Flanged Optical Domes for Underwater Detection
Nov. 10, 2025
Flange dome is an optical dome with a flange mounting structure,designed to protect optical cameras and sensors. Featuring excellent optical performance and mechanical strength, they are widely used in the marine industry, including underwater robots, aquaculture, marine environmental and ecological monitoring, and other applications.
Core Functions & Technical Advantages
Physical Protection: Isolates hydrostatic pressure, corrosion, sediment, and biofouling, safeguarding internal optical sensors from physical damage.
Optical Fidelity: Utilizes precision spherical machining and coating technologies to minimize light reflection, scattering, and distortion, ensuring clear imaging and accurate sensing data.
System Integration: The flange structure enables standardized docking with various underwater platforms, supporting multi-sensor integration and rapid replacement.
Typical Application Scenarios
In the marine industry and aquaculture, flanged domes deliver clear and stable visual and sensing support for underwater detection, pipeline inspection, and seabed operations, thanks to their superior pressure resistance, corrosion resistance, and high optical transmittance. They are widely applied in Remotely Operated Vehicles (ROVs), autonomous surface vehicles (ASVs), underwater time-lapse digital monitoring, and other scenarios.
In aquaculture, flanged domes provide reliable protection for aquaculture monitoring systems, underwater environmental monitoring stations / buoys, and optical dissolved oxygen sensors mounted on ASVs. They prevent sensors and cameras from being eroded by seawater and impurities, ensuring real-time monitoring of the aquaculture environment and fish growth status, and promoting the development of intelligent aquaculture.
In marine environmental and ecological monitoring, flanged domes offer stable and reliable optical sensing support for long-term ocean observations, hydrological surveys, and environmental research, owing to their excellent pressure resistance, corrosion resistance, and high optical transmittance. They can be used in CTD profiling sensors integrated with optical modules, directional wave buoys equipped with imaging units, seabed recorders, and other scenarios.
Flanged optical domes serve as the critical interface connecting underwater detection equipment with the real marine environment. Through precise structural design and material engineering, they achieve both high-strength protection and high-fidelity optical transmission in extreme environments, providing core technical support for underwater robot operations, intelligent aquaculture, marine ecological observation, and other fields. They are essential basic components driving marine scientific exploration and resource development.
At CLZ Optical, we provide flanged optical domes made of sapphire or fused silica, meeting the high-performance requirements of various underwater working conditions.








