Mirror is a reflecting surface that forms an image of an object when light rays coming from that object fall upon it. Usually mirrors are made of plate glass, one side of which is coated with metal or some special preparation to serve as a reflecting surface.
We offer dielectric coated mirrors and metal coated mirrors which are made of substrate such as Bk7, K9, Fused Silica, CaF2, Sapphire and so on.
We supply
- 1. Wide range of custom made optical mirrors, suited for most applications.
- 2. Custom-made Mirrors at any size from diameter 2mm to diameter 300mm and with shape of quadrate, triangular or other polygonal are available upon request.
- 3. Thickness from 1mm to 20mm is provided upon request.
1. Broadband Dielectric Mirrors
A dielectric mirror is a type of a mirror composed of multiple thin layers of dielectric material, typically deposited on a substrate of optical material (e.g. glass).
Dielectric mirrors are used to produce ultra-high reflectivity mirrors: values of 99.999% or better. Alternatively, they can be made to reflect a broad spectrum of light such as the entire visible range, typically from 400-900nm, 600-900nm, 700-900nm, 900-1150nm.
Broadband Dielectric Mirrors have their applications as laser cavity end mirrors
Standard Specifications
| Material | Fused Silica/Glass |
|---|---|
| Diameter Tolerance | +0/-0.15mm |
| Thickness Tolerance | ±0.25mm |
| Parallelism | ≤ 3 arc minutes |
| Chamfer | 0.35mm leg width at 45° nominal |
| S1 Surface Flatness | < λ/4 p-v @633mm before coating |
| S1 Surface Quality | 60-40 scratch-dig |
| Clear Aperture | ≥ 90% of edge dimension or diameter |
| Average Reflectance | :≥ 98% @ 0° – 45° AOI |
| Damage Threshold | 0.4 J/cm2, 10ns @ 532 (typical) |
2. Parabolic Mirrors
Typically designed as a segment of a larger parabola, manufactured from a metal substrate such as aluminum and coated in enhanced aluminum, silver or gold as standard. These mirrors focus light similar to a concave mirror with the significant exception being that the off-axis parabolic design redirects the incident light through 90%.
Custom mirrors may be manufactured in a range of substrates and alternative coatings as required by our customer's specifications including UV and IR coatings and materials and alternative reflection angles.
3. Concave Mirrors
Concave mirrors with the following specifications that are in available with us
| MATERIAL: | Optical glass |
| DIMENSION TOLERANCE:: | +0.00/0.20mm |
| EDGES: | Fine ground |
| SURFACE: | 60/40 |
| FLATNESS: | ≤ 3 fringes |
| COATING: | AL + SIO over coated |
| REFLECTANCE: | R≥90% @ 550nm |
| FOCAL LENGTH: | ±2% |
| CUSTOM MADE SIZES | |
| DIMENSIONS: | Diameters 10mm to 250mm |
| COATING: | Gold |