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. 10, 2015
Filed:
Aug. 07, 2012
Katsuyuki Kinoshita, Hamamatsu, JP;
Katsuyuki Kinoshita, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
A steak tubehas a containerwith an entrance plateand an output plate; a photocathodedisposed in the containerand configured to emit electrons according to light to be measured, the light having been incident through the entrance plate; a mesh electrode, a first focusing electrode, and an aperture electrodeforming an axially symmetric electron lens for focusing the electrons emitted from the photocathode, toward the output plate; a sweep electrodedisposed in the containerand configured to sweep the electrons focused by the axially symmetric electron lens, in a sweep direction along the output plate; and a second focusing electrodedisposed between the entrance plateand the output platedand forming a one-dimensional electron lens for focusing the electrons in the sweep direction.