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Inventor: Bonewitz; Hans-Ulrich
Address: Hammersbach, DE
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5049175 |
Method of manufacturing a glass body having a non-uniform refractive index |
September 17, 1991 |
| A granular body, from which an article having a nonuniform refractive index may be formed, has grains of two substances which have different refractive indicies in a geometric distribution in the granular body corresponding to the geometric distribution of the substances required for |
| 4676814 |
Method for the continuous building of a hollow cylindrical soot body having no internal support |
June 30, 1987 |
| Disclosed is a method for the axial building up, in a vertical arrangement, of a hollow cylindrical soot body having no internal support and consisting substantially of silicon dioxide by means of at least one flame hydrolysis build-up burner serving for the soot production. In this meth |
| 4392715 |
Optical fiber |
July 12, 1983 |
| In an optical fiber having a core whose material consists essentially of vitreous silica, said core having a jacket of plastic which is optically effective at least on a length of 10 m reckoned from the light input end of the fiber and which has a refractive index n.sub.M which is smalle |
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