EP1577921A1 - Leuchtstofflampe mit verringerter Abschattung - Google Patents

Leuchtstofflampe mit verringerter Abschattung Download PDF

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Publication number
EP1577921A1
EP1577921A1 EP05101984A EP05101984A EP1577921A1 EP 1577921 A1 EP1577921 A1 EP 1577921A1 EP 05101984 A EP05101984 A EP 05101984A EP 05101984 A EP05101984 A EP 05101984A EP 1577921 A1 EP1577921 A1 EP 1577921A1
Authority
EP
European Patent Office
Prior art keywords
lamp
carrier disk
circuit board
rear housing
ballast
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
EP05101984A
Other languages
English (en)
French (fr)
Other versions
EP1577921B1 (de
Inventor
Onn Fah Mass Technology(H.K)Ltd. Room 2902-6 Foo
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.)
Mass Technology HK Ltd
Original Assignee
Mass Technology HK Ltd
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 Mass Technology HK Ltd filed Critical Mass Technology HK Ltd
Publication of EP1577921A1 publication Critical patent/EP1577921A1/de
Application granted granted Critical
Publication of EP1577921B1 publication Critical patent/EP1577921B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path
    • 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
    • H01J61/34—Double-wall vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/56—One or more circuit elements structurally associated with the lamp

