Brewster Windows
Specifications：
|
Item |
BK7windows |
JGS1 windows |
|
Wavelength |
350-2000nm |
185-2100nm |
|
Diameter Tol |
+0.0，-0.1mm |
+0.0，-0.1mm |
|
Thickness Tol |
+/-0.1mm |
+/-0.1mm |
|
Clear Aperture |
>85% |
>85% |
|
Parallelism |
1′（Standard） 10″（High Precision） |
1′（Standard） 10″（High Precision） |
|
Surface Quality |
60/40（Standard） 20/10（High Precision） |
60/40（Standard） 20/10（High Precision） |
|
Wavefront |
λ/ 4(Standard) λ/10（High Precision）per 25mm@633nm |
λ/ 4(Standard) λ/10（High Precision）per 25mm@633nm |
|
Chamfers |
<0.25mm*45° |
<0.25mm*45° |
Most sizes with λ/20 transmitted wavefront and 10-5 surface quality are available
All kinds of coatings are available
Custom designs for other sizes and coatings are also available upon request.
BK7 Standard Brewster Windows：
|
Diameter (mm)
|
Diameter (mm)
|
Thickness（mm）
|
Reflectance vs AOI
|
|
10.0
|
1.0
|
 |
|
|
WINB105-T1
|
12.7
|
1.0
|
|
|
WINB108-T2
|
20
|
2.0
|