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:
Oct. 07, 2025
Filed:
Nov. 30, 2020
Applicant:
Hamamatsu Photonics K.k., Hamamatsu, JP;
Inventors:
Assignee:
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/244 (2006.01); H01J 37/18 (2006.01); H01J 37/28 (2006.01);
U.S. Cl.
CPC ...
H01J 37/244 (2013.01); H01J 37/18 (2013.01); H01J 37/28 (2013.01);
Abstract
A light emitter is a light emitter for converting incident electrons into light, and includes a multiple quantum well structure for generating the light by incidence of the electrons, and an electron incident surface provided on the multiple quantum well structure. A certain barrier layer included in a plurality of barrier layers constituting the multiple quantum well structure is thicker than another barrier layer included in the plurality of barrier layers and located on the electron incident surface side with respect to the certain barrier layer.