Back to results
US 6,742,363 B1Granted
Straightening a glass rod for use in making an optical fiber preform
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsWaichi Yamamura, Mitsukuni Sakashita, Tadakatsu Shimada, Hideo Hirasawa
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a glass rod (106), which is a parent material of an optical fiber (350), comprising: adjusting a vertical inclination of a standard rod (138) having a predetermined straightness; and heating and elongating a base material (102), which is a parent material of the glass rod (106), along an axis of the standard rod (138), the vertical inclination of which is adjusted, to generate the glass rod (106).
Claims11
A method for manufacturing a glass rod, which is a parent material of an optical fiber, comprising:
- adjusting an axis of an apparatus for elongating a base material, which is a parent material of said glass rod, by adjusting a vertical inclination of a standard rod having a predetermined straightness, wherein the standard rod is placed in a hanging mechanism and an elongating mechanism of the device to adjust an axis;
- removing the standard rod;
- and
- heating and elongating said base material along an axis of said standard rod, said vertical inclination of which is adjusted, to generate said glass rod.
1 more element
Dependencies are inferred from the claim text.