Optical Element Driving Mechanism for Multi-Lens Modules
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Solution Overview
Problem
Existing multi-lens modules in electronic devices, such as mobile phones and laptops, face challenges in manufacturing cost and functionality, particularly in efficiently moving optical elements to block or allow light through multiple optical openings.
Innovation Solution
An optical element driving mechanism with a movable portion and a guiding assembly that allows the optical element to move relative to a fixed portion along a first axis, utilizing a magnetic driving assembly and a linkage assembly to control the movement, and includes a guiding assembly with non-parallel contact surfaces to reduce interference and improve positioning stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single optical element is used to block or allow light through multiple optical openings, then the manufacturing cost is reduced and functionality is enhanced, but the structural strength and reliability may be compromised
Solution Approach 1:
The optical element is divided into multiple independent optical openings (first optical opening and second optical opening) that can be independently controlled. Each opening can be blocked or allowed to transmit light independently through the movable portion's positioning, enabling multi-functional control while maintaining the integrity of each individual opening structure.
Solution Approach 2:
A single optical element structure serves multiple functions by controlling light transmission through multiple optical openings simultaneously. The movable portion can position the optical element to block or allow light through different openings, providing versatile control capabilities for different imaging scenarios without requiring separate mechanisms for each function.
2Adaptability or versatility
If the movable portion is designed to move relative to the fixed portion along the first axis, then the optical element can be positioned to block or allow light, but the complexity of the driving and guiding mechanisms increases
Solution Approach 1:
The driving assembly uses a magnetic driving mechanism instead of traditional mechanical linkages to move the movable portion along the first axis. The magnetic force acts on the movable portion to achieve positioning, simplifying the overall mechanism while maintaining precise control capability.
Solution Approach 2:
The guiding assembly acts as an intermediary between the magnetic driving force and the movable portion. It guides the movable portion's movement along the first axis while the magnetic force provides the driving action, separating the guiding function from the driving function to simplify the overall mechanism design.
3Stability of the object's composition
If the guiding assembly includes contact surfaces with different maximum dimensions in the second axis, then the positioning stability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The contact surfaces of the guiding assembly are designed with asymmetric dimensions in the second axis, where the first contact surface has a different maximum dimension than the second contact surface. This asymmetric design provides stable positioning by creating a unique fit between the guiding assembly components, preventing lateral displacement while maintaining the intended movement along the first axis.
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
This solution reduces the manufacturing cost and enhances the functionality of multi-lens modules by allowing a single optical element to simultaneously block or allow light through multiple openings, improving the structural strength and reducing the risk of failure due to external impacts and dust interference.
Implementation Method 1
a magnetic driving assembly to drive the movable portion to move relative to the fixed portion
Data Source
AI summary
An optical element driving mechanism is provided, and includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect an optical element and is movable relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion in a first axis.