| Abbreviation | | Selection |
|---|
| F | Flat | F |
|---|
| D | Diameter (mm) | Numerical value |
|---|
| CA | Clear Aperture (mm) | Numerical value |
|---|
| t | Thickness (mm) | Numerical value |
|---|
|
|---|
| λ | Surface accuracy
(P-V at 633nm) | 4 for λ/4 |
|---|
| | 8 for λ/8 |
|---|
| | 10 for λ/10 |
|---|
| | 20 for λ/20 |
|---|
|
|---|
| SQ | Surface quality
(Scratch / Dig) | 60 - 40 for 60/40 |
|---|
| | 40 - 20 for 40/20 |
|---|
| | 20 - 10 for 20/10 |
|---|
| | 10 - 5 for 10/5 |
|---|
|
|---|
| Mtl | Material | P for Pyrex or equivalent |
|---|
| | Q for Fused Quartz or equivalent |
|---|
| | Z for Zerodur or equivalent |
|---|
|
|---|
| Ct | Coating | Al for Protected Aluminium |
|---|
| | Ag for Protected Silver |
|---|
| | Au for Protected Gold |
|---|
| | UC for Unocated |
|---|
|
|---|
| Mnt | Mount and Mounting | M for Mounted on OS mount |
|---|
| | UM for Un-Mounted |
|---|
|
|---|
|
 |
Example:
A flat mirror with the following specifications would read as the Sample Ordering Code below.
| Type: | Flat |
|---|
| Diameter: | 305 mm |
|---|
| Clear Aperture: | 290 mm |
|---|
| Thickness: | 50 mm |
|---|
| Surface accuracy: | λ/10 P-V at 633nm |
|---|
| Surface quality: | 60/40 |
|---|
| Material: | Zerodur or equivalent |
|---|
| Coating: | Protected Aluminium |
|---|
| Mounting: | Mounted on OS Mount |
|---|
|
|---|
Sample Ordering Code
| F | D | CA | t | λ | SQ | Mtl | Ct | Mnt |
|---|
| F |
/ 305 |
/ 290 |
/ 50 |
/ 10 |
/ 60-40 |
/ Z |
/ Al |
/ M |
|
