Emitter support structure and field emission device
AssigneeMeidensha Corporation
InventorsHayato OCHI, Rena TAKAHASHI
Life of this patent
Estimating the term…
Abstract
An emitter support structure for a field emission device, the emitter support structure includes: a support portion disposed to be moved in a direction of both ends of a vacuum chamber of the field emission device, and configured to support an emitter of the field emission device; a protruding portion formed at one end portion of the support portion which confronts a target of the field emission device, and to which the emitter is inserted and mounted; a slit formed in a circumference wall portion of the protruding portion in a height direction of the circumference wall portion; and a redundant brazing material groove formed in an outside of the protruding portion along the circumference wall portion.
Claims5
An emitter support structure for a field emission device, the emitter support structure comprising:
- a support portion disposed to be moved in a direction of both ends of a vacuum chamber of the field emission device, and configured to support an emitter of the field emission device;
- a protruding portion formed at one end portion of the support portion which confronts a target of the field emission device, and to which the emitter is inserted and mounted;
- a slit formed in a circumference wall portion of the protruding portion in a height direction of the circumference wall portion;
- and
- a redundant brazing material groove formed in an outside of the protruding portion along the circumference wall portion.
A field emission device comprising:
- a vacuum vessel which includes a vacuum chamber, and which is formed of a cylindrical insulator;
- an emitter which is located on one end side of the vacuum chamber, and which includes an electron generating portion confronting the other end side of the vacuum chamber;
- a guard electrode disposed on an outer circumferential side of the electron generating portion of the emitter;
- a target which is located on the other end side of the vacuum chamber, and which confronts the electron generating portion of the emitter;
- and
- a supporting portion disposed to be moved in a direction of both ends of the vacuum chamber, and configured to support the emitter;
- a protruding portion formed at one end portion of the support portion which confronts the target, and to which the emitter is inserted and mounted;
- a slit formed in a circumference wall portion of the protruding portion in a height direction of the circumference wall portion;
- and
- a redundant brazing material groove formed in an outside of the protruding portion along the circumference wall portion.
Dependencies are inferred from the claim text.