WO1990007209A1 - Adapter for a compact discharge lamp in a lamp fitting - Google Patents

Adapter for a compact discharge lamp in a lamp fitting Download PDF

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Publication number
WO1990007209A1
WO1990007209A1 PCT/SE1989/000728 SE8900728W WO9007209A1 WO 1990007209 A1 WO1990007209 A1 WO 1990007209A1 SE 8900728 W SE8900728 W SE 8900728W WO 9007209 A1 WO9007209 A1 WO 9007209A1
Authority
WO
WIPO (PCT)
Prior art keywords
adapter
lamp
card
contact means
base part
Prior art date
Application number
PCT/SE1989/000728
Other languages
French (fr)
Inventor
Törje ILEMO
Original Assignee
Combinova Ab
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 Combinova Ab filed Critical Combinova Ab
Publication of WO1990007209A1 publication Critical patent/WO1990007209A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/94—Holders formed as intermediate parts for linking a counter-part to a coupling part
    • H01R33/942—Holders formed as intermediate parts for linking a counter-part to a coupling part for tubular fluorescent lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/0095—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of U-shaped tubular light sources, e.g. compact fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • 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
    • H05B41/02—Details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the invention relates to an adapter for c onne c ting a compact discharge lamp to household voltage terminals in a lamp fitting via an electrical adapter circuit with electrical components inside an adapter housing provided with a holder portion for receiving and holding the base portion of said compact discharge lamp.
  • a similar adapter although with the electrical adapter circuit arranged outside the housing provided with the holder portion, is previously known from GB 2 077 488 (Philips).
  • An object of the present invention is to provide an adapter of the kind referred to in the opening paragraph, which has a simple, inexpensive and compact structure and which is easy to assemble, in particular with regard to the electrical connections of the electrical adapter circuit. Another object is to provide an adapter housing which is securely held in place in the lamp fitting while enabling embodiments, wherein the
  • the electrical connections to the terminals of the lamp fitting and to the feeding pins of the compact discharge lamp can be made very short or, even more favorably, can be constituted by contact means placed directly on the lower and upper edge portions of the upright card or cards.
  • the cover part of the adapter housing can be dimensioned so as to conceal the fasteners, by which the base part is secured to the lamp fitting.
  • Fig. 1 shows a perspective, exploded view of a lamp fitting, a compact discharge lamp unit and the various parts of the adapter according to the invention
  • Fig. 2 shows a central, longitudinal section through the adapter of fig. 1 (upon assembly); and Fig. 3 is another central, longitudinal section, in a plane rotated 90° in relation to fig. 2, through the adapter of figs. 1 and 2 (the right half being left out).
  • the adapter is intended to be mounted in a lamp fitting of the kind having a ceramic base structure B with a cylindrical flange 1 having an internal thread 2 for screwed attachment of a transparent globe G with an externally threaded foot portion 3.
  • a lamp fitting is provided with a lamp holder (not shown) for an incadescent lamp centrally inside the base structure B.
  • the conventional lamp holder is replaced by an adapter 4, which is permanently connected to the supply a.e. voltage screw head terminals 5,6, e.g. by means of contact sleeves 7,8 projecting downwards from a base part 9, formed substantially as a circular plate, of the adapter 4.
  • a recessed holder portion 11 adapted to receive and hold the base portion 12 of a compact, fluorescent discharge lamp unit 13 of a standardized type.
  • the cup-shaped cover part 10 of the housing is secured to the base part 9 by means of a central screw 14, which extends through a central hole 15 in a recessed bottom wall 16 of the holder portion 11 and engages with its threads in a sleeve portion 17 projecting upwards from the central portion of the base part 9.
  • This sleeve portion 17 forms a part of an upwardly projecting frame structure of the base part 9, serving to strengthen the latter, including peripheral, arcuate walls 18, 19 also serving to guide a widened lower edge portion 10a of the cover part 10, a centrally crossing wall 20, and straight walls 21, 22 connecting the ends of arcuate walls 18, 19.
  • peripheral, arcuate walls 18, 19 also serving to guide a widened lower edge portion 10a of the cover part 10, a centrally crossing wall 20, and straight walls 21, 22 connecting the ends of arcuate walls 18, 19.
  • fastening screws 23 At the outside of each straight wall 21, 22, but inside the peripheral edge of the base plate 9, there are two holes for fastening screws 23 (only one is shown in fig. 1), by means of which the base plate is secured to the bottom of the lamp fitting base structure B (having non-illustrated threaded hole).
  • the base plate 9 All around the circumference of the base plate 9, there is a free surface for receiving the downwardly facing, circular rim surface of the widened portion 10a of the cover part 10.
  • a ring washer 24 at the underside of the base plate 9 provides a somewhat resilient seal against the lamp fitting base structure B.
  • the lead-through holes above the contact sleeves 7 and 8 are also provided with sealing means.
  • the cup-shaped cover part 10 is oriented in a correct rotational position by means of two oppositely located recesses 10b, 10c, one of which fits onto a corresponding lug 18a projecting radially outwards at the outside of the arcuate wall 18.
  • the electrical adapter circuit is provided on two upright or vertically standing circuit cards 25 and 26, which are oriented in parallel to each other, one on each side of the centrally crossing wall 20 of the base part 9 and the downwardly projecting holder portion 11 of the cover part 10.
  • Each card 25, 26 has bulky electrical components 25a, 26a attached thereto and are mutually connected by at least one non-illustrated wire.
  • the lower edge portion of each card is provided with a terminal, electrically conductive strip 26b (only the one on card 26 is visible in fig. 1), which makes direct electrical contact with a resilient, electrically conductive tongue device 27 and 28, respectively, which also serves to mechanically hold the lower part of each circuit card 25, 26.
  • the tongue device 27, 28 comprises three tongue members 27a, 27b, 27c and 28a, 28b, 28c, respectively, placed along the lower edge of each card, two of the tongue members engaging the card from one side and the third, central tongue member (27b, T8b) engaging the card from the other side.
  • Each tongue device 27, 28, with its three tongue members is electrically connected to the respective contact sleeve 7, 8 so as to feed the supply voltage potentials to the respective circuit card 25, 26.
  • each card Adjacent the top edge of each card, there is a terminal spring element 29 and 30, respectively, each element being mechanically and electrically connected to the card for feeding the terminal pins 31 (only one is visible in fig. 1) of the lamp unit 13.
  • the top portions of the circuit cards 25, 26 are held in place by means of holding lugs 33 and 34 projecting downwards from the top wall lOd of the cover part 10, as can be seen from figs. 2 and 3, one such lug being located in the region of each vertical edge of the respective card.
  • the base part 9 can be provided with an upwardly projecting cylindrical flange, so that the dividing plane of the two housing parts is situated higher up.
  • the base part and the cover part may have a different geometrical configuration, e.g. in the for of a box-like, a barrel-like or a frustro-conical housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

