| 
           
            Glen
            Spectra introduces a series of fibre optic vacuum feedthroughs for 
           end-point detection, plasma emission spectroscopy, and other applications. 
          
           Both single-fibre and 
           multi-fibre bundles are sealed within vacuum-tight flanges which are 
           designed to pass directly through vacuum chamber walls with maximum 
           helium leak rates of 10-11 cm3/sec (torr), and no additional optical 
           loss. The feedthroughs are helium leak tested and certified. Many 
           versions of the UV-Vis-NIR assemblies are available. 
          
              |