WO2009154321A1 - Led fluorescent lamp - Google Patents

Led fluorescent lamp Download PDF

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Publication number
WO2009154321A1
WO2009154321A1 PCT/KR2008/004277 KR2008004277W WO2009154321A1 WO 2009154321 A1 WO2009154321 A1 WO 2009154321A1 KR 2008004277 W KR2008004277 W KR 2008004277W WO 2009154321 A1 WO2009154321 A1 WO 2009154321A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical connection
led
cover
heat sink
provided
Prior art date
Application number
PCT/KR2008/004277
Other languages
French (fr)
Inventor
Jung-Seok Park
Original Assignee
Msm Tech Co., 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
Priority to KR20080056451 priority Critical
Priority to KR10-2008-0056451 priority
Priority to KR1020080065398A priority patent/KR100907310B1/en
Priority to KR10-2008-0065398 priority
Application filed by Msm Tech Co., Ltd. filed Critical Msm Tech Co., Ltd.
Publication of WO2009154321A1 publication Critical patent/WO2009154321A1/en

Links

Classifications

    • 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
    • F21V31/00Gas-tight or water-tight arrangements
    • F21V31/005Sealing arrangements therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/27Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/104Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • 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
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

Provided is an LED fluorescent lamp comprising a circuit board on which light-emitting diodes (LED) are arranged and fixed at regular intervals; an LED driving means attached to a lower part of the circuit board and adapted to turn on/off the LEDs in response to signals being input from the outside; a diffusion cover provided on an upper part of the circuit board and diffusing the light emitted from the LEDs; a semi-cylindrical heat sink cover connected to the diffusion cover to form a fluorescent-type tube and having a plurality of heat sink fins formed on the outer periphery thereof; electrical connection means fitted to be connected to both ends of the combined diffusion cover and heat sink cover and outputting an LED-driving power supply to the LED driving means; and a finishing cap connected to an upper part of the electrical connection means and adapted to isolate the electrical connection means from the external environment, wherein the finishing cap is provided with a pair of power supply pins in electrical connection with the electrical connection means. Therefore, the present invention enables effective cooling of heat generated in LED devices and overcomes disadvantages associated with light directionality and rectilinearity of an LED light source.

Description

Description

LED FLUORESCENT LAMP

Technical Field

[1] The present invention relates to an LED fluorescent lamp. More specifically, the present invention relates to an LED fluorescent lamp which is capable of being easily used as an alternative to a currently available fluorescent lamp, through fabrication of a lamp using a light-emitting diode (LED) as a light source, in the form of a fluorescent lamp with conventional shape and dimensions.

[2]

Background Art

[3] Fluorescent lamps are light sources that have been widely used for a long time not only in signboard industries but also in lighting industries, because they are easily available from conventional supermarket stores or electrical and electronic repair shops, are inexpensive, and can also be easily installed without particular difficulty.

[4] However, the fluorescent lamps have various shortcomings such as need for frequent replacement due to the occurrence of black spots on the glass envelope and a short lifespan, limited design in colors and shapes, and use of fluorescent materials going against the trend of the lighting market seeking environmental friendliness. For these reasons, the fluorescent lamps are gradually being replaced with alternative light sources.

[5] One of the alternative light sources that lately is drawing the most attention is a light emitting diode (LED). With success in commercialization of red LEDs using a GaAsP semiconductor in 1962, GaAsP LEDs in conjunction with GaP:N green LEDs have been conventionally used as display light sources for electronic devices including information communication equipment.

[6] Further, full-color displays were realized with development of GaN green LEDs in the mid- 1990' s.

[7] LEDs may be used for various applications, such as liquid crystal display devices of mobile phones, keypad backlights, large electric bulletin boards for outdoor installation, traffic signal lamps, instrument panels and tail lights of motor vehicles, and warning and guide lights for harbors and bays, airports, and multistoried buildings.

[8] Further, LEDs are receiving a great deal of interest as a next-generation national strategic item because they exhibit advantages such as rapid processing speed and lower power consumption intrinsic to semiconductors, and high energy saving effects in conjunction with environmental friendliness.

[9] In addition, LEDs have a variety of excellent strengths such as feasibility of compact and small-sized construction, lower power consumption, 10-fold longer lifespan, and rapid response speed, as compared to conventional light sources such as traditional light bulbs. In addition, LEDs do not emit harmful waves such as UV rays, and are environmentally friendly due to no use of mercury (Hg) and other discharge gases.

