EP2677231A1 - Dispositif de lampe à diode électroluminescente - Google Patents

Dispositif de lampe à diode électroluminescente Download PDF

Info

Publication number
EP2677231A1
EP2677231A1 EP13172678.8A EP13172678A EP2677231A1 EP 2677231 A1 EP2677231 A1 EP 2677231A1 EP 13172678 A EP13172678 A EP 13172678A EP 2677231 A1 EP2677231 A1 EP 2677231A1
Authority
EP
European Patent Office
Prior art keywords
shield
led
rough surface
light
lateral portion
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
EP13172678.8A
Other languages
German (de)
English (en)
Inventor
Zong-Huan CAI
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.)
Macroblock Inc
Original Assignee
Macroblock Inc
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 Macroblock Inc filed Critical Macroblock Inc
Publication of EP2677231A1 publication Critical patent/EP2677231A1/fr
Ceased legal-status Critical Current

Links

Images

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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
    • 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
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • 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 disclosure relates to a light emitting diode (LED) lamp device, in particularly to an LED lamp device adapted for fully illuminating.
  • LED light emitting diode
  • An LED is a semiconductor unit which is able to emit light. When current passes through the LED, electrons and holes are combined together in the LED to emit single-color light because of the Electroluminescence theory. Recently, with the rapid development of the LED technology, the LED has been widely used in general indoor lighting. For example, an LED module is disposed in a light bulb, and when the LED module is switched-on, the LED module emits light for indoor lighting. Compared to conventional incandescent bulbs, the LED light bulb has lower electricity consumption, a longer life span, smaller volume and a faster response. Therefore, the LED light bulb has replaced the conventional incandescent bulbs as the main stream of the future of illumination devices.
  • the LED light bulb having greater power comprises a heat-dissipation structure.
  • the heat-dissipation structure is in thermal contact with the LED so that the heat-dissipation structure may timely remove the heat generated by the LED.
  • the area of the illuminating source of the LED is smaller. That is, the light distribution of the LED is much more concentrated. Therefore, when the LED is used for lighting, in prior art, a lens or a diffusion shield is disposed on the LED module to diffuse the light such that the illuminating angle of the light is increased.
  • a lens or a diffusion shield is disposed on the LED module to diffuse the light such that the illuminating angle of the light is increased.
  • the light energy may be greatly lost because the light emitted by the LED needs to pass through multiple media (the multiple lenses or diffusion shields), thereby lowering the illuminating energy.
  • the volume of the diffusion shield is increased to make the shape of the diffusion shield into a three-quarters-of-a-sphere shape to a spherical shape.
  • the volume of the heat-dissipation structure needs to be decreased. Accordingly, when the volume of the heat-dissipation structure is reduced, the heat-dissipation efficiency of the LED light bulb is also reduced. Therefore, increasing the volume of the diffusion shield for enhancing the illuminating angle may lower the luminance (brightness) and reduce the life span of the LED light bulb.
  • the conventional LED light bulb has a problem that the balance between heat dissipation and a wide illuminating angle cannot be achieved. Therefore, there is a need for a LED light bulb having a wide illuminating angle without affecting its original heat-dissipation efficiency.
  • the disclosure provides a light emitting diode (LED) lamp device, in order to solve the problem that the balance of heat dissipation and full illumination cannot be achieved.
  • LED light emitting diode
  • One embodiment of the disclosure provides an LED lamp device comprising a lamp holder, an LED module and a shield.
  • the lamp holder comprises a power module.
  • the LED module disposed on the lamp holder, is electrically connected to the power module and is adapted for emitting light.
  • the shield disposed on the lamp holder, covers the LED module.
  • the material of the shield is solid.
  • the shield has a top portion, a lateral portion, an accommodating space, and an inner rough surface and an outer surface opposite to each other.
  • the composition of the shield comprises a light diffusing powder.
  • the lateral portion is connected to the lamp holder.
  • the thickness of the top portion is greater than that of the lateral portion.
  • the thickness of the shield is substantially and gradually increased from the lateral portion towards the top portion.
