Magnetic Mounting for Thin Optical Device Frames
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Solution Overview
Problem
Existing functional lenses with thick frames cause vignetting issues, especially when used with wide-angle or ultra-wide-angle lenses, as the thick frame negatively impacts camera images.
Innovation Solution
An optical device with a magnetic mounting and dismounting mechanism, featuring a frame made of magnetically permeable material and an accommodating space with external threads, allowing for embedding within a camera lens or adapter ring, and a mounting tool with a magnetic member for easy attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the frame of the functional lens is made thick to facilitate user holding and rotation, then the ease of operation is improved, but the frame thickness causes vignetting and negatively impacts camera images
Solution Approach 1:
The patent replaces the traditional mechanical screw-threaded connection with a magnetic connection system. The frame incorporates magnetic components that enable automatic magnetic attraction and holding, eliminating the need for manual screwing operations. This allows users to simply approach the functional lens to the camera and have it automatically attach, providing ease of operation without requiring a thick frame for manual manipulation.
Solution Approach 2:
The patent changes the connection mechanism from mechanical (screw threads requiring manual rotation) to magnetic (automatic attraction based on magnetic field strength). This parameter change in the connection system allows for a thinner frame design while maintaining ease of operation, as the magnetic force automatically provides both attachment and holding functions without requiring manual manipulation of a thick frame.
2Object-affected harmful factors
If the frame is made thin to reduce vignetting and improve image quality, then the harmful factors are reduced, but the ease of operation deteriorates as the frame becomes too thin to be held and rotated
Solution Approach 1:
The patent substitutes manual mechanical manipulation with magnetic field-based automatic connection. The magnetic components embedded in the thin frame create automatic magnetic attraction when brought near the camera, eliminating the need for users to manually hold and rotate a thick frame. This allows the frame to be made thin for reduced vignetting while maintaining ease of operation through magnetic automatic attachment.
Solution Approach 2:
The magnetic connection system enables the functional lens to attach itself to the camera automatically through magnetic attraction without requiring manual manipulation. The thin frame with magnetic components self-attaches when brought into proximity with the camera's magnetic component, providing ease of operation while maintaining a thin profile that reduces vignetting.
3Ease of operation
If a magnetic connection system is implemented to enable automatic mounting and dismounting, then the ease of operation is improved, but the device complexity increases due to additional magnetic components
Solution Approach 1:
The magnetic components are integrated within the existing frame structure, with magnetic elements nested inside the frame body. This nesting approach allows the magnetic connection system to be incorporated without significantly increasing the external dimensions or visual complexity of the functional lens, maintaining a clean appearance while enabling automatic magnetic mounting and dismounting operations.
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 magnetic mechanism allows for quick and secure mounting and dismounting of the optical device, reducing the negative impact on camera images by minimizing the frame's exposure and thickness, thus avoiding vignetting.
Implementation Method 1
at least a partial region of the frame is made of a magnetically permeable material or a magnetic material... the magnetic member can magnetically attract and stick on the optical device
Data Source
AI summary
An optical device with a magnetic mounting and dismounting mechanism and its mounting and dismounting tool can serve as an optical device set. At least a partial region of a frame of the optical device is made of a magnetically permeable material or a magnetic material. The front side of the frame has at least one first engaging portion. At least a partial region of the mounting and dismounting tool is made of a magnetic material, and one of its sides has at least one second engaging portion. The mounting and dismounting tool can magnetically attract and stick on the optical device to mount the optical device to a camera lens, functional lens or adapter ring, and/or dismount the optical device from the camera lens, functional lens or adapter ring.