发明名称 |
PHOTOCHROMIC CONTACT LENSES AND METHODS OF MANUFACTURING |
摘要 |
Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.
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申请公布号 |
KR20050085481(A) |
申请公布日期 |
2005.08.29 |
申请号 |
KR20057010455 |
申请日期 |
2005.06.09 |
申请人 |
TRANSITIONS OPTICAL, INC. |
发明人 |
VAN GEMERT BARRY;KUMAR ANIL;MALLAK FRANK P.;WALTERS ROBERT W. |
分类号 |
B29D11/00;(IPC1-7):B29D11/00 |
主分类号 |
B29D11/00 |
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