Adaptive Vibration Suppression for Interchangeable Lens Imaging

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Solution Overview

Problem

Existing imaging devices face challenges in maintaining image quality when interchangeable lenses are changed, as the fixed suppression of vibration influences can lead to image deterioration.

Innovation Solution

An imaging device with a body-side suppression unit and a control unit that adjusts the suppression of vibration influences based on detected vibrations and information about the mounted lens, allowing for adaptive control of rotation and non-rotation influence suppression processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a fixed degree for limiting the suppression of vibration influence is applied regardless of lens interchange, then the suppression mechanism is simple to implement, but image quality deteriorates when lenses are changed

Engineering Contradiction:
Improvesuppression mechanism complexityVSAvoidimage quality
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The suppression degree is made dynamic rather than fixed. The control unit adjusts the suppression degree based on lens information (such as focal length) detected when lenses are interchanged. This allows the system to adapt the vibration suppression characteristics to match different lens properties, preventing image quality deterioration while maintaining reasonable mechanism complexity.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If the suppression degree is adjusted according to lens information, then image quality is maintained during lens interchange, but the control system becomes more complex

Engineering Contradiction:
Improveimage qualityVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system implements feedback control by detecting lens information (such as focal length) and using this information to automatically adjust the suppression degree. The control unit receives lens identification data and dynamically modifies the vibration suppression parameters accordingly, ensuring optimal image quality without requiring manual intervention or overly complex control algorithms.

Inventive Principle:
Principle #23Feedback

3Object-affected harmful factors

If the imaging element is moved according to shake detection, then image blur is suppressed, but image quality deteriorates when lenses are interchanged due to fixed suppression limits

Engineering Contradiction:
Improveimage blurVSAvoidimage quality
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The suppression parameters are changed based on lens characteristics. When different lenses are interchanged, the control unit modifies the suppression degree parameter according to the detected lens information (such as focal length). This ensures that the imaging element movement for blur suppression is optimized for each lens type, preventing quality deterioration while effectively suppressing image blur.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10802380B2Imaging device, imaging control method, and program
Publication Date: 2020.10.13 FUJIFILM CORP
  • US10802380B2 patent drawing
  • US10802380B2 patent drawing
  • US10802380B2 patent drawing

AI summary

An imaging device includes: an imaging device body including an imaging element that receives reflected light representing a subject as a subject image, and a body-side suppression unit that suppresses an influence of vibration, which is applied to a device, on the subject image on the basis of a detection result of a detection unit detecting the vibration; and a control unit performing control on the body-side suppression unit to suppress the influence with a limit that is a degree for limiting the suppression of the influence performed by the body-side suppression unit and is determined according to information about an interchangeable imaging lens mounted on the imaging device body.