Fused Silica Flanged Optical Hemispherical Dome
The Fused Silica Flanged Optical Hemispherical Dome is made with high-purity fused silica and a one-piece flange design. Coligh Optics customs and manufactures Fused Silica Flanged Optical Hemispherical Dome in China.
- High transmission in the 180 nm–2100 nm range
- Fused silica offers high-temperature and thermal shock resistance
- Fused silica possesses high mechanical strength
- High-precision surface figure and flange structure
Fused Silica Flanged Optical Hemispherical Dome Description
Fused Silica Flanged Optical Hemispherical Domes are precision-machined components featuring a hemispherical optical window with an integrated mounting flange. This design makes them ideal for use as protective windows and imaging elements in systems such as underwater photography equipment and high-pressure vessel viewing ports. Coligh Optics specializes in the manufacture of various optical dome lenses; we offer customization options for diameter, wall thickness, spherical radius, flange dimensions, and coating specifications to meet unique customer requirements.
Key product features include:
- High transmission across the 185–2100 nm wavelength range, making them highly suitable for UV, visible, and near-infrared optical systems.
- Extremely low thermal expansion coefficient, allowing for reliable operation under significant temperature differentials and in high-temperature environments.
- High mechanical strength, including excellent hardness and compressive strength, making them ideal for deep-water and high-pressure applications.
- Superior surface quality: surface figure accuracy can exceed λ/10, and surface finish can reach 20-10 standards.
Fused Silica Flanged Optical Hemispherical Dome Detail Display
Fused Silica Flanged Hemispherical Optical Domes Custom Capablity Description
| Item | Custom Capability |
| Material | Fused Silica / UV Grade Fused Silica / IR Grade Fused Silica |
| Product Structure | Hemispherical Dome with Flange |
| Outer Diameter | 8–350 mm |
| Dome Height | 5–150 mm |
| Wall Thickness | 2–30 mm |
| Surface Quality | 40-20, 60-40 |
| Surface Figure | λ/10 |
| Transmission & Coating Wavelength Range | Customizable across the UV–IR range |
| AR Coating | Single-Point AR Coating / Broadband AR Coating |
| Dimensional Tolerance | ±0.05 mm |
Flanged Hemispherica Fused Silica Optical Domes Application
Underwater Robot Lighting
Underwater robots operate in environments characterized by high deep-sea pressure and the corrosive nature of seawater. The physical properties of fused silica hemispherical domes allow for the uniform distribution of external water pressure and the reduction of hydrodynamic drag; this ensures the integrity of the robot’s viewing window—preventing breakage or deformation under high-pressure conditions—while facilitating clear underwater imaging.
Aviation Optoelectronic Pods
During flight, aviation optoelectronic pods are subjected to aerodynamic heating and erosion from wind, sand, and rain. Fused silica offers excellent high-temperature and thermal shock resistance. Consequently, fused silica hemispherical domes serve as optical windows at the front of these pods, housing internal sensors such as visible-light cameras and infrared thermal imagers to ensure effective multispectral imaging while minimizing damage to the window caused by environmental elements.
Underwater Surveillance
Underwater activities—such as pipeline inspection and aquaculture—require windows that can remain submerged for extended periods while withstanding water pressure and resisting corrosion or fouling from factors like algae. Fused silica hemispherical domes can be integrated into underwater cameras or pipeline inspection robots to provide a wide-angle field of view while simultaneously inhibiting microbial adhesion.
