Product Description

Limete Vacuum provides quartz glass vacuum observation windows DUV, while MPF uses patented vacuum welding technology to produce sapphire and quartz observation windows. The diameter of the quartz observation window can reach 8 inches (including zero length quartz observation windows designed for basic applications), and the baking temperature can reach 200 degrees Celsius. The transmission range of quartz windows is 193 nanometers to 2 micrometers.

Technical parameters of quartz glass vacuum observation windows (Viewports):

Model: CF16 CF35 CF63 CF100 CF150 CF200

Leakage rate:<2x10 (-10) atm cc/sec helium gas

Parallelism:<10 Arc Minutes

Flange material: 304/316 stainless steel

Flatness: l/4 @ 632nm Transmitted Wavefront

Surface polishing degree: 20/10

Heat range: -100 ˚ C-200 ˚ C

Material: Corning HPFS 7980 Fused Silica

Sensing: ≥ 99.8% @ 248nm (internal)

Uniformity level: A

Impurity level: 0

Observation window, fused silica, deep ultraviolet (DUV), window 1.4, CF275

Laser grade quartz window, baking temperature up to 200 degrees Celsius, non-magnetic material, transmission range in high vacuum up to 248 nanometers, zero length type, suitable for ultra-high vacuum