GB2469098A - Halogen lamp with releasable envelope. - Google Patents

Halogen lamp with releasable envelope. Download PDF

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Publication number
GB2469098A
GB2469098A GB0905687A GB0905687A GB2469098A GB 2469098 A GB2469098 A GB 2469098A GB 0905687 A GB0905687 A GB 0905687A GB 0905687 A GB0905687 A GB 0905687A GB 2469098 A GB2469098 A GB 2469098A
Authority
GB
United Kingdom
Prior art keywords
lamp
envelope
electric lamp
formation
region
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
GB0905687A
Other versions
GB0905687D0 (en
GB2469098B (en
Inventor
Trevor Grote
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.)
BRITISH ELECTRIC LAMPS
Original Assignee
BRITISH ELECTRIC LAMPS
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 BRITISH ELECTRIC LAMPS filed Critical BRITISH ELECTRIC LAMPS
Priority to GB0905687A priority Critical patent/GB2469098B/en
Publication of GB0905687D0 publication Critical patent/GB0905687D0/en
Publication of GB2469098A publication Critical patent/GB2469098A/en
Application granted granted Critical
Publication of GB2469098B publication Critical patent/GB2469098B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/04Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00Coupling 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
    • H01R33/05Two-pole devices
    • H01R33/06Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00Coupling 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
    • H01R33/05Two-pole devices
    • H01R33/22Two-pole devices for screw type base, e.g. for lamp
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00Coupling 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
    • H01R33/94Holders formed as intermediate parts for linking a counter-part to a coupling part

Abstract

An electric lamp device includes a wall 20 forming a single generally cylindrical cavity 18 for receiving and engaging a mains halogen lamp 4, the wall having a formation 5 for releasable connection to a transparent or translucent envelope. The lamp engages with light fittings via screw thread (Edison screw fitting) or bayonet structure, whereas the envelope can have the form of a candle lamp, a spherical (or ball) lamp, or a conventional incandescent lamp.