An adapter for connecting a compact discharge lamp (13) to household voltage terminals (5, 6) in a lamp fitting (B) via an electrical adapter circuit (25, 26) with electrical components (26a) inside an adapter housing (9, 10) provided with a holder portion (11) for receiving and holding the base portion (12) of the compact discharge lamp. The housing comprises a base part (9), which is provided with two contact means (8) adapted for connection with a respective one of the terminals (5, 6), and a cover part (10), the top of which is provided with the lamp holder portion (11). The electrical adapter circuit with the associated electrical components is arranged on at least one upright circuit card (25, 26) having at its lower and upper edge portions means (26b, 30) for establishing electrical connection to the contact means (27 and 8, 28) and to the terminal pins (31) of the compact discharge lamp (13), respectively.

Description

ADAPTEP FOR A COMPACT DISCHARGE LAMP IN A LAMP FITTING
The invention relates to an adapter for c onne c ting a compact discharge lamp to household voltage terminals in a lamp fitting via an electrical adapter circuit with electrical components inside an adapter housing provided with a holder portion for receiving and holding the base portion of said compact discharge lamp. A similar adapter, although with the electrical adapter circuit arranged outside the housing provided with the holder portion, is previously known from GB 2 077 488 (Philips).
An object of the present invention is to provide an adapter of the kind referred to in the opening paragraph, which has a simple, inexpensive and compact structure and which is easy to assemble, in particular with regard to the electrical connections of the electrical adapter circuit. Another object is to provide an adapter housing which is securely held in place in the lamp fitting while enabling embodiments, wherein the
necessary fasteners are concealed.
These objects are accomplished by an adapter as defined in claim 1, the novel features being stated i n the characterizing clause.
By the use of at least one upright or vertically standing circuit card, the electrical connections to the terminals of the lamp fitting and to the feeding pins of the compact discharge lamp can be made very short or, even more favorably, can be constituted by contact means placed directly on the lower and upper edge portions of the upright card or cards. Furthermore, the cover part of the adapter housing can be dimensioned so as to conceal the fasteners, by which the base part is secured to the lamp fitting. Further advantageous features are defined in the dependent claims 2-10.
The invention will now be explained further below with reference to the drawings illustrating a preferred embodiment of the inventive adapter.
Fig. 1 shows a perspective, exploded view of a lamp fitting, a compact discharge lamp unit and the various parts of the adapter according to the invention;
Fig. 2 shows a central, longitudinal section through the adapter of fig. 1 (upon assembly); and Fig. 3 is another central, longitudinal section, in a plane rotated 90° in relation to fig. 2, through the adapter of figs. 1 and 2 (the right half being left out).
In the illustrated example, the adapter is intended to be mounted in a lamp fitting of the kind having a ceramic base structure B with a cylindrical flange 1 having an internal thread 2 for screwed attachment of a transparent globe G with an externally threaded foot portion 3. Normally, such a lamp fitting is provided with a lamp holder (not shown) for an incadescent lamp centrally inside the base structure B. However, according to the invention, the conventional lamp holder is replaced by an adapter 4, which is permanently connected to the supply a.e. voltage screw head terminals 5,6, e.g. by means of contact sleeves 7,8 projecting downwards from a base part 9, formed substantially as a circular plate, of the adapter 4. At the top portion of a cupshaped, substantially cylindrical cover or upper housing part 10, there is a recessed holder portion 11 adapted to receive and hold the base portion 12 of a compact, fluorescent discharge lamp unit 13 of a standardized type. The cup-shaped cover part 10 of the housing is secured to the base part 9 by means of a central screw 14, which extends through a central hole 15 in a recessed bottom wall 16 of the holder portion 11 and engages with its threads in a sleeve portion 17 projecting