Fused Silica ITO Coated Conductive Optical Glass Domes
Fused Silica ITO Coated Conductive Optical Glass Domes is designed with fused silica substrate and coating with ITO conductive film. Coligh customs and manufactures high quality optical glass domes in China
- We utilize high-purity fused silica.
- The ITO transparent conductive film offers a balance of high light transmission and low electrical resistance.
- The ITO conductive layer shields against external electromagnetic and radio-frequency interference.
- The ITO conductive film features excellent uniformity and high reliability.
- We support the customization of various optical glass domes, including—but not limited to—dimensions, curvature, thickness, ITO sheet resistance, and coating specifications.
Fused Silica ITO Coated Conductive Optical Glass Domes Description
This ITO-coated optical dome is specifically designed for precision sensors and optical systems. Fused silica offers broad-spectrum transmission ranging from ultraviolet (UV) to near-infrared (NIR), while the ITO conductive coating provides EMI shielding and active heating capabilities for the optical glass dome.
- We utilize high-purity fused silica—with a silicon dioxide content exceeding 99.9999%—to ensure broad-spectrum transmission from UV to NIR. Fused silica is characterized by a low coefficient of thermal expansion, high-temperature resistance, and an exceptionally high laser damage threshold.
- The transparent ITO conductive coating balances high optical transmission with low electrical resistance; the sheet resistance is adjustable, and the coating offers excellent conductivity uniformity.
- By applying current to the ITO layer, the optical glass dome can generate uniform heat across its hemispherical surface, effectively preventing fogging or icing in cold and high-humidity environments.
- The ITO conductive layer shields against external electromagnetic interference (EMI) and radio-frequency (RF) reflections, thereby protecting the cameras, radar systems, and sensors housed within the dome.
Fused Silica ITO Coated Conductive Optical Glass Domes Custom Capability
| Item | Custom and Manufacturing Capability |
| Product Name | Fused Silica ITO Coated Conductive Optical Glass Domes |
| Substrate Material | Fused Silica / Fused Quartz |
| Product Type | Optical Domes, Hemispherical Domes, Spherical Segment Domes, Custom Optical Covers |
| Shape | Hemispherical, Partial Dome, Custom Dome |
| Size Range | 8–350 mm |
| Wall Thickness | Custom, designed according to dimensions, optical performance, and mechanical strength requirements |
| Dimensional Tolerance | ±0.005 mm |
| Surface Quality | 20/10, 40/20, 60/40 |
| Sheet Resistance | 5 Ω/sq – 100 Ω/sq |
| ITO Coating | Indium Tin Oxide (ITO) Transparent Conductive Coating |
| Edge Treatment | Precision Chamfering; Stepped Edges Available for Mounting and Assembly |
Fused Silica ITO Coated Dome Cover Applications
Outdoor Cameras
Outdoor cameras are prone to frost, fog, or condensation forming on the surface of their domes in conditions of low temperature, high humidity, rain, or snow, which can blur images and cause sensor failure. When energized, an ITO (Indium Tin Oxide) conductive film heats the transparent dome layer, thereby eliminating frost, fog, and water droplets. In automotive sensor applications, this ensures clear imaging around the clock and enhances driving reliability.
Radar and Communication Equipment
Radar and communication equipment require optical observation ports or signal windows in their housings or enclosures, yet they must also prevent electromagnetic interference (EMI) leakage. As ITO conductive films are both transparent and electrically conductive, they provide effective electromagnetic shielding, allowing the dome to simultaneously serve as a protective window and meet electromagnetic compatibility (EMC) requirements.
Laser Windows
Optical windows are susceptible to static electricity accumulation in dry or vacuum environments; static charges attract dust particles, and electrostatic discharge (ESD) can damage internal optical and electronic components. ITO conductive films dissipate surface static electricity—conducting the charge through the ITO layer to the ground—thereby eliminating static-related risks.
