Quartz glass from Heraeus Quarzglas GmbH.

A crucial prerequisite for optical glass, homogeneity describes a state, in which the optical and compositional properties of a substance are uniform through its entire material volume. It is expressed as the maximum variance in refractive power within a given piece of glass.

means one or more strongly reflecting layers that cause superposition and intensification of reflected radiation in order to obtain increased reflectance. Both metal and dielectric layers can be selected as HR material.

means one or more strongly reflecting layers that cause superposition and intensification of reflected radiation in order to obtain increased reflectance. Both metal and dielectric layers can be selected as HR material.