| Calcium Fluoride is good
choice for optical windows in the 0.13 μm - 9 μm
range.
This material has found wide use in high power laser
optics due to its low absorption. Polished surfaces
are stable and will last several years under normal
conditions. Due to its low refractive index, Calcium
Fluoride can be used without anti-reflection coating.
Laser Optex provide OEM & Custom service for industry and research on High quality CaF2 optics.
| CaF2 optics |
High
Precision |
Standard
|
| Specifications |
|
|
|
Diameter Tolerance |
+0.0/-0.1mm |
+0.0/-0.1mm |
| Thickness
tolerance |
±0.05mm |
±0.2mm |
| Clear
Aperture |
>90% |
>90% |
| Parallelism |
<10
seconds |
3' |
| Surface
Quality |
20-10
scratch and dig |
60-40
scratch and dig |
| Wavefront
Distortion |
λ/8
per 25mm at 632nm |
1λ
per 25mm at 632nm |
| Bevel |
< 0.25mm×45º |
<0.25mm×45º |
Standard catalog of IR grade CaF2 window
Part No. |
Dimension mm |
Price 1-10pcs |
lead time |
CAW101 |
Φ10×0.15 mm , IR standard grade |
$40 |
2 weeks |
| CAW151 |
Φ15×0.15 mm , IR standard grade |
$50 |
2 weeks |
CAW201 |
Φ20×0.15 mm, IR standardgrade |
$60 |
2 weeks |
CAW251 |
Φ25×0.15 mm, IR standardgrade |
$70 |
2 weeks |
Standard catalog of UV grade precision CaF2 window
Part No. |
Dimnsion mm |
Price 1-10pcs |
Lead time |
| CAWU101 |
Φ10×0.15 mm |
$40 |
2 weeks |
| CAWU151 |
Φ15×0.15 mm |
$50 |
2 weeks |
| CAWU251 |
Φ25.4×0.15 mm |
$70 |
2 weeks |
Dispersion Prism Pair (Achromatic anamorphic prism pair )
Standard catalog of CaF2 dispersion prism pair
Part No. |
Material |
Design
Spectrum |
Limits of
Trans. |
Separation
λ 2 - λ 1 * |
Brewster's
Angle |
Apex
Angle |
DPAU-15 |
UV CaF2 |
130nm - 250nm |
9.6μm |
~ 5 ° |
56° - 59° |
69.9° |
DPAU-25 |
IR CaF2 |
190nm - 6μm |
9.6μm |
~ 5 ° |
56° - 59° |
69.9° |
λ 2 - λ 1 refers to Design Spectrum extremes, for example 130/250 nm (ABSV)
Other material is available : SF10, Fused silica, BK7 etc. |
Custom CaF2 prism are available on request![]() ![]()
Excimer Grade Calcium Flouride (CaF2) lens
Part No. |
Diameter |
Focal length at 193nm |
Beam Dia. |
Theoretical
Focal Spot |
R1 mm |
R2 mm |
CT |
LCA-12-20 |
12.7mm |
20.2 mm |
2.4 mm |
2.0 µm |
12.20 |
-55.80 |
3.5 |
LCA-12-20n |
12.7mm |
-20.0 mm |
2.4 mm |
------ |
-12.55 |
55.80 |
2.5 |
LCA-12-25 |
12.7mm |
25.1 mm |
2.8 mm |
2.2 µm |
14.00 |
-121.45 |
3.5 |
LCA-12-25n |
12.7mm |
-25.1 mm |
2.8 mm |
------ |
-14.60 |
100.03 |
2.5 |
LCA-12-40 |
12.7mm |
39.9 mm |
4.0 mm |
2.7 µm |
23.56 |
-132.5 |
3.5 |
LCA-12-40n |
12.7mm |
-40.3 mm |
4.0 mm |
------ |
-24.07 |
130.57 |
2.5 |
LCA-25-63 |
25.4mm |
62.5 mm |
5.6 mm |
2.9 µm |
37.85 |
-184.35 |
6.0 |
LCA-25-80 |
25.4mm |
79.8 mm |
6.6 mm |
3.0 µm |
47.65 |
-249.54 |
5.0 |
LCA-25-100 |
25.4mm |
100.4 mm |
7.9 mm |
3.3 µm |
58.07 |
-385.44 |
4.5 |
LCA-25-140 |
25.4mm |
140.3 mm |
10.1 mm |
3.5 µm |
81.50 |
-529.26 |
4.5 |
LCA-25-190 |
25.4mm |
189.4 mm |
12.7 mm |
3.8 µm |
109.13 |
-760.00 |
4.0 |
Custom CaF2 lens are available on request![]() ![]() |
