Camera Shutter Vibration Timing for Long Exposure Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image pickup apparatuses with electronic shutters struggle to inform users of the start and end of long exposure, as the vibration from the vibration device occurs only once, making it difficult to recognize both the start and end of the exposure.
Innovation Solution
The image pickup apparatus includes an electronic shutter with electronic front and rear curtain operations, and a vibration control unit that generates first vibration before charge accumulation starts and second vibration after it finishes, allowing users to recognize the start and end of long exposure through distinct vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vibration device generates vibration only once during long exposure, then the vibration intensity does not affect imaging, but the user cannot recognize both the start and end of the exposure
Solution Approach 1:
The single vibration event is segmented into two separate vibration events: one at the start of exposure and one at the end of exposure. This allows the user to recognize both timing points while keeping each vibration intensity low enough not to affect image quality.
Solution Approach 2:
The first vibration is generated in advance at the exposure start timing to notify the user before the actual exposure begins, allowing the user to prepare for the long exposure period.
2Ease of operation
If the vibration device generates strong vibration to notify the user, then the user can recognize the shutter operation, but the vibration affects imaging during long exposure
Solution Approach 1:
Different vibration intensities are applied at different timing: weak vibration during exposure (to avoid affecting imaging) and stronger vibration at exposure end (when imaging is complete). This local differentiation of vibration quality resolves the contradiction between user notification and image quality.
3Ease of operation
If the vibration device generates vibration at the same timing as mechanical shutter, then the user can recognize shutter operation, but only one vibration occurs regardless of shutter speed
Solution Approach 1:
The vibration device performs periodic actions at different exposure timings: generating vibration at both the start and end of exposure. This periodic vibration pattern provides the user with information about both the beginning and duration of the exposure period.
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 solution enables users to clearly recognize the start and end of long exposure, enhancing user experience by providing tactile feedback without affecting image quality.
Implementation Method 1
a vibration generator configured to generate vibration
Data Source
AI summary
An image pickup apparatus includes an image sensor configured to receive light and accumulate charges, a vibration generator configured to generate vibration, an image sensor control unit configured to cause the image sensor to perform an electronic front curtain operation to start accumulating the charges, and an electronic rear curtain operation to finish accumulating the charges, and a vibration control unit configured to control the vibration generator. The vibration control unit causes the vibration generator to generate first vibration before accumulating the charges is started and second vibration after the accumulating the charges are finished.