[10] However, LEDs release energy in the form of heat as well as light, which consequently results in high susceptibility to a high temperature state. In order to cool the high temperature state of the device, some attempts have been made using an electric lamp with provision of a through-hole at the outside of an LED lamp. However, efficiency of the LED lamp having such a structure significantly decreases due to an inflow of dust or other harmful insects via the through-hole. Further, an LED lifespan may decrease due to exposure of the device to high temperature conditions resulting from internal heat generation of the device. To this end, intensive and extensive studies and experiments have been continuously attempted to cool heat generation of LEDs.

[11] Further, LED-emitted light exhibits directionality, so the region just below the LED is correspondingly very bright, but the surrounding therearound is relatively dim. For this reason, when it is intended to use an LED light source for conventional electric lamps, there is a need for a separate device which is capable of diffusing high-directivity light emitted from the LED

[12]

Disclosure of Invention

Technical Problem

[13] Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an LED fluorescent lamp which is designed to be capable of effectively removing heat generated in a light-emitting diode (LED), by configuring a portion of an outer case for isolation of the LED from the external environment into a heat sink member, upon fabrication of a fluorescent-type lamp using an LED as a light source.

[14] It is another object of the present invention to provide an LED fluorescent lamp which is designed to be capable of previously removing an afterimage phenomenon of the LED due to spontaneous diffusion of LED-emitted light even without provision of a separate diffusion plate or diffusion film, through the fabrication of a cover capable of isolating an LED light source from the outside, using a material member containing a diffusion material.

[15] It is yet another object of the present invention to provide an LED fluorescent lamp which is capable of achieving easy assembly by configuring it to have a structure such that an end of a heat sink cover and an end of a diffusion cover can be fitted to be connected to each other by force applied from the outside. [16]

Technical Solution

[17] In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of an LED fluorescent lamp comprising: [18] a circuit board on which light-emitting diodes (LED) are arranged and fixed at regular intervals; [19] an LED driving means attached to a lower part of the circuit board and adapted to turn on/off the LEDs in response to signals being input from the outside; [20] a diffusion cover provided on an upper part of the circuit board and diffusing the light emitted from the LEDs; [21] a semi-cylindrical heat sink cover combined to the diffusion cover to form a fluorescent-type tube and having a plurality of heat sink fins formed on the outer periphery thereof; [22] electrical connection means fitted to be connected to both ends of the combined diffusion cover and heat sink cover and outputting an LED-driving power supply to the

LED driving means; and [23] a finishing cap connected to an upper part of the electrical connection means and adapted to isolate the electrical connection means from the external environment, [24] wherein the finishing cap is provided with a pair of power supply pins in electrical connection with the electrical connection means. [25]

Advantageous Effects

[26] As illustrated hereinbefore, the present invention is capable of achieving effective removal of LED-generated heat, by configuring a portion of an outer case for isolation of the LED from the external environment into a heat sink member, upon fabrication of an LED fluorescent lamp.

[27] Further, the present invention is capable of achieving previous removal of an afterimage phenomenon of the LED due to spontaneous diffusion of LED-emitted light even without provision of a separate diffusion plate or diffusion film, through the fabrication of a cover capable of isolating an LED light source from the outside, using a material member containing a diffusion material.

[28] Further, the present invention is capable of achieving easy assembly of a device by configuring it to have a structure such that an end of a heat sink cover and an end of a diffusion cover can be fitted to be connected to each other by force applied from the outside.

[29]

Brief Description of Drawings [30] FIG. 1 is a perspective view of an LED fluorescent lamp in accordance with one embodiment of the present invention; [31] FIG. 2 is a cross-sectional view of an LED fluorescent lamp in accordance with one embodiment of the present invention; [32] FIG. 3 is a partial view of a circuit board in accordance with one embodiment of the present invention; and [33] FIGS. 4 and 5 are views illustrating the spacing between light-emitting diodes

(LEDs) which are applied to the present invention. [34]

Mode for the Invention [35] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. [36] FIG. 1 illustrates an LED fluorescent lamp to which the present invention is applied.

Referring to FIG. 1, an LED fluorescent lamp 100 is structurally configured such that a heat sink cover 20 is positioned above a diffusion cover 30, and the diffusion cover 30 is fitted to be connected to the heat-sink cover 20 by externally applied force. [37] Accordingly, the LED fluorescent lamp in accordance with the present invention has the same shape as a conventional fluorescent lamp, and can be installed in the same manner as the conventional fluorescent lamp, by connecting power supply pins 43 of the LED fluorescent lamp 100 to connection terminals for a fluorescent lamp that were previously installed.

[38] The LED fluorescent lamp will be described with reference to FIGS. 2 and 3.

[39] In one embodiment of the present invention, the LED fluorescent lamp includes:

[40] a circuit board 15 on which light-emitting diodes (LED) 10 are arranged and fixed at regular intervals; [41] an LED driving section 17 attached to an upper part of the circuit board 15 and adapted to turn on/off the LEDs 10 in response to signals being input from the outside; [42] a diffusion cover 30 provided on a lower part of the circuit board 15 and diffusing the light emitted from the LEDs 10; [43] a semi-cylindrical heat sink cover 20 connected to the diffusion cover 30 to form a fluorescent-type tube and having a plurality of heat sink fins formed on the outer periphery thereof; [44] electrical connection parts 50 fitted to be connected to both ends of the combined diffusion cover 30 and heat sink cover 20 and outputting an LED-driving power supply to the LED driving section 17; and [45] a finishing cap 40 connected to an upper part of the electrical connection part 50 and adapted to isolate the electrical connection part 50 from the external environment. [46]

[47] As shown in FIG. 5, the spacing between LEDs 10 arranged and fixed on the circuit board 15 is determined such that the light emitted from a given number of LEDs 10 overlaps one another by a light-emitting angle of the LEDs 10.

[48] As shown in FIG. 5, the distance between the circuit board 15 and the diffusion cover

30 is also determined such that the light emitted from the LEDs 10 inside the diffusion cover 30 overlaps one another. The diffusion cover 30 also has a semi-cylindrical shape similar to the heat sink cover 20, and therefore has a tube-like shape as in a conventional fluorescent lamp, when the heat sink cover 20 and the diffusion cover 30 are combined to each other as described above.

[49] The finishing cap 40 is provided with a pair of power supply pins 43 that are electrically connected to the electrical connection part 50.

[50] The heat sink cover 20 and the diffusion cover 30 are each provided with coupling members 25,35 that are interconnected with each other by external pressure.

[51] Particularly, the coupling members 25,35 of the heat sink cover 20 and the diffusion cover 30 have a concavo-convex shape, and therefore a protrusion 35 which is a coupling member formed on the diffusion cover 30 is fitted, connected and fixed into a groove 25 which is a coupling member formed on the heat sink cover 20, by externally applied force.

[52] A waterproof member 70 is further provided on one side of the coupling member of the heat sink cover 20 being in close contact with the diffusion cover 30, and the waterproof member 70 may include a waterproof tape, and the like.

[53] As shown in FIG. 3, a waterproof member 53 is provided on the outer periphery of the protrusion 51 coupled to the finishing cap 40, outside the electrical connection part 50, and the waterproof member 53 may include a waterproof tape, and the like.

[54] An inner end of the heat sink cover 20 is provided with a groove 28 through which the finishing cap 40 can be fitted and connected, and the electrical connection part 50 is provided with a protrusion 55 which is fitted into the groove 28. A waterproof member 57 is provided in the region being in close contact with the heat sink cover 20, on the outer periphery of the protrusion 55. The waterproof member 57 may include a waterproof tape, and the like.

[55] The electrical connection part 50 is provided with a groove 58 through which the diffusion cover 30 can be inserted and connected, and a waterproof member 59 is provided in the region being in close contact with the diffusion cover 30, on the inner surface of the groove 58. The waterproof member 59 may include a waterproof tape, and the like.

[56] An operation voltage of the LED fluorescent lamp using the LEDs 10 as a light source is in a range of 100 to 240V. [57] The operation of the LED fluorescent lamp constructed as above will be described hereinafter.

[58] As shown in FIG. 4, a plurality of LEDs 10 are spaced and arranged at a given interval on the circuit board 15. That is, a plurality of LEDs 10 are regularly spaced such that the light emitted from the LEDs 10 overlaps one another, as shown in FIG. 5.

[59] The circuit board 15 is connected to the heat sink cover 20 while being spaced from the diffusion cover 30, such that overlap points of the light emitted from the LEDs 10 are positioned inside the diffusion cover 30.

[60] The distance (d) between the circuit board 15 and the diffusion cover 30 may be maintained at a given value by controlling a thickness of the circuit board 15.

[61] As described above, the LEDs 10 are provided spaced at a specified distance apart from the diffusion cover 30 such that the overlap points of the light emitted from a plurality of the LEDs 10 are positioned at the shortest distance from the inside wall of the diffusion cover 30.

[62] By such determination of the distance (d) between the LEDs 10 and the diffusion cover 30, a shape or afterimage of the LEDs 10 does not appear on the outer surface of the diffusion cover 30 when the LEDs 10 are turned-on.

[63] Further, multiple heat sink fins 21 are arranged at regular intervals on an outer periphery of the heat sink cover 20, so such a structure results in external dissipation of heat generated by the LEDs 10 when the LEDs 10 are turned-on, whereby elevation of an internal temperature of the LED fluorescent lamp is prevented. Both ends of the heat sink cover 20 are provided with grooves 25 which are coupling members, as shown in FIGS. 2 and 3.

[64] The coupling member protrusions 35 provided on the diffusion cover 30 are fitted into the coupling member grooves 25 by the externally applied force, whereby the heat sink cover 20 and the diffusion cover 30 are combined to form a tube-shaped fluorescent lamp structure. Here, since the diffusion cover 30 is formed with incorporation of a diffusion material, diffusion and emission of LED-emitted light which is as natural as in a conventional fluorescent lamp is achieved, even without installation of an additional diffusion member such as diffusion plate or diffusion film.

[65] Before fitting of the protrusions 35 of the diffusion cover 30 into the grooves 25 of the heat sink cover 20, the waterproof tape 70 is attached to the interface where the heat sink cover 20 and the diffusion cover 30 are in intimate contact, such that internal penetration of moisture including aqueous vapors is prevented.

[66] Under the above combined state, electrical connection parts 50 are first inserted into both ends of a tube-shaped structure formed by combination of the heat sink cover 20 and the diffusion cover 30, and finishing caps 40 are then covered on upper parts of the electrical connection parts 50 such that the electrical connection parts 50 are isolated from the external environment. The finishing cap 40 is provided with power supply pins 43 that are electrically connected to the electrical connection part 50, and receive a supply of a commercial power supply and output an LED-driving power supply to the LED driving section 17 through the electrical connection part 50 (see FIGS. 1 and

2).

[67] Since the waterproof tape 57 is attached to an outer periphery of the protrusion 55 of the electrical connection part 50 being in close contact with the heat sink cover 20 and the waterproof tape 59 is attached to an inner periphery of the groove 58 of the electrical connection part 50 in close contact with the diffusion cover 30, the electrical connection part 50 is more intimately connected to the heat sink cover 20 and the diffusion cover 30, simultaneously resulting in no penetration of airborne moisture into connection apertures of individual components.

[68] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

[69]

Claims

Claims
[1] An LED fluorescent lamp comprising: a circuit board on which light-emitting diodes (LED) are arranged and fixed at regular intervals; an LED driving means attached to a lower part of the circuit board and adapted to turn on/off the LEDs in response to signals being input from the outside; a diffusion cover provided on an upper part of the circuit board and diffusing the light emitted from the LEDs; a semi-cylindrical heat sink cover combined to the diffusion cover to form a fluorescent-type tube and having a plurality of heat sink fins formed on the outer periphery thereof; electrical connection means fitted to be connected to both ends of the combined diffusion cover and heat sink cover and outputting an LED-driving power supply to the LED driving means; and a finishing cap connected to an upper part of the electrical connection means and adapted to isolate the electrical connection means from the external environment, wherein the finishing cap is provided with a pair of power supply pins in electrical connection with the electrical connection means.
[2] The lamp according to claim 1, wherein the heat sink cover and the diffusion cover are each provided with coupling members that are interconnected to each other by external pressure.
[3] The lamp according to claim 2, wherein the coupling members formed respectively on the heat sink cover and the diffusion cover have a concavo-convex shape, and a protrusion of the coupling member formed on the diffusion cover is fitted into a groove of the coupling member formed on the heat sink cover by the external pressure, such that the heat sink cover and the diffusion cover are connected and fixed.
[4] The lamp according to claim 2, wherein a waterproof member is further provided on one side of the coupling member of the heat sink cover being in close contact with the diffusion cover.
[5] The lamp according to claim 4, wherein the waterproof member is a waterproof tape.
[6] The lamp according to claim 1, wherein the electrical connection means is provided with a screw-threaded coupling member, and the finishing cap is provided with a hole corresponding to the coupling member, such that a fixing member is screw-connected to the coupling member.
[7] The lamp according to claim 4, wherein a waterproof member is provided on an end connected to the finishing cap, outside the electrical connection means.
[8] The lamp according to claim 4, wherein an inner end of the heat sink cover is provided with a groove through which the electrical connection means can be fitted to be connected, and the electrical connection means is provided with a protrusion which is fitted into the groove.
[9] The lamp according to claim 8, wherein a waterproof member is provided on an outer surface of the protrusion formed on the electrical connection means.
[10] The lamp according to claim 1, wherein the electrical connection means is provided with a groove through which the diffusion cover can be inserted and connected, and a waterproof member is provided on the inner surface of the groove.
[11] The lamp according to claim 1, wherein the spacing between LEDs arranged and fixed on the circuit board is determined such that the light emitted from a given number of LEDs overlaps one another by a light-emitting angle of the LEDs.
[12] The lamp according to claim 1, wherein the diffusion cover is positioned such that the light emitted from the LEDs inside the diffusion cover overlaps one another.
[13] The lamp according to claim 12, wherein the diffusion cover has a semi- cylindrical shape.
[14] The lamp according to claim 1, wherein a fluorescent- type lamp using the LED as a light source has an operation voltage of 100 to 240V.
PCT/KR2008/004277 2008-06-16 2008-07-22 Led fluorescent lamp WO2009154321A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR20080056451 2008-06-16
KR10-2008-0056451 2008-06-16
KR1020080065398A KR100907310B1 (en) 2008-06-16 2008-07-07 Led electric lamp type fluorescent lamp
KR10-2008-0065398 2008-07-07

Publications (1)

Publication Number Publication Date
WO2009154321A1 true WO2009154321A1 (en) 2009-12-23

Family

ID=41337513

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/004277 WO2009154321A1 (en) 2008-06-16 2008-07-22 Led fluorescent lamp

Country Status (3)

Country Link
JP (1) JP2009302028A (en)
KR (1) KR100907310B1 (en)
WO (1) WO2009154321A1 (en)

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WO2012142710A1 (en) * 2011-04-19 2012-10-26 Xinxin Shan Led lighting system
US8360607B2 (en) 2010-02-17 2013-01-29 Next Lighting Corp. Lighting unit with heat-dissipating chimney
WO2013147504A1 (en) * 2012-03-30 2013-10-03 Samsung Electronics Co., Ltd. Lighting device and method for manufacturing the same
US9179513B2 (en) 2006-02-09 2015-11-03 Xinxin Shan LED lighting system
US9239157B2 (en) 2010-08-26 2016-01-19 Rasit Özgüc Light-emitting means, in particular for operation in lampholders for fluorescent lamps
JP2016143467A (en) * 2015-01-30 2016-08-08 三菱電機株式会社 Light unit, luminaire and inspection method
US9516706B2 (en) 2006-02-09 2016-12-06 Led Smart Inc. LED lighting system
EP3196549A1 (en) * 2016-01-21 2017-07-26 Zumtobel Lighting GmbH Arrangement for forming an elongated storage space for lighting units
US10285225B2 (en) 2006-02-09 2019-05-07 Led Smart Inc. LED lighting system

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JP5524656B2 (en) * 2009-07-13 2014-06-18 ローム株式会社 LED lighting device
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KR101045509B1 (en) * 2009-09-02 2011-06-30 주식회사 남영전구 A LED Lamp Which is Directly Replaceable with Conventional Fluorescent Lamp
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KR101048753B1 (en) 2009-12-22 2011-07-14 (주)엔엠엘이디 Fluorescent type LED lighting lamp
WO2011085539A1 (en) * 2010-01-12 2011-07-21 深圳市普耐光电科技有限公司 Led lamp
CN101846248B (en) * 2010-02-10 2012-05-23 上海嘉塘电子有限公司 360-dgree luminous LED self-heat-radiation fluorescent lamp type lamp fitting
KR101103815B1 (en) 2010-03-09 2012-01-06 주식회사 아모럭스 LED Panel and LED Lighting Apparatus of Bar Type Using the Same
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CN101949499B (en) * 2010-09-10 2012-11-21 深圳市讯宇创科技有限公司 LED (Light-Emitting Diode) fluorescent lamp
CN102720984B (en) * 2011-03-29 2016-03-30 海洋王照明科技股份有限公司 Tunnel lamp
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KR101131830B1 (en) 2011-10-26 2012-03-30 에스지디지털주식회사 A device for fixing the board of led light
KR101371117B1 (en) * 2011-11-08 2014-03-10 장봉익 Led lighting apparatus
KR101202400B1 (en) * 2011-12-22 2012-11-16 주식회사 썬엘이디 Led fluorescent lamp
JP5296236B2 (en) * 2012-02-27 2013-09-25 エヌズエンタープライズ株式会社 LED fluorescent lighting device
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JP6055053B1 (en) * 2015-09-08 2016-12-27 哲 鶴崎 Backlight illumination device for shaped body

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1064318A (en) * 1996-08-22 1998-03-06 ▲高▼村電機工業株式会社 Surface lighting system
JP2000207921A (en) * 1999-01-19 2000-07-28 Hitachi Lighting Ltd Reflector-mounted device for fluorescent light apparatus
US6511204B2 (en) * 1999-12-16 2003-01-28 3M Innovative Properties Company Light tube
JP2007280739A (en) * 2006-04-06 2007-10-25 Royal Lighting Co Ltd Led line lamp for illumination

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03121894A (en) * 1988-12-06 1991-05-23 Konica Corp Thermal recording material
JPH0397580A (en) * 1989-09-11 1991-04-23 Fujitsu Ltd Power source disconnection of apparatus
JP3749828B2 (en) * 2000-10-31 2006-03-01 ルナライト株式会社 LED lighting
KR20080040086A (en) * 2006-11-02 2008-05-08 주식회사 다원전기에너지사업부 Illuminator using high output led with high brightness
JP4653777B2 (en) * 2007-04-13 2011-03-16 森山産業株式会社 Waterproof structure at the end of tubular light emitter
KR20080047521A (en) * 2008-05-08 2008-05-29 정구진 Light-emitting diode lighting apparatus of a fluorescent lamp type

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1064318A (en) * 1996-08-22 1998-03-06 ▲高▼村電機工業株式会社 Surface lighting system
JP2000207921A (en) * 1999-01-19 2000-07-28 Hitachi Lighting Ltd Reflector-mounted device for fluorescent light apparatus
US6511204B2 (en) * 1999-12-16 2003-01-28 3M Innovative Properties Company Light tube
JP2007280739A (en) * 2006-04-06 2007-10-25 Royal Lighting Co Ltd Led line lamp for illumination

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10285225B2 (en) 2006-02-09 2019-05-07 Led Smart Inc. LED lighting system
US10057955B2 (en) 2006-02-09 2018-08-21 Led Smart Inc. LED lighting system
US9516706B2 (en) 2006-02-09 2016-12-06 Led Smart Inc. LED lighting system
US9179513B2 (en) 2006-02-09 2015-11-03 Xinxin Shan LED lighting system
WO2011098411A3 (en) * 2010-02-09 2011-10-20 Dewinci Gmbh Led flashlight
US8684566B2 (en) 2010-02-17 2014-04-01 Next Lighting, Corp. Lighting unit with indirect light source
US8491165B2 (en) 2010-02-17 2013-07-23 Next Lighting Corp. Lighting unit having lighting strips with light emitting elements and a remote luminescent material
US8360607B2 (en) 2010-02-17 2013-01-29 Next Lighting Corp. Lighting unit with heat-dissipating chimney
US9239157B2 (en) 2010-08-26 2016-01-19 Rasit Özgüc Light-emitting means, in particular for operation in lampholders for fluorescent lamps
DE102011003421A1 (en) * 2011-02-01 2012-08-02 Osram Ag Led lamp
DE102011003421B4 (en) * 2011-02-01 2014-10-30 Osram Gmbh led lamp
WO2012104249A1 (en) * 2011-02-01 2012-08-09 Osram Ag Led lamp
WO2012142710A1 (en) * 2011-04-19 2012-10-26 Xinxin Shan Led lighting system
CN103503577A (en) * 2011-04-19 2014-01-08 善新新 LED lighting system
US10215365B2 (en) 2012-03-30 2019-02-26 Samsung Electronics Co., Ltd. Lighting device and method for manufacturing the same
WO2013147504A1 (en) * 2012-03-30 2013-10-03 Samsung Electronics Co., Ltd. Lighting device and method for manufacturing the same
JP2016143467A (en) * 2015-01-30 2016-08-08 三菱電機株式会社 Light unit, luminaire and inspection method
EP3196549A1 (en) * 2016-01-21 2017-07-26 Zumtobel Lighting GmbH Arrangement for forming an elongated storage space for lighting units

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