Flash Control Unit Auto-Bounce Direction Adjustment
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Solution Overview
Problem
Existing bounce flash photography techniques fail to prevent images from being captured with only a portion of the object irradiated due to inappropriate flash light emission directions when the release switch is activated during automatic irradiation direction adjustment.
Innovation Solution
An imaging apparatus with a control unit that inhibits flash photography if the operation unit receives a start instruction while the movable light emitting unit is being driven to change its direction, ensuring proper irradiation only after the auto bounce operation is completed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the release switch is turned on to start photography while the flash light emitting unit is being driven based on calculated angle data, then the photography operation can be initiated quickly, but bounce flash photography is performed at an inappropriate angle causing the image to be unsuccessfully captured
Solution Approach 1:
The control unit checks whether the flash light emitting unit has completed its angle adjustment before allowing the flash to fire. This preliminary verification ensures that the light emitting unit is positioned at the correct angle calculated from the ceiling distance and object distance, preventing unsuccessful captures while still enabling quick photography initiation once positioning is complete
2Measurement precision
If the flash light emitting unit automatically adjusts its angle based on distance calculations, then the optimum irradiation direction is determined, but the system cannot respond immediately when the release switch is activated during adjustment
Solution Approach 1:
The control unit continuously monitors the position of the flash light emitting unit during automatic angle adjustment. When the release switch is activated, the control unit checks the current position against the target position calculated from distance measurements. Only when the light emitting unit reaches the correct angle does the system permit flash firing, providing real-time feedback that balances positioning accuracy with responsive operation
Data Source
AI summary
An imaging apparatus includes an operation unit and a control unit to perform photographing using an illumination apparatus capable of automatically driving a movable unit, including a light emitting unit, for changing an irradiation direction of the light emitting unit. The operation unit receives an instruction to start a photographing operation. The control unit performs control, in a case where the operation unit receives an instruction to start a photographing operation while the movable unit is being automatically driven to change the irradiation direction of the light emitting unit, not to perform flash photography in which the light emitting unit is caused to emit light.