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Windows
 
Windows-Selection of catalog (PDF, 120k)
 
Windows are glass with parallel surfaces used to enable optical radiation to pass from one environment to another without allowing environments to mix.
Material, transmission, scattering, wavefront distortion,damage threshold and resistance to certain environments should be considered when selecting windows.
 
 
Materials: N-BK7, UV Fused silica, Borofloat 33, Pyrex, CaF2,BaF2
  Other optical glasses from Schott,CDGM
 
General Specifications
 
Low Grade
Standard Grade
High grade
Dimensional tolerance
±0.1mm
±0.1mm
±0.05mm
Surface quality
60-40 S/D
20-10 S/D
10-5 S/D
Parallelism
3 arcmin
1 arcmin
30 arcsec
Flatness
λ/2@633nm
λ/4@633nm
λ/8@633nm
Bevel
Protective bevel
Protective bevel
Protective bevel
 
Typical Sizes
Round Shape: Diameter(mm)
Φ5.0
Φ10.0
Φ12.7
Φ15.0
Φ20.0
Φ25.4
Φ30.0
Φ38.1
Φ50.8
Φ76.2
 
Square Shape WxH(mm)
5.0x5.0
10.0x10.0
15.0x15.0
20.0x20.0
25.0x25.0
50.0x50.0
 
Thickness(mm)
0.5
1.0
1.5
2.0
3.0
4.0
5.0
6.0
8.0
10.0
 
 
 
 
 
Choose Anti-reflective Coatings
 Single layer MgF2
 Multiple layers AR coating
     R<0.25% @ Laser line             (view the curve)
     R<0.5% @ Broadband Wavelength      (view the curve)
 
        How to order Windows?              Example:
Material:   N-BK7
Diameter:   Φ12.7±0.1mm
Thickness:   2.0±0.1mm
Surface quality:   60-40 S/D
Flatness:   λ/4 @633nm
Paralelism:   3'
Coating:   AR @1064nm, R<0.25%, AOI=0
 
   Price on Request
 
   Custom Design
 
   Volume Discount 
 
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