CPC C03B 37/032 (2013.01) [C03B 23/047 (2013.01); C03B 37/02 (2013.01); C03B 37/15 (2013.01); G02B 6/0046 (2013.01); G02B 6/0058 (2013.01)] | 19 Claims |
1. A drawn glass element for producing glass optical waveguides, comprising:
two first length portions with a first cross-sectional area and which define the two ends of the glass element;
an intermediate length portion between the two first length portions, which has a second cross-sectional area smaller than the first cross-sectional area;
a first transition portion between the intermediate length portion and one of the first length portions; and
a second transition portion between the intermediate length portion and another of the first length portions, wherein the first and second transition portions have a cross-sectional area that steadily changes and merges from the first cross-sectional area into the second cross-sectional area,
wherein the first and second transition portions have a central third, wherein the central third has a cross section (A) that increases more slowly than a function
![]() wherein l is a length coordinate in mm, A1 is a first second cross-sectional area in mm2, A2 is a second cross-sectional area mm2, lu is a length of the first and second transition portions in mm, and l0 is a length coordinate of a midpoint of the first and second transition portion in mm.
|