Interchangeable Lens Format Selection for Camera Body Compatibility
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Solution Overview
Problem
The compatibility of interchangeable lenses and camera bodies, particularly when dealing with older models, is challenged by the need to change the data representation format of optical characteristics information.
Innovation Solution
A camera body system that can detachably mount interchangeable lenses with multiple sets of optical characteristics data in various representation formats, including a selection unit to match the formats between the lens and body, allowing for the request and reception of optical characteristics data, and an image processing unit for correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the data representation format of optical characteristics information is changed to improve compatibility with newer camera bodies, then the adaptability of the lens to new systems is improved, but the compatibility with older camera bodies deteriorates
Solution Approach 1:
The optical characteristics information is segmented into multiple representation formats (first format and second format) within the lens. The lens contains both formats simultaneously, allowing the camera body to select the appropriate format based on its capabilities, thus resolving the contradiction between new and old system compatibility
Solution Approach 2:
The patent changes the parameter of data representation format by providing multiple formats (different encoding schemes) of the same optical characteristics information. The camera body detects which format is stored and converts or interprets it accordingly, enabling both older and newer camera bodies to work with the same lens
2Adaptability or versatility
If multiple sets of optical characteristics data in various representation formats are stored in the lens, then the adaptability across different camera bodies is improved, but the device complexity increases
Solution Approach 1:
The lens is pre-configured with multiple representation formats of optical characteristics information before being mounted on the camera body. This preliminary preparation eliminates the need for real-time format conversion or negotiation, simplifying the interaction between lens and camera body while maintaining high adaptability
Solution Approach 2:
The patent creates multiple copies of the optical characteristics information in different representation formats within the lens memory. Rather than implementing complex conversion algorithms, the system simply stores redundant copies in various formats, allowing the camera body to read the appropriate format directly, thus reducing computational complexity
Data Source
AI summary
A camera body at which an interchangeable lens, holding a plurality of sets of optical characteristics data, each expressing specific optical characteristics in one of a plurality of representation formats, can be detachably mounted, includes: an identification information reception unit that receives lens-side identification information from the interchangeable lens, which indicates the plurality of representation formats; an identification information storage unit in which body-side identification information indicating each representation format that the camera body is capable of recognizing among the plurality of representation formats, is stored; a selection unit that selects a single representation format included in both the lens-side and the body-side identification information, among the plurality of representation formats; a request unit that issues a request to the interchangeable lens for the optical characteristics data corresponding to the selected representation format; and an optical characteristics reception unit that receives the requested optical characteristics data from the interchangeable lens.