EP0939429A1 - Corps lumineux comprenant une enveloppe en plastique et un procédé pour sa préparation - Google Patents

Corps lumineux comprenant une enveloppe en plastique et un procédé pour sa préparation Download PDF

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Publication number
EP0939429A1
EP0939429A1 EP99100557A EP99100557A EP0939429A1 EP 0939429 A1 EP0939429 A1 EP 0939429A1 EP 99100557 A EP99100557 A EP 99100557A EP 99100557 A EP99100557 A EP 99100557A EP 0939429 A1 EP0939429 A1 EP 0939429A1
Authority
EP
European Patent Office
Prior art keywords
plastic
bulb
filament
glass
luminous
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Withdrawn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
EP99100557A
Other languages
German (de)
English (en)
Inventor
Lutz Dr. Ferley
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.)
Evonik Operations GmbH
Original Assignee
Huels Infracor 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 Huels Infracor GmbH filed Critical Huels Infracor GmbH
Publication of EP0939429A1 publication Critical patent/EP0939429A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps

Definitions

  • the present invention relates to breakage-insensitive lamps and a Process for their production.
  • the material glass has a known major disadvantage, its sensitivity to breakage.
  • the sensitivity to breakage means that the Light bulb is a relatively high scrap caused by broken glass, and thus the Manufacturing costs are increased. Additional costs arise because of the transport of light bulbs special packaging must be used in order to to protect transporting light bulbs from accidental blows. At the Operation of the filament may cause them to burst and splinter glass give up the environment. The glass fragments cause a high risk of injury for people and animals that are near the light fixtures.
  • EP 0 306 269 describes an incandescent lamp which protects against bursting double piston used.
  • the inner piston can also be wired be reinforced; the outer bulb can be made by applying a polymer layer be reinforced. When the light bulb bursts, only the inner bulb is destroyed, and it is thus avoided that parts of the lamp, which predominantly consist of glass, are thrown into the environment.
  • EP 0 175 333 describes a lamp whose outer envelope is covered with a Polymer, preferably Teflon, is coated to prevent glass splinters from escaping to prevent when the lamp bursts.
  • the invention is therefore based on the object of break-insensitive light bulbs and to provide a process for their manufacture.
  • the object is achieved by means of luminous bodies with sleeves made of plastic, made by injection molding.
  • the sheaths are preferably bulbs or bulbs Tubes of fluorescent tubes.
  • pistons and threads are of Lightbulbs or tubes and plug connections of fluorescent tubes made of plastic manufactured.
  • the polymers preferably have Softening or melting points of> 100 ° C and in particular of> 150 ° C on.
  • Suitable polymers are, for example, polyesters, polyphenylene ethers, polysulfones, Polycarbonates, polyamides, polymethacrylates.
  • Luminous bodies made of polycarbonate, polyamide or polymethacrylate are preferred.
  • Another object of the invention is a method for producing insensitive to breakage Luminaries.
  • the process is generally characterized in that the envelopes of the luminous bodies manufactured by injection molding.
  • the sleeves can be bulbs of light bulbs or the tubes about fluorescent tubes.
  • the insensitivity to breakage of Light bulbs can be increased significantly.
  • During transport and handling of these light bulbs produced by the method according to the invention with a Pistons made of plastic can be saved considerable costs, since no complex Packaging is more necessary and in the manufacturing process the committee can be significantly reduced.
  • the bursting of the filament is by use significantly reduced by plastic in the manufacture of the filament envelope. Additional advantages of this process compared to traditional manufacturing of luminous elements with glass envelopes consist in the lower energy costs, the faster piece production, the reduction of work steps, the easy Colorability of the plastic material and the possibility of special effects, such as they e.g. can be achieved through the use of luminescent plastics.
  • the present invention and the method according to the invention are as follows described using the production of a standard light bulb without this to be limited.
  • the light bulb made of glass in a known manner consists of a blown Glass bulb, a glass stamp that carries the filament, which consists of a heat-resistant metal such as Tungsten or a heat-resistant alloy exists, as well as a connecting element, the thread or plug connections are manufactured so that they are screwed into standard lamp holders or - can be inserted.
  • the connecting element is usually made of metal manufactured and serves as a pole for supplying the lamp with electrical energy.
  • the connecting element is used to transfer the energy to the filament electrically connected to the filament.
  • the other pole is one of Ceramic coated metallic contact, which is also electrically conductive with the Filament is connected.
  • the bulb of a light bulb is injection molded from plastic.
  • the connecting element of the light bulb and the holder of the filament can be opened a manner known to the person skilled in the art can be produced from metal or glass.
  • the molded part can be incorporated, preferably with a metal pin Surrounded by a layer that conducts heat poorly, e.g. Ceramics, also later in insert the molding by inserting a hole in the molding, in which the metal pin is inserted and glued or welded.
  • the hole can be done in a manner known to those skilled in the art, e.g. made by drilling become.
