发明名称 Method of manufacturing a contact lens
摘要 Methods of manufacturing a contact lens form a mold which has a first section formed from a first material and a second section formed from a second material. The methods permit the facile preparation of contact lenses having two or more differing materials, for example, a composite lens, a bifocal lens, a trifocal lens and the like.
申请公布号 US5433898(A) 申请公布日期 1995.07.18
申请号 US19920944891 申请日期 1992.09.11
申请人 PILKINGTON BARNES HIND, INC. 发明人 THAKRAR, ASHOK R.;GANDHI, KHUSHROO
分类号 G02C7/04;B29C39/02;B29C39/10;B29C39/26;B29C69/00;B29D11/00;(IPC1-7):B29D11/00 主分类号 G02C7/04
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