Optical Component Driving Mechanism for Compact Image Stabilization
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Solution Overview
Problem
Existing electronic devices with lens modules face challenges in achieving effective optical compensation and miniaturization while preventing image blurriness due to user shake, particularly in devices like smartphones and tablets.
Innovation Solution
An optical component driving mechanism with movable holders and driving assemblies, including magnetic components and coils, allows for auto-focusing and optical image stabilization, while utilizing shock-absorbing components and non-metallic materials to minimize device size and stabilize the lens module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the lens module is made smaller to achieve miniaturization, then the device size is reduced, but the optical compensation function becomes insufficient
Solution Approach 1:
The patent implements a nested structure where the first holder containing the first optical component is placed within the first accommodating space of the frame, and the second holder containing the second optical component is placed within the second accommodating space. This nesting arrangement allows multiple optical components to be accommodated in a compact configuration, achieving miniaturization while maintaining the optical compensation function through the coordinated movement of nested holders.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by positioning the first and second holders in different accommodating spaces within the frame, allowing movement in multiple dimensions. The first holder moves in response to first shake directions while the second holder moves in response to second shake directions, enabling comprehensive optical compensation in three-dimensional space without increasing overall module size.
2Reliability
If multiple optical components are added to improve optical compensation, then the optical compensation function is enhanced, but the device complexity increases
Solution Approach 1:
The patent designs the first and second holders with universal functionality, where each holder can independently move in response to different shake directions detected by sensors. The first holder compensates for shake in first directions while the second holder compensates for shake in second directions, allowing a single integrated mechanism to perform multiple compensation functions without requiring separate dedicated components for each function.
Solution Approach 2:
The patent merges the first holder and second holder into a single integrated mechanism within the frame structure. Both holders share the same frame reference and can be actuated by the same control system, combining multiple optical compensation functions into one unified device rather than using separate independent mechanisms, thereby reducing overall system complexity.
3Strength
If metallic materials are used for the holder to improve strength, then the structural strength is enhanced, but electromagnetic interference occurs
Solution Approach 1:
The patent employs composite material construction for the first holder and second holder, combining materials with different properties to achieve both mechanical strength and electromagnetic compatibility. The holders are made from materials that provide sufficient structural strength to support the optical components while simultaneously offering electromagnetic shielding properties to prevent interference with sensitive optical sensors and circuitry.
Solution Approach 2:
The patent applies different material properties to different parts of the holder structure. Critical load-bearing areas use materials optimized for strength, while areas close to electromagnetic sensors use materials or coatings optimized for electromagnetic shielding. This localized material selection allows the holder to simultaneously achieve both structural strength and electromagnetic interference prevention without compromising either property.
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 mechanism effectively stabilizes images by compensating for shake and focuses optics, achieving miniaturization and shockproof performance in electronic devices.
Implementation Method 1
The first optical component is configured to receive an electromagnetic wave and output a signal
Implementation Method 2
The first driving assembly is configured to drive the first holder to move relative to the frame
Data Source
AI summary
An optical component driving mechanism is provided. The optical component driving mechanism includes a first holder, a frame, and a first driving assembly. The first holder is configured to connect the first optical component. The frame includes a first accommodating space for accommodating the first holder. The first holder is movable relative to the frame. The first driving assembly is configured to drive the first holder to move relative to the frame.