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Borosilicate windows

Description

Low-expansion borosilicate glass (LEBG) is very suitable for windows, on account of its excellent chemical and thermal-shock resistance. We offer both 1.1mm windows made by the float process and thicker optically-polished windows.

Diameter

+0, -0.2mm

Thickness

±0.2mm (float)
±0.1mm (polished)

Flatness:

  Float

typ. 1λ over Ø10mm

  Polished

1λ over 90% of aperture dimensions

Scratch-dig    

60-40 See specifications for details

Parallelism

1 min.

Material

Low-expansion borosilicate glass See optical materials for details

For more details of your modification needs please enquire.

 
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Item code Dimensions (mm)Polished/Float Price per item
(£ GBP)
Stock available Volume
discount
available
Datasheets &
customisation
options
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63 GH 06 63 dia. x 6Polished £43.08
 
 
 
 
 
50 GH 50 50 x 50 x 1.1Float £14.76
 
 
 
 
 
50 GH 04 50 dia x 4Polished TBA
 
 
 
 
 
Send us a stock query
40 GH 03 40 dia x 3Polished £25.48
 
 
 
 
 
25 GH 03 25 dia x 3Polished £13.19
 
 
 
 
 
25 GH 01 25 dia x 1.1Float TBA
 
 
 
 
 
Send us a stock query
16 GH 03 16 dia x 3Polished £11.62
 
 
 
 
 
10 GH 02 10 dia x 2Polished £11.62
 
 
 
 
 

For more information regarding stock availability icons, please see our shipping page.