Optical Driving Mechanism With Biasing Assembly for Shock Damping

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Solution Overview

Problem

Conventional optical driving mechanisms in electronic devices, such as smartphones and cameras, face challenges in maintaining image quality due to device shaking and the need for miniaturization, requiring an effective shockproof and compact optical compensation system.

Innovation Solution

An optical driving mechanism with a biasing assembly that includes a movable portion, a bottom plate, and a biasing element, where the biasing element is connected to electrical connection portions with different clamping forces to stabilize the optical element and enhance vibration damping, allowing for precise movement and improved image stabilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the optical mechanism is miniaturized to reduce device size, then the volume of the optical system is reduced, but the shockproof performance and image stabilization capability deteriorate

Engineering Contradiction:
Improvevolume of optical systemVSAvoidshockproof performance
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The biasing element is nested within the electrical connection portion structure, where the conductive layer serves as both the electrical connection path and the mounting structure for the biasing element. The insulating layer protrusion provides a nested configuration space that houses the biasing element while maintaining electrical connectivity through the conductive layer, achieving compact integration without sacrificing functional performance

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent merges the electrical connection function with the mechanical support and shock absorption function into a single integrated structure. The electrical connection portion simultaneously provides electrical connectivity through the conductive layer, mechanical support through the fixed body, and vibration damping through the biasing element, eliminating the need for separate components and reducing overall system volume

Inventive Principle:
Principle #5Merging (Combining)

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 reduces image blur caused by device shaking and enables miniaturization by providing a compact optical compensation system that maintains image quality and stability, even in smaller devices.

Implementation Method 1

The biasing assembly has at least one biasing element and the biasing assembly located between the bottom plate and the movable portion for driving the movable portion to move relative to the bottom plate

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The first electrical connection portion has a fixed body, an insulating layer and a conductive layer, which are sequentially overlapped along the optical axis. The conductive layer is directly and electrically connected to the biasing element

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 3

an optical driving mechanism having a biasing assembly... effectively reduces image blur caused by device shaking

Methodology Applied
Scientific EffectVibration damping: Damping

Data Source

PatentUS11841544B2Driving mechanism
Publication Date: 2023.12.12 ACTUTEK CORP
  • US11841544B2 patent drawing
  • US11841544B2 patent drawing
  • US11841544B2 patent drawing

AI summary

A driving mechanism is provided, including a movable portion, a fixed portion and a driving assembly. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The driving assembly includes a biasing element generating a driving force, and a first electrical connection portion electrically connected to the biasing element. The biasing element is clamped at a first position of the first electrical connection portion by a first clamping force, and the biasing element is clamped at a second position of the first electrical connection portion by a second clamping force The first clamping force is different from the second clamping force.