Product Description

Limete Vacuum provides sapphire vacuum observation windows UV, while LMT uses patented vacuum welding technology to produce sapphire and titanium observation windows. The diameter of the sapphire observation window can reach 3 inches, and the baking temperature can reach 450 degrees Celsius. The transmission range of a 0 degree/90 degree single crystal sapphire window is 250 nanometers to 4 micrometers.

Technical parameters of sapphire vacuum observation windows (Viewports):

Model: CF16 CF20 CF25 CF35 CF50 CF63 CF100

Leakage rate:<2 × 10-10 atm cc/sec He

Parallelism:<3 Arc Minutes

Flange material: Ti

Surface polishing degree: 20/10

Heat range: -100 ˚ C-450 ˚ C

Material: Sapphire

UV sensitivity: 70% @ 250nm (external)

Positioning/direction: 0-90 °

The UV flange of sapphire vacuum observation windows (Viewports) is developed using all titanium material, with a leakage rate of less than 2 × 10-10 atm cc/sec helium gas, suitable for high vacuum and ultra-high vacuum environments.