Description

I
Lighting Device The present invention relates to the field of lighting. An embodiment relates to an electric lamp device and another to an electric lamp assembly.
There is currently a demand for lower energy lighting, and this demand is met to some extent by compact fluorescent lamps.
However the light emitted by such lamps may not be what is preferred by io users; moreover there is a need for smaller lamps that the compact fluorescent lamps available at this time.
It is already known to provide a mains halogen lamp with an external glass envelope that substantially matches conventional candle lamps.
According to one aspect there is provided an electric lamp device that comprises a base portion, having a first end region with terminals for connection to a conventional lighting socket and a second opposing end region forming a socket for receiving a mains halogen lamp and for electrical connection to a said lamp, the base portion having a formation for releasab'e connection to a transparent or translucent envelope.
The base portion may comprise a ceramic body.
The formation may comprise an external screw thread.
The first end region may include a screw thread for engagement with a light fitting; it may alternatively include a bayonet structure for a bayonet fitting.
In a second aspect there is provided an electric lamp assembly having a first formation for electrical connection to a light socket, a second formation for engaging a halogen lamp and a third formation for releasable fastening of a an envelope, the assembly further comprising a said envelope secured to the third formation.
The envelope may be frosted; it may have the form of a candle lamp, a spherical lamp. It may be coloured. It may have one or more ventilation holes, be made of glass or any suitable material, be transparent or with any decorative finish. It may be of any shape with smooth or moulded finish.
An embodiment of the invention will now be described with reference to the io accompanying drawings: Figure 1 shows an exploded view of an embodiment of a lamp assembly Figure 2 shows a part-assembled lamp assembly Figure 3 shows a fullyassembled electric lamp assembly embodying the invention; Figure 4 shows a sectional view through an electric lamp assembly embodying the invention; and Figures 5-7 show some examples of alternative envelope forms useable with the lamp device shown in Figures 1-3.
In the figures, like reference signs show like parts.
Starting with Figure 1, a lamp assembly ioo includes an electric lamp device 101 and an envelope 2. The lamp device 101 has a base portion 6 which has a first region 6a having a first formation 7 for electrical connection to a conventional mains light socket (not shown). In this embodiment the electric connection is an Edison screw connection and hence the first formation 7 has an external screw thread 7a of metal so as to contact with the internal screw of the light socket. The base portion 6 is formed of a ceramic material and is generally cylindrical in form. The first region 6a extends into a second region 11 that is also generally cylindriCal is co-axial with the first region Ga and has a greater diameter than that of the first region Ga. The second region 11 extends into a third region 5, being an envelope support and connection region. The third region 5 is of slightly reduced diameter compared to the second region 11 and is co-axial with the remainder of the base portion. The envelope connection portion 5 carries a formation, in this case an external screw thread 5a, for releasable connection to a translucent envelope 2.
As will be more clearly seen in Figure 4, the base portion also has a second formation 20 for engaging and holding a halogen lamp 4.
The envelope 2 in the present embodiment has the form of a candle lamp and is made of glass. It has an internally-threaded region 3 whose threads form the counterparts to the threads 5a. In this embodni'eflt there is a ventilation hole I at the end of the candle lamp. In this embodiment the glass of the envelope 2 is frosted so as to provide translucence without true transparency.
Referring to Figure 2 the halogen lamp 4 is shown engaged in the second formation 20 and in this situation, again as will be seen in Figure 4, terminalS 12 of the halogen lamp engage with counterpart terminals 9 (see Figure 4) so that the halogen lamp is both electrically and physically connected to the base portion 6.
Turning to Figure 3 the envelope 2 has been screwed on by hand to the base portion 6 so as to form a lamp that is close to identical in appearance to a conventional candle lamp.
Turning now to Figure 4, in which the halogen lamp 4 is shown in phantom, it will be seen that the base portion 6 in this embodiment consists of two parts 5, 6. Electrical conductors 8a and 8b connect respectively to an end-terminal region 21 of the first formation and to the external thread 7 of the first formation. The electrical conductors are carried via passageWayS 17 through an insulating body portion 6a and open into a cavity I 8 defined by the walls of the formation. The cavity 18 is designed to receive the halogen lamp 4.
The electrical conductors 8a and 8b extend to terminals 9 that engage with the terminal posts of the halogen lamp 4.
Figure 5 shows an envelope that is similar to that of a conventional incandescent lamp. As in other embodiments, the envelope may be coloured, or "pearl" or clear.
Figure 6 shows a bent tip candle lamp and Figure 7 shows a so-called "ball" or spherical lamp envelope.
An embodiment of the present invention has now been described.
In other embodiments the lamp holder portion 5 can be selected to engage with the desired halogen lamp. Among the types of connectors that are envisaged are 09, G4, GY6, ElO, E12, E14, E27, B15, B22, GUIO, GU53. In the embodiment shown the body 6 is connected to the lamp holder 5 via adhesives. However the connection between the two may be of any desired means including screws, bulbs and rivets.
The Edison screw fitting shown in the figures can be selected as desired for the relevant application and environment. Wherein Edison screw connection is provided the external threaded material may be covered with aluminium brass, steel or any other suitable material.
In other embodiments, a bayonet fitting is provided.
In the present embodiment the conductors 8a and 8b are lengths of brass sheet material. However if desired they may be replaced by cables or wires and in those cases a different terminal arrangement to that shown in Figure 2 may be required. The skilled person will be aware of how to effect this.
In the described embodiment, the envelope has an internal screw thread for connection to an external screw thread of the lamp device. This may be reversed, so that the envelope has an external thread and the base portion an internal thread. In other embodiments, different connection systems may be used -for example a twist lock system or bayonet system.
There are a number of advantages to the present invention. Firstly, when the lamp 4 fails it is possible for the user to unfasten the envelope 2 and replace it with a new lamp.
Secondly it is possible to mass produce the base parts and to assemble those without requiring them to be irrevocably mated with any particular type of envelope. This provides greater flexibility in manufacture and in sale. Thirdly the fact that only the lamp 4 need be discarded in the event of failure of the lamp has better environmental implications than would occur if the entire lamp assembly needed to be replaced each time.
The invention is not restricted to the features of the embodiments shown or described.

Claims (9)

