Optical Element Driving Mechanism for Slim Long-Focal Imaging
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Solution Overview
Problem
The challenge is to design an optical system for electronic devices that allows for the integration of longer focal length optical elements without increasing the device's thickness, while maintaining stability and slim profile.
Innovation Solution
An optical element driving mechanism with a movable part, a fixed part, a driving assembly, and an aperture assembly, which includes a plurality of blades forming an opening for incident light, and a buffering element for protection, allowing for adjustable light entry and stable movement through electromagnetic forces, enabling the mechanism to adapt to different photographic needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If optical elements with longer focal lengths are installed into electronic devices, then optical quality is improved, but device thickness increases
Solution Approach 1:
The patent implements a telescopic lens mechanism where lens groups are nested within each other along the optical axis. The first lens group can be extended outward from the housing to achieve longer focal length positioning, while retracted into the housing for shorter focal length positioning. This nesting approach allows the optical system to achieve variable focal lengths without permanently increasing the device's minimum thickness.
Solution Approach 2:
The patent employs a dynamic lens positioning system where the first lens group can move between at least two positions along the optical axis. The lens driving mechanism enables the lens groups to dynamically adjust their positions based on shooting requirements, transitioning between extended and retracted states to achieve different focal lengths while adapting to space constraints.
2Manufacturing precision
If lens groups are extended outward for longer focal length, then optical quality is improved, but structural complexity increases
Solution Approach 1:
The patent divides the optical system into multiple independent lens groups (first lens group and second lens group) that can move relative to each other. The housing is segmented into a housing body and a movable cover that can independently move along the optical axis. This segmentation allows each component to be optimized and controlled separately, reducing the overall structural complexity compared to a monolithic design.
Solution Approach 2:
The lens driving mechanism serves multiple functions: it controls the movement of the first lens group for focal length adjustment, manages the extension and retraction of the movable cover, and coordinates the positioning of multiple lens groups. This multi-functionality reduces the need for separate dedicated mechanisms for each function, thereby reducing overall structural complexity.
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 allows for adjustable imaging and stable optical quality while maintaining a slim profile, simplifying the structural design and circuitry integration with lens driving devices, ensuring compatibility with various device sizes and enhancing user convenience.
Implementation Method 1
stable movement through electromagnetic forces
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a movable part, a fixed part, and a driving assembly. The movable part is for connecting an optical element. The movable part moves relative to the fixed part. The driving assembly is for driving the movable part to move.