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Sapphire Rectangular Windows
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Name:Sapphire Rectangular Windows
Dimensions:From 1 mm to 305 mm in any optical axis
Thickness:From 0.2mm up to 50mm
Flatness:Can Be λ/10 @633nm Or Better
Parallelism:Can Be As Tight As 10 Arc Second
Surface Quality:S/D 80/60~20/10 per MIL-PRT-13830
Quantity:Dia 80mm From 20pcs / Dia100 From 2pcs
Materials:Optical Grade Synthetic Sapphire Ky Method
Coating:Band pass, Cut off, AR, ETC...
Chamfer:As request angle or radius

Product Description

.Sapphire Rectangular Windows:

We can supply various standard sapphire windows From Common usages to High Precision Windows, Please let us know your applications if you don't know which standard you should choose.

Sapphire Windows Specifications: 

   Common Normal  High  Very High 
 Tolerance  ±0.1mm  ±0.1mm  ±0.05mm  ±0.01mm
 Surface Quality  S/D 80/50 S/D 60/40   S/D 40/20  S/D 20/10  
 Surface Flatness Random  λ/2 @ 633nm  λ/8 @ 633nm   λ/20 @ 633nm  
 Orientations  Random  ±5°   ±1° ±0.5° 

.Why Use Sapphire?

1.Excellent Moh's Hardness Upto 9H, Only Softer Than Diamond(10H), (Optical Glass 6~7)

2.Great Transmittance From 200nm~5000nm; AVG>85% @ Visible Light Freqency

3.No Attacked By Acid Or Alkalis, Only Attacked By HF At 300℃.

4.High Softening Point, Low Thermal Expansion.

5.Excellent Mechnical Properties.

We can also supply coating jobs, typical coating: AR/ Band Pass/ Cut off. 


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