Optical Component Drive Structure for Stable Autofocus and OIS
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Solution Overview
Problem
Electronic devices with lens modules often experience image blurriness due to shaking during camera use, necessitating improved optical image stabilization and auto-focusing capabilities.
Innovation Solution
An optical component driving mechanism with a first movable portion, fixed portion, circuit member, and reinforcing components, utilizing magnetic components and flexible printed circuits for precise movement and stabilization, enhanced by a bracket member embedded in the base for structural support and reduced magnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a lens module is equipped with basic structural components, then the device can perform camera functions, but the mechanical strength is insufficient leading to image blurriness during shaking
Solution Approach 1:
The patent employs a composite structure combining a base, bracket member, top cover, and reinforcing component to create a rigid housing. This composite structural approach enhances mechanical strength while maintaining optical stability, directly addressing the contradiction between basic structural requirements and image stability during device shaking.
2Measurement precision
If circuit members are disposed on the housing to enable electrical connections, then electrical signals can be transmitted, but magnetic interference affects the precision of optical component positioning
Solution Approach 1:
The patent extracts and isolates the circuit member from the main housing structure by disposing it on the inner wall of the housing rather than integrating it directly into the positioning mechanism. This separation reduces magnetic interference affecting the precision of optical component positioning while maintaining necessary electrical connectivity.
Solution Approach 2:
The reinforcing component acts as an intermediary barrier between the circuit member and the optical component positioning system. By positioning the reinforcing component between these elements, the patent shields the sensitive positioning system from magnetic interference generated by the circuit member, thereby maintaining measurement precision.
3Ease of manufacture
If the housing structure is simplified to reduce device complexity, then manufacturing becomes easier, but the structural support for optical stabilization is insufficient
Solution Approach 1:
The patent segments the housing into distinct functional components: a base providing foundational support, a bracket member for mounting optical components, a top cover for enclosure, and a reinforcing component for structural enhancement. This segmentation allows each part to be manufactured independently with standard processes while collectively providing the structural stability needed for optical stabilization.
Solution Approach 2:
The base serves multiple functions: it provides the foundational structure for the housing, supports the circuit member on its inner wall, and anchors the reinforcing component. This multi-functionality reduces the need for additional separate components, maintaining ease of manufacture while ensuring structural stability for optical component positioning.
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 provides enhanced mechanical strength and reduced interference, enabling accurate auto-focusing and optical image stabilization, improving image quality in electronic devices.
Implementation Method 1
The first driving assembly includes a magnetic component. The magnetic component is disposed on the retaining wall.
Data Source
AI summary
An optical component driving mechanism is provided. The optical component driving mechanism includes a first movable portion, a fixed portion, a first circuit member, and a first reinforcing component. The first movable portion is connected to the first optical component. The first optical component has a first optical axis. The first movable portion is movable relative to the fixed portion. The first circuit member is disposed on the fixed portion, and the first circuit member is configured to transmit electrical signals. The first reinforcing component is disposed on the first circuit member.