Title:
ガラス成形体の製造方法
Document Type and Number:
Japanese Patent JP5565265
Kind Code:
B2
Abstract:
In a method of manufacturing a glass molding, a lower mold includes a recess having a bottom portion and a side portion surrounding the bottom portion, and an outer peripheral planar portion surrounding an upper end of the side portion. A crossing angle between the side portion and the outer peripheral planar portion is set at more than or equal to 45 degrees. A dropping volume of the molten glass drop is such that, when dropped onto the lower mold, a volume of the molten glass drop located above the outer peripheral planar portion is 1.5 times to 6.0 times the volume of the molten glass drop filling the recess.
Inventors:
Kazuyuki Ogura
Application Number:
JP2010237289A
Publication Date:
August 06, 2014
Filing Date:
October 22, 2010
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
C03B11/08; C03B11/00; G02B3/00
Domestic Patent References:
| JP2005320199A | ||||
| JP2010083724A | ||||
| JP8040726A |
Attorney, Agent or Firm:
Fukami patent office