Camera Exposure Mode Selection for Sensitivity Priority AE
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Solution Overview
Problem
Existing photographing apparatuses require complex operations to set the sensitivity of the imaging sensor, making it difficult to calculate corresponding shutter speed and aperture values.
Innovation Solution
A photographing apparatus with an exposure-mode-selecting device and controller that allows users to set the sensitivity of the imaging sensor quickly and easily, calculating shutter speed and aperture values based on luminance values for a sensitivity priority AE mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple operation keys are used to set sensitivity, then sensitivity can be set, but the operation becomes unnecessarily complicated
Solution Approach 1:
The patent combines the sensitivity setting function with the existing exposure mode selection device. By integrating these functions, the system allows sensitivity to be set through the same operational interface used for selecting exposure modes, thereby reducing the number of separate operation keys needed and simplifying the overall operation process.
Solution Approach 2:
The exposure mode selecting device is designed to serve multiple functions: it not only selects different exposure modes but also controls the sensitivity setting. This multi-functionality eliminates the need for dedicated separate keys for sensitivity adjustment, thereby reducing operational complexity while maintaining full control capabilities.
2Ease of operation
If sensitivity is set quickly and easily, then user operation is simplified, but precise control over exposure parameters may be compromised
Solution Approach 1:
The system incorporates a controller that automatically calculates the appropriate shutter speed and aperture value based on the selected sensitivity and the luminance value of the photographing subject. This feedback mechanism ensures that even though sensitivity can be set quickly and easily, the resulting exposure parameters remain precisely controlled and optimized for the given lighting conditions.
Solution Approach 2:
The controller automatically performs the calculation and adjustment of shutter speed and aperture value based on the user's sensitivity selection and the measured luminance. This self-service capability allows the system to maintain precise exposure control without requiring the user to manually adjust multiple parameters, thus preserving precision while simplifying operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a simplified operation for setting the sensitivity of the imaging sensor, allowing for proper exposure calculations and improved user experience by reducing the complexity of setting exposure parameters.
Implementation Method 1
a controller (30), and an exposure-mode-selecting device (11). The controller (30) performs a photometric operation on a photographing subject and obtains a luminance value of the photographing subject based on the photometric operation
Data Source
AI summary
A photographing apparatus comprises an imaging sensor, a controller, and an exposure-mode-selecting device. The controller performs a photometric operation on a photographing subject and obtains a luminance value of the photographing subject based on the photometric operation. The exposure-mode-selecting device is used for selecting an exposure mode of the photographing apparatus that has a sensitivity priority AE mode. The photographing operation is performed with a sensitivity of the imaging sensor that is set by a user and a shutter speed and an aperture value that are calculated based on the luminance value and the sensitivity, while the photographing apparatus is in the sensitivity priority AE mode.