Imaging Apparatus Frame Speed Control via Margin Time Adjustment
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Solution Overview
Problem
Existing imaging apparatuses experience variations in continuous shooting frame speed due to mechanical fatigue and environmental factors, leading to inconsistent performance over time.
Innovation Solution
The imaging apparatus includes a mechanical shutter, a frame speed detector, and a control section that adjusts the frame speed by modifying the margin time during the capturing sequence to maintain a constant frame speed, using a CPU to calculate and update the average frame speed based on detected changes and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous shooting is performed with a mechanical shutter, then capturing capability is improved, but frame speed varies due to mechanical fatigue
Solution Approach 1:
The control section measures the actual frame speed during continuous shooting and compares it with the target frame speed. Based on this feedback, the control section adjusts the margin time (the time interval between the end of one exposure and the start of the next exposure) to compensate for frame speed variations caused by mechanical fatigue, thereby maintaining consistent frame speed over time.
Solution Approach 2:
The system dynamically changes the margin time parameter during continuous shooting operations. When frame speed decreases due to mechanical fatigue, the control section increases the margin time to allow the mechanical shutter more time to complete its cycle, thereby restoring the frame speed to the target value.
2Reliability
If margin time is increased to maintain frame speed, then frame speed consistency is improved, but shooting efficiency decreases
Solution Approach 1:
The margin time is not fixed but dynamically adjusted during continuous shooting. The control section continuously monitors frame speed and modifies the margin time in real-time based on actual performance. This dynamic adjustment ensures that the margin time is only increased when necessary to maintain frame speed consistency, minimizing the impact on shooting efficiency.
Solution Approach 2:
The system changes the margin time parameter adaptively based on measured frame speed. When frame speed remains within the acceptable range, the margin time is kept minimal to maximize shooting efficiency. When frame speed deviates from the target, the margin time is adjusted to restore performance, achieving an optimal balance between consistency and efficiency.
Data Source
AI summary
Provided is an imaging apparatus that can shoot at a specified frame speed during continuous shooting. The imaging apparatus in the present disclosure is an imaging apparatus for performing continuous shooting at a specified frame speed, the imaging apparatus including an imaging element configured to generate image data by imaging an object image, a mechanical shutter configured to control an exposure for the imaging element, a frame speed detector configured to detect a frame speed of the continuous shooting, and a control section configured to perform a read operation of the image data and control of the mechanical shutter. The control section adjusts the frame speed of the continuous shooting when a difference between the specified frame speed and the frame speed of the continuous shooting exceeds a predetermined range.