Magnetic Camera Shutter Mechanism for Compact Click Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional shutter mechanisms for laptop PCs are difficult to downsize due to the inclusion of a deformable elastic body like a flat spring, which generates a click sensation but occupies space, making them bulky.
Innovation Solution
A shutter mechanism using sheet-shaped magnet sheets with alternating north and south poles, where the second sheet member's magnetization pattern is inverted relative to the first, allowing for a compact design without the need for a flat spring, and generating a click sensation through repulsive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a deformable elastic body such as a flat spring is used to generate click sensation and prevent careless movement, then the shutter mechanism can maintain position stability, but the device size increases and downsizing becomes difficult
Solution Approach 1:
The patent replaces the mechanical flat spring system with a magnetic field-based positioning system. Two sheet-shaped magnet sheets with alternating north and south poles are arranged facing each other with a specific air gap, creating magnetic repulsion forces that provide click sensations and position stability without requiring deformable elastic bodies, thereby enabling downsizing of the shutter mechanism
Solution Approach 2:
The patent changes the physical state from mechanical deformation to magnetic field interaction. By controlling the air gap distance between the two magnet sheets and configuring the alternating pole patterns, the system achieves position stability through magnetic repulsion parameters rather than mechanical spring constants, allowing for a more compact design
2Ease of operation
If a flat spring mechanism is used to create click sensation during shutter movement, then user feedback is provided, but the mechanism becomes bulky and complex
Solution Approach 1:
The patent substitutes the mechanical flat spring click mechanism with a magnetic field-based click sensation system. The alternating north and south pole arrangements on two sheet-shaped magnet sheets create magnetic repulsion that generates click sensations during shutter movement, providing user feedback while eliminating the need for complex mechanical spring structures
Solution Approach 2:
The patent uses composite magnetic sheet structures with alternating pole patterns. By combining multiple magnetized regions in a sheet-shaped configuration, the system achieves click sensation generation through magnetic field interactions rather than mechanical components, simplifying the overall mechanism 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
The mechanism achieves downsizing while providing an appropriate click sensation, preventing unintended camera use, and reducing the device's overall size and weight.
Implementation Method 1
a first sheet member that is a sheet-shaped magnet sheet relatively fixed to the chassis, the first sheet member including north poles and south poles that are alternately arranged in a slide movement direction at a predetermined pitch; and a second sheet member that is a sheet-shaped magnet sheet relatively fixed to the shutter
Implementation Method 2
the second sheet member including north poles and south poles that are alternately arranged in the slide movement direction at the predetermined pitch and having a magnetization pattern of the north and south poles of the magnetized surface inverted from a magnetization pattern of the first sheet member
Data Source
AI summary
A shutter mechanism includes: a camera that is mounted on a chassis of an information processing apparatus; a shutter that is slidable between a first position and a second position, the first position limiting light reception of a light receiving unit, the second position releasing limitation of the light reception; a first sheet member that is a sheet-shaped magnet sheet relatively fixed to the chassis, the first sheet member including north poles and south poles that are alternately arranged in a slide movement direction at a predetermined pitch; and a second sheet member that is a sheet-shaped magnet sheet relatively fixed to the shutter so that a magnetized surface of the sheet faces a magnetized surface of the first sheet member, the second sheet member including north poles and south poles that are alternately arranged in the slide movement direction at the predetermined pitch.