EP0780881A3 - Electrodeless discharge lamp - Google Patents

Electrodeless discharge lamp Download PDF

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Publication number
EP0780881A3
EP0780881A3 EP96117127A EP96117127A EP0780881A3 EP 0780881 A3 EP0780881 A3 EP 0780881A3 EP 96117127 A EP96117127 A EP 96117127A EP 96117127 A EP96117127 A EP 96117127A EP 0780881 A3 EP0780881 A3 EP 0780881A3
Authority
EP
European Patent Office
Prior art keywords
end faces
discharge lamp
electromagnetic field
order
diaphragm body
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.)
Granted
Application number
EP96117127A
Other languages
German (de)
French (fr)
Other versions
EP0780881A2 (en
EP0780881B1 (en
Inventor
Ernst Dr. Smolka
Klaus-Jürgen Dr. Dietz
Franz Schilling
Anke Schnabl
Beate Herter
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.)
Heraeus Noblelight GmbH
Original Assignee
Heraeus Noblelight GmbH
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 Heraeus Noblelight GmbH filed Critical Heraeus Noblelight GmbH
Publication of EP0780881A2 publication Critical patent/EP0780881A2/en
Publication of EP0780881A3 publication Critical patent/EP0780881A3/en
Application granted granted Critical
Publication of EP0780881B1 publication Critical patent/EP0780881B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/044—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by a separate microwave unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel

Abstract

Eine elektrodenlose Niederdruck-Entladungslampe (1), insbesondere Deuteriumlampe, weist einen zylindersymmetrischen Blendenkörper (2) auf, der an seinen Stirnseiten (8,9) jeweils einen Hohlraum (4,5) enthält; die beiden Hohlräume (4,5) sind durch eine Bohrung (7) miteinander verbunden, welche als Blendenöffnung dient, um das mittels Einkoppelung eines hochfrequenten elektromagnetischen Feldes im Inneren erzeugte Plasma zwecks Intensitätserhöhung der abgegebenen Strahlung einzuschnüren. Beide Stirnseiten (8,9) des zylindersymmetrischen Blendenkörpers (2) sind mit einer hermetischen Abdichtung versehen, von denen wenigstens eine als Austrittsfenster (11) ausgebildet ist; in einer bevorzugten Ausführungsform erfolgt die Einkoppelung des elektromagnetischen Feldes auf kapazitivem Wege durch auf den Stirnflächen befindliche Elektroden (13,14), die wenigstens eine Öffnung (15) für den Austritt der Strahlung aufweisen, sofern sie benachbart zu einem Austrittsfenster (11) angeordnet sind.

Figure 00000001
An electrodeless low-pressure discharge lamp (1), in particular a deuterium lamp, has a cylindrically symmetrical diaphragm body (2), each of which contains a cavity (4, 5) on its end faces (8, 9); the two cavities (4, 5) are connected to one another by a bore (7) which serves as an aperture in order to constrict the plasma generated inside by coupling in a high-frequency electromagnetic field in order to increase the intensity of the radiation emitted. Both end faces (8, 9) of the cylindrical symmetrical diaphragm body (2) are provided with a hermetic seal, at least one of which is designed as an exit window (11); In a preferred embodiment, the electromagnetic field is coupled in capacitively by electrodes (13, 14) on the end faces, which have at least one opening (15) for the radiation to exit, provided that they are arranged adjacent to an exit window (11) .
Figure 00000001
EP96117127A 1995-12-20 1996-10-25 Electrodeless discharge lamp Expired - Lifetime EP0780881B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547519A DE19547519C2 (en) 1995-12-20 1995-12-20 Electrodeless discharge lamp
DE19547519 1995-12-20

Publications (3)

Publication Number Publication Date
EP0780881A2 EP0780881A2 (en) 1997-06-25
EP0780881A3 true EP0780881A3 (en) 1999-02-10
EP0780881B1 EP0780881B1 (en) 2002-05-22

Family

ID=7780615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117127A Expired - Lifetime EP0780881B1 (en) 1995-12-20 1996-10-25 Electrodeless discharge lamp

Country Status (4)

