WINDOWS

Windows are optical glass normally with polished faces that are relatively parallel. They are used to protect laser output. Windows are often AR coated to minimize reflection. AR coated windows offer improved transmission when used in industrial displays or computer monitors. The high transmission makes them ideal for most industrial and laser protecting applications.

BK7 windows

Material
BK7 Grade A optical glass
Dimension Tolerance
+0.0/-0.2mm
Thickness Tolerance
±0.2mm
Clear Aperture
>80%
Parallelism
1 arc minute for standard 
10 arc seconds for high precision
Surface Quality
60/40 for standard 
20/10 for high precision
Wavefront Distortion
λ for standard per 25mm@633nm
λ/10 for precision per 25mm@633nm
Chamfer
Protected <0.5mm x 45deg
Coating
Uncoated, available

Standardtd>
High Precision/td>
Part No.
ø(mm)
T(mm)
Part No.
ø(mm)
T(mm)
WIN0110
10.0
3.0
WIN0010
10.0
6.0
WIN0112
12.7
3.0
WIN0012
12.7
6.0
WIN0115
15.0
3.0
WIN0015
15.0
6.0
WIN0120
20.0
3.0
WIN0020
20.0
6.0
WIN0125
25.4
3.0
WIN0025
25.4
6.35
WIN0130
30.0
3.0
WIN0030
30.0
6.35
WIN0150
50.8
6.35
WIN0050
50.8
10.0


Fused Silica Windows

Material
UV grade fused silica
Dimension Tolerance
+0.0/-0.2mm
Thickness Tolerance
±0.2mm
Clear Aperture
>80%
Parallelism
1 arc minute for standard
10 arc seconds for high precision
Surface Quality
60/40 for standard
20/10 for high precision
Wavefront Distortion
λ for standard per 25mm@633nm
λ/10 for precision per 25mm@633nm
Chamfer
Protected <0.5mm x 45deg
Coating
Uncoated, available

 
Standardtd>
High Precision
Part No.
ø(mm)
T(mm)
Part No.
ø(mm)
T(mm)
WIN1110
10.0
3.0
WIN1010
10.0
6.0
WIN1112
12.7
3.0
WIN1012
12.7
6.0
WIN1115
15.0
3.0
WIN1015
15.0
6.0
WIN1120
20.0
3.0
WIN1020
20.0
6.0
WIN1125
25.4
3.0
WIN1025
25.4
6.35
WIN1130
30.0
3.0
WIN1030
30.0
6.35
WIN1150
50.8
6.35
WIN1050
50.8
10.0
Note: Atoptical can provide custom made lens. Please contact us for details.