Double-Camera Drive Device with Shared Magnets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional single-camera mobile devices face limitations in improving imaging quality due to space constraints, resulting in limited photo range and 2D photography, which fails to replicate the human visual experience, and existing dual-camera solutions struggle to reduce magnetic interference and maintain a compact form factor.
Innovation Solution
A double-camera drive device employing a triangulation algorithm and shared driving magnets to simulate human eyes' framing and focusing, achieving clearer opposite angles and wider framing range without increasing phone thickness, using a structure with equidistant driving magnets and Hall detection components for accurate lens positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single-camera photographing device is used, then the device structure is simple and thickness is reduced, but the imaging quality and photo range are limited
Solution Approach 1:
The patent combines two camera modules into a single integrated device, merging their driving mechanisms and sharing magnetic components. This allows dual-camera functionality with improved imaging quality while controlling overall device thickness through shared structural elements and optimized magnetic field arrangement.
Solution Approach 2:
The patent implements a universal driving structure where a single driving magnet and control mechanism serve both camera modules. This multi-functional approach allows one set of magnetic components to drive two separate lens assemblies, reducing the number of parts needed and maintaining compact dimensions while providing enhanced photographing capabilities.
2Reliability
If two separate AF actuation assemblies with magnets are used for each lens barrel, then independent AF operation is achieved, but magnetic interference increases and space requirements increase
Solution Approach 1:
The patent merges the magnetic driving components by using a single shared driving magnet that provides magnetic field to both lens barrels through the magnetic circuit. This consolidation reduces the total magnetic component count and minimizes magnetic interference between the two AF systems while maintaining independent operation capability through separate magnetic circuit paths.
Solution Approach 2:
The patent introduces a magnetic circuit structure that acts as an intermediary between the single driving magnet and the two lens barrels. This magnetic circuit efficiently distributes magnetic flux to both lenses while isolating their magnetic fields, thereby reducing mutual interference and enabling independent AF operation with fewer magnetic components.
3Reliability
If two separate AF actuation assemblies are used, then independent lens control is achieved, but the number of parts and fabrication costs increase
Solution Approach 1:
The patent merges multiple magnetic components into a single shared driving magnet that controls both lens barrels. This reduction in part count simplifies the assembly process, reduces fabrication costs, and decreases the number of components that need to be precisely positioned during assembly, while still enabling independent control of each lens through the magnetic circuit design.
4Manufacturing precision
If the lens quality and sensor size are increased to improve imaging quality, then photographing quality improves, but the device thickness and space requirements increase
Solution Approach 1:
The patent combines two camera modules with improved lens quality and larger sensors into a single integrated structure with shared magnetic driving components. This merging approach allows the device to accommodate higher-quality imaging components while controlling overall thickness by eliminating redundant magnetic assemblies and optimizing the shared magnetic circuit space.
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 better photographing quality with a 3D effect similar to human vision, providing a more accurate and enhanced photography experience while maintaining a slim form factor and reducing magnetic interference and costs.
Implementation Method 1
a Hall detection component, including a Hall magnet and a PCB component with a Hall chip
Implementation Method 2
a drive coil wound at an outer periphery of the lens support
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
A double-camera drive device, including: cover bodies, including a first cover body and a second cover body, and each of the cover bodies being provided with a lens accommodating cavity; photographing components, including a first photographing component and a second photographing component, and each of the photographing components including an upper spring, an upper cover, a lens support winded with a drive coil at a outer periphery, driving magnets and a lower spring, wherein the driving magnets includes a left driving magnet, a right driving magnet and a middle driving magnet; and Hall detection components, including a first Hall detection component and a second Hall detection component, and each of the Hall detection components including a Hall gasket and a Hall magnet provided on each of lens supports, and a Printed Circuit Board (PCB) component. According to the double-camera drive device, through a triangulation algorithm for simulating two eyes of a person, on the premise of not increasing the thickness of a mobile phone, the beneficial effects of clearer opposite angles, wider framing range and better quality of photographed images are implemented.