Title:
METHOD AND APPARATUS FOR MANUFACTURING GLASS FINE PARTICLE DEPOSIT
Document Type and Number:
Japanese Patent JP2023017290
Kind Code:
A
Abstract:
To prevent the constriction of a glass fine particle deposit from being formed when manufacturing the glass fine particle deposit to reduce a possibility of breaking the glass fine particle deposit.SOLUTION: A method for manufacturing a glass fine particle deposit which deposits glass fine particles on the tip of a seed rod in the axis direction to form the glass fine particle deposit comprises: the initial pulling control step of pulling the glass fine particle deposit with a preset pulling speed pattern; and the regular pulling control step of pulling the glass fine particle deposit so as to intercept a laser beam by the tip part of the glass fine particle deposit to fix the amount of light received of the laser beam after the initial pulling control step. The regular pulling control step includes a transition stage until fixing the amount of light received of the laser beams at first, and the variation per minute of the pulling speed of the glass fine particle deposit in the transition stage is smaller than the pulling speed of the initial pulling control step just before the regular pulling control step.SELECTED DRAWING: Figure 2
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Inventors:
TAKASAKI TAKU
Application Number:
JP2021121442A
Publication Date:
February 07, 2023
Filing Date:
July 26, 2021
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
C03B8/04; C03B37/018
Attorney, Agent or Firm:
Patent Attorney Corporation Shinei Office
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