Camera Mount Adapter Switch Detection for Lens Correction
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Solution Overview
Problem
When using a mount adapter with a non-reflex camera, there are issues with lens communication mismatches leading to inadequate lens control and image correction, particularly when multiple lenses are interchanged, and existing systems do not effectively address image correction according to the mounted lens characteristics.
Innovation Solution
A camera body with a switch setting state detection device, correction parameter memory, and image correction device that reads and applies correction parameters based on the setting state of a switch on the mount adapter, enabling easy image correction even with lenses that cannot communicate directly with the camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mount adapter is used to mount another mount lens on a non-reflex camera, then lens compatibility is improved, but communication mismatch between camera and lens occurs leading to inadequate lens control and image correction
Solution Approach 1:
The patent introduces a conversion path as an intermediary component between the camera and lens. This conversion path includes a communication conversion unit that converts communication signals between different protocols, enabling reliable communication between the camera body and lenses with different mount standards. The conversion path acts as a mediator that resolves the communication mismatch issue while maintaining lens compatibility.
2Adaptability or versatility
If manual input of lens information is required for lens control and image correction, then lens compatibility is maintained, but operational complexity increases especially when using multiple lenses interchangeably
Solution Approach 1:
The patent implements automatic lens information acquisition through the communication conversion unit. When a lens is mounted, the system automatically detects and converts the lens communication signals to retrieve lens information without requiring manual input. This self-service mechanism eliminates the need for users to manually enter lens parameters, thereby maintaining lens interchangeability while significantly improving ease of operation.
3Device complexity
If existing adapter systems are used without dedicated image correction functionality, then device complexity is reduced, but captured image correction according to lens characteristics cannot be performed
Solution Approach 1:
The patent merges the image correction functionality with the mount adapter by integrating a correction parameter storage unit and correction execution unit into the adapter structure. The correction parameter storage unit stores correction parameters for different lens types, and the correction execution unit automatically applies the appropriate correction parameters based on the mounted lens. This merging approach enables accurate image correction according to lens characteristics while maintaining relatively simple device complexity.
Data Source
AI summary
An image captured using a lens mounted via a mount adapter is corrected in simple fashion in accordance with the lens. An interchangeable lens is mounted on a camera body via the mount adapter. The mount adapter is provided with a slide switch capable of setting a lens type that corresponds to the interchangeable lens. The slide switch is positioned in accordance with the interchangeable lens. The switch setting state of the positioned slide switch is detected in the camera body. Correction parameters that conform to the detected switch setting state are read out of a memory within the camera body. The captured image is corrected using the correction parameters that have been read out.