  1. Claims 1. An electric lamp device comprising a base portion, having a first end region with terminals for connection to a conventional lighting socket and a second opposing end region forming a socket for receiving a mains halogen lamp and for electrical connection to a said (amp, the base portion having a formation for releasable connection to a transparent or translucent envelope.
  2. 2. An electric lamp device according to claim 1 wherein the base portion comprise a ceramic body.
  3. 3. An electric lamp device according to claim 1 or 2 wherein the formation comprises an external screw thread.
  4. 4. An electric lamp device according to any preceding claim wherein the first end region has a screw thread for engagement with a light fitting.
  5. 5. An electric lamp device according to claim 1, 2 or 3, wherein the first end region has a bayonet structure for a bayonet fitting.
  6. 6. An electric lamp assembly having a first formation for electrical connection to a light socket, a second formation for engaging a halogen lamp and a third formation for releasable fastening of a an envelope, the assembly further comprising a said envelope secured to the third formation.
  7. 7. An electric lamp assembly according to claim 6 wherein the envelope is one or both of frosted and coloured.
  8. 8. An electric lamp assembly according to claim 6 or 7 wherein the envelope has the form of one of a candle lamp, a spherical lamp and a conventional incandescent lamp.Amendments to the claims have been filed as follows Claims 1. An electric lamp device comprising a base portion, the base portion having: a first end region with terminals for connection to a conventional lighting socket; and a second opposing end region including a wall forming a single generally cylindrical cavity for receiving and engaging a mains halogen lamp, the wall having a formation for releasable connection to a transparent or translucent envelope, wherein the base portion provides electrical connections for a said lamp.2. An electric lamp device according to claim I wherein the cavity is configured to receive and engage an outer periphery of a body of a said lamp.3. An electric lamp device according to claim 1 wherein the base portion comprises a ceramic body.4. An electric lamp device according to claim 1, 2 or 3 wherein the formation comprises an external screw thread.5. An electric lamp device according to any preceding claim wherein the first end region has a screw thread for engagement with a light fitting.6. An electric lamp device according to claim 1, 2, 3 or 4 wherein the first end region has a bayonet structure for a bayonet fitting. S...7. An electric lamp assembly comprising an electric lamp device according to any preceding claim and inciuding a transparent or translucent v.* * envelope connected to the formation of the wall.S *SS* *. 30 8. An electric lamp assembly according to claim 7 wherein the envelope is one or both of frosted and coloured.
  9. 9. An electric lamp assembly according to claim 7 or 8 wherein the envelope has the form of one of a candle lamp, a spherical lamp and a conventional incandescent lamp. S....SS -. * *S * S * *S S ** i * . .S
GB0905687A 2009-04-01 2009-04-01 Lighting device Expired - Fee Related GB2469098B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0905687A GB2469098B (en) 2009-04-01 2009-04-01 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0905687A GB2469098B (en) 2009-04-01 2009-04-01 Lighting device

Publications (3)

Publication Number Publication Date
GB0905687D0 GB0905687D0 (en) 2009-05-20
GB2469098A true GB2469098A (en) 2010-10-06
GB2469098B GB2469098B (en) 2011-09-28

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Family Applications (1)

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GB0905687A Expired - Fee Related GB2469098B (en) 2009-04-01 2009-04-01 Lighting device

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440467A (en) * 1981-05-29 1984-04-03 Armando Vologni Bulb socket and cover assembly
US4816977A (en) * 1988-02-16 1989-03-28 Rcs Industries, Inc. Lamp with removable bulb capsule
ES2073979A2 (en) * 1993-03-03 1995-08-16 Avila Jesus Quintanilla Fitting with standard base for low voltage halogen bulbs.
DE19707048A1 (en) * 1996-11-29 1998-06-04 Holzer Walter Prof Dr H C Ing Shockproof lampholder and adaptor system for lamp
WO2006027729A1 (en) * 2004-09-10 2006-03-16 Koninklijke Philips Electronics N.V. Halogen lamps
WO2008102181A1 (en) * 2007-02-23 2008-08-28 John Peter Holland Lighting unit housing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2456557A (en) * 2008-01-21 2009-07-22 Richard Talbot-Smith Light cap conversion unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440467A (en) * 1981-05-29 1984-04-03 Armando Vologni Bulb socket and cover assembly
US4816977A (en) * 1988-02-16 1989-03-28 Rcs Industries, Inc. Lamp with removable bulb capsule
ES2073979A2 (en) * 1993-03-03 1995-08-16 Avila Jesus Quintanilla Fitting with standard base for low voltage halogen bulbs.
DE19707048A1 (en) * 1996-11-29 1998-06-04 Holzer Walter Prof Dr H C Ing Shockproof lampholder and adaptor system for lamp
WO2006027729A1 (en) * 2004-09-10 2006-03-16 Koninklijke Philips Electronics N.V. Halogen lamps
WO2008102181A1 (en) * 2007-02-23 2008-08-28 John Peter Holland Lighting unit housing

Also Published As

Publication number Publication date
GB2469098B (en) 2011-09-28
GB0905687D0 (en) 2009-05-20

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170401