Optical Driving Mechanism With Locking Structure for Miniaturized Shutters
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Solution Overview
Problem
The challenge lies in reducing the size of shutter or aperture mechanisms in electronic devices while preventing damage from collisions with external objects, particularly in devices with movable components.
Innovation Solution
An optical driving mechanism featuring a first and second driving assembly, with a fixed part and movable parts, utilizing electromagnetic systems to move optical elements relative to each other, and a sensing assembly for precise positioning, ensuring structural strength and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the shutter or aperture mechanism is miniaturized to reduce size, then the device thickness and overall size are reduced, but the structural strength and reliability deteriorate making the mechanism susceptible to damage from external collisions
Solution Approach 1:
The shutter mechanism is divided into multiple independent components: a first movable part connected to the optical element, a second movable part with a locking element, and a fixed part with an opening. This segmentation allows each component to be optimized independently - the first movable part can be miniaturized while the locking element provides structural reinforcement against external impacts.
Solution Approach 2:
The locking element is pre-positioned in the fixed part to cooperate with the second movable part, creating a protective locking mechanism before any collision occurs. This beforehand preparation ensures that when external impacts occur, the locking mechanism is already in place to absorb and distribute the impact forces, preventing damage to the miniaturized optical elements.
2Volume of moving object
If the shutter mechanism is miniaturized, then the device becomes thinner and more compact, but the reliability and resistance to external harmful factors deteriorate
Solution Approach 1:
The locking element acts as an intermediary between the second movable part and the fixed part. This intermediary component transfers and distributes external impact forces away from the delicate optical elements, thereby maintaining high reliability in a miniaturized configuration. The magnet and locking element system serves as a protective mediator that shields the optical elements from direct impact.
3Measurement precision
If electromagnetic driving assemblies are used to drive the movable parts, then precise movement control is achieved, but the device complexity increases
Solution Approach 1:
The electromagnetic driving assemblies are extracted and positioned in separate fixed parts, with the opening located between the first and second driving assemblies. This extraction and spatial separation allows for precise control of each movable part independently while organizing the complex electromagnetic components in a structured, manageable layout that reduces overall device complexity.
4Strength
If the opening is positioned between the first and second driving assemblies, then structural strength is enhanced and interference is reduced, but the device layout becomes more complex
Solution Approach 1:
The opening is positioned in a strategic location between the first and second driving assemblies, utilizing spatial arrangement in multiple dimensions. This dimensional positioning allows the opening to serve multiple functions - providing structural strength to the fixed part while reducing interference between electromagnetic assemblies - without simply adding linear complexity to the layout.
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 allows for efficient movement of optical elements while enhancing structural integrity and reducing interference between electromagnetic systems, providing accurate positioning and improved durability.
Implementation Method 1
The first driving assembly and the second driving assembly are electromagnetic driving assemblies
Implementation Method 2
The magnet is disposed in the first movable part. The locking element is disposed in the fixed part, and the locking element cooperates with the second movable part
Data Source
AI summary
An optical driving mechanism is provided. The optical driving mechanism includes a first movable part, a fixed part, and a first driving assembly. The first movable part is connected with an optical element. The first movable part is movable relative to the fixed part. The first driving assembly drives the first movable part to move relative to the fixed part. The fixing part has an opening.