Arc-Shaped Flange Back Adjustment Member for Camera Mount
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Solution Overview
Problem
Existing interchangeable-lens image pickup apparatuses face challenges in easily adjusting the flange back distance and tilt due to complex and cumbersome processes, particularly with the use of ring-shaped flange back adjustment shims that only allow for distance adjustments, making fine adjustments like tilt adjustments impossible.
Innovation Solution
The design incorporates a main body with a casing cover, a connector, and fixing portions that allow for the attachment and detachment of interchangeable lens mount apparatuses, using arc-shaped flange back adjustment members with thickness adjustment portions and cut portions for easy interchange and fine adjustment of the flange back, enabling both distance and tilt adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ring-shaped flange back adjustment shims are used inside the main body, then flange back distance adjustment is achieved, but the adjustment process becomes complex and user access is difficult
Solution Approach 1:
The adjustment system is segmented into modular components: the main body with fixing portions, the mount apparatus, and removable flange back adjustment members. This segmentation allows users to access and adjust the flange back by simply removing the mount apparatus, without needing to disassemble the entire camera body or access internal components.
Solution Approach 2:
The flange back adjustment members are extracted from the internal structure and positioned between the mount apparatus and the main body. This extraction makes the adjustment components externally accessible, allowing users to interchange adjustment members by simply detaching the mount apparatus, thereby simplifying the adjustment process significantly.
2Measurement precision
If ring-shaped flange back adjustment shims are used, then distance adjustment is possible, but fine adjustments like tilt adjustments become impossible
Solution Approach 1:
The flange back adjustment members feature locally differentiated structures with thickness adjustment portions at specific locations. By varying the thickness at different positions and providing cut portions, the system enables both distance adjustment (through overall thickness variation) and tilt adjustment (through asymmetric thickness distribution), allowing different adjustment types using the same component framework.
Solution Approach 2:
The system transitions from static ring-shaped shims to dynamic, configurable adjustment members with varying thickness profiles. Users can select and interchange adjustment members with different thickness distributions to achieve different adjustment needs (distance or tilt), making the system adaptable to various adjustment scenarios.
3Reliability
If multiple screws are required for mount apparatus attachment, then fixing reliability is improved, but the interchange process becomes cumbersome
Solution Approach 1:
The fixing system is segmented into multiple fixing portions distributed around the mount apparatus. This segmentation allows the use of multiple screws for reliable fixing while maintaining a standardized attachment interface. Users can quickly attach or detach the mount apparatus by removing these screws, and the modular structure enables rapid interchange compared to traditional single-piece mounting systems.
Data Source
AI summary
A main body of an image pickup apparatus which enables a user to easily interchange mount apparatuses, and at this time, adjust and finely adjust the flange back. At least one flange back adjustment member is removably held between the mount apparatus and an image pickup device holding member of the main body. In a state in which the mount apparatus is attached to the main body with at least one flange back adjustment member, on a projection surface in a case of viewing the main body from the front side in a direction of an optical axis, fixing portions that fix the mount apparatus to the main body, the at least one flange back adjustment member, and a connector of the main body or the mount apparatus are overlapped with an outside shape of the mount apparatus.