Optical Element Drive Mechanism With Guided Miniaturized Positioning
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Solution Overview
Problem
Existing optical element drive mechanisms face challenges in miniaturization while maintaining functionality, particularly in electronic devices like smartphones and tablets, where multiple optical elements need to be efficiently positioned to achieve image capture and video recording capabilities.
Innovation Solution
The optical element drive mechanism incorporates an immovable part, a first movable part, a first drive assembly, and a guidance assembly, utilizing bar-like structures made of metal materials and ceramic contact elements to guide and drive optical elements, allowing for precise movement and adjustment within defined limits, enhancing mechanical strength and reducing friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple optical elements are placed in the optical mechanism to achieve image capture and video recording, then the functionality is improved, but the device size increases and miniaturization is hindered
Solution Approach 1:
The patent employs a periscope optical mechanism that changes the direction of the optical path, allowing optical elements to be arranged in a three-dimensional space rather than a linear configuration. This dimensional change enables multiple optical elements to be compactly positioned while maintaining optical functionality and achieving device miniaturization.
2Volume of moving object
If the optical mechanism is miniaturized to reduce device size, then the volume is reduced, but the positioning precision of optical elements deteriorates
Solution Approach 1:
The optical mechanism is divided into separate functional modules including a periscope optical mechanism module and an optical element drive mechanism module. Each module is independently designed and positioned, allowing precise control of optical element locations even in a miniaturized configuration. The segmentation enables accurate positioning while maintaining compact overall dimensions.
3Device complexity
If traditional drive mechanisms are used to move optical elements, then the structure is simple, but the mechanical strength is insufficient and friction is high
Solution Approach 1:
The drive mechanism employs composite material construction with metal guide rails providing structural strength and low-friction surfaces, combined with magnetic drive elements for actuation. This composite approach delivers high mechanical strength and reduced friction while maintaining a relatively simple overall structure suitable for miniaturized devices.
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 enables miniaturization of electronic devices by allowing multiple optical elements to be efficiently positioned, improving mechanical strength, and reducing unwanted movements like shake and vibration, thus enhancing image and video capture capabilities.
Implementation Method 1
The first drive assembly includes a first coil and a first magnetic element. The magnetic poles of the first magnetic element are arranged in a first direction. The winding axis of the first coil is parallel with the first direction. At least part of the first magnetic element is located in the first coil.
Implementation Method 2
The guidance assembly includes a first guidance element and a first contact unit. The first contact unit is in direct contact with the first guidance element. The first contact unit includes a plurality of first contact elements fixedly disposed in the first movable part or the immovable part.
Data Source
AI summary
An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a first movable part, a first drive assembly, and a guidance assembly. The first movable part is movable relative to the immovable part. The first movable part is connected to a first optical element. The first drive assembly drives the first movable part to move relative to the immovable part. The guidance assembly guides the movement of the first movable part in the first dimension.