Title:
DEVICE FOR MOLDING TORIC CONTACT LENS
Document Type and Number:
WIPO Patent Application WO/2005/054931
Kind Code:
A1
Abstract:
A novel device and method for molding a toric contact lens, capable of stably setting, with high accuracy, the angle of a toric axis. The position, about an axis (43), of a lens molding female mold (34) formed by molding a resin by using a female mold forming metal mold (30) is specified based on information obtained from the female mold forming metal mold (30), and the position, about the axis (43), of a lens molding male mold (36) formed by molding a resin by using a male mold forming metal mold (32) is specified based on information obtained from the male mold forming metal mold (32). Then, the lens molding female mold (34) and the lens molding male mold (36) are assembled with a specific relative positional relationship in the circumferential direction kept between the molds, defining a lens forming cavity (38) between mold assembly surfaces of the female mold (34) and the male mold (36). A toric contact lens (10) with a toric rear surface and the ballast front surface is molded in the lens forming cavity (38).
Inventors:
YAMASHITA KEIJI (JP)
HIBINO SHINGO (JP)
HIBINO SHINGO (JP)
Application Number:
PCT/JP2004/015682
Publication Date:
June 16, 2005
Filing Date:
October 22, 2004
Export Citation:
Assignee:
MENICON CO LTD (JP)
YAMASHITA KEIJI (JP)
HIBINO SHINGO (JP)
YAMASHITA KEIJI (JP)
HIBINO SHINGO (JP)
International Classes:
G02C7/04; B29C39/02; B29C39/26; B29L11/00; (IPC1-7): G02C7/04; B29C39/02; B29C39/26
Foreign References:
| JPH1138368A | 1999-02-12 | |||
| JP2002522249A | 2002-07-23 | |||
| JP2003527260A | 2003-09-16 |
Attorney, Agent or Firm:
Kasai, Yoshitaka (Sanyoku-Bldg. 345-5, Kohmeich, Tsu-shi Mie 06, JP)
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