WO2012128547A2 - Lampe à del - Google Patents

Lampe à del Download PDF

Info

Publication number
WO2012128547A2
WO2012128547A2 PCT/KR2012/002009 KR2012002009W WO2012128547A2 WO 2012128547 A2 WO2012128547 A2 WO 2012128547A2 KR 2012002009 W KR2012002009 W KR 2012002009W WO 2012128547 A2 WO2012128547 A2 WO 2012128547A2
Authority
WO
WIPO (PCT)
Prior art keywords
light
led
led lamp
guide plate
optical sheet
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.)
Ceased
Application number
PCT/KR2012/002009
Other languages
English (en)
Korean (ko)
Other versions
WO2012128547A3 (fr
Inventor
강신철
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.)
Techsign Light Panel Co Ltd
Original Assignee
Techsign Light Panel 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
Application filed by Techsign Light Panel Co Ltd filed Critical Techsign Light Panel Co Ltd
Publication of WO2012128547A2 publication Critical patent/WO2012128547A2/fr
Publication of WO2012128547A3 publication Critical patent/WO2012128547A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • F21K9/272—Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • 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
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • 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
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • F21K9/66—Details of globes or covers forming part of the light source
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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]

Definitions

  • the present invention relates to an LED lamp, and more particularly, to an LED lamp to secure a 360-degree irradiation angle by mounting a light guide plate pattern processed light guide plate on a prism sheet to a cylindrical diffuser.
  • Tube-type fluorescent lamp replacement LED lamps directly under the LED require the design of a PCB to place a large number of LEDs directly on the back and use a thick diffuser to eliminate spots.
  • the irradiation angle stays at a level of 120 degrees, and thus there is a problem in that the light efficiency is lowered as a whole because there is no use of a reflector compared to a fluorescent lamp having a 360 degree irradiation angle.
  • the LED module provided on both sides of the diffuser is irradiated with the light toward the center, but the light is not transmitted completely to the center causes a problem that the light intensity of both sides and the center is different.
  • An object of the present invention is to provide an LED lamp having a 360 degree irradiation angle.
  • Another object of the present invention is to provide a LED lamp to maximize the light transmission by seating the light guide plate pattern processing on the prism sheet to the light-emitting type optical sheet to ensure the light straightness and light transmission to the diffuser.
  • Still another object of the present invention is to provide an LED lamp that can increase light efficiency by using a reflector for light irradiated with 360 degrees.
  • a cylindrical diffuser for diffusing light
  • a light emitting optical sheet seated 360 degrees inside the cylindrical diffuser and having a dot pattern processed on the backside of the light guide plate
  • at least one LED module for receiving light from the outside through a connection terminal to irradiate light into the cylindrical diffuser.
  • the LED module is installed in close contact with the rear of the PCB, characterized in that it further comprises a heat dissipation cover for heat dissipation generated from the LED module.
  • the present invention it characterized in that it further comprises a reflector for intensively irradiating the light in the direction to reflect by reflecting the light irradiated in the fixed surface direction.
  • the reflection shade is characterized in that configured to perform a heat radiation function is connected to the heat dissipation cover.
  • the light emitting optical sheet may include: a light guide plate layer for distributing the light emitted from the LED module to the entire area through the light guide plate and transforming the light into a surface light source of uniform brightness using a cylindrical diffuser; And a light scattering layer having a light scattering dot pattern formed on the rear surface of the light guide plate so that the luminance distribution is uniform in the entire area of the cylindrical light diffuser, wherein the front surface of the light guide plate layer is formed with a curved layer for converting photometry into front light.
  • the dot pattern diameter is sequentially patterned in the opposite direction from the starting position to which the light is irradiated in a broad direction.
  • the light emitting optical sheet is characterized in that the dot pattern diameter is sequentially patterned from both sides to the center from the light is irradiated when the LED module is installed on both sides.
  • the light guide plate pattern processing on the prism sheet has the effect of maximizing light transmission by seating a 360-degree light-emitting optical sheet that ensures the light straightness and light transmission property to the diffuser.
  • the irradiation angle of light is 360 degrees, it is possible to maximize the light efficiency by using an existing reflector or a high-efficiency reflector as well as to broaden the use by changing the reflector according to the use.
  • 1 is a view showing a conventional LED lamp.
  • FIG. 2 is a perspective view of an LED lamp according to an embodiment of the present invention.
  • FIG 3 is an exploded perspective view of an LED lamp according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a light emitting optical sheet according to an embodiment of the present invention.
  • FIG. 5 is a view showing a dot pattern of the light emitting optical sheet for unidirectional light scattering according to an embodiment of the present invention.
  • FIG. 6 is a view showing a dot pattern of the light emitting optical sheet for bidirectional light scattering according to an embodiment of the present invention.
  • Figure 7 is a perspective view showing an example of the LED lamp provided with only one side of the LED module according to an embodiment of the present invention.
  • FIG 8 is a view showing an example configured a reflection shade of the LED lamp according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of an LED lamp according to an embodiment of the present invention
  • Figure 3 is an exploded perspective view of the LED lamp according to an embodiment of the present invention.
  • an LED lamp according to an exemplary embodiment of the present invention includes a cylindrical diffuser 10 for diffusing light and one end or the other based on the cylindrical diffuser 10. It is provided at both ends, at least one LED module 30 for irradiating light into the cylindrical diffuser 10 by receiving power from the outside through the connection terminal 50, and the cylindrical diffuser 10 It is configured to include a light emitting optical sheet 40 seated 360 degrees to effectively transmit light therein.
