Vacuum Viewports

Vacuum Viewports

High Vacuum Viewports
Ultra-High Vacuum Viewports

Fused Silica - Glass - Sapphire - Magnesium Fluoride - Calcium Fuoride - Zinc Selenide - BBAR Coated Fused Silica - Corning HPFS Fused Silica - UV Fused Silica - EUV Fused SIlica (Excimer Grade)

Schoonover is pleased to offer vacuum viewports in high vacuum and ultra-high vacuum for a wide range of vacuum applications. A number of window options are available to cover light wave frequencies required by many photonic applications.  Options such as anti-reflective coatings are available upon request.

The window sizing of vacuum viewports, with provided viewable areas, goes up to 3 inches. Flanges can be weldable, ConFlat or Quick Flange (NW, KF & QF). Custom capabilities include pressure & temperature options. Vacuum viewports with different optical finishes such as surface polish, flatness, parrallelism, clear aperature, wedge angle, focal length and thickness are also available.

 

Viewport

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Kodial Glass

Kodial glass viewports are manufactured from 304 stainless steel and alkali borosilicate 7056. Kodial glass allows for the operator to view a process, make measurements of emissions, and initiate chemical action from a specific wavelength. Usable to temperatures of 200°C.

Viewport Chart                                                                                                                                                                                                                                                                                                  Viewport Chart

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UV Fused Silica

Fused Silica Viewports are available with diameters up to 8 inches and include zero length designs for low profile applications. These are all bakeable to 200˚C. Several standard grades of Fused Silica windows are offered and have excellent transmission from 193nm to 2 microns.

UV Fused Silica Chart

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DUV Fused Silica

Deep (DUV) Fused Silica Viewports are available with diameters up to 8 inches and include zero length designs for low profile applications. These are all bakeable to 200˚C. Several standard grades of Fused Silica windows are offered and have excellent transmission from 193nm to 2 microns.

DUV Fused Silica

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EUV Fused Silica

Eximer (EUV) Fused Silica Viewports are available with diameters up to 8 inches and include zero length designs for low profile applications. These are all bakeable to 200˚C. Several standard grades of Fused Silica windows are offered and have excellent transmission from 193nm to 2 microns.

EUV Fused Silica Excimer Grade

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UV Sapphire

UV Sapphire viewports come with view diameters up to 3 inches, and are bakeable to 450˚C. Single crystal, sapphire windows come with orientation either 0˚ or 90˚ and provide transmission from 250nm to 4 microns.  

UV Sapphire chart

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DUV Sapphire

DUV Sapphire viewports come with view diameters up to 3 inches, and are bakeable to 450˚C. Single crystal, sapphire windows come with orientation either 0˚ or 90˚ and provide transmission from 250nm to 4 microns.  

DUV Sapphire viewport

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Extended Range UHV

Ultra-high Vacuum (UHV) viewports use materials for windows such as Zinc Selenide, Magnesium Fluoride, and Calcium Fluoride. We offer metal sealed (CF Flange), extended-range optics in 1 inch and 2 inch view diameters with a combined range of transmission from 120nm to 20 microns. Coatings which enhance the transmission performance of many of these viewports are offered as standard options.

Extended range optics

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Laser Optics

Laser Optics Fused Silica Viewports pair a specific type of Fused Silica with a precise AR V-Coating specific to your laser wavelength. These viewports are bakeable to 200˚C. We have four standard wavelengths: 193nm, 248nm, 780nm, and 1064nm. If you need a wavelength, please contact Apex Vacuum and we will assist you to get the best performing viewport for your application.

Laser Optics

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BBAR Coated

BBAR Coated Viewports come with view diameters of up to 2.69 inches. Viewports are made from a BBAR Coated HPFS 7980 Fused Silica material. Viewports or vacuum windows can be specified with either 2.75” CF or 4.5 CF flanges.

BBAR Coated Fused Silica

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Differentially Pumped

Differentially Pumped Viewports come with view diameters of up to 1.88 inches, and are bakeable to 200˚C. Viewports are AR Coated Zinc Sulfide (Cleartran™) transmission range 8-12 microns. Viewports or vacuum windows can be specified with either 2.75” CF or 4.5 CF flanges.

Diff Pump viewport

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Non-Magnetic

Our non-magnetic viewport selection includes those manufactured with non-magnetic Stainless Steel or All-Titanium. All connections to the vacuum system are Con-Flat for the best seal. Choices range from 200˚C to 450˚C for bakeout temperatures, depending on glass type and coating (Sapphire or Fused Silica).

UV Fused Silica
UV Sapphire
EUV Fused Silica excimer grade
DUV Fused Silica

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Re-Entrant

Re-entrant Viewports come with view diameters of up to 2.7 inches, and are bakeable to 200˚C. All flange types are ConFlat, and all glass is made from fused silica. The stainless steel re-entrant tube is customizable in length for individual system needs.

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