Strobe Device Irradiation Direction Control via Switch Priority Segmentation
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Solution Overview
Problem
The existing automatic bounce drive control techniques for camera strobe devices inhibit all switch operations during execution, leading to degraded user-friendliness as users cannot interrupt or modify the process without waiting for its completion, causing issues with vibrations and ranging accuracy.
Innovation Solution
An image pickup apparatus and system that allows preferential execution of automatic bounce drive control even when unrelated switches are operated, and prioritizes control associated with related switches, enabling users to interrupt or modify the process without waiting for completion, thus preventing user-friendliness degradation and reducing vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If all switch operations are inhibited during automatic bounce drive control execution, then ranging accuracy is maintained, but user-friendliness deteriorates as users cannot interrupt or modify the process
Solution Approach 1:
The patent segments switch operations into two categories: related switches (affecting bounce drive control) and unrelated switches (not affecting it). This segmentation allows differential handling - unrelated switches are inhibited during automatic bounce drive control to maintain ranging accuracy, while related switches remain responsive to allow user interruption and modification of the process, thus resolving the contradiction between measurement precision and ease of operation.
2Measurement precision
If unrelated switch operations are inhibited during automatic bounce drive control, then ranging accuracy is maintained, but operational flexibility deteriorates
Solution Approach 1:
The patent applies segmentation by classifying switches into related and unrelated categories. Unrelated switches are inhibited during automatic bounce drive control execution to prevent vibrations that would reduce ranging accuracy. Related switches are excluded from inhibition, allowing users to interrupt or modify the process when needed. This selective inhibition strategy maintains both ranging accuracy and operational flexibility.
3Ease of operation
If switch operations are allowed during automatic bounce drive control, then user-friendliness is maintained, but ranging accuracy deteriorates due to vibrations
Solution Approach 1:
The patent segments switch operations into related and unrelated categories to resolve the contradiction. Unrelated switches are inhibited during automatic bounce drive control to prevent vibrations that would compromise ranging accuracy. Related switches are permitted to operate, allowing user-friendliness to be maintained while protecting measurement precision through selective inhibition rather than complete inhibition or complete allowance.
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
This solution allows for seamless interruption and modification of automatic bounce drive control without waiting for its completion, enhancing user-friendliness and maintaining ranging accuracy by prioritizing relevant switch controls during the process.
Implementation Method 1
preliminary light emission using the strobe device, laser irradiation, or the like is performed to measure reflected light from an object, and reflected light from a ceiling, by a light receiving sensor of the strobe device
Data Source
AI summary
An image pickup apparatus capable of preventing degradation of user-friendliness during execution of automatic bounce drive control. A strobe device can change an irradiation direction of light from a strobe head. The automatic bounce drive control determines an irradiation direction of the light based on a result of ranging of a target object, and drives the strobe head in the determined irradiation direction. When a switch unrelated to the automatic bounce drive control is operated during execution of the control, out of control related to an operation of the switch and the automatic bounce drive control, the automatic bounce drive control is preferentially executed, whereas when a switch related to the automatic bounce drive control is operated during execution of the control, out of the control related to an operation of the switch and the automatic bounce drive control, control related to the operation of the switch is preferentially executed.