Definitions

  • This present invention relates to an illuminative fluorescent lamp and, in particular, to a compact fluorescent lamp capable of all-rounded illumination throughout the whole lamp body.
  • the first object of the present invention is to provide an enveloped fluorescent lamp capable of all-rounded illumination, of light emitted by the lamp tube, throughout the whole lamp body, except the lamp base.
  • the second object of the present invention is to provide an enveloped compact fluorescent lamp with small dimension, yet capable of all-rounded illumination throughout the whole lamp body, except the lamp base.
  • the all-rounded illumination enveloped fluorescent lamp includes a lamp envelop is made with light translucent materials, lamp tube, lamp carrier disk, ballast set on the circuit board, rear housing and lamp base.
  • the lamp tube is fixed on the proximate end of lamp carrier disk;
  • the ballast circuit board is set on the distal end of the lamp carrier disk;
  • the ballast is connected to the lamp tube and lamp base;
  • the lamp carrier disk and circuit board are fixed and encapsulated in the space connecting the lamp envelop and the rear housing, such that the lamp envelop contains the lamp tube and the rear housing contains the ballast; and the lamp base is fixed firmly on the tail portion of the rear housing.
  • the light translucent materials used for the lamp carrier disk, circuit board and rear housing described previously enable light irradiating to the rear part of the fluorescent lamp from lamp tube to penetrate through the rear housing via the lamp carrier disk and circuit board; or, the circuit board can be set perpendicularly to the lamp carrier disk to enable light irradiating to the rear part of the fluorescent lamp from lamp tube to penetrate through the rear housing via the lamp carrier disk even if circuit board has no light transmission. Consequently, the rear housing and the lamp envelop together form an illumination body with light transmission.
  • the lamp carrier disk described previously is made of transparent PC plastic; the circuit board is made of transparent fiberboard; and the rear housing is made of transparent PC plastic with added colour powder.
  • the lamp carrier disk is parallel with the circuit board and projection of the circuit board on the axial line of the whole lamp is smaller than that of the lamp tube.
  • the board made of light translucent materials may be set in parallel between the circuit board and lamp carrier disk, and the projection of the segregation board on the axial line of the whole lamp is smaller than that of the lamp tube.
  • the axial line of the lamp tube described previously superposes with that of the whole lamp and the tail of the lamp tube is conglutinated on the proximate end of the lamp carrier disk; the ballast is made by surface mount procedure with small dimension components and surface mount components and thus some of its components are mounted into the inner space of lamp base.
  • the axial line of lamp tube is perpendicular to that of the whole lamp, and its waist is fixed on the proximate end of the lamp carrier disk with metal clips; the ballast is made by surface mount procedure with small dimension components and surface mount components and thus some of its components are mounted into the inner space of lamp base.
  • the all-rounded illumination enveloped fluorescent lamp of the present invention abandons an old expression which exist in this field for a long time, namely "to harmonize the appearance and aesthetic quality, the inner ballast must be covered and rear housing must be made with materials having no light transmission and without considering light loss from the distal end of lamp body".
  • the light translucent materials used for lamp carrier disk fixing lamp tube, segregation board segregating wires, circuit board of ballast and rear housing enable light emitted by lamp tube to penetrate through the rear housing via the lamp carrier disk, segregation board and circuit board. As a result, the whole lamp body is illuminant when the lamp is turned on. Thus more light emitted by the lamp tube penetrates through and increases illumination effect.
  • the rear housing is made of PC plastic with added proper amount of colour powder to enhance good light transmission property but not to the extent of being transparent, thus it still covers the inner ballast so that the beautiful appearance of the lamp is maintained before power is turned on and makes the inner ballast not to be so conspicuous when power is turned on.
  • the rear housing appears in white; irradiated light becomes more beautiful with its softness and harmony with the colour of the lamp envelop.
  • a all-rounded illumination enveloped fluorescent lamp it can eliminate the inevitable darkness zone which is common among the existing enveloped fluorescent lamps, and still displays aesthetic quality and illumination effect of the lamp adequately.
  • the ballast circuit board is installed perpendicularly on the distal end of the lamp carrier disk or in parallel setting with the lamp carrier disk and circuit board with projection of circuit board on the axial line of the whole lamp being smaller than that of the lamp tube, amount of light penetration through the rear housing is increased further.
  • compact lamp tube with structure of SLU or SL or 3U improved type or 4SL having its tail conglutinated on the lamp carrier disk or compact lamp tube with structure of 2SL fixed on the lamp carrier disk with metal clips, and by combining ballast made by surface mount procedure with small dimension components and surface mount components to allow the internal space to be used fully and by mounting some of the components into the inner space of lamp base, the length and diameter of whole lamp can be reduced efficiently.
