Method for the continuous production of an optical transmission element
AssigneeSiemens Aktiengesellschaft
InventorUlrich Oestreich
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Abstract
A method for the continuous production of an optical transmission element, which comprises a fiber received in a hose-like casing, characterized by applying a hose-like casing to a fiber to form an optical transmission element, heating the element, passing the element around a storage drum or drum with a sufficient number of loops to obtain the desired relationship between the fiber and casing, withdrawing the element from the storage drum or drum, cooling the withdrawn element to form a finished element and then winding the finished element on a reel or spool. Preferably, the storage drum or drum includes a conical support surface so that each succeeding loop of the element has a slightly smaller diameter and is guided axially on the support surface.
Claims3
A method for the continuous production of an optical transmission element comprising a light waveguide fiber loosely received in an hose-like casing with the fiber having an excess length relative to the length of the casing, said method comprising the steps of pulling the fiber from a storage reel;
- controlling the speed of removal from the reel by applying a braking force to the reel;
- surrounding the fiber with a hose-like casing to form an optical transmission element;
- heating the element to a temperature, which is required for creating a necessary excess length between the casing and the fiber;
- passing the heated element around a tempered drum with a sufficient number of loops so that the hose-like casing and the light waveguide fiber are tightly coupled to one another due to friction and as a consequence of the friction, the speed of the casing on a support surface of the drum is the same as the fiber speed as the element is removed from the drum;
- removing the element from the drum;
- cooling the removed element to form a finished element;
- and then winding the finished element on a spool.
Dependencies are inferred from the claim text.