Electron gun supporting member and electron gun apparatus
AssigneeNuFlare Technology, Inc.
InventorNobuo Miyamoto
Life of this patent
Estimating the term…
Abstract
An electron gun supporting member includes an insulating supporting member configured such that its one end is connected to a predetermined member having a ground potential and other end is connected to a high-voltage electrode to which a high potential being a negative high potential for emitting electrons from an electron source is applied, so as to support the high-voltage electrode, and a metal film formed in a partial region, which contacts neither the high-voltage electrode nor the predetermined member, on the outer surface of the insulating supporting member.
Claims13
An electron gun supporting member comprising:
- an insulating supporting member having one end connected to a predetermined member having a ground potential and other end is connected to a high-voltage electrode to which a high potential being a negative high potential for emitting electrons from an electron source is applied, so as to support the high-voltage electrode;
- and
- a metal film formed in a partial region, which contacts neither the high-voltage electrode nor the predetermined member, on an outer surface of the insulating supporting member.
An electron gun apparatus comprising:
- a cathode that emits electrons in a case of being applied with an acceleration voltage;
- a Wehnelt electrode to be applied with a potential more negative than a negative potential of the acceleration voltage;
- an insulating supporting member having one end connected to a predetermined member having a ground potential and other end connected to the Wehnelt electrode so as to support the Wehnelt electrode;
- and
- a metal film formed in a partial region, which contacts neither the Wehnelt electrode nor the predetermined member, on an outer surface of the insulating supporting member.
An electron gun supporting member comprising:
- a line connected to a high-voltage electrode;
- an insulating supporting member having one end connected to a predetermined member having a ground potential and other end that supports the line connected to the high-voltage electrode to which a negative high potential for emitting electrons from an electron source is applied;
- and
- a metal film formed in a partial region, which contacts neither the line nor the predetermined member, on an outer surface of the insulating supporting member.
Dependencies are inferred from the claim text.