Dental glass powders
Detecting optical fiber defects
Device for drawing a group of cladded light conducting fibers
Device for drawing an optical fibre
Device for manufacturing an object with chiralic structure from
Device for manufacturing optical fiber preforms
Device for performing measurements on a transparent object, meth
Device for providing a drawn fiber-like object with a helical st
Device for the production of an optical waveguide preform
Double crucible system for the production of light conducting fi
Dual strand packaging apparatus