BK7 Window high quality and low price for prototype and volume production at RedOptronics.com

   
   

 

 
 

BK7 Windows

Optics >>> 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. 

Red Optronics offers High Precision BK7 windows in both round and rectangular form with an improved parallelism of 10 arc seconds.  High Precision BK7 Windows are available for small quantity R&D projects as well as large production runs. 
 

Main Specifications
  Super Precision High Precision Standard Precision
Material

BK7 grade A optical glass

Diameter Tolerance

+0/-0.10mm

Thickness Tolerance

0.10mm

Clear Aperture > 85%
Flatness ( @633nm) l /10 l /4 1 l per 25mm 
Parallelism <10 arc seconds <30 arc seconds <1 arc minutes
Surface Quality (S/D) 20/10 40/20 60/40
Bevel 0.25mm x 45
Coating

Available upon request

Standard Products
Part No.
Diameter (mm)
Thickness (mm)
WIN-1101

10.0

3.0

WIN-1102

12.7

3.0
WIN-1103
15.0

3.0

WIN-1104

25.4

3.0

   

   

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