| |
Material |
Properties |
Application |
BK7A |
Transmission Range:330-2100nm |
Good performance over visible and near IR spectrum for many applications |
Fused Silica |
Transmission Range: 185-2500nm |
Better performance from UV to IR spectrum. Also, it is the best choice for resistance thermal application. |
Low Thermal Expansion Coefficient: 0.54 x  K |
Calcium Fluoride |
Transmission Range: 140-9400nm |
It is applicable for wide rang spectrum, and it is particularly useful for excimer laser application. |
Refractive Index:1.400@ 5000nm |
|
| |
| ¡ñ BK7A Windows |
| Surface Flatness: |
¦Ë/10@633nm |
| Surface Quality: |
10-5 ~ 20/10 |
| Parallelism: |
<3 arcmin |
| Diameter Tolerance: |
+0.00/-0.10mm |
| Thickness Tolerance: |
¡À 0.2mm |
| Clear Aperture: |
>90% of central diameter |
| Coating: |
Optional |
| Bevel: |
0.30mm x 45¡ã |
|
Product Number |
Diameter |
Thickness |
TWI-12.7D2-B |
12.7 |
2 |
TWI-12.7D4-B |
12.7 |
4 |
TWI-20D2-B |
20.0 |
2 |
TWI-20D4-B |
20.0 |
4 |
TWI-25.4D2-B |
25.4 |
2 |
TWI-25.4D4-B |
25.4 |
4 |
TWI-30D3-B |
30.0 |
3 |
TWI-30D5-B |
30.0 |
5 |
TWI-38.1D6-B |
38.1 |
6 |
TWI-50.8D10-B |
50.8 |
10 |
TWI-76.2D13-B |
76.2 |
12.7 |
|
|
| |
¡¤All dimensions are in mm unless otherwise specified
¡¤Other sizes and special shapes are available upon request.
¡¤BTMT can reduce edge diameters of all windows to meet your requirements. |
| |
| ¡ñ UV Fused Silica Windows |
| |
| Surface Flatness: |
¦Ë/10@633nm |
| Surface Quality: |
10-5 scratch and dig |
| Parallelism: |
<3 arcmin |
| Diameter Tolerance: |
+0.00/-0.10mm |
| Thickness Tolerance: |
¡À 0.2mm |
| Clear Aperture: |
>90% of central diameter |
| Coating: |
Optional |
| Bevel: |
0.30mm x 45¡ã |
|
Product Number |
Diameter |
Thickness |
TWI-12.7D2-U |
12.7 |
2 |
TWI-12.7D4-U |
12.7 |
4 |
TWI-25.4D2-U |
25.4 |
2 |
TWI-25.4D4-U |
25.4 |
4 |
TWI-38.1D6-U |
38.1 |
6.35 |
TWI-50.8D6-U |
50.8 |
6.35 |
|
|
| |
¡¤All dimensions are in mm unless otherwise specified
¡¤Other sizes and special shapes are available upon request. |
| |
| ¡ñ CaF2 Windows |
| |
| Surface Flatness: |
¦Ë/4@633nm |
| Surface Quality: |
20/10 ~ 40/20 |
| Parallelism: |
<3 arcmin |
| Diameter Tolerance: |
+0.00/-0.10mm |
| Thickness Tolerance: |
¡À 0.2mm |
| Clear Aperture: |
>90% of central diameter |
| Coating: |
Optional |
| Bevel: |
0.30mm x 45¡ã |
|
Product Number |
Diameter |
Thickness |
TWI-12.7D2-C |
12.7 |
1.5 |
TWI-12.7D3-C |
12.7 |
3.0 |
TWI-25.4D2-C |
25.4 |
2.0 |
TWI-25.4D3-C |
25.4 |
3.0 |
TWI-25.4D6-C |
25.4 |
6.35 |
TWI-38.1D6-C |
38.1 |
6.35 |
|
|
| |
¡¤All dimensions are in mm unless otherwise specified
¡¤Other sizes and special shapes are available upon request. |
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