Title:
ガラス成形体の製造方法および光学素子の製造方法
Document Type and Number:
Japanese Patent JP4222778
Kind Code:
B2
Abstract:
A process for stably and efficiently producing quality glass articles such as preforms at high yields, and a process for producing an optical device from the preform obtained by the above process. In the process for producing a glass article, molten glass gobs having a predetermined weight each are poured, or molten glass drops having a predetermined weight each are dropped through a nozzle, into a boiling liquid having a boiling point lower than the class transition temperature of the glass constituting said glass article or a liquid which is temperature-adjusted beforehand so as to be caused to boil by the amount of heat of the glass, to form glass articles.
Inventors:
Akira Murakami
Katsumi Utsuki
Yoshinori Iguchi
Masahiro Yoshida
Shinkuma Yoshihisa
Atsushi Watanabe
Katsumi Utsuki
Yoshinori Iguchi
Masahiro Yoshida
Shinkuma Yoshihisa
Atsushi Watanabe
Application Number:
JP2002155065A
Publication Date:
February 12, 2009
Filing Date:
May 29, 2002
Export Citation:
Assignee:
HOYA CORPORATION
International Classes:
C03B11/00; C03B7/00; C03B19/00; C03B7/10; C03B7/12; C03B19/10; C03B40/00
Domestic Patent References:
| JP10291824A | ||||
| JP1119522A | ||||
| JP7041328A | ||||
| JP5147949A |
Foreign References:
| WO2003055812A1 |
Attorney, Agent or Firm:
Shizuo Nakamura