Interchangeable Lens Control for Detached Power and Operation
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Solution Overview
Problem
Interchangeable lenses lack power supply when not attached to a camera, preventing them from being driven or controlled.
Innovation Solution
A control apparatus and method that enables the interchangeable lens to determine its attachment state and switch control methods based on power and communication availability, allowing independent operation and control even when detached from the camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the interchangeable lens is designed to have no power supply when detached from the camera, then the device complexity is reduced, but the ability to drive and control units in the interchangeable lens when detached is lost
Solution Approach 1:
The interchangeable lens is equipped with its own power supply unit and control apparatus, enabling it to independently drive and control its units (such as focus and stabilization mechanisms) without relying on the camera's power supply. This self-service capability allows the lens to operate autonomously when detached from the camera, resolving the contradiction between simplified design and independent operation capability
2Adaptability or versatility
If communication means are added to enable the interchangeable lens to operate independently, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The control apparatus is designed to perform multiple functions: it controls the interchangeable lens's units both when attached to the camera (using information from the camera) and when detached (using information from the lens itself). This multi-functionality allows the same control system to adapt to different operating conditions without requiring separate dedicated systems, thereby improving adaptability while managing device complexity
Data Source
AI summary
A control apparatus is configured to control an interchangeable lens attachable to, detachable from, and communicable with an image pickup apparatus, and includes a unit. The control apparatus includes a memory storing instructions, and a processor that executes the instructions to determine whether the interchangeable lens is attached to the image pickup apparatus, control the unit using at least one of information from the image pickup apparatus and information from the interchangeable lens in a case where the interchangeable lens is attached to the image pickup apparatus, and control the unit using information from the interchangeable lens in a case where the interchangeable lens is not attached to the image pickup apparatus.