Optical Image Stabilizing Module with Segmented Reflection Member

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Solution Overview

Problem

Camera modules in portable electronic devices face challenges in miniaturization due to the need for complex mechanisms like autofocusing and optical image stabilizing functions, which often require increased thickness and power consumption, compromising the miniaturization of these devices.

Innovation Solution

An optical image stabilizing (OIS) module is designed with a driving holder and frame that moves in linear and rotational directions to change the path of light, using ball members and guide grooves for efficient movement, allowing for the implementation of OIS functions without increasing the device's thickness and reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a barrel including the lens, holder, and other members is directly moved for performing the OIS function, then the OIS function can be implemented, but the weight of the moving object increases and power consumption increases

Engineering Contradiction:

ImproveOIS functionVSAvoidweight of lens and holder

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent segments the OIS mechanism into two independent parts: a fixed heavy barrel containing the lens and holder, and a lightweight moving platform carrying only the reflection member. The driving part selectively moves only the reflection member for OIS compensation while keeping the heavy lens assembly stationary, thereby resolving the contradiction between achieving OIS function and minimizing moving weight

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts the reflection member from the heavy barrel assembly and places it on a separate lightweight moving platform. This extraction allows the OIS function to be performed by moving only the reflection member independently, separating the OIS function from the heavy lens and holder components

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If a barrel including the lens, holder, and other members is directly moved for performing the OIS function, then the OIS function can be implemented, but the power consumption increases

Engineering Contradiction:

ImproveOIS functionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the OIS mechanism into a stationary heavy barrel and a lightweight moving platform with only the reflection member. By moving only the lightweight platform for OIS compensation instead of the entire heavy barrel assembly, the energy required for OIS operation is significantly reduced while maintaining the OIS function

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a counterbalance effect by separating the heavy lens assembly from the moving reflection member platform. The lightweight platform requires minimal driving force for movement, effectively counteracting the energy consumption issue that would arise from moving the entire heavy barrel assembly

Inventive Principle:

Principle #8Anti-weight (Counterweight)

3Adaptability or versatility

If complex mechanisms are added for autofocusing and optical image stabilizing functions, then the functionality is improved, but the device thickness increases

Engineering Contradiction:

ImproveOIS and AF functionsVSAvoiddevice thickness

Core Design Contradiction:

Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The patent merges the OIS mechanism with the existing barrel structure by integrating the moving platform with the reflection member into the barrel's internal space. This merging allows OIS functionality to be added without requiring separate external components, thereby improving functionality while minimizing increases in device thickness

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements a nested structure where the moving platform with the reflection member is positioned within the barrel assembly. The platform can move independently within the confined space of the barrel, allowing complex OIS and AF functions to be accommodated within the existing device thickness without significant increase

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS11586051B2Optical image stabilizing module and camera module including the same

Publication Date: 2023.02.21 SAMSUNG ELECTRO MECHANICS CO LTD

AI summary

An optical image stabilizing (OIS) module and a camera module are provided. The OIS module includes a driving holder provided on a bottom surface of a housing, a driving frame comprising a reflection member and supported on an inner wall of the driving holder, a driving part configured to provide a driving force to move the driving holder and the driving frame, wherein the driving holder is configured to move in one or more of a linear direction and a rotational direction on the bottom surface of the housing to move the reflection member in a first axial direction, perpendicular to an optical axis, and the driving frame is configured to move in one or more of the linear direction and the rotational direction on the inner wall of the driving holder to move the reflection member in a second axial direction, perpendicular to the optical axis.