Reflecting Module Rotation for Compact Optical Image Stabilization

Solution Overview

Problem

The increasing complexity and size of camera modules with autofocusing, zoom, and optical image stabilization functions pose challenges for integration into portable electronic devices, leading to increased power consumption and difficulty in miniaturization due to the need for moving lenses and image sensors.

Innovation Solution

A reflecting module for optical image stabilization (OIS) with a rotation holder and bearings that allow for the rotation of a reflecting member around multiple axes, reducing the need to move lenses or image sensors, and utilizing a pulling magnet and yoke for support, thereby minimizing power consumption and module size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If lenses or image sensors are directly moved for optical image stabilization, then stabilization function is achieved, but device weight and power consumption increase

Engineering Contradiction:

Improveoptical image stabilization functionVSAvoidweight of lens or image sensor

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent extracts the heavy lens or image sensor from the moving component and replaces it with a lightweight reflecting member. Only the reflecting member is moved for stabilization, while the lens and image sensor remain stationary, thus achieving stabilization function while significantly reducing the weight of the moving object.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a reflecting member as an intermediary component between the lens and the image sensor. This reflecting member can be easily moved to adjust the optical path, serving as a mediator that enables image stabilization without requiring movement of the heavy lens or image sensor itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If lenses or image sensors are directly moved for optical image stabilization, then stabilization function is achieved, but power consumption increases

Engineering Contradiction:

Improveoptical image stabilization functionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts the heavy lens or image sensor from the moving component and replaces it with a lightweight reflecting member. Only the reflecting member is moved for stabilization, while the lens and image sensor remain stationary, thus achieving stabilization function while significantly reducing the weight of the moving object.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a reflecting member as an intermediary component between the lens and the image sensor. This reflecting member can be easily moved to adjust the optical path, serving as a mediator that enables image stabilization without requiring movement of the heavy lens or image sensor itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If camera module structures are made complicated to implement autofocusing, zoom, and OIS functions, then functionality is improved, but device size increases

Engineering Contradiction:

Improveautofocusing, zoom, and OIS functionsVSAvoidcamera module size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent makes the reflecting member serve multiple functions: it acts as both the optical element for image capture and the moving component for optical image stabilization. This multi-functionality reduces the need for separate dedicated OIS components, thereby maintaining advanced functionality while reducing overall camera module size.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs a dynamic reflecting member that can rotate around multiple axes to adjust the optical path in real-time. This dynamic configuration enables the single reflecting member to handle stabilization requirements that would traditionally require more complex mechanical structures with multiple fixed and moving components.

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

The solution enables miniaturization of portable electronic devices by maintaining functionality while reducing power consumption and module size, allowing for efficient optical image stabilization without increasing device thickness.

Implementation Method 1

utilizing a pulling magnet and yoke for support

Methodology Applied

Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

A reflecting module for optical image stabilization (OIS) includes a housing; a rotation holder provided in the housing and including a reflecting member; a rotation plate provided in the housing between an inner wall of the housing and the rotation holder so that the rotation holder is supported by the inner wall of the housing via the rotation plate

Methodology Applied

Scientific EffectFriction reduction: Friction

Data Source

PatentUS12416816B2Reflecting module for optical image stabilization (OIS) and camera module including the same

Publication Date: 2025.09.16 SAMSUNG ELECTRO MECHANICS CO LTD

AI summary

A reflecting module for optical image stabilization (OIS) includes a housing; a rotation holder provided in the housing and comprising a reflecting member; a rotation plate provided in the housing between an inner wall of the housing and the rotation holder so that the rotation holder is supported by the inner wall of the housing via the rotation plate; and a driving part configured to apply a driving force to the rotation holder to move the rotation holder.