  • Lamp tube 2 is a 4SL-type compact lamp tube, and matches with lamp envelop 1, with its tail conglutinated firmly on the proximate end of lamp carrier disk 3 made by transparent PC plastic and its axial line superposing with the axial line of the whole lamp.
  • Circuit board 61, made by opaque fiberboard, of ballast 6 is fixed perpendicularly on the distal end of lamp carrier disk 3.
  • the trumpet-shape rear housing 7 having slot 71 at the front portion of its opening and E27 standard-type lamp base 9 installed firmly on its tail portion is made of transparent PC plastic with added ivory-white colour powder.
  • the convex edge of lamp carrier disk 3 is locked on the slot 71 of rear housing 7; lamp carrier disk 3 and circuit board 61 installed on its distal end are fixed thereon fittingly.
  • the opening on proximate end of rear housing 7 contains the opening of distal end of lamp envelop 1. All of these connection areas are agglutinated together with glue 4 for sealing.
  • the lamp carrier disk 3 (segregation board 5 was deleted) and circuit board 61 are fixed and encapsulated in the space connecting with lamp envelop 1 and rear housing 7 thus lamp envelop 1 contains lamp tube 2 and rear housing 7 contains ballast 6.
  • the rear housing 7 in this example is usually ivory-white and harmonizing with the colour of lamp envelop 1, thus enabling lamp tube 2 and ballast 6 not to be seen.
  • circuit board 61 With power on, although circuit board 61 has no light transmission, enough space making light through between the ballast on the distal end of lamp carrier disk 3 and rear housing 7 allows light irradiating to the rear part of the fluorescent lamp from the lamp tube to penetrate through rear housing 7 via the lamp carrier disk 3 due to the circuit board 61 being oriented perpendicularly to the lamp carrier disk 3.
  • a illuminant body with light transmission is formed with rear housing 7 and lamp envelop 1 and viewers cannot see ballast 6.
  • Lamp tube 2 is a 3U improved-type or compact lamp tube and matches with lamp envelop 1, with its tail conglutinated and fixed on the proximate end of lamp carrier disk 3 made by transparent PC plastic and its axial line superposing with the axial line of the whole lamp.
  • Segregation board 5 with segregating property made of transparent PC plastic is parallelly installed at the inner space of lamp carrier disk 3
  • circuit board 61 of ballast 6 is parallelly installed at the distal end of lamp carrier disk 3.
  • Circuit board 61 is made by transparent fiberboard, and the projection of it on the axial line of the whole lamp is smaller than that of lamp tube 2 and much smaller than that of lamp carrier disk 3.
  • the ballast 6 is made by surface mount procedure with small dimension components and surface mount components connects lamp tube 2 and lamp base 9, with some of its components mounted into the inner space of lamp base 9.
  • the trumpet-shape rear housing 7, having relatively longer tail and is made of transparent PC plastic with added colour powder, is fixed on the lamp base 9 made of E14 standard-type, and its opening on the proximate end has slot 71.
  • the convex edge of lamp carrier disk 3 locked in the slot 71 of rear housing 7 makes the lamp carrier disk 3, segregation board 5 and circuit board 61 installed on the distal end of lamp carrier disk 3 to be fixed on this position fittingly.
  • the opening on proximate end of rear housing 7 contains the opening on the tail of lamp envelop 1.
  • lamp carrier disk 3, segregation board 5 and circuit board 61 are fixed and encapsulated in the space connecting to lamp envelop 1 and rear housing 7 thus lamp envelop 1 contains lamp tube 2 and rear housing 7 contains ballast 6.
  • circuit board 61 With the projection of circuit board 61 on the axial line of the whole lamp being smaller than those of lamp tube 2 and lamp carrier disk 3, part of the light emitted rearward by lamp tube 2 irradiates to the rear housing 7 through lamp carrier disk 3, segregation board 5, circuit board 61 and the space among the components on the circuit board 61. Part of this light irradiates to the rear housing 7 through lamp carrier disk 3 other than circuit board 61, thus more light penetrates through rear housing 7 when the power is turned on.
  • Lamp tube 2 is a 2SL-type compact lamp tube and matches with lamp envelop 1 .
  • Lamp tube 2 is fixed on the proximate end of lamp carrier disk 3 made by transparent PC plastic with metal clip and the axial line of the lamp tube is perpendicular to the axial line of the whole lamp.
  • Circuit board 61, made by transparent fiberboard, of ballast 6 is fixed parallelly on the distal end of lamp carrier disk 3. The projection of circuit board on the axial line of whole lamp is smaller than that of lamp tube 2 and much smaller than that of lamp carrier disk 3.
  • the ballast 6 is made by surface mount procedure with small dimension components and surface mount components connects to lamp tube 2 and lamp base 9, with some of its components mounted into the inner space of lamp base 9.
  • the trumpet-shape rear housing 7, having relatively longer tail and is made of transparent PC plastic with added colour powder, is fixed on the lamp base 9 made of E14 standard-type, and its opening on the proximate end has slot 71.
  • the convex edge of lamp carrier disk 3 locked in the slot 71 of rear housing 7 makes the lamp carrier disk 3 and circuit board 61 installed on the distal end of lamp carrier disk 3 to be fixed on this position fittingly.
  • the opening on proximate end of rear housing 7 contains the opening on the tail portion of lamp envelop 1. All of these connections are agglutinated together with glue 4 for sealing.