  • the light bulb produced by the method according to the invention Plastic fits into a normal socket and has electrical contact, it can be advantageous to coat the outside of the connector so that the Outside of the thread or the plug connections partially or completely is made electrically conductive. This can be done in a manner known to those skilled in the art, e.g. by applying conductive silver varnish.
  • the connecting element and the piston are injection molded from one piece. So that Threads or the plug connections can be made electrically conductive, it may make sense to use a metal pin during the spraying process is preferably covered with a layer that does not transfer the heat well, such as. Ceramics, insert into the injection mold so that the metal pin after Removal of the molding from the injection mold is installed in the molding, that he has an electrically conductive connection of the interior of the molding with the Permits the outside of the molding.
  • the metal pin is not in the plastic during the spraying process manufactured injection molded, the metal pin, preferably with a Surrounded by a layer that conducts heat poorly, e.g. Ceramics, also later in insert the molding by inserting a hole in the molding, in which the metal pin is inserted and glued or welded.
  • the hole can be done in a manner known to those skilled in the art, e.g. made by drilling become.
  • the light bulb produced by the method according to the invention Plastic fits into a normal socket and has electrical contact, it can be advantageous to coat the outside of the connector so that the Outside of the thread or the plug connections partially or completely is made electrically conductive. This can be done in a manner known to those skilled in the art, e.g. by applying conductive silver varnish.
  • the holder of the Filament or the stamp made of a heat-resistant material, such as Glass, Teflon or metal, and is used together with the filament, which is made for one Filaments commonly used material, e.g. Tungsten insists on one Introduced in the piston known manner and electrically conductive connected.
  • the conclusion is at least one electrically conductive contact, which is inserted into a ceramic and / or plastic mass.
  • the injection molding of parts of the plastic filament can on a Those skilled in the art are carried out using a method which is suitable for injection molding plastic parts.
  • Methods described in DE 26 19 064 and DE 43 28 377 can be not only axially symmetrical hollow bodies, but also curved hollow bodies Manufacture plastic.
  • plastics preferably amorphous or partially crystalline
  • Plastics are used are transparent or semi-transparent and break-resistant and preferably one Have a softening point of> 150 ° C, e.g. Polyester, polyphenylene ether.
  • the temperature during injection molding should be selected so that the temperature during injection molding Injection mold completely through the plastic liquefied by heating is filled and the plastic in the injection mold is not affected by thermal Effects is destroyed.
  • the optimal spray temperature as well as the optimal Injection pressure can be determined by simple preliminary tests for the plastic used, to be determined individually.
  • the individual parts of the incandescent lamps according to the invention are e.g. by gluing, airtight connected.
  • the advantage of the incandescent lamp, its thread and hollow body directly injected from a single piece is that they no longer occur can that when turning light bulbs in or out The bulb holder of the bulb detaches from the thread.
  • an inert gas can enter the interior of the light bulb be included. In this case too, it is advantageous to use the atmosphere in the To put inside the bulb under reduced pressure.
  • the injection molded plastic parts of an incandescent lamp or Filament from inside or outside e.g. with a heat resistant and / or heat insulating layer, e.g. from annealed metal oxides or ceramics, coated. Furthermore, a coating with infrared radiation reflective properties on the inside of the molded plastic parts the light bulb or the filament are applied.
  • the bulb of the light bulbs which is usually is pear-shaped to give a different shape.
  • shapes can be particularly preferred which allow greater heat dissipation, such as this e.g. by enlarging the surface by incorporating slats can, so that the heat load of the plastic material does not become too great.
  • optical effects e.g. the Bundling of light or similar effects.
  • functional Reasons e.g. by the shape and size of the filament or an illuminant Containing vessel, it may be appropriate to the piston a shape other than that commonly used to give.
  • Such Connection can e.g. be a color pigment, which the manufacture of the shell of a Luminous body for generating colored light.
  • the process is not just conventional in the manufacture of light bulbs Limited sense, but it can also be applied to all electrically operated light sources, which is an envelope, e.g. a piston or cylinder, which according to the conventional Process is made of glass, in which to generate the light not a filament but a lamp or a vessel filled with lamp is used, applied.
  • an envelope e.g. a piston or cylinder
  • the conventional Process is made of glass, in which to generate the light not a filament but a lamp or a vessel filled with lamp is used, applied.
  • Fig. 1 is an example of an embodiment according to the invention Process produced break-resistant light bulbs shown without that Procedure is limited to this.
  • the breakage-resistant incandescent lamp produced by the method according to the invention consists of a bulb made of plastic 1 , a thread 2 , which was made of conventional materials or plastic, a filament 3 , a holder (stamp) for the filament 4 and a bulb that forms the end of the bulb Contact 5 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
EP99100557A 1998-02-26 1999-01-08 Corps lumineux comprenant une enveloppe en plastique et un procédé pour sa préparation Withdrawn EP0939429A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998108002 DE19808002A1 (de) 1998-02-26 1998-02-26 Bruchunempfindliche Leuchtkörper und ein Verfahren zu ihrer Herstellung
DE19808002 1998-02-26