  • the LED module 30 may use one power LED device having a high wattage or several LED devices having a low wattage.
  • the LED element of the LED module 30 is configured to have a high wattage
  • the LED element is configured as an LED package including a heat dissipation PC and a power supply module in which the LED element is mounted, and the LED element is configured to have a low wattage.
  • the PCB on which one or more LED elements are mounted so as to face the light emitting optical sheet 40.
  • the LED module 30 is preferably configured to irradiate light at an angle at which light transmission can be maximized to the light emitting optical sheet 40. Light is irradiated toward the light emitting optical sheet 40. It is possible to manufacture and attach a PCB mounted with an LED element.
  • the rear side of the LED module 30 is further provided with a heat dissipation cover 20, the LED element is configured to heat dissipation by being in close contact with the mounted PCB, and a cylindrical diffuser 10 for protecting the LED module 30 ) Perform the function of the cover.
  • the heat dissipation cover 20 is formed with a hole so that the connection terminal 50 for applying power to the LED module 30 can protrude to the outside.
  • the cylindrical diffuser 10 is preferably a diffusion rate of 15% to 20%.
  • FIG. 4 is a cross-sectional view of a light emitting optical sheet according to an embodiment of the present invention.
  • the light emitting optical sheet 40 includes a light guide plate layer 41 and a light scattering layer 42, and the front surface of the light guide plate layer 41 has a curved layer 44 for converting photometry to front light. ) Is formed.
  • the light guide plate layer 41 of the light emitting optical sheet 40 is a prism sheet for improving luminance.
  • the prism sheet is used as the light guide plate layer 41 in the embodiment of the present invention, the following description will describe the "light guide plate layer 41" as the "prism sheet 41".
  • the prism sheet 41 obtains light from the light irradiated from the LED module 30, distributes the light to the entire area through the light guide plate, and deforms the surface light source of more uniform brightness using the cylindrical diffuser 10. To perform the function.
  • the curved layer 42 of the prism sheet 41 converts side light into front light and condenses the emitted light to increase luminance.
  • the light efficiency becomes weaker as the light transmission distance increases and a difference in luminance uniformity occurs.
  • the light scattering layer 42 forming a light scattering ink pattern on the light guide plate layer 41, that is, on the back of the prism sheet 41 is used. Further formed.
  • FIG. 5 is a view showing a dot pattern of the light emitting optical sheet for unidirectional light scattering according to an embodiment of the present invention
  • Figure 6 is a dot pattern of a light emitting optical sheet for bidirectional light scattering according to an embodiment of the present invention The figure shown.
  • the light scattering layer 42 of the light emitting optical sheet 40 has a dot pattern diameter sequentially opposite to each other. Designed to be large to the end and bonded in a cylinder, as shown in Figure 6, when the LED module 30 is installed on both sides and irradiated with light in the center, it is designed to increase the dot pattern diameter from both sides to the center sequentially Join the cylinder.
  • the light scattering dot pattern constituting the light scattering layer 42 is a light scattering pattern of a certain shape such as a circle, a square or a hexagon on the back of the prism sheet 41 is formed by forming a light scattering ink pattern by screen printing The method is applied.
  • the light scattering dot pattern forming method will be described in more detail.
  • the dot pattern is changed to design the luminance uniformity to be equal to or higher than a predetermined level. That is, the intensity of light incident on the prism sheet 41 decreases as the distance from the light source increases, and the luminance of light propagating along the light guide plate and scattered in the pattern is proportional to the area of the pattern. Therefore, since the luminance of the light actually scattered is proportional to the product of the area of the pattern and the light intensity incident on the light source, in order to make the luminance distribution uniform in all areas, the size is increased by a function as it moves away from the light source.
  • the spacing is designed so that the scattered light of each pattern is sufficiently overlapped to increase the uniformity.
  • the luminance uniformity it is preferable to design the luminance uniformity to a predetermined level or more in consideration of the minimum printable period, size, and shape, because the ink pattern is too small for the pattern that is too small.
  • the bent layer 44 is bonded to the cylinder with the inner side and the light scattering layer 42 toward the outside.
  • FIG. 7 is a perspective view showing an example of an LED lamp having an LED module according to an embodiment of the present invention only on one side.
  • the LED module 30 when the LED module 30 is provided on only one side, the LED module 30 may be seated on the light emitting optical sheet 40 having the one-way dot pattern illustrated in FIG. 5, and the LED module 30 may not be provided.
  • the general cover 22 instead of the heat dissipation cover 20 on the other side, it is possible to lower the production cost of the LED lamp produced for the purpose of a small amount of light.
  • FIG 8 is a view showing an example in which the reflection shade of the LED lamp according to an embodiment of the present invention is configured.
  • the LED lamp of the present invention since the LED lamp of the present invention has a 360-degree irradiation angle, the light irradiated to a fixed surface is reflected by the reflector 60 so as to concentrate irradiation in a direction for irradiating the actual light. Can increase.
  • the shape of the reflection shade 60 is not limited to the shape shown, but may vary in shape depending on the intended use.
  • the reflector 60 may be configured to be connected to the heat dissipation cover 20 to perform a predetermined heat dissipation function together with the heat dissipation cover 20.
  • the LED lamp of the present invention can be used in the conventional ordinary fluorescent lamp socket 52 by being configured in the AC type.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

La présente invention concerne une lampe à DEL dans laquelle une feuille optique électroluminescente formée en traitant un motif de plaque guide de lumière sur une feuille à prisme est positionnée à l'intérieur d'un diffuseur cylindrique pour garantir un angle d'émission de 360 degrés. La lampe à DEL selon la présente invention comprend : un diffuseur cylindrique pour diffuser de la lumière ; une feuille optique électroluminescente, qui est positionnée à l'intérieur du diffuseur cylindrique pour garantir un angle d'émission de 360 degrés, et qui est traitée en un motif de points sur la surface arrière de la plaque guide de lumière ; et un ou plusieurs modules DEL qui reçoivent de l'énergie à partir d'une source externe par l'intermédiaire de bornes de connexion afin d'émettre de la lumière dans le diffuseur cylindrique.
PCT/KR2012/002009 2011-03-22 2012-03-21 Lampe à del Ceased WO2012128547A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110025270A KR20120107642A (ko) 2011-03-22 2011-03-22 Ｌｅｄ 램프
KR10-2011-0025270 2011-03-22

Publications (2)

Publication Number Publication Date
WO2012128547A2 true WO2012128547A2 (fr) 2012-09-27
WO2012128547A3 WO2012128547A3 (fr) 2013-03-07

Family

ID=46879897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/002009 Ceased WO2012128547A2 (fr) 2011-03-22 2012-03-21 Lampe à del

Country Status (2)

Country Link
KR (1) KR20120107642A (fr)
WO (1) WO2012128547A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2728252A1 (fr) * 2012-11-06 2014-05-07 Connect Electronics Limited Lampe à diode électroluminescente de rattrapage
IT201700029945A1 (it) * 2017-03-17 2018-09-17 Biosyntex S R L Tubo diffusore

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101446569B1 (ko) * 2013-02-25 2014-10-07 엘이디엔진주식회사 도광 파이프가 구비되는 직관형 ｌｅｄ램프
KR101459887B1 (ko) * 2013-03-25 2014-11-07 김미애 경광봉
KR101416895B1 (ko) * 2013-03-28 2014-07-09 주식회사 유트로닉스 Led 램프
KR102647999B1 (ko) 2023-08-28 2024-03-14 최승원 360도 배광을 갖는 엘이디 조명장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940003599Y1 (ko) * 1991-08-29 1994-06-02 송경식 방열판이 설치된 형광등
US6621973B1 (en) * 2000-03-16 2003-09-16 3M Innovative Properties Company Light guide with protective outer sleeve
KR200323074Y1 (ko) * 2003-05-12 2003-08-14 한경현 형광등용 히트싱크
KR20100073628A (ko) * 2008-12-23 2010-07-01 엘지전자 주식회사 광파이프 및 이를 구비한 조명장치

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2728252A1 (fr) * 2012-11-06 2014-05-07 Connect Electronics Limited Lampe à diode électroluminescente de rattrapage
IT201700029945A1 (it) * 2017-03-17 2018-09-17 Biosyntex S R L Tubo diffusore
WO2018167721A1 (fr) * 2017-03-17 2018-09-20 BIOSYNTEX S.r.l. Tube diffuseur

Also Published As

Publication number Publication date
WO2012128547A3 (fr) 2013-03-07
KR20120107642A (ko) 2012-10-04

Similar Documents

Publication Publication Date Title
US8931945B2 (en) Lighting apparatus
EP2447599B1 (fr) Appareil d'éclairage
KR101062837B1 (ko) 넓고 균일한 배광을 가지는 ｌｅｄ 조명
WO2012128547A2 (fr) Lampe à del
EP2418422A2 (fr) Lampe à led ayant une distribution lumineuse large et uniforme
US20110051457A1 (en) Ceiling mount led lamp
EP2726776A1 (fr) Dispositif d'éclairage
WO2010071295A2 (fr) Lampe de rue à del
WO2012111983A2 (fr) Dispositif d'éclairage à del qui permet d'ajuster l'angle d'éclairage
WO2015084029A1 (fr) Dispositif d'éclairage à del amovible
WO2013168838A1 (fr) Structure de plaque de guidage lumineux commandant une uniformité à partir d'une partie centrale vers un bord, et lampe d'éclairage l'utilisant
WO2013073744A1 (fr) Éclairage à led, et dispositif de source de lumière pour unité de rétro-éclairage
CN213207458U (zh) 一种发光均匀的氛围灯
WO2012169686A1 (fr) Dispositif d'éclairage à diodes électroluminescentes
CN206234626U (zh) 一种超薄面光源led表贴灯
EP3293449B1 (fr) Lampe à del montée en surface ultra-mince ayant une surface émettant de la lumière
KR100970856B1 (ko) 넓고 균일한 배광을 가지는 ｌｅｄ 램프
CN103090223A (zh) Led照明模块和包括led照明模块的照明装置
CN103104843A (zh) 照明装置
KR20200111616A (ko) 벽면 조사용 램프 및 이를 사용한 조명 기구
KR101051845B1 (ko) 빛 확산층이 형성되는 엘이디 모듈
WO2015012635A1 (fr) Appareil d'éclairage à diode électroluminescente
WO2019078568A1 (fr) Éclairage comportant un couvercle combiné avec une lentille
TWI532949B (zh) 板形燈具模組
KR20170120750A (ko) 엣지형 조명 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12760087

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12760087

Country of ref document: EP

Kind code of ref document: A2