Communication Device for Flash Light Emission Control
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Solution Overview
Problem
Interference in communication between a master and slave flash during simultaneous release control and information communication can disrupt light emission control, leading to failures in slave light emission.
Innovation Solution
A communication device with a determining unit to assess the readiness of a lighting device and a control unit that prevents information transmission from the lighting device when it is ready for lighting, ensuring bidirectional communication without interfering with light emission control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If bidirectional communication is implemented in the flash, then slave information can be acquired and users can recognize charge completion through display devices, but communication interference occurs when release control communication and slave information communication happen simultaneously, disrupting light emission control
Solution Approach 1:
The master flash determines in advance whether the slave flash is ready for lighting before allowing information communication. This preliminary check prevents communication interference by ensuring the slave is not in a state where it needs to transmit charge completion information, thus resolving the contradiction between enabling bidirectional communication and maintaining reliable light emission control
Solution Approach 2:
The communication system dynamically adjusts its behavior based on the slave's readiness state. When the slave is ready for lighting, information communication is permitted; when not ready, release control communication takes precedence. This dynamic adaptation allows the system to maintain both information acquisition capability and light emission control reliability under different operational conditions
Data Source
AI summary
A communication device capable of preventing a failure in light emission control caused due to communication with a lighting device such as the master and the slave. The communication device is capable of connecting to an image pickup device and transmits a lighting instruction from the image pickup device to a lighting device through a communication unit capable of performing bidirectional communication. It is determined whether or not the lighting device is ready for lighting. The lighting device is prevented from transmitting information to the communication unit when the lighting device is ready for lighting.