Demountable ISO Viewports
Demountable Glass and Quartz Viewports
Accu-Glass’ demountable high transmission glass and quartz viewports are an economical “alternative” to typical fused glass or brazed quartz viewports. Transmission is greater than 90% over the 350nm to 1500nm wavelength range. Removable Accu-Sol™ glass and quartz substrates allows for subsequent application of optical coatings and viewport cleaning. For high temperature applications up to 250°C, Kalrez® elastomer O-ring seals are recommended. Demountable substrate viewports employ a unique recessed zero profile design... providing the widest viewing angles and maximum protection to glass and quartz substrates.
Features
- High transmission Glass or Quartz
- High Temperature rated to 150°C or up to 250°C with Kalrez® O-rings
- Stainless steel/aluminum construction
- Conflat® and ISO NW compatible mounts
- Custom Solutions on Request
Demountable Glass and Quartz Viewports
Accu-Glass’ demountable high transmission glass and quartz viewports are an economical “alternative” to typical fused glass or brazed quartz viewports. Transmission is greater than 90% over the 350nm to 1500nm wavelength range. Removable Accu-Sol™ glass and quartz substrates allows for subsequent application of optical coatings and viewport cleaning. For high temperature applications up to 250°C, Kalrez® elastomer O-ring seals are recommended. Demountable substrate viewports employ a unique recessed zero profile design... providing the widest viewing angles and maximum protection to glass and quartz substrates.
Features
- High transmission Glass or Quartz
- High Temperature rated to 150°C or up to 250°C with Kalrez® O-rings
- Stainless steel / aluminum construction
- Conflat® and ISO NW compatible mounts
- Custom Solutions on Request
Specifications
| Material | |
| Flanges, Stainless Steel | 304 |
| Retainer, Substrate | Aluminum |
| Substrate, Glass | Accu-Sol™ |
| Substrate, Quartz | Fused Silica |
| Seal, Elastomer | Viton® |
| Seal, High Temperature | Kalrez® 4079 |
| Vacuum Range 1 | |
| HV, High vacuum | 1x10E-8 Torr |
| Temperature Range 2 | |
| Seal, Viton® Elastomer | -20~150°C |
| Seal, Kalrez® 4079 | -20~250°C |
| Flange, CF (w/Out Seal, Glass) | 450°C |
| Flange, ISO NW | 150°C |
| T° Gradient, Max/Minute | 20°C |
| Transmission 3 | |
| Substrate, Uncoated | Accu-Sol™ |
| 305~2100nm | >90% |
| 2100~2680nm | >80% |
| Scratch-Dig, both faces | <40-20 |
| Transmission AR Coated 3 | |
| Substrate, Uncoated | Fused Silica |
| 200~2000nm, (average) | 70~95% |
| 290~370nm, UV | >99% |
| 350~700nm, Type-A | >99% |
| 650~1050nm, Type-B | >99% |
| 1050~1620nm, Type-C | >99% |
| Notes |
- Leak tested to 5x10-10 Standard cc/sec of He.
- Overall assembly ratings must be adjusted to that of its lowest rated component.
- Transmission curves are provided for reference only. Transmission for individual viewports may vary based on thicknesses, surface finish and/or other condition.
Windows with BBAR (broadband antireflective) coatings are coated on both substrate surfaces. - Unless specified otherwise, all dimensions are expressed in inches.