Imaging Device Anti-Vibration Lens Centering During Live View
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Solution Overview
Problem
Existing imaging devices with optical-image-stabilizer (OIS) and body-image-stabilizer (BIS) functions face issues with image quality deterioration due to lens movement during centering, causing a shift in the angle of view that is visually perceived during live view image display, especially when centering is performed during video recording.
Innovation Solution
An imaging device with a suppression unit that moves anti-vibration elements based on vibration detection and a control unit that manages the display to obscure the visual perception of the shift in angle of view during centering, allowing for continuous video recording without image quality deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the anti-vibration lens is moved to suppress image blur, then image quality deteriorates due to aberration changes, but if the lens is kept at reference position, then image quality is maintained but image blur cannot be suppressed
Solution Approach 1:
The system performs centering of the anti-vibration lens in advance before video recording starts, during the live view display phase. This preliminary action ensures the lens is properly positioned before actual recording begins, preventing both image blur and quality deterioration during the recording process.
Solution Approach 2:
The system dynamically adjusts the operation mode of the anti-vibration lens based on the imaging state. During live view display, the lens is allowed to move for centering and blur suppression. During video recording, the lens position is fixed to maintain image quality while blur suppression is achieved through other means or pre-positioning.
2Productivity
If centering is performed during live view image display, then a shift in angle of view is visually perceived, but if centering is delayed, then video recording cannot start quickly
Solution Approach 1:
Centering is performed as a preliminary action during the live view display phase before video recording starts. Although this causes temporary visual perception of angle of view shift during live view, it ensures the lens is properly centered before recording begins, enabling quick video recording start without compromising final image quality.
Solution Approach 2:
The system accepts the temporary visual disturbance during live view as a necessary trade-off to prevent more significant issues during actual recording. By performing centering beforehand, it cushions against potential image quality deterioration and angle of view shifts that would occur if centering were delayed or performed during recording.
3Manufacturing precision
If the anti-vibration lens is centered during video recording, then image quality is maintained, but the recording process is interrupted and productivity decreases
Solution Approach 1:
All necessary centering operations are performed as preliminary actions before video recording starts. This separates the centering process from the recording process, allowing centering to occur during live view display without interrupting the actual video recording, thereby maintaining both image quality and recording efficiency.
Solution Approach 2:
The system dynamically changes the operational state of the anti-vibration lens based on the imaging phase. During live view, the lens is movable for centering adjustments. During video recording, the lens position is locked or restricted to prevent movement that would interrupt recording, while still maintaining image quality through the pre-performed centering.
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 effectively suppresses the visual perception of the shift in angle of view during centering, enabling quick video recording start and maintaining image quality by strategically controlling the anti-vibration element movement and display operations.
Implementation Method 1
since the anti-vibration lens is moved and subject light is refracted in the case of the OIS function
Implementation Method 2
a detection unit detecting vibration applied to a device
Data Source
AI summary
An imaging device includes: a suppression unit that moves an anti-vibration element to a position, which is determined according to a detection result of a detection unit detecting vibration applied to the device, to suppress an influence of the vibration on a subject image; and a control unit that performs control on a display unit to display the subject image as a video image and performs control on the suppression unit to center the anti-vibration element while a visibility-obstruction phenomenon, which is predetermined as a phenomenon where the visual recognition of a shift in an angle of view caused by the centering of the anti-vibration element can be obstructed, occurs in a state where an operation for displaying the video image by the display unit is being performed and an operation for suppressing the influence by the suppression unit is being performed.