Optical Element Drive Structure for Thin, Durable Light Control
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Solution Overview
Problem
The challenge is to reduce the size and improve the durability of optical element driving mechanisms in electronic devices while maintaining their functionality, particularly in the context of devices trending towards smaller and more durable designs.
Innovation Solution
The optical element driving mechanism incorporates a movable portion, a fixed portion, a driving assembly, and a structural strengthening element made of magnetic impermeable metals or metals with low magnetic permeability, along with a circuit member and electrical elements, to achieve precise control of light input and enhance durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the optical element driving mechanism is miniaturized to reduce device size, then the size is reduced, but the durability and structural stability deteriorate
Solution Approach 1:
The patent employs a structural strengthening element made of magnetic impermeable metal material (such as stainless steel or aluminum alloy) with specific thickness parameters (0.05-0.2mm) to reinforce the miniaturized driving mechanism. This composite structure combines the advantages of metal materials (strength, durability) with the requirements for miniaturization, resolving the contradiction between size reduction and durability maintenance.
2Strength
If the structural strengthening element thickness is increased to improve durability, then the durability is improved, but the overall size and thickness increase
Solution Approach 1:
The patent optimizes the thickness parameter of the structural strengthening element within a specific range (0.05-0.2mm), balancing structural strength requirements with miniaturization goals. This parameter optimization allows the mechanism to achieve sufficient durability while maintaining a thin profile, directly addressing the contradiction between strength and thickness.
3Ease of manufacture
If conventional materials are used in the driving mechanism, then manufacturing is simpler, but magnetic interference occurs affecting optical control precision
Solution Approach 1:
The patent applies magnetic impermeable metal material specifically for the structural strengthening element and circuit board, creating localized magnetic shielding in critical areas. This selective application of special materials prevents magnetic interference without requiring the entire mechanism to be made from specialized materials, thus maintaining manufacturing simplicity while improving optical control precision.
4Volume of moving object
If the driving assembly is miniaturized to reduce overall size, then the device becomes more compact, but the driving force and control precision deteriorate
Solution Approach 1:
The patent incorporates a structural strengthening element into the driving assembly before final assembly, providing pre-reinforced structural support that enables the miniaturized driving components to generate sufficient driving force. The strengthening element acts as a structural foundation that allows smaller driving components to maintain adequate force output, resolving the contradiction between miniaturization and driving force.
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 solution enables a thinner form factor and improved durability, allowing for miniaturization and better optical performance by using metal structural strengthening elements and a specialized arrangement of components, thereby enhancing the control of light input.
Implementation Method 1
The optical element driving mechanism incorporates a structural strengthening element made of magnetic impermeable metals with a plate-like structure, allowing for precise control of light input while minimizing size and enhancing durability through electromagnetic induction forces
Implementation Method 2
Materials for the structural strengthening elements include magnetic impermeable metals or metals with low magnetic permeability
Data Source
AI summary
An optical element driving mechanism is provided, which includes a movable portion, a fixed portion and a driving assembly. The movable portion is connected with an optical element. The movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion.