CF Flanged Differentially-Pumped Cleartran

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Description

 

Lesker - CF Flanged Differentially-Pumped Cleartran™ Viewports

 

 

CF Flanged Optical Glass Viewports Features:

  • Built from the highest-quality materials to UHV standards
  • Compatible with vacuum systems capable of reaching UHV levels
  • If the process deposits material, Kurt J. Lesker / Premier Solutions strongly recommend a viewport shutter because deposits can damage and impair the optical properties of the lens.

Zinc Sulfide (Cleartran™) Features:

  • Leak Rate <2x10-10 atm cc/sec He
  • Parallelism <3 Arc Minutes
  • 304L Stainless Steel Flange
  • Flatness λ/4
  • Bakeout Temperature to 200°C
  • Surface Finish 40/20
  • AR Coated (8-12 Microns)

CAUTION: safety, Kurt J. Lesker / Premier Solutions strongly recommend that no viewport is exposed to a temperature ramp of greater than 2-3°C per minute, and that no viewport be exposed to direct thermal radiation. To limit thermal gradients when heating viewports, we recommend the viewing area and the flange be covered with many layers of aluminum foil to act as a reflective shield.

 

Dimensional Drawings

 

Charts

 

 

Premier Solutions Pte Ltd / Lesker CF Flanged Differentially-Pumped Cleartran™ Viewports

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