upwards from the central portion of the base part 9. This sleeve portion 17 forms a part of an upwardly projecting frame structure of the base part 9, serving to strengthen the latter, including peripheral, arcuate walls 18, 19 also serving to guide a widened lower edge portion 10a of the cover part 10, a centrally crossing wall 20, and straight walls 21, 22 connecting the ends of arcuate walls 18, 19. At the outside of each straight wall 21, 22, but inside the peripheral edge of the base plate 9, there are two holes for fastening screws 23 (only one is shown in fig. 1), by means of which the base plate is secured to the bottom of the lamp fitting base structure B (having non-illustrated threaded hole). All around the circumference of the base plate 9, there is a free surface for receiving the downwardly facing, circular rim surface of the widened portion 10a of the cover part 10. A ring washer 24 at the underside of the base plate 9 provides a somewhat resilient seal against the lamp fitting base structure B. Preferably, the lead-through holes above the contact sleeves 7 and 8 are also provided with sealing means. Furthermore, the cup-shaped cover part 10 is oriented in a correct rotational position by means of two oppositely located recesses 10b, 10c, one of which fits onto a corresponding lug 18a projecting radially outwards at the outside of the arcuate wall 18.
The electrical adapter circuit is provided on two upright or vertically standing circuit cards 25 and 26, which are oriented in parallel to each other, one on each side of the centrally crossing wall 20 of the base part 9 and the downwardly projecting holder portion 11 of the cover part 10. Each card 25, 26 has bulky electrical components 25a, 26a attached thereto and are mutually connected by at least one non-illustrated wire. The lower edge portion of each card is provided with a terminal, electrically conductive strip 26b (only the one on card 26 is visible in fig. 1), which makes direct electrical contact with a resilient, electrically conductive tongue device 27 and 28, respectively, which also serves to mechanically hold the lower part of each circuit card 25, 26. The tongue device 27, 28 comprises three tongue members 27a, 27b, 27c and 28a, 28b, 28c, respectively, placed along the lower edge of each card, two of the tongue members engaging the card from one side and the third, central tongue member (27b, T8b) engaging the card from the other side. Each tongue device 27, 28, with its three tongue members is electrically connected to the respective contact sleeve 7, 8 so as to feed the supply voltage potentials to the respective circuit card 25, 26.
Adjacent the top edge of each card, there is a terminal spring element 29 and 30, respectively, each element being mechanically and electrically connected to the card for feeding the terminal pins 31 (only one is visible in fig. 1) of the lamp unit 13.
With this arrangement, there is a minimum of electrical connecting wires in the adapter, and the assembly thereof is very convenient and inexpensive. Upon assembly, a conventional U-shaped spring element 32 will conceal the central fastening screw 14.
The top portions of the circuit cards 25, 26 are held in place by means of holding lugs 33 and 34 projecting downwards from the top wall lOd of the cover part 10, as can be seen from figs. 2 and 3, one such lug being located in the region of each vertical edge of the respective card. When mounting the adapter 4 in a lamp fitting B, the housing is first taken apart, and the base part 9 is secured to the fitting. Then, the cover part 10 (with the circuit cards 25, 26 held in the holding lugs 33, 34) is mounted, so that the circuit cards are positioned into the respective tongue device 27, 28, whereupon the screw 14 is tightened and the spring element 32 is snapped into its position.
Of course, the detailed structure of the adapter can be modifie by those skilled in the art within the scope of the claims. For example, the base part 9 can be provided with an upwardly projecting cylindrical flange, so that the dividing plane of the two housing parts is situated higher up. Also, depending on the geometry of the lamp fitting, the base part and the cover part may have a different geometrical configuration, e.g. in the for of a box-like, a barrel-like or a frustro-conical housing.
Instead of two planar circuit cards, it is possible to use one or more curved, e.g. cylindrical or U-shaped circuit cards.

