Gyro Sensor Mounting Structure for Imaging Device Vibration Isolation
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Solution Overview
Problem
Conventional imaging devices with gyro sensors for camera shake detection are overly sensitive, leading to erroneous detection of disturbances like shutter shock as camera shake, which affects the accuracy of shake correction.
Innovation Solution
The imaging device employs a holding configuration for the shake detection unit, sandwiching it between cushion members and sheet metals in two facing directions to absorb vibrations and distribute loads uniformly, thereby suppressing erroneous detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the gyro sensor is mounted directly in the imaging device, then the device complexity is reduced, but the measurement precision deteriorates due to erroneous detection of disturbances
Solution Approach 1:
The patent introduces cushion members as intermediary elements between the gyro sensor and the imaging device housing. These cushion members act as mediators that isolate the sensor from external disturbances while maintaining the structural integration, thereby improving measurement precision without significantly increasing overall device complexity
Solution Approach 2:
The patent applies beforehand cushioning by positioning cushion members around the gyro sensor mounting area to absorb and dampen disturbances before they reach the sensor. This preventive cushioning approach ensures accurate measurements by preemptively counteracting the effect of external shocks and vibrations
2Measurement precision
If the gyro sensor is highly sensitive to detect camera shake, then the measurement precision improves, but the object-affected harmful factors worsen due to erroneous detection of disturbances
Solution Approach 1:
The cushion members serve as intermediary elements that allow the highly sensitive gyro sensor to detect camera shake accurately while filtering out harmful disturbances. The intermediary structure transmits genuine camera shake signals to the sensor while blocking spurious signals from external sources
Solution Approach 2:
The patent applies local quality by providing targeted cushioning protection specifically at the gyro sensor mounting location rather than throughout the entire device. This localized approach maintains high sensitivity for camera shake detection while preventing disturbance interference only where the sensor is most vulnerable
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 effectively reduces the detection of vibrations caused by disturbances, ensuring accurate detection of camera shake and improving the overall accuracy of shake correction.
Implementation Method 1
a first cushion member that abuts on the first sheet metal and faces the shake detection unit via the first sheet metal; and a second cushion member that abuts on the second sheet metal and faces the shake detection unit via the second sheet metal
Implementation Method 2
suppressing erroneous detection of a vibration due to a disturbance, such as a shock
Data Source
AI summary
An imaging device includes: a shake detection unit that holds a gyro sensor inside the shake detection unit; a first sheet metal and a second sheet metal that sandwich the shake detection unit in two facing directions; a first cushion member that abuts on the first sheet metal and faces the shake detection unit via the first sheet metal; and a second cushion member that abuts on the second sheet metal and faces the shake detection unit via the second sheet metal.