FLAT ROUND WINDOWS
Made of BK7 glass or UV grade fused silica
High transmittance, low wavefront distortion and low scatter
Durable and strong
2 arcmin parallelism
Can be supplied with AR, HR or metallic coatings
The usage of flat windows allows optical radiation to pass from one environment to another, without mixing other components of these environments. Considerations in selecting windows may include transmission, scattering, wavefront distortion and resistance to certain environments. The ideal window allows an optical beam to pass from one medium to the next without changing the wavelength distribution of the beam, the transmitted wavefront or scatter any of the light out of the beam. We offer windows of three different materials, from which you may choose in accordance with the properties you need: BK7 and UV grade fused silica.
Windows can be supplied with a coating of your choice. If you would like to order a window with coating, please note the code of the window and the code of the coating in your request. For required coating please refer to the COATINGS section.
Material
BK7, UV FS
Surface quality
60-40 scratch & dig (MIL-PRF-13830B)
Clear aperture
>80% of the diameter
Diameter tolerance
+0.00/ -0.5 mm
Thickness tolerance
±0.2 mm
Flatness
1 λ per inch @ 633 nm
Parallelism
2 arcmin
BK7
CODE
MATERIAL
DIAMETER
THICKNESS T
210-0102E
BK7
12.7 mm
2 mm
210-0102M
BK7
12.5 mm
2 mm
210-0103E
BK7
12.7 mm
3 mm
210-0103M
BK7
12.5 mm
3 mm
210-0202E
BK7
25.4 mm
2 mm
210-0202M
BK7
25.0 mm
2 mm
210-0203E
BK7
25.4 mm
3 mm
210-0203M
BK7
25.0 mm
3 mm
210-0402E
BK7
38.1 mm
2 mm
210-0402M
BK7
40,0 mm
2 mm
210-0403E
BK7
38.1 mm
3 mm
210-0403M
BK7
40.0 mm
3 mm
210-0502E
BK7
50.8 mm
2 mm
210-0502M
BK7
50.0 mm
2 mm
210-0503E
BK7
50.8 mm
3 mm
210-0503M
BK7
50.0 mm
3 mm
210-0703E
BK7
76.2 mm
6.3 mm
210-0703M
BK7
75.0 mm
6.3 mm
UVFS
CODE
MATERIAL
DIAMETER
THICKNESS T
210-1102E
UVFS
12.7 mm
2 mm
210-1102M
UVFS
12.5 mm
2 mm
210-1103E
UVFS
12.7 mm
3 mm
210-1103M
UVFS
12.5 mm
3 mm
210-1202E
UVFS
25.4 mm
2 mm
210-1202M
UVFS
25.0 mm
2 mm
210-1203E
UVFS
25.4 mm
3 mm
210-1203M
UVFS
25.0 mm
3 mm
210-1402E
UVFS
38.1 mm
2 mm
210-1402M
UVFS
40.0 mm
2 mm
210-1403E
UVFS
38.1 mm
3 mm
210-1403M
UVFS
40.0 mm
3 mm
210-1502E
UVFS
50.8 mm
2 mm
210-1502M
UVFS
50.0 mm
2 mm
210-1503E
UVFS
50.8 mm
3 mm
210-1503M
UVFS
50.0 mm
3 mm
210-1703E
UVFS
76,2 mm
6.3 mm
210-1703M
UVFS
75.0 mm
6.3 mm
描述 [描述] The usage of flat windows allows optical radiation to pass from one environment to another, without mixing other components of these environments.