Interchangeable Lens Mount Color Coding for Back Focal Length Compatibility
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Solution Overview
Problem
Existing lens interchangeable camera systems face challenges with inadequate lenses having unsuitable back focal lengths, leading to increased complexity and costs in preventing misplacement, as existing solutions require changing the shape of the mount unit.
Innovation Solution
The implementation of colored areas on the periphery of the mount units for both the imaging apparatus and interchangeable lenses, ensuring compatibility by matching colors, allows for easy identification and prevention of misplacement of inadequate lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shape of the mount unit is changed to prevent misplacement of inadequate lenses, then the reliability of lens compatibility is improved, but the device complexity and manufacturing cost increase due to component diversification
Solution Approach 1:
The patent applies color coding to the periphery of the mount unit and corresponding lens components. Different colors indicate different back focal length specifications, allowing users to quickly identify compatible lenses through visual matching. This color-based identification system prevents misplacement of inadequate lenses while maintaining a uniform mount unit shape, thereby resolving the contradiction between reliability improvement and device complexity increase.
2Reliability
If the shape of the mount unit is changed to prevent misplacement of inadequate lenses, then the reliability of lens compatibility is improved, but the manufacturing cost increases due to use of common components becoming difficult
Solution Approach 1:
Instead of creating multiple mount unit shapes with different back focal lengths, the patent uses color markings on the periphery of a standardized mount unit design. This approach allows the same physical mount unit to serve multiple lens types while providing visual guidance for compatibility. The color coding can be applied through simple manufacturing processes such as printing or coating, avoiding the need for complex multi-shaped components and reducing manufacturing costs while maintaining reliability.
3Ease of operation
If visual identification methods are used to prevent misplacement of lenses, then the ease of operation is improved, but additional components or markings are required on the mount unit
Solution Approach 1:
The patent implements visual identification through color markings applied to the periphery of the mount unit and corresponding lens components. This color-coding system provides intuitive visual guidance for users to identify compatible lenses, significantly improving ease of operation. The color markings are integrated into the existing mount unit structure without requiring additional mechanical components, thereby achieving visual identification while minimizing increases in device complexity.
Data Source
AI summary
There is provided an imaging apparatus on which an interchangeable lens is detachably mounted, which includes a mount unit to which the interchangeable lens is attached. In the imaging apparatus, the mount unit is provided with, on its periphery, a colored area having a specific color along an outer edge of said mount unit, and with respect to a specific interchangeable lens, which meets a predetermined requirement on adaptability to said imaging apparatus, among interchangeable lenses, a mount unit, which is connected to the mount unit of the imaging apparatus, of the specific interchangeable lens is provided with, on its periphery, a colored area having the same color as the specific color along an outer edge of the mount unit of the specific interchangeable lens.