Camera Accessory Vibration Correction Feedback
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Solution Overview
Problem
Existing camera systems face challenges in accurately transmitting information about the state of an interchangeable lens, which can compromise vibration correction performance if the information is inappropriate.
Innovation Solution
A camera accessory system that includes a correction optical system, a vibration detection unit, a calculation unit, and a communication unit to detect and transmit the moving amount of the correction optical system, ensuring accurate information exchange between the camera body and the interchangeable lens for effective vibration correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If information about the correction optical system state is transmitted to the camera body, then vibration correction performance is improved, but information accuracy and reliability may be compromised
Solution Approach 1:
The patent implements a feedback mechanism where the correction optical system continuously transmits its state information (position, moving amount) to the camera body, which then uses this information to adjust its own correction amount. This closed-loop feedback ensures that the camera body has accurate, real-time information about the lens's vibration correction state, enabling coordinated correction and improving overall reliability while maintaining information accuracy through direct state reporting.
Solution Approach 2:
The patent introduces an intermediary communication protocol that transmits specific state parameters (current position, moving amount) of the correction optical system between the interchangeable lens and camera body. This intermediary information exchange mechanism ensures accurate transmission of critical state data without loss or distortion, enabling the camera body to make informed correction decisions while maintaining information integrity.
2Stability of the object's composition
If the correction optical system moves to correct vibration, then image stability is improved, but the complexity of the system increases
Solution Approach 1:
The patent divides the vibration correction function into two independent but coordinated segments: the correction optical system in the interchangeable lens and the correction mechanism in the camera body. Each segment operates independently with its own control, but they communicate through state information exchange. This segmentation allows each part to be optimized separately while working together to achieve image stability, reducing the complexity burden on any single component.
Solution Approach 2:
The patent merges the vibration correction capabilities of the interchangeable lens (correction optical system) with the camera body's correction mechanism into a unified coordinated system. By combining both correction systems and enabling them to work together through information exchange about state and moving amount, the system achieves enhanced image stability while distributing the complexity across both components rather than concentrating it in one place.
Data Source
AI summary
A camera accessory that is attachable to and detachable from a camera body, includes: a correction optical system that is movable in a direction intersecting an optical axis thereof; a vibration detection unit that detects a vibration of the camera accessory and outputs a detected signal; a calculation unit that calculates a moving amount of the correction optical system based on the detected signal; and a first communication unit that transmits to the camera body an accessory side information for calculating the moving amount with the calculation unit.