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:
Sep. 03, 1991
Filed:
Jul. 11, 1990
Applicant:
Inventor:
Akira Takahashi, Shizuoka, JP;
Assignee:
Hamamatsu Photonics K.K., Shizuoka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315410 ; 2502 / ;
Abstract
An electron tube, such as a streak tube, is equipped with a gate element for gating unnecessary photoelectrons to prevent them from appearing as a pseudo output signal. A deflection voltage of main deflection plates (typically travelling-wave type) is delayed by a predetermined time and provided to the gate element. The gate element may be shifting deflection plates for sweeping the photoelectrons in a direction perpendicular to the main sweeping direction, a microchannel plate for multiplying the photoelectrons, or a photocathode.