Camera Rotary Dial Contact Detection for Erroneous Setting Prevention
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Solution Overview
Problem
Existing camera designs with rotary operation dials face issues of unintentional setting changes due to accidental rotation, leading to complications in mechanism complexity and reduced operability when mechanical lock mechanisms are used, and separate prohibition mechanisms can decrease user experience.
Innovation Solution
A camera with a rotary operation dial featuring contact detection units on its surface, allowing setting changes only when valid contact is detected, enabling multiple settings with a single dial through validation and display of valid and invalid settings differently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical lock mechanism is added to the operation dial to prevent unintentional rotation, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent replaces the mechanical lock mechanism with an electronic control system. A determination unit detects whether the operation dial is being operated, and a setting change unit controls whether setting changes are applied based on this detection. This substitutes mechanical locking components with electronic sensing and control, reducing mechanical complexity while maintaining reliability.
Solution Approach 2:
The patent introduces an intermediary control system between the operation dial and the setting change mechanism. The determination unit acts as an intermediary that mediates between the physical rotation of the dial and the actual setting change, allowing the system to prevent unintentional changes without requiring direct mechanical locking of the dial itself.
2Reliability
If a separate prohibition mechanism is provided to prevent setting changes, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent merges the prohibition mechanism with the operation dial itself. The determination unit is integrated into the operation dial structure, detecting its own operational state. This eliminates the need for separate prohibition mechanisms and maintains smooth operability, as the dial's natural operation directly controls the validity of setting changes.
Solution Approach 2:
The operation dial serves its own dual function: it both detects operational intent and controls setting change validity. The determination unit within the dial monitors its own rotation state and automatically controls whether settings should change, making the system self-regulating without external prohibition mechanisms.
Data Source
AI summary
Provided are a camera capable of preventing an erroneous operation with a compact configuration and has high operability, a setting method of the camera, and a setting program of the camera. A top surface of an operation dial is divided into a plurality of regions. An item to be changed in the setting by the operation dial is set in each divided region. Contact with each divided region is detected, and the setting change of the item set in a region where the contact is detected is validated. In a case where the operation dial is rotationally operated, a setting of the item whose setting change is validated is changed in response to an operation.