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Standard Optical Window & Coating


Specifications

Material

BK7, UV Fused Silica, Borofloat,B270, Borosilicate(Pyrex) or other

Dimension Tolerance

+0.0/-0.1mm

Thickness Tolerance

±0.1mm

Clear Aperture

>90%

Parallelism

Standard: 30 arc seconds
High Precision:
10 or 5 or 2 or 0.5 arc seconds

Surface Quality

Standard: 60/40
High Precision: 20/10

Flatness

Standard: λ/2 @633nm per 25mm
High Precision: λ[email protected] per 25mm

Chamfer

Protected <0.4mmx45deg

Coating

Uncoated, available

 


The frequently used AR coatings are as below:

 



 

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