Image Blur Correction Synchronization in Camera-Lens Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image pickup apparatuses with both image pickup body and interchangeable lens equipped with image blur correction functions often experience inconsistencies in image blur correction control due to discrepancies in determination times, leading to unnatural images being captured.
Innovation Solution
The apparatus includes a processor that executes programs to function as an image blur correction unit, with a setting unit that adjusts the image blur correction mode based on the detection results from both the image pickup body and lens, prioritizing the higher reliability sensor to synchronize image blur correction operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both image pickup body and lens are equipped with image blur correction functions, then vibration compensation effect is enhanced, but inconsistency in correction control occurs due to determination time discrepancies
Solution Approach 1:
The patent merges the image blur correction control of the image pickup body and lens into a unified system. The image pickup body determines whether image blur correction is required and communicates this determination to the lens, ensuring both components operate consistently. This combines the correction functions while maintaining control consistency through centralized decision-making.
Solution Approach 2:
The patent implements feedback communication between the image pickup body and lens. The image pickup body's determination result is fed back to the lens, allowing the lens to adjust its correction operation accordingly. This feedback mechanism ensures that both components operate in harmony based on the image pickup body's authoritative determination.
2Reliability
If image blur correction is performed based on shake detection sensor signals, then hand shake correction is achieved, but low-frequency drift signals cause unnecessary correction when fixed to tripod
Solution Approach 1:
The patent applies dynamic threshold comparison where the shake amount is continuously compared against a predetermined threshold. When the shake amount exceeds the threshold, image blur correction is performed; when it remains below the threshold (as in tripod situations), correction is inhibited. This dynamic approach adapts the correction operation to actual shake conditions, filtering out low-frequency drift signals that don't represent genuine hand shake.
3Reliability
If image pickup body and lens independently determine image blur correction requirement, then各自的 correction can be optimized, but determination results differ causing unnatural images
Solution Approach 1:
The patent segments the correction optimization function: the image pickup body performs the authoritative determination of whether correction is required, while the lens executes the correction operation based on this determination. This segmentation allows each component to be optimized for its specific function while maintaining overall consistency through the centralized determination approach.
Data Source
AI summary
An image pickup apparatus and a lens device which are capable of preventing an unnatural image from being photographed when both of an image pickup apparatus body and an interchangeable lens are each equipped with an image blur correction function. A system controller of a camera body sets an image blur correction mode of an image processor of the camera body. When a lens device including a lens driving section which optically performs image blur correction by driving a lens is attached to the camera body, the system controller changes the image blur correction mode of the image processor according to an image blur correction mode of the lens device.