Underwater Camera Flash Relay for Long-Distance Optical Triggering
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Solution Overview
Problem
Existing underwater cameras face limitations in using flash lamps due to energy loss and inability to propagate flash signals over long distances through optical fibers, restricting their use away from the camera.
Innovation Solution
A flash unit and camera flash system that enables wireless transmission of optical signals over long distances underwater, utilizing a flash trigger, repeater, and optical signal components like end receivers and encoders to control flash and video lamps remotely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If optical fiber is used to propagate flash signals, then the flash signal can be transmitted, but the energy loss is large and the transmission distance is limited
Solution Approach 1:
The patent replaces the optical fiber transmission system with a wireless optical signal transmission system. The flash trigger emits optical signals that are received directly by the repeater and flash lamp without requiring physical optical fiber connections, thereby eliminating the energy loss and distance limitations of optical fiber while maintaining signal transmission capability.
Solution Approach 2:
The patent introduces a repeater as an intermediary device that receives optical signals from the flash trigger, processes them, and retransmits them to the flash lamp. This intermediary enables long-distance wireless transmission by relaying the optical signals through water, overcoming the limitations of direct optical fiber transmission.
2Reliability
If optical fiber is used to control flash lamp, then the flash signal can be transmitted, but it cannot propagate over a long distance
Solution Approach 1:
The patent replaces the optical fiber-based signal transmission system with a wireless optical communication system. The flash trigger, repeater, and flash lamp communicate through optical signals transmitted through water, eliminating the physical connection requirements and distance limitations of optical fiber while maintaining reliable signal transmission.
Solution Approach 2:
The patent transitions from one-dimensional optical fiber transmission to three-dimensional wireless optical signal propagation through water. This allows the system to overcome the linear distance limitations of optical fiber by utilizing the volumetric space around the camera and repeater for signal transmission.
3Adaptability or versatility
If flash lamp is placed far from camera, then more flexibility is achieved, but optical fiber cannot transmit the signal effectively
Solution Approach 1:
The patent introduces a repeater as an intermediary device positioned between the camera and the remotely placed flash lamp. The repeater receives optical signals from the flash trigger near the camera and retransmits them to the flash lamp at a distance, enabling flexible placement while maintaining signal integrity and minimizing energy loss through the wireless optical transmission path.
Solution Approach 2:
The patent replaces the optical fiber connection system with a wireless optical transmission system, allowing the flash lamp to be placed at greater distances from the camera without being constrained by the physical limitations of optical fiber. This substitution enables more flexible positioning while maintaining effective signal transmission.
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 the use of flash and video lamps far away from the camera, providing effective illumination and color temperature adjustment for underwater photography, with broad market application.
Implementation Method 1
optical signals can be transmitted wirelessly over a long distance underwater
Implementation Method 2
end receiver, capable of receiving optical signals
Data Source
AI summary
Disclosed are a flash unit, a camera and a camera flash system, and relates to the technical field of underwater photographic equipment, including a flash lamp, capable of illuminating an photographed object; a video lamp, having the functions of color temperature adjustment and full color gamut coverage by light; a camera body, taking photos for the illuminated object; a waterproof case; a flash trigger, capable of generating an optical signal; and a repeater, capable of receiving the optical signal from the flash trigger, and then encoding and transmitting a new high-power optical signal. According to the present disclosure, under the cooperation of components such as the flash trigger and the repeater, the optical signal can be transmitted wirelessly over long distance underwater, thus achieving the effect of using the flash and video lamps far away from the camera. The present disclosure has a broad market application prospect.