Angled Magnetic Conversion Lens Attachment Structure
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Solution Overview
Problem
Conventional conversion lens attachment structures for mobile devices require a large metal piece orthogonal to the camera's optical axis, leading to a bulky attachment area, which compromises the compactness and holding strength of the lens.
Innovation Solution
A conversion lens attachment structure utilizing a first magnetic body on the lens device and a second magnetic body on the device main body, where the magnetic surfaces are angled such that their normal lines are not parallel to the optical axis, allowing for a stronger attraction force while minimizing the required attachment area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal piece is provided orthogonal to the optical axis of the camera, then the conversion lens can be held in place, but the attachment region becomes large and the structure becomes bulky
Solution Approach 1:
The patent changes the orientation of the magnetic body from orthogonal to the optical axis to an inclined orientation. The normal line of the second surface of the second magnetic body is made to be inclined relative to the optical axis of the master lens, thereby utilizing a different spatial dimension to achieve both compactness and holding strength
Solution Approach 2:
The patent changes the geometric parameter of the magnetic body orientation. By adjusting the angle between the normal line of the magnetic body surface and the optical axis, the patent optimizes both the holding force and the attachment area, resolving the contradiction between reliability and area
2Force
If a metal piece of certain size is provided to obtain sufficient attractive force, then the conversion lens can be prevented from falling off, but the attachment structure becomes bulky
Solution Approach 1:
The patent utilizes inclined orientation of the magnetic body to change the spatial arrangement. This dimensional change allows the magnetic force to be effectively concentrated in a smaller volume, achieving sufficient attractive force without increasing the attachment structure volume
Solution Approach 2:
By changing the orientation parameter of the magnetic body (making the normal line inclined rather than orthogonal), the patent optimizes the magnetic field distribution to achieve sufficient attractive force with a compact structure
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 configuration enhances the holding strength of the conversion lens while maintaining a compact structure, preventing the lens from detaching and allowing for easy attachment and detachment, thus addressing the bulkiness and stability issues of conventional methods.
Implementation Method 1
the conversion lens device is held in a state attached to the device main body due to an attraction effect between a first surface of the first magnetic body and a second surface of the second magnetic body
Data Source
AI summary
A conversion lens attachment structure includes a first magnetic body provided on a conversion lens device that includes a conversion lens, and a second magnetic body provided on a device main body that includes a master lens. The conversion lens device is attached to the device main body due to a first surface of the first magnetic body and a second surface of the second magnetic body being pulled toward each other, and the second magnetic body is provided such that a normal line of the second surface is not parallel to an optical axis of the master lens.