Larson Electronic Glass offers a selection of viewports with glass, fused silica, and sapphire windows. The three have different optical and physical properties suitable for a variety of different applications.
Glass provides a large distortion-free viewing area at a moderate cost. Fused silica is suitable for applications requiring good ultraviolet radiation transmission. Fused silica also offers superior resistance to thermal shock. Sapphire has superior IR transmission characteristics and is bakeable to 450°C.
Viewports are supplied in both the low profile Zero-Length configuration and Standard Length with extension collar. Nonmagnetic standard length glass viewports are also offered.
Most Viewport types are available in a choice of mountings including Tube, CF Type Flange, and ISO Kwik-Flange® or Large-Flange®.
All Viewports are supplied with window faces which have been finished to standards suitable for most applications. Custom viewports are available on special request.
Choice of vacuum seal: