Title:
ガラス製光学部品成形用金型並びにその金型を用いたガラス製光学部品の製造方法
Document Type and Number:
Japanese Patent JP6739131
Kind Code:
B2
Abstract:
In the conventional direct press method, it was difficult to control the weight of molten glass gob when manufacturing a small precision glass component and thus the weight of the glass gob varies widely. Accordingly, the problem is that the precise molding cannot be expected stably. As a solution, the present invention provides a mold for molding a glass-made optical component and a manufacturing method using the mold, the mold comprising: a female mold which has a lower mold of a molding mold for molding the glass-made optical component on an outer peripheral portion of a concave surface of the female mold; a male mold which has a convex surface combined with the concave surface of the female mold; and a ring mold which is arranged on an outer peripheral portion of the male mold, the ring mold having an upper mold of the molding mold for molding the glass-made optical component, wherein molten glass gob introduced into the concave surface of the female mold is configured to be pressed from above by the male mold having the convex surface so that the molten glass gob is injected into a space formed between the lower mold and the upper mold of the molding mold.
Inventors:
Tomohisa Maru
Shoji Odagawa
Kei Takahashi
Shoji Odagawa
Kei Takahashi
Application Number:
JP2020513981A
Publication Date:
August 12, 2020
Filing Date:
February 04, 2019
Export Citation:
Assignee:
Okamoto Glass Co., Ltd.
International Classes:
C03B11/00; G02B3/00
Domestic Patent References:
| JP2008257261A | ||||
| JP2009530135A | ||||
| JP62216928A |
Attorney, Agent or Firm:
Nakai Hijimi