BK7 Windows

BK7 Windows

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Product Catalogue

Part No. Φ(mm) T(mm)
WIN0018 10.00 3.0
WIN0026 12.7 1.0
WIN0027 12.7 3.0
WIN0035 15.0 1.0
WIN0036 15.0 3.0
WIN0060 25.0 3.0
WIN0063 25.4 3.0
WIN0081 30.0 3.0
WIN0090 50.0 3.0
WIN0091 50.8 6.35

 

Specifications

Material

BK7 grade A optical glass

Diameter Tolerance

+0.0/-0.1mm

Thickness Tolerance

+/-0.2mm

Surface Quality

60-40 scratch and dig

Parallelism

1 arc minute

Clear Aperture

>80%

Wavefront Distortion

λ/4 per 25mm @632.8nm

Chamfer

Protective Bevel