Camera Accessory Terminal Positioning for Stable Lens Communication
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Solution Overview
Problem
Existing camera systems lack a stable configuration for terminal pin contact between the camera and interchangeable lens assemblies, leading to unstable communication and potential mechanical issues during lens mounting and operation.
Innovation Solution
The camera system incorporates a design with a first mount portion featuring a plurality of first bayonet claw portions and terminals, and a second mount portion with corresponding bayonet claw portions and terminals, where the second terminals are positioned to ensure stable contact and communication by aligning with a predetermined bayonet claw portion when viewed along the central axis, facilitating secure engagement and reduced abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal surface is positioned within the angle range of a bayonet claw portion for stable type determination, then the lens assembly type identification is improved, but the communication terminal contact stability deteriorates
Solution Approach 1:
The patent divides the terminal contact function into two separate groups: type determination terminals positioned within the bayonet claw angle range, and communication terminals positioned outside this range. This segmentation allows each group to fulfill its specific function optimally without interfering with the other, resolving the contradiction between type identification accuracy and communication stability.
Solution Approach 2:
Different regions of the terminal surface are assigned different functional qualities: the region within the bayonet claw angle range is optimized for type determination contacts, while the region outside this range is optimized for communication contacts. This local differentiation ensures that each contact group operates in its most favorable position.
2Adaptability or versatility
If multiple terminals are positioned at different locations for comprehensive functionality, then the device versatility is improved, but the contact stability and alignment precision deteriorate
Solution Approach 1:
The terminal surface is segmented into distinct functional zones based on angular position relative to the bayonet claw portions. This segmentation allows multiple terminals to be distributed across different zones, each zone optimized for specific contact groups, thereby maintaining alignment precision while achieving functional versatility.
Solution Approach 2:
The patent introduces an angular dimension for terminal positioning, arranging terminals not just radially but also at specific angular offsets from the bayonet claw portions. This multi-dimensional arrangement allows comprehensive functionality while maintaining precise alignment through geometric relationships.
Data Source
AI summary
An accessory configured to be detachably mountable to an image pickup apparatus including a first mount portion including first bayonet claw portions and first terminals, the accessory including a second mount portion including second bayonet claw portions configured to enable engagement with the first bayonet claw portions, and second terminals configured to enable contact with the first terminals, in which the second terminals are provided at positions that are different from positions of the second bayonet claw portions, and wherein half lines that extends from a central axis of the second mount portion and passes through second terminals that are used in communication between the image pickup apparatus and the accessory, all pass through a predetermined second bayonet claw portion.