The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 17, 2020

Filed:

Feb. 03, 2017
Applicant:

Hitachi High-technologies Corporation, Minato-ku, Tokyo, JP;

Inventors:

Yoshifumi Sekiguchi, Tokyo, JP;

Shin Imamura, Tokyo, JP;

Hajime Kawano, Tokyo, JP;

Shahedul Hoque, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/20 (2006.01); H01J 37/26 (2006.01); H01J 37/244 (2006.01); H01J 37/28 (2006.01);
U.S. Cl.
CPC ...
H01J 37/244 (2013.01); H01J 37/28 (2013.01); H01J 2237/2443 (2013.01); H01J 2237/2445 (2013.01);
Abstract

The present invention provides a light guide capable of guiding light generated by a scintillator at high efficiency to a photoreceiving element, a detector, and a charged particle beam device. For attaining the purpose, the present invention proposes a light guide that guides light generated by a scintillator to a photoreceiving element, provided with a scintillator containment portion formed of a first surface facing a surface opposite to a charged particle incident surface of the scintillator and a second surface facing a surface different from the surface opposite to the charged particle incident surface of the scintillator, and a tilted surface reflecting light incident from the second surface to the inside of the light guide.


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