Interchangeable Lens Combination Identification for Camera Systems
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Solution Overview
Problem
Existing camera systems fail to correctly identify the combination of an interchangeable lens and an accessory, leading to difficulties in generating or acquiring optimized lens data, as they do not consider individual differences between the lens and the accessory.
Innovation Solution
An interchangeable lens with a lens-side communication unit, an accessory information acquisition unit, and an identification information generation unit that generates unique combination identification information based on individual identification information of both the lens and the accessory, allowing correct identification and optimal lens data acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If mounting achievement is determined using only the identification information of the interchangeable lens, then the determination process is simple, but the lens data cannot be optimized for the combination of the interchangeable lens and the accessory
Solution Approach 1:
The patent merges the identification information of the interchangeable lens and the accessory into a single combination identification information. The lens-side communication unit transmits both the lens identification information and accessory identification information to the camera body, which then determines mounting achievement based on this combined information, ensuring accurate identification of the lens-accessory combination while maintaining a unified identification process.
Solution Approach 2:
The camera body acts as an intermediary that receives identification information from both the interchangeable lens and the accessory, processes this information to generate combination identification information, and uses this to determine mounting achievement. This intermediary role allows the system to accurately identify the combination without requiring the lens itself to become more complex.
2Loss of time
If lens data is stored in the camera body for the first time mounting, then activation time is shortened for subsequent mountings, but the lens data cannot be optimized for the combination with accessory
Solution Approach 1:
The system uses feedback from the accessory identification information to determine whether to download new lens data or use stored data. When an accessory is detected, the camera body receives accessory identification information, determines that this is a new combination, and downloads optimized lens data for this specific combination, ensuring that the stored data always matches the current lens-accessory configuration.
Solution Approach 2:
The system changes the identification parameters from just lens identification to combination identification that includes both lens and accessory information. This parameter change allows the system to distinguish between different lens-accessory combinations and download appropriate optimized lens data for each specific combination, improving both accuracy and data optimization.
3Device complexity
If only the type (model) of interchangeable lens is discriminated, then the classification is simple, but individual differences cannot be identified and optimal lens data cannot be obtained
Solution Approach 1:
The identification system is segmented into multiple components: lens identification information from the interchangeable lens and accessory identification information from the mounted accessory. This segmentation allows the system to capture individual differences of both components while maintaining a structured identification process that can be processed by the camera body.
Solution Approach 2:
The camera body's identification system is designed to be universal, handling both lens identification and accessory identification through the same communication interface. The lens-side communication unit transmits both types of information using a unified protocol, allowing the system to identify individual differences across different lens and accessory models without requiring separate identification systems.
Data Source
AI summary
A lens system according to a first aspect of the present invention includes an interchangeable lens, and an accessory which is mounted between the interchangeable lens and a camera body. The interchangeable lens is mountable to the camera body via the accessory and includes a lens-side communication unit that communicates with the camera body and the accessory, an accessory information acquisition unit that communicates with the accessory to acquire individual identification information of the accessory, an interchangeable lens information storage unit that stores individual identification information of the interchangeable lens, and an identification information generation unit that generates combination identification information which is information unique to a combination of the interchangeable lens and the accessory on the basis of the acquired individual identification information of the accessory and the stored individual identification information of the interchangeable lens, and the lens-side communication unit transmits the generated combination identification information to the camera body.