Miniature Optical Module with Dual-Axis Movable Part Control

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Solution Overview

Problem

The challenge of designing a miniaturized optical system for electronic devices, such as tablets and computers, lies in integrating miniaturized optical modules while maintaining optical quality and convenience, particularly in moving parts that require precise and efficient movement.

Innovation Solution

An optical system with a movable part driven by two independent driving assemblies, where one assembly generates a non-deforming force and the other allows deformation, enabling controlled movement in multiple dimensions with varying deformation magnitudes, and utilizing piezoelectric material and shape memory alloys for precise positioning and sensing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the optical system is miniaturized to reduce device size, then the volume of the optical system is reduced, but the precision of movement control deteriorates

Engineering Contradiction:

Improvevolume of optical systemVSAvoidprecision of movement control

Core Design Contradiction:

Volume of moving objectVSManufacturing precision

Solution Approach 1:

The optical system is divided into a fixed part and a movable part, with the movable part further segmented into multiple areas (first area, second area, third area) that can undergo different deformations. This segmentation allows independent control of different regions, maintaining precision even in a miniaturized system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different areas of the movable part are designed with different deformation characteristics. The first area undergoes a first deformation, the second area undergoes a second deformation with different magnitude, and the third area undergoes a third deformation. This local differentiation enables precise control of movement in a compact structure.

Inventive Principle:

Principle #3Local quality

2Device complexity

If a single driving assembly is used to simplify the structure, then the device complexity is reduced, but the capability to control movement in multiple dimensions deteriorates

Engineering Contradiction:

Improvestructure complexityVSAvoidcapability to control movement in multiple dimensions

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent combines two driving assemblies (first driving assembly and second driving assembly) into a single optical system, allowing simultaneous control in multiple dimensions. The first driving assembly generates a first driving force while the second driving assembly generates a second driving force, enabling complex movement patterns that would be impossible with a single driver.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The movable part serves multiple functions: it can move in response to the first driving force from the first driving assembly, and simultaneously move in response to the second driving force from the second driving assembly. This multi-functionality allows a single component to handle complex positioning requirements without increasing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If driving elements that do not deform are used to improve reliability, then the reliability is improved, but the ability to achieve precise positioning through controlled deformation deteriorates

Engineering Contradiction:

Improvereliability of driving elementVSAvoidprecision of positioning

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent changes the physical state and properties of different parts of the movable part. Some areas are designed to remain rigid (first driving element does not deform) for reliability, while other areas (second area, third area) are designed to undergo controlled deformations for precise positioning. This parameter differentiation allows both reliability and precision to coexist.

Inventive Principle:

Principle #35Parameter changes

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

Enables efficient and precise movement of optical components within a compact design, enhancing optical performance and convenience by allowing controlled motion ranges and deformation patterns, suitable for miniaturized electronic devices.

Implementation Method 1

utilizing piezoelectric material and shape memory alloys for precise positioning and sensing

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

utilizing piezoelectric material and shape memory alloys for precise positioning and sensing

Methodology Applied

Scientific EffectShape memory effect: Shape Memory Alloy

Data Source

PatentUS12610122B2Optical system

Publication Date: 2026.04.21 ACTUTEK CORP

AI summary

An optical system is provided. The optical system includes a movable part, a fixed part, and a first driving assembly, and a second driving assembly. The movable part connects an optical element. The movable part is movable relative to the fixed part. The first driving assembly and the second driving assembly is for driving the movable part to move. The first driving assembly generates a first driving force to drive the movable part to move in a first dimension. The second driving assembly generates a second driving force to drive the movable part to move in a second dimension.