Claims

1. An adapter, intended to replace a conventional lamp holder in a lamp fitting (B), for connecting a compact discharge lamp (13) to household voltage terminals (5,6) in said lamp fitting (B) via an electrical adapter circuit with electrical components inside an adapter housing (9,10) provided with a holder portion (11) for receiving and holding the base portion (12) of said compact discharge lamp, c h a r a c t e r i z e d in that said housing comprises a base part (9), which is provided with two contact means (7,8) adapted for connection with a respective one of said terminals (5,6), and a cover part (10), the top of which is provided with said lamp holder portion (11), and in that, said electrical adapter circuit with the associated electrical components is arranged on at least one upright circuit card (25,26) having at its lower and upper edge portions means (26b, 30) for establishing electrical connection to said contact means (7,27 and 8,28) and to the terminal pins (31) of the compact discharge lamp (13), respectively.
2. An adapter as defined in claim 1, c h a r a c t e r i z e d in that two upright circuit cards (25,26) are situated on opposite sides of said holder portion (11), each card being electrically connected to a respective one of said two contact means (7,8).
3. An adapter as defined in claim 1 or 2, c h a r a c t e r i z e d in that said at least one circuit card (25,26) is provided with an electrically conducting strip (26b) in the respective lower edge portion, each strip making contact with a respective, resilient one of said two contact means (7,27 and 8,28).
4. An adapter as defined in claims 2 and 3, c h a r a c t e r i z e d in that each one of said two contact means comprises a sleeve portion (7,8) at. the underside of said base part (9), said sleeve portion being dimensioned to be fitted onto an upright terminal head (5,6) and, in electrical connection therewith, at least one resilient tongue member (27,28) located at the upper side of said base part (9).
5. An adapter as defined in claim 3 or 4, c h a r a c t e r i z e d in that said resilient contact means (27,28) comprises at least two tongue members (27a-c, 28a-c) situated on each side of the associated circuit card (25,26), said at least two tongue members also serving to mechanically hold the lower portion of the card in a desired position.
6. An adapter as defined in claim 5, c h a r a c t e r i z e d in that said resilient contact means comprises three tongue members (27a-c, 28a-c) displaced along the longitudinal edge of the card (25,26), two tongue members (27a, 27c and
28a, 28c) being located on one side of the card and the third tongue member (27b and 28b) being located longitudinally therebetween on the other side of the card.
7. An adapter as defined in any one of the preceding claims, c h a r a c t e r i z e d in that said base part (9) is
securable in said lamp fitting (B) by means of screw fasteners (23) and in that said cover part (10) is securable onto said base part (9) by means of a central screw fastener (14), the screw head of which is located in the bottom (16) of said lamp holder portion (11).
8. An adapter as defined in claim 7, c h a r a c t e r i z e d in that said base part is a plate (9) and in that said cover part (10) has a lower rim portion (10a) fitting onto the periphery of said plate.
9. An adapter as defined in claim 8, c h a r a c t e r i z e d in that said plate (9) is substantially circular.
10. An adapter as defined in claim 9, c h a r a c t e r i z e d in that said cover part (10) is substantially cylindrical.
PCT/SE1989/000728 1988-12-16 1989-12-13 Adapter for a compact discharge lamp in a lamp fitting WO1990007209A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8804560-4 1988-12-16
SE8804560A SE462938B (en) 1988-12-16 1988-12-16 ADAPTER INTENDED TO REPLACE A CONVENTIONAL LAMP MACHINE IN A LAMP LIGHT

Publications (1)

Publication Number Publication Date
WO1990007209A1 true WO1990007209A1 (en) 1990-06-28

Family

ID=20374263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1989/000728 WO1990007209A1 (en) 1988-12-16 1989-12-13 Adapter for a compact discharge lamp in a lamp fitting

Country Status (3)

