| 发明名称 |
Evaluating system for a dual focus lens |
| 摘要 |
An lens evaluating system for evaluating a dual-focus lens is disclosed. The lens evaluating system is provided with an interferometer to form an image of interference fringes and a masking system which masks a part of the image corresponding to a noise component.
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| 申请公布号 |
US6018393(A) |
申请公布日期 |
2000.01.25 |
| 申请号 |
US19970899721 |
申请日期 |
1997.07.24 |
| 申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
TAKISHIMA, SUGURU;KASE, TOSHIYUKI |
| 分类号 |
G01M11/02;(IPC1-7):G01B9/02 |
主分类号 |
G01M11/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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