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:
Mar. 31, 1992
Filed:
Dec. 03, 1990
Katsuyuki Kinoshita, Hamamatsu, JP;
Motohiro Suyama, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
A streak camera for detecting a light signal representing optical events occurring in ultra-short time intervals, comprising a photocathode, an accelerating electrode, a focusing electrode, an anode, a traveling wave deflector having a deflecting electrode for deflecting photoelectrons emitted from the photocathode with a deflection voltage having a phase velocity, a deflection circuit for controlling the deflection voltage to be applied to the deflecting electrode of the deflector, an electron stream detector having for detecting the electron stream deflected by said deflector, and a voltage control unit for controlling voltages to be applied to the photocathode, the accelerating electrode, the focusing electrode, the anode and the electron stream detector, thereby controlling a potential distribution in a photoelectron transit path. The voltage control unit carrys out a voltage supply operation such that the anode is supplied with a positive voltage below 5 KV with respect to a voltage to be applied to the photocathode, and the focusing electrode is kept at the highest positive potential among the photocathode, the accelerating electrode, the focusing electrode and the anode.