Flash Auto-Bounce Display Suppression for Accurate Photometry
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Solution Overview
Problem
Conventional imaging apparatuses face challenges in accurately displaying photometry results during auto-bounce operations of flash units, leading to unnatural variations in displayed information due to pre-flashing and changes in radiation direction, which can confuse users and disrupt the imaging process.
Innovation Solution
The imaging apparatus incorporates a display control unit that suppresses the display of photometry results during the first auto-bounce operation of the flash unit, ensuring stable and accurate information presentation by setting specific flags to control the display of exposure control values and auto-bounce information on the information display unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flash unit performs multiple emissions while automatically changing radiation direction during auto-bounce operation, then the imaging capability is improved, but the displayed photometry result becomes unnatural and confusing
Solution Approach 1:
The system performs preliminary actions (pre-flashing and direction changes) before the actual imaging, which causes the photometry result to become unnatural. The patent applies this principle by anticipating the display issue and preventing it through conditional logic that detects the auto-bounce operation state and suppresses the problematic display update.
Solution Approach 2:
Instead of displaying the photometry result during auto-bounce operation (which causes confusion), the patent inverts the approach by deliberately suppressing the display. This inversion resolves the contradiction by prioritizing user understanding over information completeness during this specific operation mode.
2Loss of information
If photometry results are displayed during flash unit operation, then information availability is improved, but display stability deteriorates due to multiple emissions and direction changes
Solution Approach 1:
The patent applies dynamics by making the display behavior adaptive rather than static. The display control unit dynamically adjusts whether to show photometry results based on the detected operation mode (auto-bounce vs. normal operation), allowing the system to optimize between information availability and stability for each specific scenario.
3Ease of operation
If the display control unit shows photometry results during auto-bounce operation, then user information access is improved, but user confusion increases due to unnatural variations
Solution Approach 1:
The patent treats the photometry result display during auto-bounce operation as a temporary, disposable information element that should be suppressed rather than persisted. By discarding the display update during this specific operation mode, the system prevents reliable information from being contaminated by unnatural variations caused by pre-flashing and direction changes.
Data Source
AI summary
An imaging apparatus is capable of imaging with the use of an illumination apparatus including a flash unit capable of changing a radiation direction, and includes: a photometry unit; a display unit that displays information about a result of photometry using the photometry unit; and a display control unit that executes a control related to display on the display unit, wherein when the illumination apparatus is performing a first operation of multiple emissions by the flash unit while changing automatically the radiation direction of the flash unit to a plurality of different directions, the display control unit performs a control so as not to display the information about the photometry result on the display unit.