EP2503588A3 - Cathodoluminiscent lighting system - Google Patents

Cathodoluminiscent lighting system Download PDF

Info

Publication number
EP2503588A3
EP2503588A3 EP12173268.9A EP12173268A EP2503588A3 EP 2503588 A3 EP2503588 A3 EP 2503588A3 EP 12173268 A EP12173268 A EP 12173268A EP 2503588 A3 EP2503588 A3 EP 2503588A3
Authority
EP
European Patent Office
Prior art keywords
anode
cathode
lighting system
electrons
power
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.)
Withdrawn
Application number
EP12173268.9A
Other languages
German (de)
French (fr)
Other versions
EP2503588A2 (en
Inventor
Richard Herring
Charles E. Hunt
Thomas Skupien
Tomas Hasilik
Viktor Jelinek
Bernard K. Vancil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vu1 Corp
Original Assignee
Vu1 Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vu1 Corp filed Critical Vu1 Corp
Publication of EP2503588A2 publication Critical patent/EP2503588A2/en
Publication of EP2503588A3 publication Critical patent/EP2503588A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J63/00—Cathode-ray or electron-stream lamps
    • H01J63/06—Lamps with luminescent screen excited by the ray or stream
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • X-Ray Techniques (AREA)

Abstract

Electron sources for a cathodoluminescent lighting system are disclosed. An electron source is a broad-beam reflecting-type electron gun (243) having a cathode (240) for emitting electrons and a reflector and/or secondary emitter electrode and no grids. An alternative electron gun has a cathode having a heater welded to a disk, the disk having an emissive surface on a side facing a dome-shaped defocusing grid and an anode. A lighting system (100) incorporating the electron sources has an envelope (250) with a transparent face (252), an anode (242) with a phosphor layer (254) to emit light through the face and a conductor layer. The system also has a power supply (102, 104, 105, 106, 108) for providing from five to thirty thousand volts of power to the light emitting device to draw electrons from cathode to anode and excite a cathodoluminescent phosphor, and the electrons transiting from cathode to anode are essentially unfocused. A power-factor-corrected embodiment is also disclosed.
EP12173268.9A 2008-09-12 2009-09-11 Cathodoluminiscent lighting system Withdrawn EP2503588A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9666508P 2008-09-12 2008-09-12
US16485209P 2009-03-30 2009-03-30
US16485309P 2009-03-30 2009-03-30
EP09813685A EP2335265A4 (en) 2008-09-12 2009-09-11 System and apparatus for cathodoluminescent lighting

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP09813685.6 Division 2009-09-11
EP09813685A Division EP2335265A4 (en) 2008-09-12 2009-09-11 System and apparatus for cathodoluminescent lighting

Publications (2)

Publication Number Publication Date
EP2503588A2 EP2503588A2 (en) 2012-09-26
EP2503588A3 true EP2503588A3 (en) 2013-08-28

Family

ID=42005499

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09813685A Withdrawn EP2335265A4 (en) 2008-09-12 2009-09-11 System and apparatus for cathodoluminescent lighting
EP12173268.9A Withdrawn EP2503588A3 (en) 2008-09-12 2009-09-11 Cathodoluminiscent lighting system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09813685A Withdrawn EP2335265A4 (en) 2008-09-12 2009-09-11 System and apparatus for cathodoluminescent lighting

Country Status (4)

Country Link
EP (2) EP2335265A4 (en)
CN (1) CN102210003A (en)
CA (1) CA2740623A1 (en)
WO (1) WO2010030899A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2972847B1 (en) * 2011-03-17 2014-02-14 Commissariat Energie Atomique LIGHT EMITTING DEVICE BY THE PHENOMENON OF CATHODOLUMINESCENCE
CN107910236B (en) * 2017-12-14 2023-07-04 华中科技大学 Electron emission device based on thermionic emission cathode
CN112676688B (en) * 2021-03-15 2021-06-04 中汽研（天津）汽车工程研究院有限公司 Dissimilar metal resistance spot welding method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653835A (en) * 1946-01-28 1951-05-30 Marconi Wireless Telegraph Co Cathode arrangement for television tubes
EP0102139A2 (en) * 1982-08-19 1984-03-07 Osram- Gec Limited Cathodoluminescent light sources and electric lighting arrangements including such sources
US4499405A (en) * 1981-05-20 1985-02-12 Rpc Industries Hot cathode for broad beam electron gun
US5831397A (en) * 1996-12-02 1998-11-03 Telegen Corporation Deflecting apparatus for a flat-panel display illuminated by electrons
WO2008098013A2 (en) * 2007-02-05 2008-08-14 Vu1 Corporation System and apparatus for cathodoluminescent lighting

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967963A (en) * 1957-04-30 1961-01-10 Rca Corp Electron gun structure
US3631290A (en) * 1970-08-17 1971-12-28 Ibm Thermionic cathode for electron beam apparatus
JPS536560A (en) * 1976-07-07 1978-01-21 Hitachi Ltd Manufacture of cathode for direct heating type cathode ray tube
JPS58813B2 (en) * 1977-09-30 1983-01-08 株式会社日立製作所 Electron tube cathode and its manufacturing method
JPS5816737B2 (en) * 1978-04-24 1983-04-01 株式会社日立製作所 Oxide cathode for electron tubes
GB2031219B (en) * 1978-10-04 1982-12-01 English Electric Valve Co Ltd Crt matrix display
US4388551A (en) * 1980-11-24 1983-06-14 Zenith Radio Corporation Quick-heating cathode structure
GB8924794D0 (en) 1989-11-03 1989-12-20 Secr Defence Power supplies
KR920704330A (en) * 1990-05-10 1992-12-19 원본미기재 Cathode-emitting panel lamps and methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653835A (en) * 1946-01-28 1951-05-30 Marconi Wireless Telegraph Co Cathode arrangement for television tubes
US4499405A (en) * 1981-05-20 1985-02-12 Rpc Industries Hot cathode for broad beam electron gun
EP0102139A2 (en) * 1982-08-19 1984-03-07 Osram- Gec Limited Cathodoluminescent light sources and electric lighting arrangements including such sources
US5831397A (en) * 1996-12-02 1998-11-03 Telegen Corporation Deflecting apparatus for a flat-panel display illuminated by electrons
WO2008098013A2 (en) * 2007-02-05 2008-08-14 Vu1 Corporation System and apparatus for cathodoluminescent lighting

Also Published As

Publication number Publication date
EP2503588A2 (en) 2012-09-26
CN102210003A (en) 2011-10-05
CA2740623A1 (en) 2010-03-18
EP2335265A1 (en) 2011-06-22
WO2010030899A1 (en) 2010-03-18
EP2335265A4 (en) 2011-12-28

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