PRECISION THIN ROUND WINDOWS
Manufactured from high quality UV grade fused silica
Precision polished on both surfaces (20-10 scratch & dig)
Parallelism up to 30 arcsec
Precision thin round windows are designed to be used in precision optical systems. Windows have high optical transmission with little distortion of the transmitted signal.
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
UV FS
Surface quality
20-10 scratch & dig (MIL-PRF-13830B)
Clear aperture
>90 % of diameter
Diameter tolerance
+0.00/-0.12 mm
Thickness tolerance
±0.2 mm
Surface flatness
λ/10 or λ/4 @ 633 nm
Parallelism
<30 arcsec or <1 arcmin
Parallelism - 30 arcsec
CODE
MATERIAL
DIAMETER
THICKNESS T
FLATNESS
PARALLELISM
226-1111E
UV FS
12.7 mm
1.0 mm
λ/10
30 arcsec
226-1111M
UV FS
12.5 mm
1.0 mm
λ/10
30 arcsec
226-1121E
UV FS
12.7 mm
2.0 mm
λ/10
30 arcsec
226-1121M
UV FS
12.5 mm
2.0 mm
λ/10
30 arcsec
226-1191
UV FS
20.0 mm
1.0 mm
λ/10
30 arcsec
226-1201
UV FS
20.0 mm
2.0 mm
λ/10
30 arcsec
226-1211E
UV FS
25.4 mm
1.0 mm
λ/10
30 arcsec
26-1211M
UV FS
25.0 mm
1.0 mm
λ/10
30 arcsec
226-1221E
UV FS
25.4 mm
2.0 mm
λ/10
30 arcsec
226-1221M
UV FS
25.0 mm
2.0 mm
λ/10
30 arcsec
226-1531E
UV FS
50.8 mm
3.0 mm
λ/10
30 arcsec
226-1531M
UV FS
50.0 mm
3.0 mm
λ/10
30 arcsec
Parallelism - 1 arcmin
CODE
MATERIAL
DIAMETER
THICKNESS T
FLATNESS
PARALLELISM
226-1116E
UV FS
12.7 mm
1.0 mm
λ/4
1 arcmin
226-1116M
UV FS
12.5 mm
1.0 mm
λ/4
1 arcmin
226-1126E
UV FS
12.7 mm
2.0 mm
λ/4
1 arcmin
226-1126M
UV FS
12.5 mm
2.0 mm
λ/4
1 arcmin
226-1216E
UV FS
25.4 mm
1.0 mm
λ/4
1 arcmin
226-1216M
UV FS
25.0 mm
1.0 mm
λ/4
1 arcmin
226-1226E
UV FS
25.4 mm
2.0 mm
λ/4
1 arcmin
226-1226M
UV FS
25.0 mm
2.0 mm
λ/4
1 arcmin
226-1516E
UV FS
50.8 mm
1.0 mm
λ/4
1 arcmin
226-1516M
UV FS
50.0 mm
1.0 mm
λ/4
1 arcmin
226-1526E
UV FS
50.8 mm
2.0 mm
λ/4
1 arcmin
226-1526M
UV FS
50.0 mm
2.0 mm
λ/4
1 arcmin
226-1536E
UV FS
50.8 mm
3.0 mm
λ/4
1 arcmin
226-1536M
UV FS
50.0 mm
3.0 mm
λ/4
1 arcmin
描述 [描述] Precision thin round windows are made from UVFS or BK7 and polished on both surfaces (20-10 scratch&dig). Parallelism is up to 30 arcsec.