  • lamp carrier disk 3 (segregation board 5 was deleted) and circuit board 61 are fixed and encapsulated in the space connecting to lamp envelop 1 and rear housing 7 thus lamp envelop 1 contains lamp tube 2 and rear housing 7 contains ballast 6.
  • This example illustrates the same principle of light penetrating through rear housing 7 as the last one; however, the axial line of lamp tube 2 being perpendicular to that of the whole lamp allows more and stronger light to irradiate to and penetrate through rear housing 7.
  • Example 1 Compared with Example 1, the shorter space containing circuit board 61 on the proximate end of rear housing 7 makes the length of whole lamp shorter. Yet, the style of parallel fixing lamp tube 2 on the proximate end of lamp carrier disk 3 with metal clip can also be employed in Example 1.
  • Lamp tube 2 is a SLU-structure compact lamp tube and matches with lamp envelop 1, with its tail conglutinated and fixed on the proximate end of lamp carrier disk 3 made by transparent PC plastic and its axial line superposing with the axial line of the whole lamp.
  • Segregation board 5 made of transparent PC plastic is installed at inner space of lamp carrier disk 3
  • ballast 6 is installed at the distal end of lamp carrier disk 3.
  • Circuit board 61 of ballast being parallel with lamp carrier disk 3 is made by transparent fiberboard, and the projection of it on the axial line of whole lamp is smaller than that of lamp tube 2 and much smaller than that of lamp carrier disk 3.
  • Segregation board 5 being parallelly set between circuit board 61 and lamp carrier disk 3 can segregate wires of lamp tube 2 and circuit board 61.
  • the ballast 6 is made by surface mount procedure with small dimension components and surface mount components connects to lamp tube 2 and lamp base 9, with some of its components mounted into the inner space of lamp base 9.
  • the trumpet-shape rear housing 7 is made of transparent PC plastic with added colour powder, and its tail is fixed on the lamp base 9 made of E27 standard-type.
  • the lamp base 9 in this example includes metal thread shell 91, metal touching piece 92, _insulation piece 93 between metal thread shell 91 and metal touching piece 92, tight bolt 94 sheathed in the insulation piece 93 and connecting the end portion of rear housing 7 and sealed loop 95 between thread shell 91 and insulation piece 93.
  • a rubber loop 8 is set at the connection point between the tail portion of rear housing 7 and the opening on proximate end of thread shell 91 of lamp base 9.
  • Slot 71 is set at the opening on the proximate end of rear housing 7. The convex edge of lamp carrier disk 3 locked in the slot 71 of rear housing 7 makes the lamp carrier disk 3, segregation board 5 and circuit board 61 installed on the distal end of lamp carrier disk 3 to be fixed on this position fittingly.
  • the opening on the proximate end of rear housing 7 contains the opening on the tail portion of lamp envelop 1. All of these connections are agglutinated together with glue 4 for sealing.
  • the lamp carrier disk 3, segregation board 5 and circuit board 61 are fixed and encapsulated in the space connecting with lamp envelop 1 and rear housing 7 thus lamp envelop 1 contains lamp tube 2 and rear housing 7 contains ballast 6.
  • circuit board 61 and segregation board 5 on the axial line of whole lamp being smaller than those of lamp tube 2 and lamp carrier disk 3, part of light emitted backward by lamp tube 2 irradiates to the rear housing 7 through lamp carrier disk 3, segregation board 5, circuit board 61 and the space among the components on the circuit board 61, and part of this light irradiates to the rear housing 7 through lamp carrier disk 3 other than circuit board 61, thus more light penetrates through rear housing 7 after the power is turned on.
  • Compact style lamp tube with SL structure may be used in this example.
  • the invention scope extends, firstly, to all light translucent materials used for lamp carrier disk fixing lamp tube, segregation board segregating wires, circuit board of ballast and rear housing makes light emitted by lamp tube to penetrate through the rear housing via the lamp carrier disk, segregation board and circuit board, which, consequently, illuminates the whole lamp body as the lamp is turned on. It extends particularly to those rear housings made of PC plastic with added proper amount of colour powder with good light transmission property but not transparent.
  • the invention scope extends, secondly, to installing circuit board of ballast perpendicularly at the distal end of lamp carrier disk or lamp carrier disk being parallel with circuit board as well as the projection of circuit board on the axial line of whole lamp being smaller than that of lamp tube increases light transmission amount of rear housing.
  • the invention scope extends to using lamp tube with structure of SLU or SL or 3U improved-type or 4SL or 2SL, ballast made by surface mount procedure with small dimension components and surface mount components allow the limited internal space to be used fully and make the whole lamp more compact by mounting some of the components into the inner space of the lamp base.
  • E27 and E14 standard lamp base used in the examples disclosed herein are not intended to be restrictive. Based on the market requirements, the tail structure of the rear housing may be modified partially depending on the lamp base used.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP20050101984 2004-10-22 2005-03-14 Leuchtstofflampe mit verringerter Abschattung Not-in-force EP1577921B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200420083896 2004-03-15
CN200410083896 2004-10-22

