Crystals

CaF2, Ge, LiF, MgF2, Si Lenses

We provide a range of Crystal windows and lenses.

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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 —- —-