Optical Anti-Shake Suspension Mechanism for Lens Impact Protection

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Solution Overview

Problem

Conventional optical anti-shake mechanisms are complex, cumbersome, and difficult to miniaturize, failing to effectively prevent permanent deformation of lens modules due to accidental falls or impacts, which degrades imaging quality.

Innovation Solution

A suspension mechanism with a movable-member support and a suspension module that includes elastic elements to absorb Z-axial impacts, while also providing compensation for X-axial and Y-axial deviations, ensuring the lens module's integrity and imaging quality by using a higher Z-axial elastic coefficient than X-axial and Y-axial coefficients.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional optical anti-shake mechanisms are used, then imaging quality can be maintained during hand shaking, but the device structure becomes complex and vulnerable to permanent deformation from accidental falls

Engineering Contradiction:

Improveanti-shake capabilityVSAvoidmechanism structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the anti-shake compensation function with the lens module support structure into a single integrated suspension mechanism. The movable member support simultaneously holds the lens module and provides anti-shake compensation through elastic elements, eliminating the need for separate complex anti-shake mechanisms while maintaining reliability during hand shaking and reducing vulnerability to fall damage

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The movable member support structure serves multiple functions: it supports the lens module, provides anti-shake compensation through elastic deformation, and acts as a protective suspension system during accidental falls. This multi-functional design reduces overall device complexity while maintaining anti-shake capability

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Stability of the object's composition

If rigid support structure is used for lens module, then structural stability is improved, but permanent deformation occurs during accidental falls

Engineering Contradiction:

Improvestructural stabilityVSAvoidimpact damage

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent incorporates elastic elements (springs or elastomers) between the movable member support and the base before accidental falls occur. These elastic elements are pre-configured to deform and absorb impact energy during Z-axis drops, cushioning the lens module against permanent deformation while maintaining structural stability during normal operation

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent changes the mechanical parameters of the support structure by introducing elastic elements with specific elastic coefficients. The elastic elements have higher stiffness in the Z-axis direction to provide impact protection during falls, while maintaining appropriate flexibility in X and Y directions for anti-shake compensation, thus resolving the contradiction between structural stability and impact resistance

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If elastic elements with high Z-axial elastic coefficient are used, then impact absorption during falls is improved, but X-Y axial compensation capability may be affected

Engineering Contradiction:

Improveimpact absorptionVSAvoidcompensation capability

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent applies local quality by designing elastic elements with directionally differentiated mechanical properties. The elastic elements have higher elastic coefficients specifically in the Z-axis direction to absorb impact energy during falls, while maintaining appropriate elastic properties in the X and Y directions to enable anti-shake compensation. This localized property differentiation resolves the contradiction between impact absorption and compensation capability

Inventive Principle:

Principle #3Local quality

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 suspension mechanism effectively prevents permanent deformation and damage from accidental falls, maintaining the optical performance of the lens module by providing sufficient buffering and compensation for unexpected impacts, enhancing the anti-shake capability of the optical image anti-shake device.

Implementation Method 1

a suspension module (22) suspending the movable-member support (21) together with the movable member (12) inside an inner compartment (10) formed between the casing (11) and the base (13)

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

The elastic elements have a higher Z-axial elastic coefficient than X-axial and Y-axial elastic coefficients

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS10718952B2Suspension mechanism for an optical image anti-shake device

Publication Date: 2020.07.21 ACTUTEK CORP

AI summary

An optical image anti-shake device, defined with an X-axis, a Y-axis and a Z-axis, includes a casing, a movable member and a base. A suspension mechanism furnished inside the optical image anti-shake device includes a movable-member support and a suspension module. A first surface of the movable-member support is connected to the movable member. The suspension module suspends the movable-member support together with the movable member inside an inner compartment formed between the casing and the base.