发明名称 |
RADIATION FOCUSSING ELEMENT |
摘要 |
The or at least one surface of a reflective or transmissive radiation focussing element is provided with at least one phase or amplitude diffraction grating that is distorted substantially according to a quadratic function. The surface or the opposed surface may also be provided with an aperture. The element is useful in three dimensional imaging and wavefront sensing systems. |
申请公布号 |
EP1573370(A1) |
申请公布日期 |
2005.09.14 |
申请号 |
EP20030786116 |
申请日期 |
2003.12.12 |
申请人 |
QINETIQ LIMITED |
发明人 |
ERRY, GAVIN ROBERT GEOFFREY;HARRISON, PAUL;SCOTT, ANDREW MAXWELL |
分类号 |
G01J9/00;G02B27/44;(IPC1-7):G02B5/18 |
主分类号 |
G01J9/00 |
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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