  • the LED module is located in the accommodating space, and the inner rough surface faces the accommodating space.
  • an LED lamp device comprising a lamp holder, an LED module and a shield.
  • the lamp holder comprises a power module.
  • the LED module disposed on the lamp holder, is electrically connected to the power module.
  • the LED module is adapted for emitting light.
  • the shield disposed on the lamp holder, covers LED module.
  • the shield whose material is solid, includes a top portion, a lateral portion, an accommodating space, an inner surface and an outer rough surface, which are opposite to each other.
  • the composition of the shield comprises a light diffusing powder.
  • the lateral portion is connected to the lamp holder.
  • the thickness of the top portion is greater than that of the lateral portion.
  • the thickness of the shield is substantially and gradually increased from the lateral portion towards the top portion.
  • the LED module is located in the accommodating space, and the inner surface faces the LED module.
  • an LED lamp device comprising a lamp holder, an LED module and a shield.
  • the lamp holder comprises a power module.
  • the LED module disposed on the lamp holder, is electrically connected to the power module and is adapted for emitting light.
  • the shield disposed on the lamp holder, covers the LED module.
  • the shield whose material is solid includes a top portion, a lateral portion, an accommodating space, an inner rough surface and an outer rough surface, which are opposite to each other.
  • the composition of the shield comprises a light diffusing powder.
  • the lateral portion is connected to the lamp holder.
  • the thickness of the top portion is greater than that of the lateral portion.
  • the thickness of the shield is substantially and gradually increased from the lateral portion towards the top portion.
  • the LED module is located in the accommodating space, and the inner rough surface faces the LED module.
  • the thickness of the shield is increased from the lateral portion towards the top portion.
  • the thickness of the shield is adjusted to make the thickness of the top portion greater than that of the lateral portion.
  • the material of the shield includes a light diffusion powder.
  • the shield includes an inner rough surface or an outer rough surface.
  • the shield includes an inner rough surface and an outer rough surface at the same time. The inner rough surface and the outer rough surface, which are unsmooth surfaces, are beneficial for spreading the light. When the LED module emits the light through the shield, the shield spreads the light, which enhances the illuminating angle of the light.
  • the balance between the heat dissipation and the wide illuminating angle is achieved.
  • the shape of the shield is between a hemispherical shape to a three-quarters-of-a-sphere shape, the LED lamp device achieves the full illuminating effect (namely, the light illuminates all round the LED lamp device).
  • An embodiment of the disclosure provides an LED lamp device, which is adapted to emit light for lighting.
  • FIG. 1 is a schematic perspective view of an LED lamp device according to a first embodiment of the disclosure.
  • FIG. 2 is a schematic exploded view of the LED lamp device according to the first embodiment of the disclosure.
  • an LED lamp device 100 comprises a lamp holder 200, a circuit board 300, a plurality of LED modules 310 and a shield 400.
  • the circuit board 300 is disposed on the lamp holder 200.
  • the LED module 310 is disposed on the circuit board 300, and the LED module 310 and the circuit board 300 are electrically connected to each other.
  • the shield 400, disposed on the circuit board 300 covers the LED module 310.
  • the number of the LED modules 310 is four, but is not limited to the disclosure. In other embodiments, the number of the LED modules 310 is adjusted according to actual requirement, and the number of the LED modules 310 is a positive integral number which is greater than one.
  • the lamp holder 200 comprises a power module 210 and a connector 220.
  • the connector 220 is adapted for receiving electrical energy (electricity) from an outer power source (not shown).
  • the power module 210 transforms the electrical energy from the connector 220 into the kind of electrical energy which can be used by the LED module 310.
  • the power module 210 transmits the electrical energy to the LED module 310.
  • the circuit board 300 is electrically connected to the power module 210.
  • the circuit board 300 is adapted for receiving the electrical energy from the power module 210 and for transmitting the electrical energy to the LED module 310, and therefore the LED module 310 emits light towards the shield 400.
  • FIG. 3 is a schematic cross-sectional view of a shield according to the first embodiment of the disclosure.
  • the material of the shield 400 is solid, and the shape of the shield 400 is between the hemispherical shape to three-quarters-of-a-sphere shape.
  • the shield 400 includes a top portion 410, a lateral portion 420, an inner rough surface 430, an outer surface 440 and an accommodating space 470.
  • the lateral portion 420 is connected to the lamp holder 200.
  • the thickness of the top portion 410 is greater than that of the lateral portion 420. That is to say, the thickness of the shield 400 is substantially and gradually increased from the lateral portion 420 towards the top portion 410.
  • the inner rough surface 430 and the outer surface 440 is opposite to each other.
  • the inner rough surface 430 is adapted for spreading the light emitted from the accommodating space 470 so as to enhance the illuminating angle of the light.
  • the inner rough surface 430 is an unsmooth surface. When the light passes through the inner rough surface 430, the light is refracted into different directions via the inner rough surface 430, thereby enhancing the illuminating angle of the light.
  • the inner rough surface 430 is a plane having a microstructure which refracts the light, or the roughness of the inner rough surface 430 may be adjusted. Therefore, the light spreading is enhanced.
  • the accommodating space 470 is adapted for containing the LED module 310.
  • the composition of the shield 400 comprises a light diffusing powder.
  • the shield 400 which has the light diffusing powder, is beneficial for spreading the light, thereby enhancing the illuminating angle of the light.
  • the shield 400 has a central axis 412 located in the top portion 410.
  • the thickness of the shield 400 is substantially and gradually decreased from the central axis 412 towards the lateral portion 420 in its entire circumferential direction.
  • the thickness of the shield 400 is substantially and gradually decreased from the central axis 412 towards the lateral portion 420" meaning that from the macroscopic view, the thickness of the shield 400 is gradually increased from the lateral portion 410 towards the top portion 420.
  • the thickness of the top portion 410 is greater than that of the lateral portion 420.
  • the light which is emitted by the LED module 310, illuminates towards outside from the accommodating space 470 of the shield 400 via the inner rough surface 430, so the light is spread by the inner rough surface 430.
  • the curvature variation of the top portion 410 of the shield 400 is larger than that of the lateral portion 420, so the refraction angle of the light is larger, too.
  • the light is spread towards the lateral portion 420.
  • the thickness of the lateral portion 420 is thinner. Therefore, because the curvature variation of the lateral portion 420 of the shield 400 is smaller, when the light, emitted by the LED module 310, illuminates towards the outside from the inside of the shield 400, the lateral portion 420 may enhance the luminance (brightness) of the light. Therefore, by the adjustment of the thickness of the shield 400, the shield 400 may increase the illuminating angle of the LED module 310, thereby achieving a full illumination (namely, all-around lighting) of the LED lamp device 100.
  • FIG. 4A is a schematic cross-sectional view of a shield according to a second embodiment of the disclosure
  • FIG. 4B is a schematic perspective view of the shield according to the second embodiment of the disclosure.
  • the structures in this embodiment are similar to those in the above-mentioned embodiments, thus the same numerals represent similar structures.
  • the inner rough surface 430 of the shield 402 further includes a plurality of circular grooves 438 adjacent to each other.
  • the shield 402 also enhances the illuminating angle of the light.
  • FIG. 5 is a schematic perspective view of a shield according to a third embodiment of the disclosure.
  • the structures in this embodiment are similar to those in the above-mentioned embodiments, thus the same numerals represent similar structures.
  • the inner rough surface 430 of the shield 403 includes a plurality of concave surfaces 434, and the concave surfaces 434 are formed downward from the accommodating space 470 towards the shield 403. With such a structure, when the light emits from the accommodating space 470 and passes through the concave surface 434, the light is also spread by the structure of the concave surface 434.
  • FIG. 6A is a schematic cross-sectional view of a shield according to a fourth embodiment of the disclosure
  • FIG. 6B is a schematic perspective view of the shield according to the fourth embodiment of the disclosure.
  • the structures in this embodiment are similar to those in the above-mentioned embodiments, thus the same numerals represent similar structures.
  • the inner rough surface 430 of the shield 404 includes a plurality of circular ribs 436.
  • the circular ribs 436 are adjacent to each other and protrude towards the accommodating space 470. Therefore, when the light is emitted from the accommodating space 470 towards the circular ribs 436, the light is refracted accordingly. That is, the circular ribs 436 adjust the travelling path of the light, which enhances the illuminating angle of the light.
  • the circular ribs 436 are an array of microstructures, and the array of microstructures also spread the light.
  • FIG. 7 is a schematic perspective view of a shield according to a fifth embodiment of the disclosure.
  • the structures in this embodiment are similar to those in the above-mentioned embodiments, thus the same numerals represent similar structures.
  • the inner rough surface 430 of the shield 405 includes a plurality of round surfaces 432, and the round surfaces 432 protrude towards the accommodating space 470.
  • the round surfaces 432 are a hyperboloid surface, a hemispherical-shape surface or an ellipse (oval) surface, but the shape and the number of round surfaces 432 are not limited to the disclosure.
  • the shields have different shapes of the inner rough surfaces, respectively, so as to spread the light.
  • the following describes some embodiments where the outer surface is a rough surface.
  • FIG. 8 is a schematic cross-sectional view of a shield according to a sixth embodiment of the disclosure.
  • the structures in this embodiment are similar to those in the above-mentioned embodiments, thus the same numerals represent similar structures.
  • the shield 406 in this embodiment includes an inner surface 450 and an outer rough surface 460 opposite to each other.
  • the inner surface 450 faces the accommodating space 470.
  • the outer rough surface 460 is adapted for spreading the light emitted from the accommodating space 470.
  • the outer rough surface 460 is an unsmooth surface. When the light passes through the outer rough surface 460, the light is refracted into different directions by the outer rough surface 460, thereby enhancing the illuminating angle of the light.
  • the outer rough surface 460 is a surface having microstructures which may spread the light or the roughness of the outer rough surface 460 may be adjusted, thereby enhancing the spread of the light.
  • the microstructures of the outer rough surfaces 460 are round surfaces (i.e., bumps), concave surfaces (i.e., notches), circular ribs or circular grooves (not shown). With the light spreading of the microstructure, the shield 406 also achieves the effect of light spreading.
  • FIG. 9 is a schematic cross-sectional view of a shield according to a seventh embodiment of the disclosure.
  • the structures in this embodiment are similar to those in the first and sixth embodiment, thus the same numerals represent similar structures.
  • the shield 407 in this embodiment includes an inner rough surface 430 and an outer rough surface 460 opposite to each other.
  • the inner rough surface 430 faces the accommodating space 470.
  • the outer rough surface 460 is an unsmooth surface which is beneficial for spreading the light, thereby enhancing the full illuminating.
  • the inner rough surface 430 and the outer rough surface 460 are the surfaces having a plurality of microstructures, respectively.
  • the microstructures are round surfaces, concave surfaces, circular ribs or circular grooves (not shown). With the light spreading of the microstructure, the shield 407 also achieves the effect of light spreading.
  • the sizes and thicknesses of the shield 400, 402-407, the inner rough surfaces 430, the round surfaces 432, the concave surfaces 434, the circular ribs 436, the circular grooves 438 and the outer rough surfaces 460 are not drawn according to actual proportions.
  • the LED lamp device comprises the shield having different thickness for enhancing the illuminating angle of the light. Therefore, Compared to the prior art, in the LED lamp device according to the embodiments of the disclosure, the thickness of the shield is adjusted to make the thickness of the top portion greater than that of the lateral portion. Furthermore, the material of the shield includes a light diffusion powder.
  • the shield includes an inner rough surface or an outer rough surface. In one embodiment, the shield includes an inner rough surface and an outer rough surface at the same time. The inner rough surface and the outer rough surface, which are unsmooth surfaces, are beneficial for spreading the light. When the LED module emits the light through the shield, the shield spreads the light, which enhances the illuminating angle of the light.
  • the balance between the heat dissipation and the wide illuminating angle is achieved.
  • the shape of the shield is between a hemispherical shape to a three-quarters-of-a-sphere shape, the LED lamp device achieves the full illuminating effect (namely, the light illuminates all round the LED lamp device).
EP13172678.8A 2012-06-22 2013-06-19 Dispositif de lampe à diode électroluminescente Ceased EP2677231A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW101122525A TWI506228B (zh) 2012-06-22 2012-06-22 發光二極體之燈具

Publications (1)

Publication Number Publication Date
EP2677231A1 true EP2677231A1 (fr) 2013-12-25

Family

ID=48670419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13172678.8A Ceased EP2677231A1 (fr) 2012-06-22 2013-06-19 Dispositif de lampe à diode électroluminescente

Country Status (3)

Country Link
EP (1) EP2677231A1 (fr)
JP (1) JP2014007157A (fr)
TW (1) TWI506228B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064576A1 (fr) * 2012-10-23 2014-05-01 Koninklijke Philips N.V. Couvercle optique pour module d'émission de lumière
CN104864298A (zh) * 2015-06-02 2015-08-26 闻国强 一种三防led灯灯罩
WO2015135697A1 (fr) * 2014-03-14 2015-09-17 Osram Gmbh Dispositif d'éclairage comprenant une source de lumière optoélectronique
CN106287323A (zh) * 2015-05-18 2017-01-04 东贝光电科技股份有限公司 轴对称发光的led球泡灯
WO2017072406A1 (fr) * 2015-10-26 2017-05-04 Ledil Oy Dispositif optique permettant de modifier la répartition lumineuse
CN108826227A (zh) * 2018-08-20 2018-11-16 叶雷 一种led三防灯灯罩
CN109882771A (zh) * 2019-03-14 2019-06-14 佛山市盛忻灯饰有限公司 一种灯罩及其壁灯
CN113432056A (zh) * 2021-07-14 2021-09-24 杭州涂鸦信息技术有限公司 夜灯
EP3832197A4 (fr) * 2018-08-02 2022-03-23 Radiant (Guangzhou) Opto-Electronics Co., Ltd. Structure d'abat-jour et lampe
US11879600B2 (en) 2019-11-18 2024-01-23 Signify Holding B.V. LED filament lamp

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987352A (zh) * 2015-03-05 2016-10-05 深圳市裕富照明有限公司 光学扩光件及发光装置
CN104747961A (zh) * 2015-04-22 2015-07-01 浙江九阳光电有限公司 一种大角度发光的led带罩灯
JP6877174B2 (ja) * 2017-02-20 2021-05-26 ニッタン株式会社 防災用表示灯
JP6342555B2 (ja) * 2017-07-24 2018-06-13 能美防災株式会社 表示灯
CN107830426A (zh) * 2017-11-28 2018-03-23 欧普照明股份有限公司 灯具及灯具的配光元件
TWI700840B (zh) * 2018-02-27 2020-08-01 大陸商廣州印芯半導體技術有限公司 光發射裝置
TWI687624B (zh) * 2019-10-25 2020-03-11 液光固態照明股份有限公司 照明裝置
CN113623554A (zh) * 2021-08-20 2021-11-09 杭州施瑞森光电工程有限公司 一种新型智能照明灯具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110031871A1 (en) * 2009-08-05 2011-02-10 Foxsemicon Integrated Technology, Inc. Lamps with replaceable covers
US20110103054A1 (en) * 2009-10-29 2011-05-05 Hon Hai Precision Industry Co., Ltd. Led illuminating device
US20120014116A1 (en) * 2010-07-19 2012-01-19 Wen-Sung Hu Light-Transmissive Shell Capable Of Intensifying Illuminant And Wide-Angle Light Transmission
US20120038260A1 (en) * 2010-08-13 2012-02-16 Foxsemicon Integrated Technology, Inc. Lamp envelope and led lamp using the same
US20120092852A1 (en) * 2009-05-11 2012-04-19 SemilLEDS Optoelectronics Co., Ltd Llb bulb having light extracting rough surface pattern (lersp) and method of fabrication
US20120134161A1 (en) * 2010-11-30 2012-05-31 Nobuo Kawamura Lighting apparatus
US20120155072A1 (en) * 2010-12-20 2012-06-21 Hon Hai Precision Industry Co., Ltd. Led tube lamp
CN202511042U (zh) * 2012-02-28 2012-10-31 苏州东亚欣业节能照明有限公司 球泡灯

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11014A (en) * 1854-06-06 Improved machine for cleaning and watering streets
US12003A (en) * 1854-11-28 Pianofokte-action
JP2009104940A (ja) * 2007-10-24 2009-05-14 Toshiba Lighting & Technology Corp 電球形蛍光ランプおよび照明器具
JP2010073438A (ja) * 2008-09-17 2010-04-02 Panasonic Corp ランプ
JP3147181U (ja) * 2008-10-07 2008-12-18 株式会社サンテック 照明装置用カバー及びこれを備える照明装置
TWM386445U (en) * 2009-12-10 2010-08-11 Domintech Co Ltd Lamp housing for use in electric light bulb
JP3159084U (ja) * 2010-02-18 2010-05-06 アイリスオーヤマ株式会社 Ｌｅｄ電球
JP2012093683A (ja) * 2010-10-01 2012-05-17 Asahi Kasei Corp 光拡散部材
JP4945690B1 (ja) * 2010-11-30 2012-06-06 株式会社東芝 照明装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120092852A1 (en) * 2009-05-11 2012-04-19 SemilLEDS Optoelectronics Co., Ltd Llb bulb having light extracting rough surface pattern (lersp) and method of fabrication
US20110031871A1 (en) * 2009-08-05 2011-02-10 Foxsemicon Integrated Technology, Inc. Lamps with replaceable covers
US20110103054A1 (en) * 2009-10-29 2011-05-05 Hon Hai Precision Industry Co., Ltd. Led illuminating device
US20120014116A1 (en) * 2010-07-19 2012-01-19 Wen-Sung Hu Light-Transmissive Shell Capable Of Intensifying Illuminant And Wide-Angle Light Transmission
US20120038260A1 (en) * 2010-08-13 2012-02-16 Foxsemicon Integrated Technology, Inc. Lamp envelope and led lamp using the same
US20120134161A1 (en) * 2010-11-30 2012-05-31 Nobuo Kawamura Lighting apparatus
US20120155072A1 (en) * 2010-12-20 2012-06-21 Hon Hai Precision Industry Co., Ltd. Led tube lamp
CN202511042U (zh) * 2012-02-28 2012-10-31 苏州东亚欣业节能照明有限公司 球泡灯

