Spherical Mirrors
Featured Product from Avantier Inc.
Types of Spherical Mirrors
- Concave Spherical Mirrors: These mirrors curve inward and have a reflective surface that can focus light. They have a positive focal length and a positive radius of curvature. Concave mirrors magnify objects that are close to them.
- Convex Spherical Mirrors: These mirrors curve outward and typically make objects appear smaller than they are. They have a negative focal length and a negative radius of curvature. Convex mirrors are often used to expand the field of view in imaging systems.
Manufacturing Concave Mirrors
- Avantier uses computer-controlled sub-aperture tools for precise spherical surface manufacturing.
- Post-processing techniques are employed to reduce surface roughness and wavefront errors.
- Controlled polishing methods and engineering techniques are used to meet tight specifications.
Custom Spherical Mirrors
- Avantier offers custom solutions for spherical mirrors if their in-stock options don’t meet specific requirements.
- Their design team can collaborate with customers to determine ideal specifications and create optical systems that meet specific needs.
- The manufacturing facility is equipped with advanced equipment, and quality checks are performed on all optics produced.
Factory Standard
| Spherical Tolerance | λ/4 |
| Diameter | +0, -0.2mm |
| Surface Quality | 40-20 |
| Clear Aperture | >90% diameter |
| Radius of Curvature | +2% |
| Bevel | 0.2mmx45°typical |
| Thickness | +0.2mm |
| Material | BK7 |
| Durability | to MIL-C-675 |
| Reflectance | R>85% (350-1550nm) |
