QUARTZ GLASS TUBE AS A SEMI-FINISHED PRODUCT FOR AN OPTICAL COMPONENT AND A METHOD FOR PRODUCING SAID QUARTZ GLASS TUBE

摘要

It is known that quartz glass tube has an inner hole to receive core bar and tube wall confined surfaces by inner casing and case surface along the pipe that central axis extends as semi-finished product for optical element; The first interior zone made of the tube wall quartz glass and perimeter are surrounded by contacting with each other in the second inside quartz glass region, in a contact surface, are wound on central axis, the first quartz glass, secondly quartz glass has different refractivity. In quartz glass, on this basis, in order to provide a kind of optical component easy to produce, for special purposes, such as laser activation optical component is constituted in stick or fiber, the present invention indicates that this contact surface has a non-circular path in radial cross-section and inner housing surface circular course.