Apparatus for producing optical fiber

Details Apparatus for producing optical fiber Apparatus for producing optical fiber

1977-07-13

1978-10-31

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 2, 65 12, 65 13, 65 29, 65164, 65DIG7, 356 73, C03B 3702

Patent

active

041232429

ABSTRACT:
Apparatus for producing an optical fiber including apparatus for heating an optical fiber preform, apparatus for drawing out the optical fiber from the optical fiber preform whose fore end part has been made molten by the heating and for taking up the drawn out fiber, apparatus for causing a gas to flow along the outer peripheral surface of the molten part of the optical fiber preform, and apparatus for controlling both the flow rate of the gas and the drawing-out speed of the optical fiber according to a fluctuation in the diameter of the optical fiber. The controlling apparatus includes (i) a fiber diameter detector and a fiber diameter measuring device which detect and measure the diameter of the optical fiber drawn out, (ii) a fiber diameter controlling circuit which receives an output of the fiber diameter measuring device and a reference value for specifying a fiber diameter and which compares them so as to deliver an output for controlling the fiber diameter, (iii) a gas flow rate controller which is driven by the output for controlling the fiber diameter, and (iv) a take-up speed controller which is driven by the output for controlling the fiber diameter. With this apparatus, the optical fiber of uniform diameter can be easily produced.

REFERENCES:
patent: 3879128 (1975-04-01), Presby
patent: 3890127 (1975-06-01), Siegmund
patent: 4030901 (1977-06-01), Kaiser

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