Camera Body Protrusions for Lens Mount Protection and Stability
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Solution Overview
Problem
Interchangeable lens imaging apparatuses, especially mirrorless cameras, face challenges with lens mount design, where the short distance between the lens mount and the image sensor increases the risk of damage to the mount surface when the camera is placed with the mount surface down, and the center of gravity shifts forward with large lenses, potentially causing the camera to fall.
Innovation Solution
The imaging apparatus includes an apparatus main body with a lens mount and two protruding portions that extend further forward than the mount surface, with equal amounts of protrusion along the optical axis, to enhance stability and protect the mount surface when the camera is placed on its side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lens mount protrudes further than the camera body, then the lens device can be attached and detached, but the mount surface may be damaged when the camera is placed with the mount surface down
Solution Approach 1:
The camera body is segmented into multiple protruding portions that extend forward of the mount surface. These protruding portions create stable contact points with the support surface when the camera is placed on its side, preventing the mount surface from contacting and damaging the support surface.
Solution Approach 2:
The protruding portions act as intermediary elements between the camera body and the support surface. Instead of the mount surface directly contacting the support surface (causing damage), the protruding portions serve as mediators that provide stable contact and prevent damage to the mount surface.
2Reliability
If a large lens device is attached to the camera body, then imaging capability is improved, but the center of gravity shifts forward causing the camera to fall over
Solution Approach 1:
The protruding portions extend forward of the mount surface to create a counterbalancing structure. When the camera is placed on its side, these protruding portions contact the support surface first, creating a stable base that counteracts the forward shift in center of gravity caused by large lens devices, preventing the camera from falling forward.
3Volume of moving object
If the distance from lens mount to image sensor is shortened, then the camera structure is compact, but the risk of mount surface damage increases
Solution Approach 1:
Instead of addressing the damage risk in the vertical dimension (mount surface protection), the solution extends protection in the horizontal dimension by creating protruding portions that extend forward of the mount surface. This dimensional approach allows the compact camera structure to be maintained while preventing mount surface damage through a different spatial mechanism.
Data Source
AI summary
An imaging apparatus includes an apparatus main body including a lens mount to which a lens device is detachably attachable, and at least two protruding portions protruding further to a front side in a direction of an optical axis than a mount surface on which the lens mount is provided. Amounts of protrusion in the direction of the optical axis of the at least two protruding portions are approximately the same.