Imaging Device Gyro Sensor Mount Base Integration
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Solution Overview
Problem
Conventional imaging devices face challenges in accurately correcting image shakes due to increased sensitivity of gyro sensors leading to erroneous detection of disturbances, and the configuration of separate components between the gyro sensor and imaging element reduces correction accuracy.
Innovation Solution
An imaging device configuration where the imaging element and gyro sensor unit are held by the same mount base, reducing the number of interposed members and distance between them, with adjustable positions and materials to minimize erroneous detection and movement differences, and a gyro sensor unit with cushion materials to absorb impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensitivity of the gyro sensor is increased to more accurately detect image shake, then the correction accuracy is improved, but the gyro sensor erroneously detects disturbances such as shutter impact
Solution Approach 1:
A cushion member is introduced as an intermediary between the gyro sensor and the exterior member. This cushion member selectively transmits shake movements while absorbing or blocking disturbance impulses, allowing the gyro sensor to accurately detect image shake without erroneously detecting shutter impacts or other disturbances
Solution Approach 2:
The cushion member is designed with specific material properties (elastic modulus, damping characteristics) that allow it to transmit low-frequency shake movements while filtering out high-frequency disturbances. By carefully selecting and tuning the cushion member's physical parameters, the system achieves both sensitive shake detection and disturbance rejection
2Device complexity
If the gyro sensor is attached to a separate member from the imaging element, then the device structure is simplified, but the distance and number of interposed members increase reducing correction accuracy
Solution Approach 1:
The gyro sensor unit and image-shake correction unit are merged onto a common mount base, reducing the distance between them and minimizing the number of interposed members. This integration ensures that both components experience the same movements, improving the accuracy of image shake correction while maintaining structural simplicity through the shared mount base
3Adaptability or versatility
If multiple members are interposed between the gyro sensor and imaging element, then the device can accommodate more components, but the difference in movement amount increases reducing correction accuracy
Solution Approach 1:
The gyro sensor unit and image-shake correction unit are mounted on the same mount base, ensuring they move together as a unified structure. This merging approach eliminates relative movement between the components while still allowing the device to accommodate additional components through the versatile mount base structure
4Object-affected harmful factors
If cushion materials are added to the gyro sensor unit, then the absorption of impacts and disturbances is improved, but the device complexity increases
Solution Approach 1:
A cushion member is positioned between the gyro sensor and the exterior member to serve as a mediator that absorbs impacts and disturbances. This single strategically-placed cushion component provides effective disturbance rejection without significantly increasing overall device complexity
Solution Approach 2:
The cushion member is pre-installed between the gyro sensor unit and the exterior member to provide beforehand protection against shocks and vibrations. This prior cushioning prevents disturbance transmission to the gyro sensor before the disturbances occur, protecting the sensitive sensor without requiring complex active damping systems
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 configuration enhances the accuracy of image shake correction by reducing the difference in movement between the gyro sensor and imaging element, suppressing erroneous detection, and allowing for precise adjustment to improve image stability.
Implementation Method 1
a sensor-side cushion material 173 and a plate-side cushion material 175
Implementation Method 2
absorb impacts
Data Source
Figure 1~2
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Figure 4
AI summary
An imaging device is provided that can correct more accurately an image shake. The imaging device according to the present disclosure includes an imaging element taking an object image to generate image data, a gyro sensor unit including a gyro sensor, an image-shake correction unit holding the imaging element, moving the imaging element based on an output of the gyro sensor, and correcting a shake of an object image taken by the imaging element, and a mount base holding the gyro sensor unit and the image-shake correction unit.