This segmentation allows the lens to be isolated from external shocks while maintaining a compact overall structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A guiding assembly acts as an intermediary between the movable portion and fixed portion. This guiding assembly includes guiding members and stabilizing members that constrain the movement of the movable portion, preventing excessive displacement during shock events while allowing controlled movement for focusing and zooming operations.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If traditional guiding structures are used to prevent shaking, then image stabilization is achieved, but friction increases and movement smoothness deteriorates

Engineering Contradiction:

Improveimage stabilizationVSAvoidmovement smoothness

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The stabilizing members are designed with spherical contact surfaces that roll against the guiding members during movement. This spherical geometry converts sliding friction into rolling friction, significantly reducing frictional resistance while maintaining effective guidance and stabilization of the movable portion.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The traditional sliding contact guiding structure is replaced with a rolling contact system using spherical stabilizing members. This mechanical substitution reduces friction and improves movement smoothness while maintaining the stabilization function through the rolling constraint mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Stability of the object's composition

If the movable portion is constrained to prevent overturning, then stability improves, but movement flexibility and zoom capability deteriorate

Engineering Contradiction:

Improvemovable portion stabilityVSAvoidmovement flexibility

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The guiding members are positioned asymmetrically relative to the movable portion, with different numbers and arrangements of guiding members on different sides. This asymmetric configuration provides differential constraints that prevent overturning while allowing the movable portion to move freely in the intended focusing and zooming directions.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The guiding assembly provides dynamic constraints that adapt to the movement requirements. The stabilizing members maintain contact with the guiding members during movement, providing real-time stabilization while allowing controlled displacement for focusing and zooming operations through the rolling contact mechanism.

Inventive Principle:

Principle #15Dynamics

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 stabilization and focus adjustment by minimizing friction and ensuring steady movement of optical components, thereby improving image quality in devices like smartphones and tablets.

Implementation Method 1

a driving assembly, configured to drive the movable portion to move relative to the fixed portion

Methodology Applied

Scientific EffectElectromagnetic force: Lorentz Force

Data Source

PatentUS12560855B2Optical member driving mechanism

Publication Date: 2026.02.24 ACTUTEK CORP

AI summary

An optical member driving mechanism is provided, including a movable portion, a fixed portion, a driving assembly, and a guiding assembly. The movable portion is configured to connect an optical member, and is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion, and the movable portion moves relative to the fixed portion through the guiding assembly.