AU2010269264A1 - Reflecting shade with anti-dust heat-dissipation structure and corner cube for LED lamp, and manufacturing method thereof - Google Patents

Reflecting shade with anti-dust heat-dissipation structure and corner cube for LED lamp, and manufacturing method thereof Download PDF

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Publication number
AU2010269264A1
AU2010269264A1 AU2010269264A AU2010269264A AU2010269264A1 AU 2010269264 A1 AU2010269264 A1 AU 2010269264A1 AU 2010269264 A AU2010269264 A AU 2010269264A AU 2010269264 A AU2010269264 A AU 2010269264A AU 2010269264 A1 AU2010269264 A1 AU 2010269264A1
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AU
Australia
Prior art keywords
reflecting shade
led lamp
reflection
heat dissipation
light
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.)
Abandoned
Application number
AU2010269264A
Inventor
Jongsung Kim
Moosung Kwon
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Individual
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Individual
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Filing date
Publication date
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Publication of AU2010269264A1 publication Critical patent/AU2010269264A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-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
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-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
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The present invention relates to a reflecting shade for a line-shaped LED lamp, a line-shaped lamp using the same and a manufacturing method thereof. The present invention comprises a dome portion for covering a heat-dissipation plate to prevent a decrease in the efficiency of heat dissipation due to dust accumulated as in the case of a pin-type heat-dissipation plate in the art, and a line-shaped LED lamp reflecting shade for improving a heat transfer rate by applying a thermal conductive agent to an interface between an LED and a reflection part. A plurality of reflection parts that are divided by partition walls are also provided to improve reflection performance of the reflecting shade and uniform light illumination, and self-reflection corners are formed densely at the reflection parts. In addition to the above configuration, a reflective coating is formed on the reflection parts, and a light diffusing layer or a light agent is added to the cover, for an additional improvement in the reflection performance of the reflecting shade and the uniform illumination of the light.

Description

DESCRIPTIONN] [Invention Title] REFLECTINGJ SHADE WITH ANTI-DUST HEAT DISSIPATION STRUCTURE AND CORNER CUBE FOR LED LAMP, AND 5 MANUFACTURING METHOD i'UEREOF [Technical Field] The present invention disclosed herein relates to a lamp using a light-emitting diode (LED), particularly, to a reflecting shade for a line-type LED lamp that may be used by being easily installed in a typical fluorescent lamp socket, and more 10 particularly, to a reflecting shade for a L1ED lamp having an anti-dust heat dissipation structure that prevents a decrease in heat dissipation performance due to the accumulation of dust on a heat sink, heat dissipation pins and a thermal conductive agent for improving heat dissipation efficiency, and a diffuse reflection structure that prevents a stain phenomenon generated due to a limited radiation angle of a LED, 15 [Background Art] Various atenpts to use lamps using LEDs instead of using typical incandescent and fluorescent lamps have actively been made in recent years, LED lighting has advantages in that power consumption thereof is smaller than that of a typical lighting apparatus, lifetime thereof is long, various colors may be generated, 20 and eye strain may be less due to the absence of a flickering phenomenon as in a fluorescent lamp. Also, LED lamps, which may be directly installed and used in a typical incandescent or fluorescent lump socket because standards thereof are the same as that of an incandescent or fluorescent lamp, have been used in order to reduce costs 25 additionally generated from the installation of a LED lamp. 1 With respect to the LED lamp, it is important to dissipate heat generated from a LED, and when the heat generated fom the LED is not dissipated well, the LED and a driving circuit may be damaged or a polymer material cover may degrade. When a line-type LED lamp that may be inserted into a typical fluorescent 5 lamp socket is examined., the line-type LED lamp has a configuration, in which a rectangular printed circuit board (PCB) substrate 102 having a plurality of LEDs in a longitudinal direction is installed on a reflecting shade 103 including a reflecting plate 106 and a heat dissipation portion 104, and a plastic material cover 107 is joined to a joining portion 105 formed on the reflecting shade 103 as shown in FIGS, 10 1, 2, and 3. With respect to a typical reflecting shade for a LED lamp shown in FIG. 2, heat dissipation efficiency thereof is relatively good because the reflecting shade has a pin-type heat dissipation portion such that a contact area with air increases. However, since dust may be easily accumulated in grooves between the pins over 15 prolonged use and the accumulated dust between the heat dissipation pins are not easily removed, heat dissipation efficiency rapidly decreases. Thus, this may be a cause of failures of LED and driving circuit. With respect to a typical reflecting shade for a LED lamp shown in FIG. 3, since the reflecting shade has a heat dissipation portion having a half-circle shape, 20 the accumulation of dust in grooves between heat dissipation pins is prevented. However, heat dissipation efficiency itself may be low in comparison to the case ol using the heat dissipation pins. Also, since a radiation angle (a) of a LED is only about 100' due to the characteristics thereof and LEDs are intermittently disposed in a longitudinal 25 direction, a stain phenomenon appears, in which near a direction perpendicular to the 2 LED becomes relatively bright, and this may be disadvantageous in comparison to a fluorescent lamp in which light radiates in every direction. [Disclosure] [Technical Problem] 5 The present invention provides a reflecting shade for a LED lamp including a heat dissipation portion preventing the accumulation of dust on the heat dissipation portion as well as having high heat dissipation efficiency and a reflecting plate having a plurality of rectangular PC.Bs with LEDs installed and self-reflection corners having a cube corner shape, a LED lamp, and a manufacturing method 10 thereof [Technical Solution] 1. Structure of an Anti-Dust Heat Dissipation Portion A dome portion enclosing a heat dissipation portion is formed in order to prevent a decrease in heat dissipation efficiency due to the accumulation of dust on a 15 typical pin-type heat sink in a line-type LED lamp. A thickness of the dome portion is formed as thin as possible Ibr heat dissipation. 2. Means for Increasing :Heat Dissipation Efficiency A pin-type heat dissipation portion having high heat dissipation efficiency is formed on a rear side of a reflecting shade and an interface between a reflective 20 surface of the reflecting shade and a LED module (or a printed circuit board with LEDs installed) is coated with a thermal conductive agent to compensate effects of an air layer formed on the interface. 3, Uniformization of Light Illumination LEDs are installed on a plurality of reflective portions divided by partition 25 walls and/or on the partition walls, and self-reflection corners having a corner cube 3 shape are densely formed on the reflective portion. A reflective coating is formed on the reflective portion and a light diffusion layer or a light-diffusing agent may be added in a cover. 4. Method of Manufacturing a Reflecting Shade 5 Aluminum having high thermal conductivity is drawn and the reflecting shade is then formed by cutting. [Advantageous Effects] A reflecting shade for a LED lamp according to the present invention has the following significantly improved effects in comparison to the related art. 10 1. A reflecting shade Jor a LED lamp according to the present invention may be used for lightning a large area, because a plurality of reflective portions are formed by being divided by partition walls and a plurality of LEDs are provided on a printed circuit board in a longitudinal direction or are provided as a module to be installed in each reflective portion such that a light radiation angle increases in 15 comparison to a typical LE) lamp having a printed circuit board with one LED installed. 2. Since self-reflection corners having a corner cube shape are densely formed on the reflective portions and/or the partition walls of the reflecting shade for a LED lamp according to the present invention to induce diffuse reflection of light, a 20 stain phenomenon is significantly reduced in comparison to a typical LED lamp, and thus, more uniform lightning may be possible. 3. A light diffusion film is attached to a cover for a LED lamp according to the present invention or a light-diffusing agent is included in the cover such that more uniform lightning may be possible. 4 4. Since a beat dissipation portion of the reflecting shade for a LED lamp according to the present invention is composed of heat dissipation pins and a dome enclosing the heat dissipation pins, heat dissipation performance is excellent and the heat dissipation performance is not degraded by the accumulation of dust even after 5 prolonged use. 5. In the LED lamp according to the present invention, since an interface between the reflective portion of the reflecting shade and the printed circuit board or the refective portion and the LED module is coated with a thermal conductive agent selected from a thermal grease or a heat dissipation gel, heat generated from the 10 LEDs is rapidly transferred to the heat dissipation portion through the reflective portion, and thus, heat dissipation efficiency may be improved. 6. Since the manufacturing of the reflecting shade for a LED lamp according to the present invention is performed by cutting a reflecting shade formed in one piece by drawing aluminum having high thermal conductivity in a longitudinal 15 direction, manufacturing costs may be low in comparison to those of the related art in which a reflective portion and a heat dissipation portion are separately manufactured and assembled. (Description of Drawings] The accompanying drawings are included to provide a further understanding 20 of the present invention, and are incorpomted in and constitute a part of this specibcation. The drawings illustrate exemplary embodiments of the present invention and, together with the description, serve to explain principles of the present invention. In the drawings: FIG. I is a perspective view illustrating a typical line-type light-emitting 25 diode (LED) lamp; 5 FIG. 2 is a sectional view illustrating a typical line-type LED lamp; FIG. 3 is another sectional view illustrating a typical line-type LED lamp; FIG. 4 is a perspective view illustrating a line-type LED lamp according to the present invention; 5 FIG. 5 is a sectional view illustrating the linc-type LU D lamp according to tile present invention; FIG. 6 is a sectional view illustrating a reflecting shade of the line-type LED lamp according to the present invention; FIG. 7 is self-reflection corners of the reflecting shade of the line-type LED 10 lamp according to the present invention; FIG. 8 is a schematic view illustrating reflection by means of the self reflection corners of the reflecting shade of the line-type LED lamp according to the present invention; FIO. 9 is a cover of the line-type LED lamp according to the present 15 invention; and FIG. 10 is an electrical connection part of the line-type LED lamp according to the present invention. (Best Model Preferred embodiments of the present invention will be described below in 20 more detail with reference to the accompanying drawings. The scope of the present invention is limited to the embodiments set forth herein. Rather, various changes in form and details may be made therein by those skilled in the art without departing from the spirit and scope of the present invention. L Reflecting Shade for a Line-Tge LED LumU and Line-Tyne LED 25 Lomn Including the same
B
FIG., 4 is a perspective view :illustrating a ilne-type LED lamp having a reflecting shade for a line-type LED lamp according to an embodiment of the present invention and FIG. 5 is a sectional view illustrating the line-type LED lamp disclosed in FIG. 4. 5 Referring to FIOS. 4 and 5, a line-type LED lamp 200 according to the present invention is composed of a reflecting shade 300 including a reflective portion 310, a heat dissipation portion 320, and a dome portion 330 covering the heat dissipation portion 320, an electrical connection part 400 in which a terminal 410 inserted into a socket to make an electrical contact is installed, a plurality of' LDs 10 500 installed on the reflective portion 310 of the reflecting shade 300, and a cover 600. When each portion is described in more detail, FIG. 6 is a sectional view illustrating the reflecting shade 300 according to the present invention with the LEDs 500 installed. 15 The reflecting shade 300 may be manufactured in one piece by drawing aluminum and is cut in a longitudinal direction to obtain a size appropriate for a predetermined standard. The reflecting shade 300 is composed of the reflective portion 310, the heat dissipation portion 320, the dome portion 330, and a joining portion 340. The reflective portion 310 is divided by a plurality of partition walls 20 312 and die LED 500 is installed in the each reflective portion 310 divided by the partition walls 312. Since the LED lamp has a radiation angle (a) of a LED of about 100' and the LEDs are intermittently disposed in a longitudinal direction, a phenomenon of concentrating light near a direction perpendicular to the LED occurs. However, the 25 reflective portion 310 of die present invention is divided by the partition walls 312 to 7 be installed in plural and the LED is installed in the each reflective portion 310. Therefore, a wide range of light irradiation may be possible, The heat dissipation portion 320 of the rflecting shade is formed in a pin shape in order to increase heat dissipation efficiency and a pin shape having a 5 rectangular cross section is disclosed in FIG. 5. However, the pin shape may be freely selected as needed. The pin-type heat dissipation portion 320 has excellent heat dissipation efficiency, but heat dissipation efficiency may decrease when dust accumulates over prolonged use. The dome portion 330 is formed in a half-circle shape covering the 10 heat dissipation portion 320 and prevents the accumulation of dust on the heat dissipation portion 320. A thickness of the dome portion 330 may be as small as possible in order to increase heat dissipation efficiency. The LED 500 may be directly installed as a module form on the reflective 15 portion 310 or may be joined to the reflective portion by being installed in plural on a rectangular printed circuit board 510 in a longitudinal direction. Interfaces between the reflective portion 310 and the L)ED module or the printed circuit board with the LEDs installed are difficult to be in complete contact with each other due to manufacturing tolerances and the efficiency of heat transfer toward the heat 20 dissipation portion may decrease due to an air layer thus generated. In order to decrease effects of the air layer generated between the interfaces of the reflective portion 310 and the LED module or the printed circuit board with the LEDs installed, a thermal conductive agent 311 may be used. A thermal grease or a heat dissipation gel is used as the thermal conductive agent and heat transfer 8 efficiency is improved by forming an oil film layer filling the air layer between the interfaces. FIG, 7 illustrates a configuration, in which a self-relection corner 313 having a cube comer shape is formed on the reflective portion 310 and/or the partition wall 5 312. The scif-reflection corners 313 having a cube corner shape are formed by overall engraving of quadrangular pyramid shapes and may be manufactured by typical embossing or the like. As shown in FIG. 8, the self-reflection corner reflects incident light 314 on refcctive surfaces in the self-reflection corner, and since the self-reflection corners 10 are densely formed, light radiated from the LED is irregularly reflected and thus, more uniform lighting may be obtained. A reflective coating layer 315 may be further formed on the reflective portion 310 by plating, in order to improve reflection efficiency A cover 600 is disclosed in FIG. 9, and the cover 600 will be joined by 15 allowing a joining protrusion 610 formed at an end portion to be inserted into the joining portion 340 of the reflecting shade and is typically manufactured with a plastic material. A light diffusion layer 620 for light diffusion may be further formed on the cover or the cover may be manufactured so as to include a light dilTusing agent 630 in a plastic material of the cover. 20 An inorganic-based, a silicon-based, an acryl-based, or a styrene-based light diffusing agent may be generally used as the light-diffusing agent. Examples of the inorganic-based light-diffusing agent may be silica, titanium dioxide, calcium carbonate, barium sulfate, aluminum hydroxide, talc, mica, aluminum hydroxide, white carbon, magnesium oxide, or zinc oxide. Examples of the silicon-based light 25 diffusing agent may be polydialkylsiloxane such as polydimethylsiloxane and 9 polydiethylsiloxane, Examples of the acryl-based light-diffusing agent may be methyl methacrylate, ethyl methacrylate, butyl methacrylate, cyclohexane methacrylate, phenyl methacrylate, benzyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate, cyclohexane acrylate, phenyl acrylate, or benzyl acrylate. 5 Examples of the styrene-based light-diffusing agent may be styrene, a-methyl styrene, or halogenated styrne. An electrical connection part 400 is illustrated in FIG. 10. The electrical connection part 400 is connected to both end portions of the reflecting shade 300, and a contact terminal 410 inserted into an electrical socket to make an electrical 10 connection is fanned thereon and a driving circuit 420 for driving the LEDs may be installed therein. Also, an air outlet 440 for discharging internal heated air may be formed in a housing of the electrical connection part 400. 2.RefletInh Shde oraLIne-TypeAEDL mD and Method aof MafactudnttatLine-Type LED Lamip including the same 15 A reflecting shade for a line-type LED lamp according to the present invention and a line-type LED lamp including the same are manufactured by the following processes and some processes may be omitted if necessary. Step 1 Manufacturing a bar-shaped reflecting shade member by drawing aluminum and cutting the member in a longitudinal direction. 20 Step 2. Forming self-relection corners on a reflective portion of the cut reflecting shade by embossing. Step 3. Forming a reflective coating layer on the reflective portion by plating. Step 4. Joining a LED module or a printed circuit board with LEDs installed to the reflective portion. (A contact portion may be coated with a thermal conductive 25 agent.) 10 Step 5. Joining a cover to the reflecting shade and joining an electrical connection part by electrically connecting to the LEDs. Since a number of parts used in the present invention is smaller in comparison to that of the related art, manufacturing costs thereof may be reduced and 5 a structure thereof may be simple. The above-disclosed subject matter is to be considered illustrative, and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments, which fall within the true spirit and scope of the present invention. Thus, to the maximum extent allowed by law, the scope of 10 the present invention is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the Ibregoing detailed description. 15 11
AU2010269264A 2009-07-09 2010-07-09 Reflecting shade with anti-dust heat-dissipation structure and corner cube for LED lamp, and manufacturing method thereof Abandoned AU2010269264A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020090062454A KR100938932B1 (en) 2009-07-09 2009-07-09 A reflecting shade with anti-dust radiator and corner cube for led lamp and the manufacturing methods thereof
KR10-2009-0062454 2009-07-09
PCT/KR2010/004469 WO2011005046A2 (en) 2009-07-09 2010-07-09 Reflecting shade with anti-dust heat-dissipation structure and corner cube for led lamp, and manufacturing method thereof

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AU2010269264A1 true AU2010269264A1 (en) 2012-02-02

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AU (1) AU2010269264A1 (en)
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US8794793B2 (en) 2011-02-07 2014-08-05 Cree, Inc. Solid state lighting device with elongated heatsink
US9587790B2 (en) 2013-03-15 2017-03-07 Cree, Inc. Remote lumiphor solid state lighting devices with enhanced light extraction

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