| 发明名称 |
OPTICAL INSTRUMENT AND OPTICAL ELEMENT THEREOF |
| 摘要 |
<p>An optical instrument is described in which a diffractive element (25) is located at a focal or image plane (3) of the instrument and the diffractive element (25) is effective to produce an array (6) of a plurality of exit pupils at a viewing position for the instrument and thereby to form an enlarged exit pupil for the instrument.</p> |
| 申请公布号 |
EP0650606(B1) |
申请公布日期 |
1999.12.15 |
| 申请号 |
EP19940905777 |
申请日期 |
1994.02.02 |
| 申请人 |
FREEMAN, ROBIN JOHN |
发明人 |
FREEMAN, ROBIN JOHN |
| 分类号 |
G02B21/00;G02B27/00;G02B27/02;G02B27/44;(IPC1-7):G02B27/00 |
主分类号 |
G02B21/00 |
| 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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