Shutter Unit Elastic Support for Imaging Shake Suppression
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Solution Overview
Problem
Existing imaging devices face challenges in effectively suppressing vibrations caused by shutter operation and maintaining the position of the shutter unit with high accuracy, leading to potential misalignment and image quality degradation.
Innovation Solution
The imaging device employs a shutter unit supported by at least three elastic members disposed on its outer periphery, forming a polygon with intersecting elastic forces to stabilize the shutter unit, and incorporates a shake correction mechanism that moves the image sensor and vibration-proof lens to correct for camera shake.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shutter unit is mounted on a frame in existing imaging devices, then the shutter can adjust light amount, but vibrations are generated during shutter operation that degrade image quality
Solution Approach 1:
Elastic members are introduced as intermediary elements between the shutter unit and the frame. These elastic members act as mediators that absorb and dampen vibrations generated during shutter operation, preventing the vibrations from being transmitted to the imaging element and degrading image quality. The elastic members provide a compliant connection that isolates the harmful vibrational effects while maintaining the functional connection between components.
2Object-generated harmful factors
If the shutter unit is freely movable to suppress vibration, then vibration suppression improves, but positioning accuracy deteriorates
Solution Approach 1:
The elastic members are designed with specific elastic properties and stiffness characteristics that can be adjusted as parameters. By carefully selecting and tuning the elastic properties of these members, the system achieves an optimal balance where vibrations are sufficiently suppressed while the shutter unit maintains accurate positioning. The elastic members provide controlled flexibility that dampens vibrations without allowing excessive movement that would compromise positioning precision.
3Object-generated harmful factors
If elastic members are used to support the shutter unit, then vibration suppression improves, but device complexity increases
Solution Approach 1:
The elastic members serve multiple functions simultaneously: they support the shutter unit, dampen vibrations, provide positioning, and absorb shock. By designing these members to perform multiple roles, the overall device complexity is minimized while achieving effective vibration suppression. Rather than adding separate components for each function, the elastic members are designed to be multi-functional elements that address several requirements at once.
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 achieves precise shutter positioning and effective shake suppression, ensuring high-accuracy image capture by minimizing vibrations and maintaining image stability during operation.
Implementation Method 1
each of the at least three or more elastic members is elastically deformed in a first direction that is a direction in which each of the at least three or more elastic members presses the shutter unit from the frame
Implementation Method 2
the first directions of the at least three or more elastic members intersect with each other at a specific spot inside the contour
Implementation Method 3
a shake correction mechanism that moves the image sensor in a plane perpendicular to an optical axis of the imaging optical system to correct a shake
Implementation Method 4
the imaging optical system includes a vibration-proof lens that is moved in a plane perpendicular to an optical axis of the imaging optical system to correct a shake
Data Source
AI summary
An imaging device that includes a shutter unit including a shutter adjusting an amount of subject light incident on an image sensor through an imaging optical system. The shutter unit being mounted on a frame. The at least three or more elastic members are disposed on an outer periphery of a contour of the shutter unit in a front view and press the shutter unit from the frame to support the shutter unit, each of the at least three or more elastic members is elastically deformed in a first direction that is a direction in which each of the at least three or more elastic members presses the shutter unit from the frame and a second direction that is a direction perpendicular to the first direction, and the first directions of the at least three or more elastic members intersect with each other at a specific spot inside the contour.