发明授权
- 专利标题： Methods for producing progressive addition lenses
- 专利标题（中）： 渐进附加镜片的制造方法
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申请号： US315477申请日： 1999-05-20
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公开(公告)号： US6123422A公开(公告)日： 2000-09-26
- 发明人: Edgar V. Menezes , James S. Merritt , William Kokonaski
- 申请人： Edgar V. Menezes , James S. Merritt , William Kokonaski
- 申请人地址： FL Jacksonville
- 专利权人： Johnson & Johnson Vision Care, Inc.
- 当前专利权人： Johnson & Johnson Vision Care, Inc.
- 当前专利权人地址： FL Jacksonville
- 主分类号： G02C7/06
- IPC分类号： G02C7/06 ; A61F2/14 ; B29D11/00 ; G02B3/10 ; G02C7/02 ; G02C7/04
摘要：
The invention provides progressive addition lenses in which lens unwanted astigmatism is reduced and channel width through the intermediate and near vision zones is increased as compared to conventional progressive addition lenses. This result is achieved by combining two or more progressive addition surfaces, which surfaces in combination provide the dioptric add power of the lens.
公开/授权文献
- US5071561A Ammonia removal from mammalian cell cultures 公开/授权日：1991-12-10
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