Country Link
AU (1) AU4755490A (en)
SE (1) SE462938B (en)
WO (1) WO1990007209A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264401A (en) * 1992-05-30 1993-08-25 John Richard Archer Lamp holders for fluorescent lamps.
EP0652691A1 (en) * 1993-11-05 1995-05-10 Sung-Ho Cho A ballast device for a compact fluorescent lamp
EP1107395A2 (en) * 1999-12-07 2001-06-13 BJB GmbH & Co. KG Lamp socket
EP1175131A2 (en) * 2000-06-19 2002-01-23 Matsushita Electric Industrial Co., Ltd. Compact fluorescent lamp
US6641418B2 (en) * 2001-03-21 2003-11-04 Hirose Electric Co., Ltd. Lamp socket
EP1351559A3 (en) * 2002-04-02 2005-01-26 Siteco Beleuchtungstechnik GmbH Fastening system for electronic and/or mechanical components of a lighting device
WO2009121898A1 (en) * 2008-04-02 2009-10-08 Sebastian Bartlakowski Housing arrangement for an electronic attachment-ballast unit
EP2286490A2 (en) * 2008-06-12 2011-02-23 Light Sources, Inc. End cap, socket, and adaptors for use with a lamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414489A (en) * 1981-11-04 1983-11-08 North American Philips Electric Corp. Compact electric discharge lamp-and-ballast unit, and plug-in ballast module therefor
WO1985004769A1 (en) * 1984-04-09 1985-10-24 Nigg Juerg Process for releasibly connecting electric lighting apparatuses, adapter respectively ballast and circuit with a high frequency generator
EP0179473A2 (en) * 1984-10-25 1986-04-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Adapter for a single-base low-pressure discharge lamp
SE450798B (en) * 1985-03-08 1987-07-27 Lumalampan Ab ADAPTER FOR CONNECTING COMPACT LIGHTING TO STANDARDIZED LIGHT FITTINGS
US4683402A (en) * 1985-04-25 1987-07-28 Truman Aubrey Adaptors for fluorescent lamps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414489A (en) * 1981-11-04 1983-11-08 North American Philips Electric Corp. Compact electric discharge lamp-and-ballast unit, and plug-in ballast module therefor
WO1985004769A1 (en) * 1984-04-09 1985-10-24 Nigg Juerg Process for releasibly connecting electric lighting apparatuses, adapter respectively ballast and circuit with a high frequency generator
EP0179473A2 (en) * 1984-10-25 1986-04-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Adapter for a single-base low-pressure discharge lamp
SE450798B (en) * 1985-03-08 1987-07-27 Lumalampan Ab ADAPTER FOR CONNECTING COMPACT LIGHTING TO STANDARDIZED LIGHT FITTINGS
US4683402A (en) * 1985-04-25 1987-07-28 Truman Aubrey Adaptors for fluorescent lamps

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264401A (en) * 1992-05-30 1993-08-25 John Richard Archer Lamp holders for fluorescent lamps.
GB2264401B (en) * 1992-05-30 1996-05-08 John Richard Archer Lamp holders
EP0652691A1 (en) * 1993-11-05 1995-05-10 Sung-Ho Cho A ballast device for a compact fluorescent lamp
EP1107395A2 (en) * 1999-12-07 2001-06-13 BJB GmbH & Co. KG Lamp socket
EP1107395A3 (en) * 1999-12-07 2002-05-15 BJB GmbH & Co. KG Lamp socket
EP1175131A2 (en) * 2000-06-19 2002-01-23 Matsushita Electric Industrial Co., Ltd. Compact fluorescent lamp
EP1175131A3 (en) * 2000-06-19 2003-03-12 Matsushita Electric Industrial Co., Ltd. Compact fluorescent lamp
US6641418B2 (en) * 2001-03-21 2003-11-04 Hirose Electric Co., Ltd. Lamp socket
EP1351559A3 (en) * 2002-04-02 2005-01-26 Siteco Beleuchtungstechnik GmbH Fastening system for electronic and/or mechanical components of a lighting device
WO2009121898A1 (en) * 2008-04-02 2009-10-08 Sebastian Bartlakowski Housing arrangement for an electronic attachment-ballast unit
EP2286490A2 (en) * 2008-06-12 2011-02-23 Light Sources, Inc. End cap, socket, and adaptors for use with a lamp
EP2286490A4 (en) * 2008-06-12 2013-03-13 Light Sources Inc End cap, socket, and adaptors for use with a lamp

Also Published As

Publication number Publication date
AU4755490A (en) 1990-07-10
SE8804560L (en) 1990-06-17
SE462938B (en) 1990-09-17
SE8804560D0 (en) 1988-12-16

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