Patent Application Titled "Aberration Correcting Device and Electron Microscope" Published Online (USPTO 20230268155).

Předmět:	PATENT applications ELECTRON microscopes PATENT offices INTERNET publishing TRANSMISSION electron microscopes OPTICAL aberrations
Zdroj:	Health & Medicine Week; 9/15/2023, p8475-8475, 1p
Abstrakt:	The aberration correcting device according to claim 1, wherein negative chromatic aberration is generated by an electromagnetic-field superposed quadrupole field generated by each of the plurality of fourth multipoles and an electromagnetic-field superposed quadrupole field generated by each of the plurality of fifth multipoles. The aberration correcting device according to claim 2, wherein four-fold astigmatism generated by generating six-fold astigmatism by the first transfer lens system and the second transfer lens system is corrected by an octupole field generated by the third multipole. "JP-A116219 discloses an optical system which corrects chromatic aberration by using two-stage quadrupole field superposing an electromagnetic field (quadrupole field in which an electric quadrupole field and a magnetic quadrupole field are superposed). [Extracted from the article]
Databáze:	Complementary Index
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