Optical Element Drive Assembly With Shared Magnetic Actuation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical element driving mechanisms in electronic devices, such as smartphones and digital cameras, face challenges in miniaturization and stability due to the complexity and weight of multiple movable parts required for shutter or optical filter operations.
Innovation Solution
An optical element driving mechanism featuring a fixed assembly, first and second movable parts, and a shared driving assembly with magnetic components, allowing the movable parts to move relative to the fixed assembly to selectively block openings, thereby reducing overall volume and weight while maintaining stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate driving assemblies are used for each movable part, then each optical element can be driven independently, but the device complexity and volume increase
Solution Approach 1:
The first driving assembly is designed to perform multiple functions by simultaneously driving the first movable part and the second movable part. The driving assembly includes a driving member that can generate driving forces to move both movable parts independently through different mechanical transmission paths, eliminating the need for separate driving assemblies for each movable part.
Solution Approach 2:
Multiple driving functions are merged into a single driving assembly. The driving assembly integrates the driving mechanisms for both the first and second movable parts, combining what would traditionally require separate driving assemblies into one unified structure, thereby reducing device complexity and volume.
2Adaptability or versatility
If multiple movable parts are used for shutter and optical filter operations, then functional versatility is improved, but weight and volume increase
Solution Approach 1:
The first blocking portion and second blocking portion are integrated into a single second movable part, forming a combined shutter assembly. This merging reduces the total weight of movable parts while maintaining the functionality to perform both shutter opening/closing and optical filtering operations through coordinated movement of the integrated components.
3Volume of stationary object
If a single driving assembly drives multiple movable parts, then device volume is reduced, but driving precision and stability may deteriorate
Solution Approach 1:
The driving assembly incorporates separate driving members for the first and second movable parts, with independent driving forces and transmission paths. This segmentation within the unified driving assembly ensures that each movable part can be positioned and controlled independently with high precision, maintaining reliability while reducing overall device volume.
Solution Approach 2:
The patent employs magnetic driving mechanisms where driving members generate magnetic forces to act on the movable parts. This magnetic actuation system provides precise control and stable positioning without the mechanical complexity and space requirements of traditional mechanical transmission systems, enhancing reliability while compacting the driving assembly volume.
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 miniaturization and stable movement of optical elements, allowing for various usage scenarios and efficient operation of optical modules by sharing a driving assembly and distributing blocking functions across multiple movable parts.
Implementation Method 1
the driving assembly includes a first coil, a first magnetically conductive element, a first magnetic element and a second magnetic element
Data Source
AI summary
An optical element driving mechanism includes a fixed assembly, a first movable part and a driving assembly. The first movable part is configured to be connected to a first optical element, and the first movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the first movable part to move relative to the fixed assembly.