Camera Accessory Terminal Arrangement for Noise Reduction
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Solution Overview
Problem
Existing camera accessories face challenges in reliable attachment and communication with camera bodies, particularly in ensuring stable electrical connections and minimizing noise and wear during attachment and removal processes.
Innovation Solution
The accessory design includes specific terminal arrangements on both the camera body and interchangeable lens, with carefully positioned terminals for power, clock signals, and ground connections to ensure stable communication and minimize noise, and strategic positioning to reduce wear on contact points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If terminals are arranged close together for compact design, then device size is reduced, but noise interference between terminals increases
Solution Approach 1:
The patent transitions from a two-dimensional terminal arrangement to a three-dimensional configuration by strategically positioning terminals at different locations and orientations on the accessory body. This spatial distribution in multiple dimensions reduces electromagnetic interference while maintaining a compact overall form factor, as terminals are separated in space rather than merely arranged closely in a plane.
Solution Approach 2:
Different terminal regions are designed with distinct characteristics - signal terminals are positioned away from power terminals, and grounding terminals are strategically placed to provide local shielding. This local differentiation of terminal functions and positions minimizes noise interference between different signal types while maintaining compact dimensions.
2Ease of operation
If attachment process is simplified for ease of use, then operation speed is improved, but wear on contact points increases
Solution Approach 1:
The accessory and camera body are designed with pre-aligned terminal positions and contact geometries that guide the attachment process. The terminal contact surfaces are shaped and positioned to naturally engage in the correct orientation, reducing the need for precise manual alignment and minimizing sliding friction that causes wear during attachment.
Solution Approach 2:
The patent reduces mechanical wear by minimizing direct sliding contact between terminal surfaces during attachment. Instead of relying solely on mechanical friction-based engagement, the design uses electromagnetic field establishment through precise terminal alignment to confirm connection, reducing the mechanical stress and wear on contact points.
Data Source
AI summary
An accessory that can be attached to a camera body, the camera body including a first camera-side clock terminal that outputs a first clock signal, a second camera-side clock terminal to which a second clock signal is input, and a first camera-side power supply terminal that outputs first power, the accessory includes: an eighth terminal that is brought into contact with the first camera-side clock terminal; a tenth terminal that is brought into contact with the second camera-side clock terminal; and a second terminal that is brought into contact with the first camera-side power supply terminal, wherein: a distance between the tenth terminal and the second terminal is longer than a distance between the eighth terminal and the second terminal.