US 12,142,470 B2
Electron tube
Yasuyuki Egawa, Hamamatsu (JP); Atsuhito Fukasawa, Hamamatsu (JP); Suenori Kimura, Hamamatsu (JP); Takayasu Nagasawa, Hamamatsu (JP); and Shunsuke Kobayashi, Hamamatsu (JP)
Assigned to HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Filed by HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Filed on Feb. 14, 2023, as Appl. No. 18/109,388.
Prior Publication US 2024/0274421 A1, Aug. 15, 2024
Int. Cl. H01J 43/28 (2006.01); H01J 43/08 (2006.01)
CPC H01J 43/28 (2013.01) [H01J 43/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electron tube comprising:
a photoelectric conversion unit configured to emit photoelectrons corresponding to incident light;
an electron detection unit configured to receive the photoelectrons from the photoelectric conversion unit;
a gate electrode disposed between the photoelectric conversion unit and the electron detection unit; and
a housing configured to accommodate the photoelectric conversion unit, the electron detection unit, and the gate electrode,
wherein the housing has a lid portion to which the photoelectric conversion unit is fixed and which constitutes one end side of the housing,
the gate electrode includes a main body portion that controls passage of the photoelectrons by applying a voltage, and a power supply part that supports the main body portion so as to be spaced apart from the photoelectric conversion unit and applies the voltage to the main body portion, and
the power supply part is held by the lid portion.