OVD apparatus including air-regulating structure
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsYuuji Tobisaka, Tadakatsu Shimada, Hiroshi Machida, Masataka Watanabe, Hiroshi Tsumura, Hideo Hirasawa
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Abstract
An apparatus for manufacturing a glass base material, which is a base material of an optical fiber, comprising: a base rod, around and along which said glass base material is formed; a burner that hydrolyzes and accumulates a gas material, which is a base material of said glass base material, around and along said base rod; a first burner-moving-unit that moves said burner in a direction parallel with a longitudinal direction of said base rod; and a second burner-moving-unit that moves said first burner-moving-unit in a same moving direction of said first burner-moving-unit.
Claims21
An apparatus for manufacturing glass base material, comprising:
- a chamber, which further comprises:
- a) a base rod, around and along which the glass base material is formed;
- b) a burner that hydrolyzes and accumulates a gas material around and along the base rod;
- c) a first burner-moving unit that moves the burner in a direction parallel with a longitudinal direction of the base rod;
- d) a second burner-moving-unit that moves the first burner-moving-unit in a same moving direction of the first burner-moving-unit;
- e) a duct that exhausts exhaust from inside the chamber, wherein the duct is provided along the longitudinal direction of the base rod for substantially whole length of the chamber;
- and
- f) a base having a flow regulating stricture which intakes outside air, thus regulating airflow flowing from the base to the duct, wherein the flow regulating structure is formed from a plate having a plurality of air holes.
Dependencies are inferred from the claim text.