電子放出素子

Japanese Patent JP4184306

B2

By making a cathode substrate function as a cathode and applying a voltage to the cathode and an anode, an electron emission element emits an electron from an electron source provided on the cathode substrate, and irradiates the electron onto an electron irradiation surface formed on the anode surface. The electron source is thread-type and provided on the cathode substrate. A deflecting voltage generates the electric field around the electron source. The electron source including a charge receives a power from the generated electric field to curve. Therefore, an irradiation position of the electron moves on the electron irradiation surface. Since it becomes unnecessary to move the electron irradiation surface and the electron source, a configuration of the electron emission element or an apparatus including the electron emission element is not complicated, and can be miniaturized and simple. Further, since the electron source curves, a tip of the electron source and the electron irradiation surface can be close, and a size of a beam spot at the irradiation position can be maintained constant. Therefore, since a mechanism for correcting the size of the beam spot is unnecessary, the configuration of the electron emission element or the apparatus including the electron emission element can be much simpler.

Makoto Okano
Tetsuya Imai
Osamu Kumasaka

JP2004078311A

November 19, 2008

March 18, 2004

Click for automatic bibliography generation  

Pioneer Corporation

H01J1/304; H01J29/08; H01J3/02; H01J63/04

JP2000086216A
JP2002367543A
JP7182967A

WO2004079767A1

Satoshi Nakamura
Tatsuo Egami

Previous Patent: METHOD FOR FIXING OPTICAL FIBER CORD TERMINAL

Next Patent: SMALL-DIAMETER COATED OPTICAL FIBER