| 发明名称 |
ELECTRON MICROSCOPE (COMPRISING AN AUXILIARY LENS) |
| 摘要 |
<p>A switchable auxiliary lens is arranged in the vicinity of the objective lens of an electron microscope to enable switching between TEM mode and STEM mode. The auxiliary lens is formed notably by an interruption in the magnetic circuit off one of the poles of the main lens, possibly in conjunction with an electromagnetic coil which can be excited in a commutatable manner.</p> |
| 申请公布号 |
CA1110781(A) |
申请公布日期 |
1981.10.13 |
| 申请号 |
CA19780304092 |
申请日期 |
1978.05.25 |
| 申请人 |
N.V. PHILIPS'GLOEILAMPENFABRIEKEN |
发明人 |
LE POOLE, JAN B.;VAN DER MAST, KAREL D.;RAKELS, CHRISTIAAN J. |
| 分类号 |
H01J37/04;H01J37/141;H01J37/21;H01J37/26;(IPC1-7):01J37/26 |
主分类号 |
H01J37/04 |
| 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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