Publications (1)

Publication Number Publication Date
EP0939429A1 true EP0939429A1 (fr) 1999-09-01

Family

ID=7858924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100557A Withdrawn EP0939429A1 (fr) 1998-02-26 1999-01-08 Corps lumineux comprenant une enveloppe en plastique et un procédé pour sa préparation

Country Status (3)

Country Link
EP (1) EP0939429A1 (fr)
JP (1) JPH11283584A (fr)
DE (1) DE19808002A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090852A2 (fr) * 2004-03-18 2005-09-29 Lighting Science Group Corporation Element d'eclairage utilisant des elements electroluminescents a commande electronique et procede de fabrication dudit element
US7319293B2 (en) 2004-04-30 2008-01-15 Lighting Science Group Corporation Light bulb having wide angle light dispersion using crystalline material
US7824065B2 (en) 2004-03-18 2010-11-02 Lighting Science Group Corporation System and method for providing multi-functional lighting using high-efficiency lighting elements in an environment
US8004203B2 (en) 2004-04-23 2011-08-23 Lighting Science Group Corporation Electronic light generating element with power circuit
US8901831B2 (en) 2012-05-07 2014-12-02 Lighting Science Group Corporation Constant current pulse-width modulation lighting system and associated methods
US9464788B2 (en) 2013-08-16 2016-10-11 Lighting Science Group Corporation Method of assembling a lighting device with flexible circuits having light-emitting diodes positioned thereon
US9557015B2 (en) 2013-08-16 2017-01-31 Lighting Science Group Corporation Lighting device with flexible circuits having light-emitting diodes positioned thereupon and associated methods

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2227635A1 (fr) * 1973-04-25 1974-11-22 Mac Carthy Jack
GB1380720A (en) * 1971-12-22 1975-01-15 Ici Ltd Electric apparatus
FR2308197A1 (fr) * 1975-04-16 1976-11-12 Central Eclairage Lab Culot moule en matiere synthetique plastique et lampes a incandescence comportant un tel culot
GB1473599A (en) * 1973-11-30 1977-05-18 Itt Incandescent lamp having a spectral distribution means
JPS6229050A (ja) * 1985-07-31 1987-02-07 Shigeo Aoyanagi 放電ランプ
FR2587836A1 (fr) * 1985-04-24 1987-03-27 Bachelet Marc Lampe electroluminescente a gaz basse pression, en matiere pmma et pc
US4764707A (en) * 1987-07-06 1988-08-16 Hsu Cheng Wei Light bulb
EP0307861A2 (fr) * 1987-09-14 1989-03-22 Idemitsu Petrochemical Company Limited Article conformé revêtu d'une résine
JPH01105454A (ja) * 1987-07-09 1989-04-21 Matsushita Electric Works Ltd 蛍光ランプ
EP0381269A1 (fr) * 1989-01-31 1990-08-08 Koninklijke Philips Electronics N.V. Lampe électrique
JPH07122240A (ja) * 1993-10-27 1995-05-12 Hitachi Ltd 蛍光灯
EP0694952A2 (fr) * 1994-07-30 1996-01-31 Schiller, Christa Lampe fluorescente compacte à douille de lampe à incandescence, notamment à filetage de douille du type E27 ou E14
GB2294806A (en) * 1994-10-17 1996-05-08 Michael John Furnell A filament lamp
EP0721203A2 (fr) * 1995-01-04 1996-07-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge
WO1998000854A1 (fr) * 1996-06-28 1998-01-08 Philips Electronics N.V. Ampoule electrique

