|
BK7
window is the most common type of window.
It has good performance over visible and near infrared
wavelength region.
BK7 window is ideal for
applications require minimal transmitted beam deviation.
New Rise Optics offers High Precision BK7 windows in both
round and rectangular form with an improved parallelism of
10 arc seconds. High Precision BK7 Windows are available
for small quantity R&D projects as well as large production
runs.
| Main Specifications
|
|
|
|
| |
Super
Precision |
High
Precision |
Standard
Precision |
| Material |
BK7 grade A optical glass
|
| Diameter
Tolerance |
+0/-0.10mm |
| Thickness
Tolerance |
�0.10mm
|
| Clear
Aperture |
>
85% |
| Flatness
( @633nm) |
l
/10 |
l
/4
|
1
l per 25mm
|
| Parallelism |
<10 arc
seconds |
<30 arc
seconds |
<1
arc minutes |
| Surface
Quality (S/D) |
20/10 |
40/20 |
60/40 |
| Bevel |
0.25mm x
45� |
| Coating |
Available
upon request
|
|
|
Standard Products
|
|
Part No. |
Diameter (mm) |
Thickness (mm) |
|
WIN-1101 |
10.0 |
3.0 |
|
WIN-1102 |
12.7 |
3.0 |
|
WIN-1103 |
15.0 |
3.0 |
|
WIN-1104
|
25.4
|
3.0
|
|
|
