Interchangeable Lens Terminal Layout for Reliable Camera Links
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Solution Overview
Problem
Existing camera accessories face challenges in being properly attached to a camera body for effective data and power transmission.
Innovation Solution
The accessory is designed with specific terminal configurations that align and contact with corresponding camera-side terminals to ensure proper electrical connections, including the positioning of terminals like the eighth terminal between the seventh and ninth terminals for data and clock signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals are arranged in a conventional sequence without specific positioning, then the accessory structure is simpler, but proper electrical connection and signal transmission reliability deteriorate
Solution Approach 1:
The patent applies local quality by positioning specific terminals (eighth terminal between seventh and ninth, tenth terminal between ninth and eleventh) with precise spatial relationships. This localized arrangement optimization ensures proper electrical connections for clock and data signals without requiring complex overall structural changes, thereby improving connection reliability while maintaining reasonable device complexity.
2Productivity
If terminal positioning is optimized for signal transmission, then data and clock signal transmission efficiency improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the terminal arrangement into distinct positioned terminals (seventh, eighth, ninth, tenth, eleventh terminals) with specific relationships. This segmentation allows each terminal to be optimized for its specific signal function (clock or data) while using standardized positioning patterns that reduce the overall manufacturing precision burden compared to a fully customized arrangement.
Solution Approach 2:
The patent employs asymmetric positioning where the eighth terminal is positioned between the seventh and ninth terminals, and the tenth terminal is positioned between the ninth and eleventh terminals. This asymmetric arrangement optimizes signal transmission paths for clock and data signals while using practical dimensional tolerances that balance performance requirements with manufacturability.
Data Source
AI summary
An interchangeable lens that is removably attachable to a camera body includes: a first clock receiver that receives a first clock signal from the camera body; a second clock transmitter that transmits a second clock signal to the camera body; a lens that is driven by a driving force from a first drive member; a receiver that receives an instruction signal from the camera body in synchronization with the first clock signal; and a first transmitter that repeatedly transmits positional information on the lens to the camera body in synchronization with the second clock signal.