Precision Round Optical Mirrors
Round Precision Mirrors
Round precision mirrors are available in three different materials to meet various demanding applications where a high degree of wavefront integrity is critical. All are Aluminum coated with a protective SiO overcoat. They are also available uncoated for use as windows or flats.
Target Grade — made of fine annealed Pyrex, a borosilicate glass, with a low coefficient of thermal expansion. Pyrex has a high resistance to temperature change and chemical corrosion.
Interferometer Grade — made of synthetic fused silica which provides superior transmission characteristics, a high degree of purity, exceptional environmental durability, and a low coefficient of thermal expansion.
Zerodur — made of a glass-ceramic material which is thermally more stable than fused silica.
Target Grade Specifications
- S1: Flatness specified at 633nm
- 60/40 scratch/dig, except where noted
- S2: Fine ground
- Diameter: +/-1.0mm
- Thickness: +/-1.0mm
- Material: Fine annealed Pyrex
- * Standard 80/50 scratch/dig
|
| Diameter |
Thickness |
Flatness |
Flatness |
| 25.4mm |
6.2mm |
1/4 wave |
1/10 wave |
| 50.8mm |
9.5mm |
1/4 wave |
1/10 wave |
| 76.2mm |
12.7mm |
1/4 wave |
1/10 wave |
| 101.6mm |
15.8mm |
1/4 wave |
1/10 wave |
| *152.4mm |
25.4mm |
1/4 wave |
1/10 wave |
| *203.0mm |
33.8mm |
1/4 wave |
1/10 wave |
|
Interferometer Grade Specifications
- S1: Flatness specified at 633nm
- 60/40 scratch/dig
- S2: Fine ground
- Diameter: +/-0.5mm
- Thickness: +/-0.5mm
- Material: Fused silica
|
| Diameter |
Thickness |
Flatness |
Flatness |
| 25.4mm |
12.7mm |
1/10 wave |
1/20 wave |
| 50.8mm |
15.9mm |
1/10 wave |
1/20 wave |
| 76.2mm |
15.9mm |
1/10 wave |
1/20 wave |
| 101.6mm |
19.1mm |
1/10 wave |
1/20 wave |
| 127.0mm |
19.1mm |
1/10 wave |
1/20 wave |
| 152.4mm |
25.4mm |
1/10 wave |
1/20 wave |
|
Zerodur
Please call for a prompt quotation on your specifications.
