Title:
継ぎ目無しオフサルミックレンズ及びその製造方法
Document Type and Number:
Japanese Patent JP2004519717
Kind Code:
A
Abstract:
Methods for producing a junctionless ophthalmic lens are provided. Additionally, ophthalmic lenses having junctionless, three dimensional surfaces, for example, asymmetrical anterior and/or posterior surfaces, as well as molding tools used in the production of such lenses, are also provided. The method generally include providing sample data points to define a surface contour, and interpolating between these data points using an algorithm to produce a simulated three dimensional surface. The simulated three dimensional surface is used in producing an ophthalmic lens, for example, in cast molding a contact lens.
Inventors:
Ho arthur
Back arthur
Back arthur
Application Number:
JP2002569989A
Publication Date:
July 02, 2004
Filing Date:
November 07, 2001
Export Citation:
Assignee:
Ocular Sciences Inc.
International Classes:
A61F2/16; A61F9/007; B29C39/02; B29C39/44; B29D11/00; G02C7/04; B29L11/00; (IPC1-7): G02C7/04; A61F9/007; B29C39/02; B29C39/44
Domestic Patent References:
| JP2000198126A | 2000-07-18 | |||
| JP2000199876A | 2000-07-18 | |||
| JP2000075251A | 2000-03-14 | |||
| JPH11258553A | 1999-09-24 |
Foreign References:
| WO1997034185A1 | 1997-09-18 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda