EP2249375A1 - Leuchtstofflampe mit Reflektor - Google Patents

Leuchtstofflampe mit Reflektor Download PDF

Info

Publication number
EP2249375A1
EP2249375A1 EP10250796A EP10250796A EP2249375A1 EP 2249375 A1 EP2249375 A1 EP 2249375A1 EP 10250796 A EP10250796 A EP 10250796A EP 10250796 A EP10250796 A EP 10250796A EP 2249375 A1 EP2249375 A1 EP 2249375A1
Authority
EP
European Patent Office
Prior art keywords
reflection
lamp unit
fluorescent lamp
reflection cup
open end
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Withdrawn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
EP10250796A
Other languages
English (en)
French (fr)
Inventor
Onn Fah 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 EP2249375A1 publication Critical patent/EP2249375A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • H01J61/32—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
    • H01J61/025—Associated optical elements

Definitions

  • the present invention relates to a reflector fluorescent lamp unit, and more particularly relates to a compact reflector fluorescent lamp unit having a small beam angle for directional illumination.
  • halogen reflector lamps are commonly used in occasions that require concentrated and directional illumination such as malls, exhibitions, offices and homes. These halogen reflector lamps are formed with a tungsten filament as a light source, and have been widely used at present because they are characterized by a relatively small filament and a light lamp body.
  • the halogen reflector lamps have a drawback that the surface of their lamp bodies can reach a temperature of 300 C in use, thus cause a safety problem.
  • this type of halogen reflector lamps have a relatively low luminous efficacy which is only 10-20 lm/W and a relatively short lifespan which is only 1000-3000 hours.
  • a Chinese Utility Model Patent No. ZL200720000768.4 issued to the applicant of the present invention has disclosed a compact reflector fluorescent lamp unit that has simple and easy assembling structures and good heat dispersion to overcome the problems of the halogen reflector lamps and to replace the current halogen reflector lamps.
  • Directive 2005/32/EC of the European Parliament and the Council of the European Union states that "a reflector lamp is a lamp having at least 80% light output of its final light output within a solid angle (corresponding to a cone with angle of 120 )", which means that the reflector lamp should have at least 80% light output of its final light output within the beam angle of 120 of the reflector cup.
  • the compact reflector fluorescent lamp disclosed in the Chinese Utility Model Patent No. ZL200720000768.4 emits relatively wide-angle light, and therefore does not meet the requirement for directional lamp under Directive 2005/32/EC.
  • the present invention provides a new compact reflector fluorescent lamp unit which can concentrate a beam of light within a relatively small beam angle for the sake of directional illumination.
  • the reflector fluorescent lamp unit comprises a lamp cap, which is inserted onto a lamp holder and is connected to a power supply; an electronic ballast assembly having an input end coupled with the lamp cap through wire connection; a housing having a top on which the lamp cap is arranged; a circuit board having a plurality of electrical connection insertion holes, and the electronic ballast assembly being mounted on the circuit board so that the circuit board and the electronic ballast assembly are jointly installable in the housing; an intermediate plate having an upper surface on which a plurality of electrical connection pins are mounted, and having a lower surface on which protrusions and a hollow protrusion are mounted, the number of the electrical connection pins corresponding to the number of the electrical connection insertion holes; a lamp tube having a plurality of legs which are inserted into the electrical connection pins of the intermediate board so as to be coupled electrically with an output end of the electronic ballast assembly, and having an end which is snap-fitted into the hollow protrusion of the intermediate plate and held in the intermediate plate; a reflection cup
  • the segment which does not permit light reflection or permits reflection of a small portion of light is of annular configuration. According to preferred embodiments of the present invention, arranging the segment which does not permit light reflection or permits reflection of a small portion of light at the inner wall adjacent to the open end of the reflection cup can be achieved in the following two ways.
  • annular sleeve having an annular diameter and a taper matchable with a diameter and a taper of the corresponding inner wall of the reflection cup is arranged on the inner wall adjacent to the open end of the reflection cup, such that the annular sleeve is snugly attached onto the inner wall of the reflection cup.
  • the annular sleeve is formed to have black or dark color. Due to the fact that black or dark objects have the ability of light absorption, the arrangement of the annular sleeve does not permit light reflection or permits reflection of a small portion of light at the open end of the reflection cup, with the result that the reflector fluorescent lamp unit emits narrow-angle light to achieve the purpose of concentrated and directional illumination.
  • a layer of black or dark coating material is directly applied onto the inner wall of the open end of the reflection cup to form the segment which does not permit light reflection or permits reflection of a small portion of light at the open end of the reflection cup. This can also achieve the same effect as the above first way.
  • the reflection cup preferably has an internal surface having a high degree of fineness, and an external surface having a high degree of roughness.
  • the reflector fluorescent lamp unit of the invention enables the light emitting from the fluorescent lamp tube to be reflected by the inner wall of the reflector cup which is positioned above this segment only, thereby providing a reflection light output of small beam angle. This achieves the concentrated and directional illumination. Furthermore, the reflector fluorescent lamp unit of the present invention is an improvement relating to the compact reflector fluorescent lamp unit of the Chinese Utility Model Patent No. ZL200720000768.4 , and therefore is also good in heat dispersion.
  • Fig. 1 and Fig. 2 illustrate a preferred embodiment of a reflector fluorescent lamp unit 1 of the present invention.
  • the reflector fluorescent lamp unit 1 comprises a lamp cap 10, an electronic ballast assembly 20, a housing 30, a circuit board 40, an intermediate plate 50, a reflection cup 60, a lamp tube 70 and a transparent plate 80.
  • the lamp cap 10 is inserted onto a lamp holder (not shown) and is connected to a power supply.
  • the lamp cap 10 may adopt a two-pin type lamp cap or a screwed type lamp cap, and in the present embodiment, a two-pin type lamp cap, such as a GU10 lamp cap, is used as the lamp cap.
  • the electronic ballast assembly 20 has an input end coupled with the lamp cap 10 through wire connection, and can be used in combination with lamp tubes of various standards and model numbers.
  • the housing 30 is generally in the form of a step sleeve made of plastic material, which is composed of three superimposing step-tiers.
  • the upper and middle tiers are in a cylindrical shape, and the upper tier has a diameter smaller than that of the middle tier.
  • the lower tier is in a trumpet shape.
  • the lamp cap 10 is arranged atop the upper tier.
  • the circuit board 40 has four electrical connection insertion holes, each of which is formed by a hollow rivet made of a conducting material.
  • the electronic ballast assembly 20 is mounted on the circuit board 40 via fastenings or other coupling arrangements. After the mounting of the electronic ballast assembly 20 on the circuit board 40, they are jointly mounted into the housing 30.
  • the intermediate plate 50 is provided with electrical connection pins on an upper surface thereof, and the number of the electrical connection pins corresponds to the number of the electrical connection insertion holes of the circuit board 40, i.e. four electrical connection pins in this embodiment.
  • Two protrusions in axial symmetry and a hollow protrusion are arranged on a lower surface of the intermediate plate 50.
  • the hollow protrusion has a bore matchable with an end of the lamp tube.
  • the electrical connection pins of the intermediate plate 50 are plugged into the electrical connection insertion holes of the circuit board 40, respectively, such that an output end of the electronic ballast assembly 20 is coupled electrically to the lamp tube.
  • the intermediate plate 50 has four snap-fit legs arranged at an edge thereof which are coupled with four snap-fit members arranged on an inner wall of the bottom of the trumpet shaped lower tier of the housing, allowing the trumpet-shaped open end of the housing to be sealed by the intermediate board.
  • the reflection cup 60 is made of metal, preferably aluminum alloy materials.
  • An internal surface of the reflection cup has a high degree of fineness by means of polishing or chemical treatment, and an external surface of the reflection cup has a high degree of roughness by means of frosted finishing.
  • the reflection cup 60 has a cavity in which the lamp tube is received, and the cavity is shaped and sized such that it is matchable with the lamp tube to be used.
  • a top surface of the reflection cup 60 is provided with two assembly holes in axial symmetry and a notch, and the reflection cup 60 is fixed at the lower surface of the intermediate plate 50 by coupling the two assembly holes and the protrusions on the lower surface of the intermediate plate together and by coupling the notch and the hollow protrusion of the intermediate plate together.
  • the reflection cup further comprises an open end, the open end has an annular recess 601 arranged at an edge of an inner wall thereof.
  • the lamp tube 70 can adopt any kind of small fluorescent lamp tube, and is preferably selected from a 2SL type, 2WL type, or 4SL type compact fluorescent tube.
  • a 2SL2U type lamp tube is employed.
  • the end of the lamp tube is snap-fitted into the hollow protrusion of the intermediate plate 50 and held in the intermediate plate by glue dispensing.
  • the four legs at both ends of the lamp tube are inserted into the four electrical connection pins of the intermediate plate 50, respectively.
  • the transparent plate 80 has an annular boss at an edge thereof.
  • the transparent plate is fixed to the reflection cup by engaging the annular boss with the annular recess 601 arranged at the edge of the inner wall at the open end of the reflection cup and by glue dispensing.
  • the improvement of the present invention is that a segment which does not permit light reflection or permits reflection of a small portion of light is arranged at the inner wall adjacent to the open end of the reflection cup.
  • This segment can be implemented in the following two ways.
  • Fig. 3 and Fig. 4 show the first implementation of the segment which does not permit light reflection or permits reflection of a small portion of light.
  • the segment is of annular configuration and formed as an annular sleeve 90.
  • the annular diameter and the taper of the annular sleeve 90 are matchable with the diameter and the taper of the corresponding inner wall of the reflection cup 60, such that the annular sleeve 90 is snugly attached onto the inner wall of the bottom of the reflection cup 60.
  • the annular sleeve 90 has a boss 901 arranged at a bottom thereof which protrudes radially and outwardly.
  • the boss 901 can be engaged with the annular recess 601 at the edge of the inner wall of the open end of the reflection cup, and the boss and the transparent plate 80 are then jointly fixed on the inner wall of the reflection cup.
  • the annular sleeve 90 is made of a black or dark plastic material.
  • the annular sleeve 90 can be made of a metal material selected from iron, aluminum or alloy thereof having black or dark color.
  • a layer of black or dark coating 902 may be applied onto the inner surface of the plastic or metal annular sleeve 90 to provide the same purpose.
  • the annular sleeve 90 has a longitudinal vertical height of 2-30 mm.
  • Fig. 5 shows the second implementation of the segment which does not permit light reflection or permits reflection of a small portion of light.
  • the segment is of annular configuration and formed as a layer of coating 100 positioned on the inner wall of the open end of the reflection cup.
  • the layer of coating 100 can be formed by directly spraying a black or dark coating material to the inner wall of the open end at the bottom of the reflection cup 60.
  • the layer of coating 100 has a longitudinal vertical height of 2-30 mm.
  • a snap-fit and coupling mechanism or glue dispensing is respectively provided between the intermediate plate 50 and the housing 30, between the intermediate plate 50 and the circuit board 40, between the intermediate plate 50 and the reflection cup 60, and between the reflection cup 60 and the annular sleeve 90 together with the transparent plate 80, thereby allowing the reflection cup 60, the intermediate plate 50, the housing 30 and the annular sleeve 90 to be easily, reasonably, tightly and reliably assembled together.
  • the reflection cup 60 is made of aluminum alloy, and has an internal surface of high degree of fineness which facilitates the concentration of light beam of relatively high intensity at its center within a relatively small angle and an external surface of high degree of roughness which allows the heat to be effectively conducted and dissipated through the reflection cup.
  • the segment which does not permit light reflection or permits reflection of a small portion of light is arranged at the inner wall adjacent to the open end of the reflection cup 60, therefore, only an extremely small portion of light emitting from the lamp tube is refracted and reflected outwardly from the bottom of the reflection cup 60, thereby achieving the narrow-angle light output.
  • the compact reflector fluorescent lamp unit of the present invention possesses the features of high optical reflection efficiency, good heat dispersion, concentrated light beam of small angle.
  • the present invention provides a concentrated and directional fluorescent lamp unit.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP10250796A 2009-04-20 2010-04-20 Leuchtstofflampe mit Reflektor Withdrawn EP2249375A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910135336A CN101865367A (zh) 2009-04-20 2009-04-20 反射荧光灯装置