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1380720A (en) * 1971-12-22 1975-01-15 Ici Ltd Electric apparatus
FR2227635A1 (fr) * 1973-04-25 1974-11-22 Mac Carthy Jack
GB1473599A (en) * 1973-11-30 1977-05-18 Itt Incandescent lamp having a spectral distribution means
FR2308197A1 (fr) * 1975-04-16 1976-11-12 Central Eclairage Lab Culot moule en matiere synthetique plastique et lampes a incandescence comportant un tel culot
FR2587836A1 (fr) * 1985-04-24 1987-03-27 Bachelet Marc Lampe electroluminescente a gaz basse pression, en matiere pmma et pc
JPS6229050A (ja) * 1985-07-31 1987-02-07 Shigeo Aoyanagi 放電ランプ
US4764707A (en) * 1987-07-06 1988-08-16 Hsu Cheng Wei Light bulb
JPH01105454A (ja) * 1987-07-09 1989-04-21 Matsushita Electric Works Ltd 蛍光ランプ
EP0307861A2 (fr) * 1987-09-14 1989-03-22 Idemitsu Petrochemical Company Limited Article conformé revêtu d'une résine
EP0381269A1 (fr) * 1989-01-31 1990-08-08 Koninklijke Philips Electronics N.V. Lampe électrique
JPH07122240A (ja) * 1993-10-27 1995-05-12 Hitachi Ltd 蛍光灯
EP0694952A2 (fr) * 1994-07-30 1996-01-31 Schiller, Christa Lampe fluorescente compacte à douille de lampe à incandescence, notamment à filetage de douille du type E27 ou E14
GB2294806A (en) * 1994-10-17 1996-05-08 Michael John Furnell A filament lamp
EP0721203A2 (fr) * 1995-01-04 1996-07-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge
WO1998000854A1 (fr) * 1996-06-28 1998-01-08 Philips Electronics N.V. Ampoule electrique

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 204 (E - 520) 2 July 1987 (1987-07-02) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 346 (E - 798) 3 August 1989 (1989-08-03) *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 008 29 September 1995 (1995-09-29) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090852A2 (fr) * 2004-03-18 2005-09-29 Lighting Science Group Corporation Element d'eclairage utilisant des elements electroluminescents a commande electronique et procede de fabrication dudit element
WO2005090852A3 (fr) * 2004-03-18 2006-01-12 Lighting Science Group Corp Element d'eclairage utilisant des elements electroluminescents a commande electronique et procede de fabrication dudit element
US7086756B2 (en) 2004-03-18 2006-08-08 Lighting Science Group Corporation Lighting element using electronically activated light emitting elements and method of making same
US7824065B2 (en) 2004-03-18 2010-11-02 Lighting Science Group Corporation System and method for providing multi-functional lighting using high-efficiency lighting elements in an environment
US8004203B2 (en) 2004-04-23 2011-08-23 Lighting Science Group Corporation Electronic light generating element with power circuit
US7319293B2 (en) 2004-04-30 2008-01-15 Lighting Science Group Corporation Light bulb having wide angle light dispersion using crystalline material
US8901831B2 (en) 2012-05-07 2014-12-02 Lighting Science Group Corporation Constant current pulse-width modulation lighting system and associated methods
US9464788B2 (en) 2013-08-16 2016-10-11 Lighting Science Group Corporation Method of assembling a lighting device with flexible circuits having light-emitting diodes positioned thereon
US9557015B2 (en) 2013-08-16 2017-01-31 Lighting Science Group Corporation Lighting device with flexible circuits having light-emitting diodes positioned thereupon and associated methods

Also Published As

Publication number Publication date
DE19808002A1 (de) 1999-09-02
JPH11283584A (ja) 1999-10-15

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