Optical Element Drive with Positioning Shutter Lock
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Solution Overview
Problem
Modern electronic devices with image-capturing and video-recording functions require efficient optical element driving mechanisms that ensure secure positioning and operation of optical modules, particularly in minimizing exposure when not in use to enhance security and functionality.
Innovation Solution
The optical element driving mechanism comprises a fixed portion, a movable optical element, a first driving assembly including magnetic elements, and a positioning element that limits the movable portion's position when the driving assembly is inactive, allowing the optical module to be securely positioned and controlled for exposure or protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the optical element is made movable to enable shutter function, then the functionality is improved, but the risk of unintended exposure and security issues worsen
Solution Approach 1:
The positioning element is configured to automatically limit the movable optical element to specific predetermined positions (exposed position and covered position) without requiring active control. This preliminary structural constraint ensures the optical element can only be in authorized states, preventing unintended exposure while maintaining shutter functionality.
Solution Approach 2:
The positioning element acts as an intermediary mechanism between the movable optical element and the housing. It mediates the movement of the optical element by providing physical guidance and limitation, ensuring the element moves only to authorized positions rather than allowing free movement that could cause unintended exposure.
2Adaptability or versatility
If the optical element is made movable for shutter operation, then the functionality is improved, but the positioning precision and stability worsen
Solution Approach 1:
The positioning element pre-establishes authorized positions through its physical structure (first position and second position). The movable optical element is guided to snap into these predetermined positions, ensuring high positioning precision without requiring complex active control systems. The structure itself defines the precise locations where the element should reside.
Solution Approach 2:
The positioning element provides self-aligning features that guide the movable optical element into the correct authorized positions automatically. The mechanical design includes guiding surfaces and positioning structures that cause the element to self-correct and settle into the precise first or second position without external intervention, maintaining high positioning accuracy.
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 mechanism effectively prevents unintended exposure of the optical module, enhancing security by limiting the movable optical element's range and allowing controlled operation as a shutter, thereby optimizing the use of optical modules in electronic devices.
Implementation Method 1
the first driving assembly includes a first magnetic element and a second magnetic element arranged in a second direction that is perpendicular to the first direction
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, a first driving assembly, and a positioning element. The movable portion is movably disposed on the fixed portion and comprising an optical element. The optical element moves in a first direction. The first driving assembly is at least partially disposed on the fixed portion. The positioning element is rotatably disposed on the fixed portion or the movable portion. When the first driving assembly is not activated, the positioning element is used to limit the position of the movable portion relative to the fixed portion to a limit position, and the positioning element comprises a main body and a limiting portion extending from the main body in a second direction that is perpendicular to the first direction. The limiting portion passes through the optical element.