Fused Silica Hyper Hemispherical Dome Lens
The fused silica hyper-hemispherical dome lens is an optical fomr lens precision machined from high-purity fused silica. Coligh Optics custom-manufactures various optical domes in China.
- Hemispherical optical design
- High-purity fused silica substrate
- Integrated imaging and protective functions
- High surface figure accuracy and superior surface finish
- Customized coating options available
Fused Silica Hyper Hemispherical Optical Dome Lens Description
Made from high-purity fused silica, these hyper-hemispherical dome lenses feature a curvature extending beyond a hemisphere, enabling an ultra-wide field of view. They serve a dual purpose: acting as a protective cover while also functioning as an active optical element for imaging. Key characteristics include wide-angle capability, high-pressure resistance, and wear resistance. Coligh Optics offers custom manufacturing tailored to specific requirements, including the radius of curvature, center and edge thicknesses, and coating specifications.
Product features include:
- An optical design exceeding a hemispherical shape, achieving a field of view of over 180°—ideal for wide-angle imaging and surveillance applications.
- High-purity fused silica material offering broad-spectrum transmission and a low coefficient of thermal expansion, suitable for wavelengths ranging from ultraviolet (UV) to near-infrared (NIR).
- Dual functionality as both an optical lens and a durable window capable of withstanding pressure and abrasion.
- High-precision surface accuracy (up to λ/10) to meet the stringent demands of precision optical systems.
- A wide range of custom coating options, including—but not limited to—anti-reflective (AR) coatings, hydrophobic/oleophobic coatings, DLC protective coatings, and conductive coatings.
Fused Silica Hyper Hemispherical Optical Dome Lens Detail Display
Fused Silica AR coated Hyper-hemispherical Dome Custom Capability
| Item | Custom Capability |
| Material | Fused Silica / UV Grade Fused Silica / IR Grade Fused Silica |
| Product Structure | Hyper Hemispherical Dome Lens |
| Outer Diameter (OD) | 8–350 mm |
| Dome Height | 5–300 mm |
| Center Thickness | 2–30 mm |
| Surface Quality | 10-5, 20-10, 40-20, 60-40 |
| Surface Figure | λ/10 |
| AR Coating | Single-Point AR Coating / Broadband AR Coating / ITO Conductive Coating/ DLC coating, |
| Coating Surface | Single-Sided / Double-Sided |
| Dimensional Tolerance | ±0.05 mm |