Publications (2)

Publication Number Publication Date
EP1577921A1 true EP1577921A1 (de) 2005-09-21
EP1577921B1 EP1577921B1 (de) 2007-05-02

Family

ID=34847291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050101984 Not-in-force EP1577921B1 (de) 2004-10-22 2005-03-14 Leuchtstofflampe mit verringerter Abschattung

Country Status (1)

Country Link
EP (1) EP1577921B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008140894A1 (en) 2007-05-10 2008-11-20 General Electric Company Compact fluorescent lamp with outer envelope and method for manufacturing
WO2008145564A1 (de) * 2007-05-25 2008-12-04 Osram Gesellschaft mit beschränkter Haftung Unterteil für eine elektrische lampe, elektrische lampe und anordnung mit einer elektrischen lampe und einer lampenfassung
WO2013182939A1 (en) * 2012-06-05 2013-12-12 Koninklijke Philips N.V. A base for an electrical lamp and a method of assembling a base for an electrical lamp
WO2014140983A1 (en) * 2013-03-11 2014-09-18 Koninklijke Philips N.V. A base for an electrical lamp and a method of assembling a base for an electrical lamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800553A (en) * 1954-04-17 1958-08-27 John Schneider Improvements in or relating to fittings and mountings for electric lamps
US4109303A (en) * 1976-07-26 1978-08-22 Joseph F. Hetherington Fluorescent light fixture
JPS6210832A (ja) * 1985-07-08 1987-01-19 Toshiba Corp 環形螢光ランプ用口金
US5828170A (en) * 1995-09-29 1998-10-27 Toshiba Lighting & Technology Corporation Fluorescent lamp unit and lighting apparatus having the fluorescent lamp unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800553A (en) * 1954-04-17 1958-08-27 John Schneider Improvements in or relating to fittings and mountings for electric lamps
US4109303A (en) * 1976-07-26 1978-08-22 Joseph F. Hetherington Fluorescent light fixture
JPS6210832A (ja) * 1985-07-08 1987-01-19 Toshiba Corp 環形螢光ランプ用口金
US5828170A (en) * 1995-09-29 1998-10-27 Toshiba Lighting & Technology Corporation Fluorescent lamp unit and lighting apparatus having the fluorescent lamp unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 174 (E - 513) 4 June 1987 (1987-06-04) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008140894A1 (en) 2007-05-10 2008-11-20 General Electric Company Compact fluorescent lamp with outer envelope and method for manufacturing
US7459856B1 (en) 2007-05-10 2008-12-02 General Electric Company Compact fluorescent lamp with outer envelope and method for manufacturing
WO2008145564A1 (de) * 2007-05-25 2008-12-04 Osram Gesellschaft mit beschränkter Haftung Unterteil für eine elektrische lampe, elektrische lampe und anordnung mit einer elektrischen lampe und einer lampenfassung
WO2013182939A1 (en) * 2012-06-05 2013-12-12 Koninklijke Philips N.V. A base for an electrical lamp and a method of assembling a base for an electrical lamp
US9644798B2 (en) 2012-06-05 2017-05-09 Philips Lighting Holding B.V. Base for an electrical lamp that prevents rotation and a more efficient method of assembling a base for an electrical lamp
WO2014140983A1 (en) * 2013-03-11 2014-09-18 Koninklijke Philips N.V. A base for an electrical lamp and a method of assembling a base for an electrical lamp
CN105143754A (zh) * 2013-03-11 2015-12-09 皇家飞利浦有限公司 电灯用基部和组装电灯用基部的方法
US9702530B2 (en) 2013-03-11 2017-07-11 Philips Lighting Holding B.V. Base for an electrical lamp and a method of assembling a base for an electrical lamp
CN105143754B (zh) * 2013-03-11 2018-12-21 飞利浦照明控股有限公司 电灯用基部和组装电灯用基部的方法

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Publication number Publication date
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