Interchangeable Lens Communication for Camera Body Identification
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Solution Overview
Problem
Existing imaging apparatuses face compatibility issues when implementing new functions due to the interchangeable lens apparatus failing to identify the imaging apparatus body through conventional communication protocols, preventing the implementation of new functions.
Innovation Solution
A lens apparatus with a controller that transmits identifying information to the image pickup apparatus body, allowing for the exchange of information to support new functions and maintain compatibility with conventional apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication is implemented using conventional rules to maintain compatibility, then compatibility with conventional apparatus is maintained, but the lens apparatus cannot identify the imaging apparatus body and new functions cannot be implemented
Solution Approach 1:
The lens apparatus transmits identification information to the imaging apparatus body in advance during an initial communication phase before actual image capture operations. This preliminary transmission of information allows the imaging apparatus body to identify the lens apparatus and enable new functions while maintaining compatibility through conventional communication rules.
2Adaptability or versatility
If the lens apparatus transmits identification information to enable new functions, then new functions can be implemented, but communication complexity increases beyond conventional rules
Solution Approach 1:
The communication process is divided into distinct phases: an initial communication phase for transmitting identification information, and subsequent communication phases for normal operations. This segmentation allows new functions to be implemented through structured information exchange while maintaining compatibility with conventional communication protocols for standard operations.
3Adaptability or versatility
If the imaging apparatus body drives all optical members simultaneously, then full functionality is achieved, but power consumption increases and compatibility with conventional apparatus is compromised
Solution Approach 1:
The imaging apparatus body selectively drives only the necessary optical members based on the lens apparatus type and current operational requirements, rather than driving all optical members simultaneously. This partial action approach achieves full functionality when needed while reducing power consumption during normal operations, and maintains compatibility by allowing conventional apparatus to operate with their limited capabilities.
Data Source
AI summary
A lens apparatus detachably attached to an image pickup apparatus body includes a controller configured to perform communication with the image pickup apparatus body with respect to driving of an optical member, wherein the controller is configured to transmit, based on first information for identifying the image pickup apparatus body transmitted from the image pickup apparatus body, second information for identifying the lens apparatus to the image pickup apparatus body, and transmit, based on third information for identifying the image pickup apparatus body transmitted from the image pickup apparatus body after transmission of the second information, fourth information for identifying the lens apparatus to the image pickup apparatus body.