Electromagnetic Camera Shutter Device for Mobile Miniaturization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional camera shutter devices in mobile devices are bulky, power-intensive, and have slow response times due to complex mechanisms, which hinder high-resolution image capture and increase battery consumption.
Innovation Solution
A miniaturized camera shutter device utilizing a pair of cores wrapped with coils, a magnet system with opposing polarity, and a yoke to induce and block electromagnetic forces, allowing for rapid and stable opening and shutting of shutter blades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a conventional shutter device with multiple gears and link mechanisms is used, then the shutter can open and shut the lens nozzle, but the device becomes bulky, consumes more power, and has slower response speed
Solution Approach 1:
The patent replaces the conventional mechanical gear and link mechanism with an electromagnetic driving system consisting of a coil, core, and magnet. This substitution eliminates complex mechanical transmissions, reduces the number of moving parts, and enables faster response speed by directly converting electrical energy to mechanical motion through electromagnetic force.
Solution Approach 2:
The invention extracts and eliminates unnecessary intermediate mechanical components (gears, linkages) from the shutter mechanism, retaining only the essential elements (shutter blade, driving unit with coil-core-magnet) needed to achieve the shutter function. This simplification directly reduces device complexity and improves response time.
2Area of stationary object
If a conventional shutter device with multiple gears and link mechanisms is used, then the shutter can open and shut the lens nozzle, but the device occupies more installation space
Solution Approach 1:
By replacing the multi-component mechanical transmission system with a compact electromagnetic driving unit, the patent significantly reduces the horizontal and vertical space requirements. The coil-core-magnet assembly occupies minimal space compared to multiple gears and linkages, enabling shutter integration in space-constrained mobile devices.
Solution Approach 2:
The invention merges multiple functional components into a single integrated driving unit where the coil, core, and magnet work together in close proximity. This consolidation eliminates the need for separate mechanical transmission components, reducing both the number of parts and the total installation area required.
3Use of energy by moving object
If a conventional shutter device with multiple gears and link mechanisms is used, then the shutter can open and shut the lens nozzle, but power transmission loss increases and battery consumption increases
Solution Approach 1:
The patent replaces the mechanical power transmission chain with direct electromagnetic actuation. The coil generates electromagnetic force that directly moves the magnet and shutter blade, eliminating power transmission losses through gears and linkages. This direct drive approach improves energy efficiency by converting electrical energy to mechanical work with minimal loss.
Solution Approach 2:
By extracting and removing the intermediate mechanical transmission components, the invention eliminates the power transmission losses that occur in gear meshes and linkages. The direct electromagnetic drive path from coil to magnet to shutter blade ensures that most of the input electrical energy is converted to useful mechanical work, reducing overall power consumption.
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 a compact, lightweight shutter device with enhanced opening/shutting speed and stability, reducing power consumption and improving image quality.
Implementation Method 1
a pair of cores each wrapped by a coil, each core facing the other and formed at a distal end with an electromagnetic force line generating unit
Implementation Method 2
the core is mounted with a yoke for inducing and blocking an electromagnetic force line
Data Source
AI summary
A camera shutter device and an optical apparatus having the same are disclosed. The camera shutter device includes a pair of cores, each wrapped by a coil and having a distal end facing the other, wherein each coil is formed at the distal end with an electromagnetic force line generating unit. A magnet comprising a first magnet and a second magnet is interposed between the pair of cores. The magnet linearly and reciprocally moves in a direction perpendicular to the electromagnetic force line generating unit, and a slider opens and shuts a shutter blade as the magnet linearly and reciprocally moves, whereby miniaturization and thinning of the shutter device can be realized, and an opening/shutting operation can be stably performed.