Publications (1)

Publication Number Publication Date
EP2249375A1 true EP2249375A1 (de) 2010-11-10

Family

ID=42635330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10250796A Withdrawn EP2249375A1 (de) 2009-04-20 2010-04-20 Leuchtstofflampe mit Reflektor

Country Status (2)

Country Link
EP (1) EP2249375A1 (de)
CN (1) CN101865367A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013012389A1 (en) * 2011-07-18 2013-01-24 Lim Kee Liew An electronic pl lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728988A1 (de) * 1995-02-21 1996-08-28 RIDI-LEUCHTEN GmbH Leuchte
US6068388A (en) * 1996-02-28 2000-05-30 Eppi Lighting, Inc. Dual reflector lighting system
JP2000285712A (ja) * 1999-03-30 2000-10-13 Toshiba Lighting & Technology Corp 電球形蛍光ランプおよび照明器具
US6619821B1 (en) * 1999-04-14 2003-09-16 Genlyte Thomas Group Llc High efficiency asymmetrical optical assembly
US20050116604A1 (en) * 2003-12-02 2005-06-02 Andrzej Bobel Energy efficient compact fluorescent reflector lamp
US20070258235A1 (en) * 2003-12-08 2007-11-08 The Coleman Company, Inc. Elliptical Reflector and Curved Lens System for a Portable Light
US20070258233A1 (en) * 2006-05-04 2007-11-08 Intense Lighting, Llc Single piece dual coating reflector recessed wall wash luminaire
EP1965406A2 (de) * 2007-02-14 2008-09-03 Mass Technology (H.K.) Ltd. Fluoreszierende Kompaktreflektorlampe mit guter Wärmedispersion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728988A1 (de) * 1995-02-21 1996-08-28 RIDI-LEUCHTEN GmbH Leuchte
US6068388A (en) * 1996-02-28 2000-05-30 Eppi Lighting, Inc. Dual reflector lighting system
JP2000285712A (ja) * 1999-03-30 2000-10-13 Toshiba Lighting & Technology Corp 電球形蛍光ランプおよび照明器具
US6619821B1 (en) * 1999-04-14 2003-09-16 Genlyte Thomas Group Llc High efficiency asymmetrical optical assembly
US20050116604A1 (en) * 2003-12-02 2005-06-02 Andrzej Bobel Energy efficient compact fluorescent reflector lamp
US20070258235A1 (en) * 2003-12-08 2007-11-08 The Coleman Company, Inc. Elliptical Reflector and Curved Lens System for a Portable Light
US20070258233A1 (en) * 2006-05-04 2007-11-08 Intense Lighting, Llc Single piece dual coating reflector recessed wall wash luminaire
EP1965406A2 (de) * 2007-02-14 2008-09-03 Mass Technology (H.K.) Ltd. Fluoreszierende Kompaktreflektorlampe mit guter Wärmedispersion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013012389A1 (en) * 2011-07-18 2013-01-24 Lim Kee Liew An electronic pl lamp

Also Published As

Publication number Publication date
CN101865367A (zh) 2010-10-20

Similar Documents

Publication Publication Date Title
US7632004B2 (en) LED night light with more than 1 optics means
US20130077285A1 (en) Lamp
US9395052B1 (en) Modular lighting assembly
US20050184667A1 (en) CCFL illuminated device and method of use
CA2490930A1 (en) Led lamp with central optical light guide
JP2010205553A (ja) 照明装置
US7771079B2 (en) Compact reflector fluorescent lamp with good heat dispersion
CN107631271B (zh) 一种透镜、光源模组、光源模组组合和照明装置
EP3208519A1 (de) Led-lampeneinheit
US10465859B2 (en) Tubular illuminating device having an integrated drive and lighting unit and method of assembling the tubular illuminating device
US20070236121A1 (en) High-intensity discharge lamp for spot lighting
JP2002208301A (ja) 固体形光源装置
US20090237922A1 (en) LED tube light
EP2249375A1 (de) Leuchtstofflampe mit Reflektor
US7153003B2 (en) Illumination apparatus for single-base lamps
SG181182A1 (en) Spiral lighting device with reflector
CN203517403U (zh) 照明用光源以及照明装置
US7358676B2 (en) Fluorescent light source
JP2012089496A (ja) 多重に巻かれた放電管を備えた放電ランプおよび放電ランプ用の防眩要素
CN201184552Y (zh) 管灯
US20050088844A1 (en) Modular fluorescent light fixture
CN210035099U (zh) Led间接照明灯具结构
CN208381799U (zh) 一种led灯芯柱、带保险电阻芯柱及带电源电阻芯柱
WO2005067553A2 (en) Improved illuminating device
US20100283372A1 (en) Lamp having contact members at its surrounding edge, and a lamp holder

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA ME RS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110511