Imaging Apparatus Dual Operation Parts Exposure Correction
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Solution Overview
Problem
Conventional exposure correction dials in digital cameras have a narrow pitch and a large number of positions, leading to operability issues and increased complexity in manufacturing, making it difficult to set exposure correction values within a wide range.
Innovation Solution
The use of two operation parts, an exposure correction dial and a lever, which allow users to select exposure correction values within a range of ±5 EV by combining numerical values and operations, improving the setting of photography conditions and reducing the number of required positions from 31 to 16 or 11, thereby increasing the pitch between clicks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single exposure correction dial is used to select exposure correction values within a wide range, then the device complexity is reduced, but the pitch between clicks becomes narrow and the number of positions increases, leading to operability issues
Solution Approach 1:
The exposure correction setting function is segmented into two independent operation parts: a first operation part (exposure correction dial) for selecting numerical values and a second operation part (lever or button) for selecting operations. This segmentation allows each part to have fewer positions and wider pitch while collectively achieving the full range of exposure correction values, thereby improving operability without significantly increasing device complexity.
2Adaptability or versatility
If the number of positions on the exposure correction dial is increased to cover a wide range, then the exposure correction capability is improved, but the pitch between clicks becomes narrower and manufacturing complexity increases
Solution Approach 1:
The dial is segmented into a first operation part with a reduced number of positions (16 or 11 positions instead of 31), which simplifies manufacturing. The second operation part provides additional selection capability through separate operations. This segmentation maintains the ability to cover a wide exposure correction range while reducing the pitch requirement and manufacturing complexity of the dial itself.
3Device complexity
If a single operation part is used for exposure correction, then the device structure is simplified, but the pitch between clicks becomes narrow making it difficult to set values
Solution Approach 1:
The operation is segmented into two distinct parts: a first operation part (dial) for numerical value selection and a second operation part (lever/button) for operation selection. This segmentation allows each part to have fewer positions with wider pitch, improving ease of operation while keeping the overall structure relatively simple and manageable.
Solution Approach 2:
The system transitions from a single-dimension operation (one dial controlling all exposure correction values) to a two-dimensional operation system where the first operation part selects numerical values and the second operation part selects operations. This dimensional change allows for wider pitch in each dimension while achieving the full range of exposure correction values.
Data Source
AI summary
An object of the present disclosure is to improve operability of an imaging apparatus. The present disclosure is an imaging apparatus including: first operation part 15 for receiving selection of a first numerical value from a first numerical value group that specifies a photography setting condition; second operation part 14 for receiving selection of an operation from an operation group for the first numerical value; and a controller for determining a set value set by combining the first numerical value selected via first operation part 15 and the operation selected via the second operation part 14.