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064576A1 (fr) * 2012-10-23 2014-05-01 Koninklijke Philips N.V. Couvercle optique pour module d'émission de lumière
WO2015135697A1 (fr) * 2014-03-14 2015-09-17 Osram Gmbh Dispositif d'éclairage comprenant une source de lumière optoélectronique
CN106287323A (zh) * 2015-05-18 2017-01-04 东贝光电科技股份有限公司 轴对称发光的led球泡灯
CN104864298A (zh) * 2015-06-02 2015-08-26 闻国强 一种三防led灯灯罩
CN104864298B (zh) * 2015-06-02 2016-12-21 闻国强 一种三防led灯灯罩
US11036036B2 (en) 2015-10-26 2021-06-15 Ledil Oy Optical device for modifying light distribution
WO2017072406A1 (fr) * 2015-10-26 2017-05-04 Ledil Oy Dispositif optique permettant de modifier la répartition lumineuse
EP3832197A4 (fr) * 2018-08-02 2022-03-23 Radiant (Guangzhou) Opto-Electronics Co., Ltd. Structure d'abat-jour et lampe
CN108826227A (zh) * 2018-08-20 2018-11-16 叶雷 一种led三防灯灯罩
CN108826227B (zh) * 2018-08-20 2024-02-02 叶雷 一种led三防灯灯罩
CN109882771A (zh) * 2019-03-14 2019-06-14 佛山市盛忻灯饰有限公司 一种灯罩及其壁灯
US11879600B2 (en) 2019-11-18 2024-01-23 Signify Holding B.V. LED filament lamp
CN113432056A (zh) * 2021-07-14 2021-09-24 杭州涂鸦信息技术有限公司 夜灯

Also Published As

Publication number Publication date
TWI506228B (zh) 2015-11-01
TW201400759A (zh) 2014-01-01
JP2014007157A (ja) 2014-01-16

Similar Documents

Publication Publication Date Title
EP2677231A1 (fr) Dispositif de lampe à diode électroluminescente
KR200467989Y1 (ko) 조명 장치
TWI418737B (zh) 燈罩及燈具結構
US8297797B2 (en) Lighting apparatus
JP3148721U (ja) Ｌｅｄ照明装置
TWI412689B (zh) 燈具
TWI534390B (zh) 照明結構及其製造方法
US8696156B2 (en) LED light bulb with light scattering optics structure
KR20130033555A (ko) 엘이디 조명 장치
US20130027947A1 (en) Light emitting die (led) lamps, heat sinks and related methods
US9625107B2 (en) Light-emitting-diode-based light bulb
EP2743569A1 (fr) Luminaire, dispositif de lampe et lentille
KR101072584B1 (ko) 엘이디 조명 장치
TW201523033A (zh) 全向發光二極體透鏡
US9255673B2 (en) LED bulb having an adjustable light-distribution profile
US8960955B2 (en) LED lamp having a large illumination angle
KR20170064433A (ko) 벌브형 led 램프 및 이를 포함하는 차량용 램프
US20190056069A1 (en) Lamp structure
TWI409406B (zh) 發光二極體燈具
KR101220909B1 (ko) 형광등형 엘이디 조명등
KR200452760Y1 (ko) 엘이디 조명장치
TWI402454B (zh) Led日光燈
TW201430271A (zh) 發光二極體裝置
CN219867634U (zh) 一种大功率led光源模组及照明灯具
JP2008243770A (ja) 照明器具

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20140331

RBV Designated contracting states (corrected)

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

17Q First examination report despatched

Effective date: 20141222

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20160519