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BK7 Windows
Optical Windows
>>> BK7 Windows
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 with an improved parallelism of 10 arc
seconds. High Precision BK7 Windows are available for
small quantity R&D projects or large production runs.
We
are capable of
fabricating large size BK7 windows up to 650mm×450mm.
Please email us if even larger size is needed.
General
Specifications
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High
Precision |
Standard
Precision |
| Material: |
BK7
grade A optical glass
|
| Diameter
Tolerance: |
+0/-0.10mm |
| Thickness
Tolerance: |
±0.10mm
|
| Clear
Aperture: |
>
85% |
| Flatness: |
l
/10 @633nm |
1
l
per 25mm @633nm |
| Parallelism: |
<10 arc
seconds |
<1
arc minutes |
| Surface
Quality: |
40/20 |
60/40 |
| Bevel: |
0.25mm x
45° |
| Coating: |
Available
upon request
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