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:
Dec. 20, 2011
Filed:
Oct. 23, 2008
Motohiro Suyama, Hamamatsu, JP;
Atsuhito Fukasawa, Hamamatsu, JP;
Katsushi Arisaka, Los Angeles, CA (US);
Hanguo Wang, North Hills, CA (US);
Motohiro Suyama, Hamamatsu, JP;
Atsuhito Fukasawa, Hamamatsu, JP;
Katsushi Arisaka, Los Angeles, CA (US);
Hanguo Wang, North Hills, CA (US);
Hamamatsu Photonics K.K., Hammatsu-shi, Shizuoka, JP;
The Regents of the University of California, Oakland, CA (US);
Abstract
An electron tube of the present invention includes: a vacuum vessel including a face plate portion made of synthetic silica and having a surface on which a photoelectric surface is provided, a stem portion arranged facing the photoelectric surface and made of synthetic silica, and a side tube portion having one end connected to the face plate portion and the other end connected to the stem portion and made of synthetic silica; a projection portion arranged in the vacuum vessel, extending from the stem portion toward the photoelectric surface, and made of synthetic silica; and an electron detector arranged on the projection portion, for detecting electrons from the photoelectric surface, and made of silicon.