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.
Patent No.:
Date of Patent:
Feb. 06, 2024
Filed:
Sep. 03, 2021
Applicant:
Hamamatsu Photonics K.k., Hamamatsu, JP;
Inventors:
Tsuyoshi Kodama, Hamamatsu, JP;
Masaki Yamada, Hamamatsu, JP;
Shinichi Hara, Hamamatsu, JP;
Naoki Umebayashi, Hamamatsu, JP;
Assignee:
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 47/02 (2006.01); H01J 40/04 (2006.01); H01J 40/06 (2006.01); H01J 40/16 (2006.01);
U.S. Cl.
CPC ...
H01J 47/02 (2013.01); H01J 40/04 (2013.01); H01J 40/06 (2013.01); H01J 40/16 (2013.01);
Abstract
A photoelectric tube includes a housing including a light transmitting portion, an electron emitting portion held by a recess provided in the housing, the electron emitting portion including a concave photoelectric surface facing a light transmitting portion side inside the housing, and an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing. At least a part of the electron capturing portion is located inside a region on an inside of the photoelectric surface.