Elastic Supporting Structure for Optical Image Stabilizer

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Solution Overview

Problem

Existing optical anti-shake mechanisms are complex, bulky, and costly, making them difficult to downsize and integrate into small electronic devices, and they fail to protect lens modules from permanent deformation upon impact.

Innovation Solution

An elastic supporting structure for optical image stabilizers that includes a movable portion with suspension wires and a spring plate system, featuring additional auxiliary line elements to reinforce the structure and prevent plastic deformation along the image-capturing optical axis, providing enhanced shock resistance and anti-shake functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing optical anti-shake mechanisms are used, then image stabilization is achieved, but the device becomes complex and bulky

Engineering Contradiction:
Improveimage stabilizationVSAvoidmechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the image stabilization function with the lens module support structure by integrating the elastic supporting structure into both systems. The spring plate and suspension wire form a unified mechanical system that simultaneously stabilizes the lens module and provides anti-shake functionality, eliminating the need for separate complex mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic supporting structure serves multiple functions: it supports the lens module, provides image stabilization, and protects against impact. The spring plate and suspension wire are designed to perform both stabilization and shock absorption functions, making the structure multi-functional and reducing overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If existing optical anti-shake mechanisms are used, then image stabilization is achieved, but the device volume increases

Engineering Contradiction:
Improveimage stabilizationVSAvoiddevice volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent nests the elastic supporting structure within the lens module assembly. The spring plate and suspension wire are integrated into the existing lens module structure, with the suspension wire connecting the lens module to the housing and the spring plate providing additional support within the same space, thereby achieving compact integration without increasing device volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The spring plate is designed as a thin, flexible elastic component that provides structural support and shock absorption within a minimal volume. The flexible nature of the spring plate allows it to deform under impact while occupying minimal space, enabling effective anti-shake functionality without increasing device volume.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If existing optical anti-shake mechanisms are used, then image stabilization is achieved, but manufacturing cost increases

Engineering Contradiction:
Improveimage stabilizationVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses simple, inexpensive materials for the elastic supporting structure, such as metal or plastic spring plates and suspension wires. These components are designed to be cost-effective and easy to manufacture, replacing complex and expensive anti-shake mechanisms with simpler, more affordable elastic elements that can be produced through standard manufacturing processes.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The elastic supporting structure is designed to be self-regulating, using the natural elasticity of the spring plate and suspension wire to provide shock absorption and stabilization without requiring additional control systems or complex mechanisms. This self-service approach reduces manufacturing complexity and cost while maintaining effective image stabilization.

Inventive Principle:
Principle #25Self-service

4Reliability

If existing optical anti-shake mechanisms are used, then image stabilization is achieved, but assembly difficulty increases

Engineering Contradiction:
Improveimage stabilizationVSAvoidassembly difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent divides the elastic supporting structure into separate modular components: the spring plate, suspension wire, and their connections to the lens module and housing. This segmentation allows each component to be manufactured and tested independently, then assembled together through simple connection processes, significantly reducing assembly difficulty compared to integrated complex mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of assembling complex anti-shake mechanisms and then integrating them into the lens module, the patent inverts the approach by first creating the simple elastic supporting structure and then integrating it as the foundation for the lens module assembly. This reversal simplifies the overall assembly process by establishing a simple, flexible base structure first.

Inventive Principle:
Principle #13The other way round (Inversion)

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 solution effectively prevents plastic deformation and enhances shock resistance, ensuring better image quality by stabilizing the lens module against shakes and drops, while maintaining a compact design suitable for small electronic devices.

Implementation Method 1

the elastic elements, which have been deformed along with the lens module, return to their initial states, thereby enabling the lens module to return to its initial position

Methodology Applied
Scientific EffectElastic recovery: Elastic Recovery

Data Source

PatentUS9341860B2Elastic supporting structure and optical image stabilizer having the elastic supporting structure
Publication Date: 2016.05.17 ACTUTEK CORP
  • US9341860B2 patent drawing
  • US9341860B2 patent drawing
  • US9341860B2 patent drawing

AI summary

An elastic supporting structure for an optical image stabilizer is provided. The optical image stabilizer includes a movable portion, a compensation module, and a plurality of suspension wires. The movable portion is provided therein with a lens. The compensation module corresponds to the movable portion, and both are located on the same image-capturing optical axis. Each suspension wire has two ends respectively connected to the movable portion and the compensation module. The movable portion is provided with an upper spring plate. One end of each suspension wire is connected to a length-increased outer line element and at least one additional auxiliary line element of the upper spring plate, and the other end of each suspension wire is connected to the compensation module, such that the movable portion corresponds to the compensation module and is spaced therefrom by a predetermined distance. Also, anti-shake function performs well with suspension wires.