ELECTRON TUBE - HAMAMATSU PHOTONICS KK

Title:

ELECTRON TUBE

Document Type and Number:

WIPO Patent Application WO/2020/262016

Kind Code:

A1

Abstract:

An electron tube (1) comprises: a housing (10) having a window (11a) that transmits electromagnetic waves; an electron discharge plate (21) that is disposed inside the housing (10), and that discharges electrons upon receiving electromagnetic waves; and a retention member (22) that is disposed inside the housing (10), that retains the electron discharge plate (21), and that applies a voltage to the electron discharge plate (21). The electron discharge plate (21) has a first primary surface (21a) and a second primary surface (21b) that oppose each other. The retention member (22) has a base section (25) that is in contact with the first primary surface (21a), and a plurality of electron discharge plate biasing sections (27c) that are in contact with an edge of the second primary surface (21b) and that elastically bias the electron discharge plate (21) to the base section (25). The retention member (22) is electrically connected to the second primary surface (21b) through the plurality of electron discharge plate biasing sections (27c).

Inventors:

FUJITA TETSUYA (JP)
SUZUKI TAKAHIRO (JP)
MIYAZAKI YASUHIDE (JP)

Application Number:

PCT/JP2020/022999

Publication Date:

December 30, 2020

Filing Date:

June 11, 2020

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)

International Classes:

H01J40/06; H01J1/94; H01J43/08

Domestic Patent References:

WO2007119282A1

2007-10-25

Foreign References:

JP2002042636A	2002-02-08
JP2002042636A	2002-02-08

Other References: