Home » Optics » Crystals: CaF2, Ge, LiF, MgF2, Si Lenses
CaF2, Ge, LiF, MgF2, Si Lenses
We provide a range of Crystal windows and lenses.
Specifications
| Parameter | Standard |
| Diameter Tolerance: | +0/-0.1 mm |
| Thickness Tolerance: | +/-0.1 mm |
| Surface Figure at 632.8nm(over 85% dimension): | λ |
| Parallism: | +/-10 arc sec. |
| Surface Quality: | 40-20 |
| Clear Aperture: | > 90 % of dimensions |
CaF2 Lenses
| Diameter | Material | Thickness | Part No. |
| Φ(mm) | Name | t(mm) | Standard |
| 6.55 | CaF2 | 1.00 | JTS 001 |
| 13.08 | CaF2 | 1.00 | JTS 002 |
| 12.70 | Ge | 1.00 | JTS 003 |
| 25.40 | Ge | 1.00 | JTS 004 |
| 6.55 | LiF | 1.00 | JTS 005 |
| 13.08 | LiF | 1.00 | JTS 006 |
| 6.55 | MaF2 | 1.00 | JTS 007 |
| 13.08 | MaF2 | 1.00 | JTS 008 |
| 12.70 | Si | 1.00 | JTS 009 |
| 25.40 | Si | 1.00 | JTS 010 |
Others
| Material | Diameter(mm) | Thickness(mm) | Surface Quality/Surface accuracy | |||
| Precision | Standard | |||||
| Si | Φ3-Φ300 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| Ge | Φ3-Φ300 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| ZnS | Φ3-Φ300 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| ZnSe | Φ10-Φ100 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| GaAs | Φ10-Φ100 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| MgF2 | Φ5-Φ100 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| CaF2 | Φ5-Φ100 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| LiF | Φ5-Φ100 | ---- | 40/20 | λ/8 | 60/40 | λ/4 |
| PbMO3 | Φ2-Φ60 | ---- | ---- | ---- | 60/40 | λ/4 |
| AMTIR | Φ2-Φ60 | ---- | 40/20 | ---- | ---- | λ/4 |
| YAG | Φ3-Φ10 | ---- | 10/5 | λ/10 | ---- | ---- |