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Kodial Zero Length
The viewports comprise a borosilicate glass optic which is sealed to a Kovar weld ring using an induction heater process. The optic assemblies are TIG welded into flanges and are helium leak tested and cleaned for ultra high vacuum (UHV) conditions.
- Description
- Specifications
- Transmission Curve - Fused Silica
- Additional Details
- Options
Description
The CF versions are offered using 304L or 316LN stainless steel flanges. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. The rugged construction of the Kodial viewports allows repeated bake-out with UHV performance, whilst the window offers broadband optical transmission from the visible to near infra-red. Anti-reflective coatings to match customer reflectance requirements are also processed at TSL. Please advise the wavelength or wavelength ranges of your application and a reflectance curve will be prepared. Non-standard viewports can be manufactured on request, including re-entrant style microscope/camera viewports. Annealed copper gaskets and other component accessories are also supplied by TSL.
| Property | Value |
|---|---|
| Seal Type | Induction |
| Maximum Temperature | 350 °C (KF versions 150 °C) |
| Minimum Temperature | minus 20 °C |
| Maximum Rate of Temperature Change | 3 °C per minute |
| Leak Rate | <1×10-10 atm-cc/sec (He) |
| Pressure Range | 1 bar to 1×10-11 mbar |
