| 发明名称 |
MULTIFOCAL CONTACT LENSES HAVING A PINHOLE |
| 摘要 |
The invention provides a multifocal lens that incorporates a substantially opaque ring. The lens design minimizes or eliminates ghosting of images. Additionally, the lens' performance on eye is more predictable than oth er progressive multifocal designs.
|
| 申请公布号 |
CA2489744(A1) |
申请公布日期 |
2005.06.19 |
| 申请号 |
CA20042489744 |
申请日期 |
2004.12.10 |
| 申请人 |
JOHNSON & JOHNSON VISION CARE, INC. |
发明人 |
ROFFMAN, JEFFREY H. |
| 分类号 |
G02C7/04;G02C7/06;(IPC1-7):G02C7/04 |
主分类号 |
G02C7/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
