CN1949449B - 电子发射器件 - Google Patents
电子发射器件 Download PDFInfo
- Publication number
- CN1949449B CN1949449B CN2005101003652A CN200510100365A CN1949449B CN 1949449 B CN1949449 B CN 1949449B CN 2005101003652 A CN2005101003652 A CN 2005101003652A CN 200510100365 A CN200510100365 A CN 200510100365A CN 1949449 B CN1949449 B CN 1949449B
- Authority
- CN
- China
- Prior art keywords
- electron emitter
- electron
- carbon nano
- emission device
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
- H01J1/304—Field-emissive cathodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/19—Thermionic cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/19—Thermionic cathodes
- H01J2201/196—Emission assisted by other physical processes, e.g. field- or photo emission
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/30—Cold cathodes
- H01J2201/304—Field emission cathodes
- H01J2201/30446—Field emission cathodes characterised by the emitter material
- H01J2201/30449—Metals and metal alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/30—Cold cathodes
- H01J2201/304—Field emission cathodes
- H01J2201/30446—Field emission cathodes characterised by the emitter material
- H01J2201/30453—Carbon types
- H01J2201/30469—Carbon nanotubes (CNTs)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/30—Cold cathodes
- H01J2201/304—Field emission cathodes
- H01J2201/30446—Field emission cathodes characterised by the emitter material
- H01J2201/30496—Oxides
Abstract
Description
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005101003652A CN1949449B (zh) | 2005-10-14 | 2005-10-14 | 电子发射器件 |
US11/478,406 US7638933B2 (en) | 2005-10-14 | 2006-06-28 | Electron emission device comprising carbon nanotubes yarn and method for generating emission current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005101003652A CN1949449B (zh) | 2005-10-14 | 2005-10-14 | 电子发射器件 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1949449A CN1949449A (zh) | 2007-04-18 |
CN1949449B true CN1949449B (zh) | 2010-09-29 |
Family
ID=38018912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005101003652A Active CN1949449B (zh) | 2005-10-14 | 2005-10-14 | 电子发射器件 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7638933B2 (zh) |
CN (1) | CN1949449B (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101400198B (zh) | 2007-09-28 | 2010-09-29 | 北京富纳特创新科技有限公司 | 面热光源,其制备方法及应用其加热物体的方法 |
CN101409962B (zh) | 2007-10-10 | 2010-11-10 | 清华大学 | 面热光源及其制备方法 |
CN101880035A (zh) | 2010-06-29 | 2010-11-10 | 清华大学 | 碳纳米管结构 |
RU2014126428A (ru) * | 2011-11-28 | 2016-01-27 | Конинклейке Филипс Н.В. | Рентгеновская трубка с подогреваемым автоэмиссионным эмиттером электронов и способ приведения в действие упомянутой трубки |
KR102077664B1 (ko) * | 2016-01-26 | 2020-02-14 | 한국전자통신연구원 | 하이브리드 전자 방출원을 구비한 엑스선 튜브 |
US10147581B2 (en) * | 2016-01-26 | 2018-12-04 | Electronics And Telecommunications Research Institute | X-ray tube including hybrid electron emission source |
CN107564783B (zh) * | 2017-09-05 | 2019-12-03 | 中国科学院电子学研究所 | 热场发射阴极及其制备方法、及应用其的真空电子器件 |
US11913146B1 (en) * | 2019-07-18 | 2024-02-27 | United States Of America As Represented By The Secretary Of The Air Force | Carbon nanotube yarn cathode using textile manufacturing methods |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1414590A (zh) * | 2001-10-26 | 2003-04-30 | 东元资讯股份有限公司 | 阴极射线管使用的阴极及其产生电子的方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4333035A (en) * | 1979-05-01 | 1982-06-01 | Woodland International Corporation | Areal array of tubular electron sources |
US5841219A (en) * | 1993-09-22 | 1998-11-24 | University Of Utah Research Foundation | Microminiature thermionic vacuum tube |
US6091187A (en) * | 1998-04-08 | 2000-07-18 | International Business Machines Corporation | High emittance electron source having high illumination uniformity |
US6995502B2 (en) * | 2002-02-04 | 2006-02-07 | Innosys, Inc. | Solid state vacuum devices and method for making the same |
CN100411979C (zh) * | 2002-09-16 | 2008-08-20 | 清华大学 | 一种碳纳米管绳及其制造方法 |
GB0310492D0 (en) * | 2003-05-08 | 2003-06-11 | Univ Surrey | Carbon nanotube based electron sources |
US7553446B1 (en) * | 2004-04-28 | 2009-06-30 | Astralux, Inc. | Biological agent decontamination system and method |
US20100297441A1 (en) * | 2004-10-18 | 2010-11-25 | The Regents Of The University Of California | Preparation of fibers from a supported array of nanotubes |
KR101458846B1 (ko) * | 2004-11-09 | 2014-11-07 | 더 보드 오브 리전츠 오브 더 유니버시티 오브 텍사스 시스템 | 나노섬유 리본과 시트 및 트위스팅 및 논-트위스팅 나노섬유 방적사의 제조 및 애플리케이션 |
CN1929070B (zh) * | 2005-09-09 | 2010-08-11 | 鸿富锦精密工业(深圳)有限公司 | 电子源及采用该电子源的面光源装置 |
CN100555529C (zh) * | 2005-11-04 | 2009-10-28 | 清华大学 | 一种场发射元件及其制备方法 |
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2005
- 2005-10-14 CN CN2005101003652A patent/CN1949449B/zh active Active
-
2006
- 2006-06-28 US US11/478,406 patent/US7638933B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1414590A (zh) * | 2001-10-26 | 2003-04-30 | 东元资讯股份有限公司 | 阴极射线管使用的阴极及其产生电子的方法 |
Also Published As
Publication number | Publication date |
---|---|
US7638933B2 (en) | 2009-12-29 |
US20090289555A1 (en) | 2009-11-26 |
CN1949449A (zh) | 2007-04-18 |
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Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20090320 Address after: Zip code 1115, block B, research and research complex, Tsinghua University, Haidian District, Beijing, zip code: 100084 Applicant after: Creative Technology Limited, Beijing Co-applicant after: Hongfujin Precision Industry (Shenzhen) Co., Ltd Address before: Postal code of Department of physics, Tsinghua University, Haidian District, Beijing: 100084 Applicant before: Tsinghua University Co-applicant before: Hongfujin Precision Industry (Shenzhen) Co., Ltd |
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ASS | Succession or assignment of patent right |
Owner name: BEIJING FUNATE INNOVATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: QINGHUA UNIVERSITY Effective date: 20090320 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant |