Larson Electronic Glass standard length viewport is
available in a 5/8” nominal view. The length of the weld
sleeve dictates that it be mounted as a standard length
window as opposed to the zero length. Windows are
silver-brazed to a Kovar® sleeve. They are offered as
weldable, in CF type flanges for use below
1x10-11, or ISO type Kwik-Flange® or for
intermediate vacuum ranges.
Sapphire Window surfaces which are extremely hard and
scratch resistant offer a minimum of distortion and
provide maximum light transmission suitable for most
applications. UV grade viewports have a 90° crystal
orientation normal to the optical axis.
Larson Electronic Glass offers "Standard Length Sapphire
Viewports" available in 1 standard size of 5/8 inch with
a variety of flange options. Dimensions are in inches
unless otherwise noted.