[vc_row][vc_column width=”1/1″][vc_single_image image=”436″ alignment=”center” img_link_target=”_self” img_size=”900×400″][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_column_text]Schoonover offers many different types of vacuum viewports for a number of different materials such as:
- Fused Silica
- Glass
- Sapphire
- Magnesium Fluoride
- Calcium Fluoride
- Zinc Selenide
- BBAR Coated Fused Silica
- Corning HPFS Fused Silica
- UV Fused Silica
- EUV Fused Silica (Excimer Grade)
We offer vacuum viewports with viewable areas up to 3 inches. Flanges can be weldable, ConFlat or Quick Flange (NW, KF & QF). We also offer custom capabilities that include pressure & temperature options. Also vacuum viewports with different optical finishes such as surface polish, flatness, parrallelism, clear aperature, wedge angle, focal length and thickness.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_tabs title=”Types of Viewports Offered” interval=”0″][vc_tab title=”Glass” tab_id=”1391744697-1-32″][vc_column_text]Zero length 7056 glass viewports are available in NW, ISO and CF flange versions and feature a one-piece welded construction.[/vc_column_text][/vc_tab][vc_tab title=”Fused Silica” tab_id=”1391744697-2-86″][vc_column_text] A Fused Silica Vacuum Viewport can have viewable areas up to 8 inches and bakeable to 200 C. Fused Silica windows have excellant transmission ranges from 193 nm to 2 microns. Fused Silica viewports are also available in Ultra-Violet Fused Silica and DUV and BBAR Coated Fused Silica designs.[/vc_column_text][/vc_tab][vc_tab title=”Saphire” tab_id=”1391744789743-2-1″][vc_column_text]Sapphire Viewports can have viewable areas up to 3 inches and bakable to 450 C. Single crystal, sapphire windows with either 0 degree or 90 degree orientation, offer excellent transmission from 193 nm to 4 microns.[/vc_column_text][/vc_tab][vc_tab title=”Fused Quartz” tab_id=”1391745106817-3-1″][vc_column_text]Zero length fused quartz viewports are available in NW-40 and 50 flange versions and are an o-ring (Viton) sealed assembly, using the standard NW clamp. The quartz window is easily replaced if damaged[/vc_column_text][/vc_tab][vc_tab title=”Extended Range UHV” tab_id=”1391745140192-4-2″][vc_column_text]These extended range ultra-high vacuum viewports have a view diameter of 1″ for the 2/34″ and 2″ for the 4 1/2 CF Flanges. Coatings enhance the transmission performance of many of these viewports. Thermal rating of -100 to 200 C.[/vc_column_text][/vc_tab][vc_tab title=”Laser Optics” tab_id=”1391745164156-5-7″][vc_column_text]Laser Optics viewports for 780nm excimer laser, 780 nm diode laser and , 248nm & 193nm YAG Lasers. Material is HPFS 7980 Fused Silica[/vc_column_text][/vc_tab][vc_tab title=”Differentially Pumped” tab_id=”1391746152033-6-10″][vc_column_text]Our differentially pumped viewports provide a pump port to evacuate the region between the seals so that the minute leakage through atmospheric seal is decades less to ensure the leakage through the inner seal is reduced by several orders of magnitude.[/vc_column_text][/vc_tab][vc_tab title=”Viewport Shutters” tab_id=”1399581234952-7-2″][vc_column_text]Vacuum Viewport Shutters on a CF Flange to shield the viewport and prevent the build-up of deposition materials[/vc_column_text][/vc_tab][/vc_tabs][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_single_image image=”2371″ border_color=”grey” img_link_target=”_self” img_size=”full”][/vc_column][/vc_row]