Country Link
US (1) US5814951A (en)
EP (1) EP0780881B1 (en)
JP (1) JP3217001B2 (en)
DE (2) DE19547519C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909631A1 (en) * 1999-03-05 2000-09-14 Heraeus Noblelight Gmbh Portable miniature spectral probe
DE20004368U1 (en) 2000-03-10 2000-10-19 Heraeus Noblelight Gmbh Electrodeless discharge lamp
DE20004366U1 (en) 2000-03-10 2000-10-12 Heraeus Noblelight Gmbh Spotlight module for use in a lamp housing
KR100367132B1 (en) * 2000-04-27 2003-01-09 준 최 Electroless discharge device
US6922021B2 (en) * 2000-07-31 2005-07-26 Luxim Corporation Microwave energized plasma lamp with solid dielectric waveguide
US7429818B2 (en) * 2000-07-31 2008-09-30 Luxim Corporation Plasma lamp with bulb and lamp chamber
US6737809B2 (en) * 2000-07-31 2004-05-18 Luxim Corporation Plasma lamp with dielectric waveguide
US6737810B2 (en) * 2000-10-30 2004-05-18 Matsushita Electric Industrial Co., Ltd. Electrodeless discharge lamp apparatus with adjustable exciting electrodes
WO2005076316A1 (en) * 2004-02-05 2005-08-18 Matsushita Electric Industrial Co., Ltd. Electrodeless discharge lamp
JP6121667B2 (en) * 2012-08-22 2017-04-26 浜松ホトニクス株式会社 Discharge lamp and light source device
RU2560931C1 (en) * 2014-07-07 2015-08-20 Федеральное государственное бюджетное учреждение науки Институт сильноточной электроники Сибирского отделения Российской академии наук (ИСЭ СО РАН) Gas-discharge radiation source

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003873A (en) * 1963-02-14 1965-09-08 Distillers Co Yeast Ltd High frequency discharge spectral lamps
GB2257562A (en) * 1991-06-24 1993-01-13 Heraeus Instr Gmbh Electrodeless low pressure discharge lamp.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE633760C (en) * 1930-09-26 1936-08-05 Siemens Ag Discharge lamp in which the discharge passes through a narrowed cross section
US2068595A (en) * 1935-07-31 1937-01-19 Hygrade Sylvania Corp Gaseous or vapor arc discharge lamp
US2298239A (en) * 1940-07-22 1942-10-06 Science Lab Inc Light source
DE911870C (en) * 1952-03-14 1954-05-20 Dieter Mannesmann Dr Ing Flash tubes for tube flash units
US3502929A (en) * 1967-07-14 1970-03-24 Varian Associates High intensity arc lamp
DE2265542C2 (en) * 1971-01-25 1983-01-20 Varian Associates, Inc., 94303 Palo Alto, Calif. Arc discharge lamp
DE3240164A1 (en) * 1982-10-29 1984-05-03 Grün Optik Wetzlar GmbH, 6330 Wetzlar Atomic spectral lamp
CA1255738A (en) * 1984-12-06 1989-06-13 Radomir Lagushenko Low pressure arc discharge tube having increased voltage
US4884007A (en) * 1984-12-06 1989-11-28 Gte Products Corporation Low pressure arc discharge tube having increased voltage
US4816719A (en) * 1984-12-06 1989-03-28 Gte Products Corporation Low pressure arc discharge tube with reduced ballasting requirement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003873A (en) * 1963-02-14 1965-09-08 Distillers Co Yeast Ltd High frequency discharge spectral lamps
GB2257562A (en) * 1991-06-24 1993-01-13 Heraeus Instr Gmbh Electrodeless low pressure discharge lamp.

Also Published As

Publication number Publication date
DE19547519A1 (en) 1997-07-03
EP0780881A2 (en) 1997-06-25
JPH09190803A (en) 1997-07-22
DE59609231D1 (en) 2002-06-27
US5814951A (en) 1998-09-29
JP3217001B2 (en) 2001-10-09
EP0780881B1 (en) 2002-05-22
DE19547519C2 (en) 2003-08-07

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