WINDOWS & SUBSTRATES OF THE HIGHEST PRECISION
Substrates are components (plano-plano parallel polished components, lenses, prisms, filters, etc.) made of different materials that serve as the base to be coated to produce products like beamsplitters, mirrors, and windows, for example.
Windows are transparent, mostly plano-plano parallel polished and/or coated components that are used in optical systems to achieve highly-efficient, distortion-free light and perfect image transmission.
Examples of Products:
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Plano parallel windows
-
Protective windows
-
Laser line windows that feature an antireflective coating
-
Optical flats
-
Substrates for microlithography
-
Brewster or elliptical windows
Windows & substrates are available as:
|
Supply Forms
|
Diameter
|
Examples of Products:
-
Plane parallel windows
-
Protective windows
-
Laser line windows that feature an anti-reflective coating
-
Optical flats
-
Substrates for microlithography
-
Brewster or elliptical windows
|
from 2 mm to 625 mm |
Materials Used
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Optical glasses
-
Technical glasses
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Filter glasses
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Fused silica
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ZERODUR® extremely low expansion glass ceramic
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Sapphire and other crystals
Manufacturing Capabilities
|
Attribute
|
Commercial Quality
|
Precision Quality
|
Ultra-Precision Quality
|
|
Diameter |
From 2 mm to 625 mm |
|
Diameter tolerance |
± 0.25 mm |
± 0.050 mm |
± 0.005 mm |
|
Thickness tolerance |
± 0.20 mm |
± 0.040 mm |
± 0.020 mm |
|
Parallelism |
< 3 arc minutes |
< 1 arc minute |
< 10 arc seconds |
|
Surface accuracy |
2λ |
λ/4 |
λ/20* |
|
Surface quality (scratch & dig) |
80/50 |
60/40 |
10/5 |
|
Surface roughness |
5 nm |
2 nm |
5Ä rms |
|
AR coating |
Ravg < 1.5% |
Ravg < 0.5% |
Custom designed |
|
Order quantity** |
From 1 piece to serial production |
|
Delivery time** |
4 – 6 weeks |
4 – 6 weeks |
4 – 10 weeks |
* Depending on the geometry.
** Depending on the customer’s specifications. Please contact us.
Please find below a list of related information:
SCHOTT アドバンスド (日本語)
SCHOTT Careers
SCHOTT TGS