Camera Shutter Assembly Using SMA Spring for Privacy Blocking
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Solution Overview
Problem
Existing portable electronic devices with image capturing modules are vulnerable to privacy leaks through remote control by cyber hackers, as their shielding mechanisms can be breached, allowing unauthorized access to private images.
Innovation Solution
An image capturing device with a shielding member that slides to block or unblock the light path of the image capturing module, utilizing a positioning member, memory alloy spring, and restoring spring to switch between open and closed states, ensuring privacy protection through power control and manual operation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image capturing module is always accessible through the Internet, then remote control functionality is improved, but privacy security deteriorates
Solution Approach 1:
The patent implements a shielding member that can be positioned in advance to block the light path of the image capturing module before any potential hacking attempt occurs. The system provides a default closed state that preemptively prevents privacy leaks, while allowing authorized remote access when the shield is opened through proper authentication.
Solution Approach 2:
The shielding member acts as an intermediary physical barrier between the external environment (including potential hackers) and the image capturing module. It mediates access by providing a controllable light path blockage mechanism that can be opened only through authenticated remote commands, thus protecting against unauthorized access while enabling legitimate remote control.
2Object-affected harmful factors
If a shielding member is added to block the light path, then privacy security is improved, but device complexity increases
Solution Approach 1:
The patent combines the shielding member with the positioning member into an integrated assembly where the shielding member is connected to the positioning member. This merging reduces the number of independent components and simplifies the overall structure while maintaining the privacy protection function.
Solution Approach 2:
The positioning member serves multiple functions: it positions the image capturing module and simultaneously controls the shielding member to block or unblock the light path. This multi-functionality reduces the need for separate mechanisms, thereby reducing device complexity while achieving privacy protection.
3Ease of operation
If the shielding member is manually operated, then ease of operation is improved, but automation level deteriorates
Solution Approach 1:
The patent implements a dynamic system where the shielding member can operate in multiple modes: manual control through the positioning member, and automatic control through Internet-based authentication. The system adapts its operation mode based on the situation, providing both ease of manual operation and automation capability without compromising either aspect.
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
Prevents privacy leaks by blocking the light path of the image capturing module, even if hacked, and offers flexible operation modes for convenience and security, effectively preventing unauthorized image access.
Implementation Method 1
a memory alloy spring disposed in the casing
Implementation Method 2
a restoring spring disposed in the casing
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
An image capturing device (100) includes a casing (110), an image capturing module (120) disposed in the casing, a positioning member (140) slidably disposed in the casing, a memory alloy spring (150) disposed in the casing, a restoring spring (160) disposed in the casing, a shielding member (130) corresponding to the image capturing module and slidably disposed in the casing, and a switch (170) slidably disposed on the casing and connected to the shielding member. Two ends of the memory alloy spring are respectively connected to the positioning member and the casing. Two ends of the restoring spring are respectively connected to the positioning member and the casing, and the memory alloy spring and the restoring spring are respectively located at two opposite sides of the positioning member. The shielding member is connected to the positioning member and blocks or unblocks a light path of the image capturing device.