专利检索 cpc:"H01J2237/251120130101" 第 1 页

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发明授权
VARIABLE REDUCTION RATIO SPHERICAL ABERRATION CORRECTION ELECTROSTATIC LENS, WIDE ANGLE ENERGY ANALYZER, AND TWO-DIMENSIONAL ELECTRON SPECTROMETER 有权

公开(公告)号：EP3792950B1

公开(公告)日：2024-09-04

申请号：EP19799637.4

申请日：2019-05-08

IPC分类号： H01J49/06 , G01N23/227 , H01J37/244 , H01J37/252 , H01J49/46

CPC分类号： H01J37/252 , G01N23/227 , H01J37/244 , H01J2237/251120130101 , H01J2237/252220130101 , H01J2237/244920130101 , H01J2237/2448520130101 , H01J49/06 , H01J49/46