Docter Optics GmbH offers precision-molded optical glass light pipes, which are employed for homogenizing, conducting and reshaping light for use in a variety of optical equipment and assemblies. According to the company, it can volume-produce the pipes in nearly any shape or size. The company develops custom pipes with a high slenderness ratio and, to simplify assembly, with a plano, ellipsoid, cylindrical, parabolic or other type of flange. The devices are available in lengths from 5 to 55 mm, in B270, F2, Duran and Pyrex glass as well as in customized optical and technical glass. Contour tolerances are >4 μm peak to valley (as a function of diameter).