DE69412174T2 - Beleuchtungseinheit, elektrodenlose Niederdruck-Entladungslampe und Spule zur Anwendung in einer solchen Lampe - Google Patents

Beleuchtungseinheit, elektrodenlose Niederdruck-Entladungslampe und Spule zur Anwendung in einer solchen Lampe

Info

Publication number
DE69412174T2
DE69412174T2 DE69412174T DE69412174T DE69412174T2 DE 69412174 T2 DE69412174 T2 DE 69412174T2 DE 69412174 T DE69412174 T DE 69412174T DE 69412174 T DE69412174 T DE 69412174T DE 69412174 T2 DE69412174 T2 DE 69412174T2
Authority
DE
Germany
Prior art keywords
lamp
coil
lighting unit
pressure discharge
electrodeless low
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.)
Expired - Fee Related
Application number
DE69412174T
Other languages
English (en)
Other versions
DE69412174D1 (de
Inventor
Der Zaag Pieter Jan Van
Klaas Vegter
Petrus Hendrikus Antonis
Der Valk Pieter Johan Van
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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
Priority claimed from BE9300483A external-priority patent/BE1007053A3/nl
Application filed by Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of DE69412174D1 publication Critical patent/DE69412174D1/de
Publication of DE69412174T2 publication Critical patent/DE69412174T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01J65/048—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 an excitation coil
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Compounds Of Iron (AREA)
  • Soft Magnetic Materials (AREA)
DE69412174T 1993-05-11 1994-05-10 Beleuchtungseinheit, elektrodenlose Niederdruck-Entladungslampe und Spule zur Anwendung in einer solchen Lampe Expired - Fee Related DE69412174T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE9300483A BE1007053A3 (nl) 1993-05-11 1993-05-11 Gesinterde transformatorkern van nizn-ferrietmateriaal.
EP93202819 1993-10-04
EP94200153 1994-01-21
EP94200161 1994-01-24

Publications (2)

Publication Number Publication Date
DE69412174D1 DE69412174D1 (de) 1998-09-10
DE69412174T2 true DE69412174T2 (de) 1999-03-11

Family

ID=27425124

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69412174T Expired - Fee Related DE69412174T2 (de) 1993-05-11 1994-05-10 Beleuchtungseinheit, elektrodenlose Niederdruck-Entladungslampe und Spule zur Anwendung in einer solchen Lampe

Country Status (4)

Country Link
US (1) US6057649A (de)
EP (1) EP0625794B1 (de)
JP (1) JPH0799042A (de)
DE (1) DE69412174T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69516664T2 (de) * 1994-09-14 2001-01-11 Koninkl Philips Electronics Nv Gesinterter formkörper, transformer-kern und induktor aus li(ni)zn-ferrite material sowie anwendungen davon
CN1106681C (zh) * 1996-04-19 2003-04-23 皇家菲利浦电子有限公司 无电极低压放电灯
US6552982B1 (en) 1999-03-08 2003-04-22 Matsushita Electric Industrial Co., Ltd. Information recording medium, information recording and reproduction method, and information recording and reproduction apparatus
US20020067129A1 (en) * 1999-05-03 2002-06-06 John C. Chamberlain Ferrite core for electrodeless flourescent lamp operating at 50-500 khz
US6433478B1 (en) * 1999-11-09 2002-08-13 Matsushita Electric Industrial Co., Ltd. High frequency electrodeless compact fluorescent lamp
US6650068B2 (en) * 2000-03-13 2003-11-18 Matsushita Electric Industrial Co., Ltd. Induction coil core, illumination unit using the same, and polycrystalline ferrite
DE10058852A1 (de) * 2000-11-27 2002-06-06 Raylux Gmbh Kompakte elektrodenlose Niederdruck-Gasentladungslampe mit erhöhter Lebensdauer
WO2005076316A1 (ja) * 2004-02-05 2005-08-18 Matsushita Electric Industrial Co., Ltd. 無電極放電ランプ
US7180230B2 (en) * 2004-04-16 2007-02-20 Osram Sylvania Inc. RF induction lamp with reduced electromagnetic interference

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL281410A (de) * 1962-07-25 1964-12-10
NL282192A (de) * 1962-08-16
US3521120A (en) * 1968-03-20 1970-07-21 Gen Electric High frequency electrodeless fluorescent lamp assembly
DE2659859C2 (de) * 1975-01-20 1985-08-01 General Electric Co., Schenectady, N.Y. Vorrichtung zur Aufrechterhaltung einer elektrischen Entladung
US4372865A (en) * 1980-09-26 1983-02-08 Spang Industries, Inc. Carbonate/hydroxide coprecipitation process
NL8401307A (nl) * 1984-04-24 1985-11-18 Philips Nv Elektrodeloze lagedrukontladingslamp.
NL8503008A (nl) * 1985-11-04 1987-06-01 Philips Nv Gelijkstroom-wisselstroomomzetter voor het ontsteken en voeden van een ontladingslamp.
US5138546A (en) * 1990-06-08 1992-08-11 U.S. Philips Corp. Sintered transformer core of mnzn-ferrite and a transformer comprising such a core

Also Published As

Publication number Publication date
JPH0799042A (ja) 1995-04-11
DE69412174D1 (de) 1998-09-10
US6057649A (en) 2000-05-02
EP0625794A1 (de) 1994-11-23
EP0625794B1 (de) 1998-08-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee