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CN101936479A - 发光二极管灯具 - Google Patents

发光二极管灯具 Download PDF

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Publication number
CN101936479A
CN101936479A CN2010102932943A CN201010293294A CN101936479A CN 101936479 A CN101936479 A CN 101936479A CN 2010102932943 A CN2010102932943 A CN 2010102932943A CN 201010293294 A CN201010293294 A CN 201010293294A CN 101936479 A CN101936479 A CN 101936479A
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light
emitting diode
lampshade
base
distribution plate
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Inventor
章绍汉
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Priority to CN2010102932943A priority Critical patent/CN101936479A/zh
Publication of CN101936479A publication Critical patent/CN101936479A/zh
Priority to US13/048,875 priority patent/US8376579B2/en
Pending legal-status Critical Current

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    • 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
    • F21K9/69—Details of refractors 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
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • 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
    • F21V29/89—Metals
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • F21V29/76—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
    • F21V29/767—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 directions perpendicular to the light emitting axis
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种发光二极管灯具，包括基座和固定于基座上的灯罩和光源基板，所述光源基板上安装有发光二极管，还包括固定于基座上的配光板，所述配光板的两侧分别与灯罩、光源基板相对，配光板形成有多个凸起，该凸起用于将来自该发光二极管的以预定入射角入射到该配光板的光线进行全反射。该发光二极管灯具通过配光板改变光的发射方向，使光照更均匀，从而减少眩光。

Description

发光二极管灯具
技术领域
本发明涉及一种照明装置，特别涉及一种适用于室内照明的发光二极管灯具。
背景技术
和传统光源相比，发光二极管具有体积小、寿命长、低驱动电压、启动快速、环保、抗震抗压等优点，现已被广泛地应用于日常室内照明。然而由于发光二极管较小的发光点和光束角，通常使得发光二极管的光强较为集中，容易对观测者造成眩光，造成观测者视觉疲劳和头痛等不良反应。
发明内容
有鉴于此，本发明提供一种出光均匀度高、可降低眩光的发光二极管灯具。
一种发光二极管灯具，包括基座和固定于基座上的灯罩和光源基板，所述光源基板上安装有发光二极管，还包括固定于基座上的配光板，所述配光板的两侧分别与灯罩、光源基板相对，配光板形成有多个凸起，该凸起用于将来自该发光二极管的以预定入射角入射到该配光板的光线进行全反射。
上述发光二极管灯具通过配光板改变光的发射方向，使光照更均匀，从而减少眩光。
附图说明
图1是本发明一实施方式中发光二极管灯具的示意图。
图2是图1中的发光二极管灯具的横截面示意图。
图3是图2中的发光二极管灯具正向发射的光的光路示意图。
图4是图2中的发光二极管灯具斜向发射的光的光路示意图。
图5是本发明另一实施方式中的发光二极管灯具的横截面示意图。
主要元件符号说明
  发光二极管灯具   100
  基座   10
  灯罩   20
  电源连接器   30
  光源基板   40
  配光板   50
  发光二极管   42
  散热鳍片   12
  卡槽   14
  卡扣部   22
  第一收容腔   16
  第二收容腔   18
  反射层   44
  凸起   52
  峰部   54
  透镜阵列   24
具体实施方式
请同时参考图1与图2，发光二极管灯具100大致为细长圆管状结构，包括基座10、灯罩20、电源连接器30、光源基板40和配光板50。灯罩20、光源基板40与配光板50均固定于基座10上。电源连接器30设置在发光二极管灯具100的两个端部，电源连接器30与电源(未示出)电连接。光源基板40与电源连接器30电连接，其上安装有可发光的发光二极管42。配光板50用于改变来自发光二极管42所发射的光的方向。
基座10采用散热性较好的铝合金基材制造，可疏散发光二极管灯具100工作时产生的热量。基座10底部设置有相互间隔一定距离的多个散热鳍片12，散热鳍片12用来增加基座10的表面积，以加快空气流通与散热效率。基座10的边缘形成有卡槽14，灯罩20的边缘相向地伸出卡扣部22，卡扣部22卡设于卡槽14内，将灯罩20固定在基座10上。基座10还形成有靠近灯罩20的第一收容腔16与远离灯罩20的第二收容腔18。
光源基板40收容于第一收容腔16内，光源基板40与基座10之间通过高导热性的导热胶带相贴合，导热胶带可以更好的将光源基板40产生的热量传导至基座10，然后通过散热鳍片12与空气进行热交换。光源基板40在发光二极管42所在的表面涂覆有反射层44。
配光板50收容于第二收容腔18内，配光板50的两侧分别与光源基板40、灯罩20正对设置。配光板50与灯罩20相对的表面形成多个凸起52，该凸起52首尾相接形成锯齿状。每一凸起52的横截面为等腰三角形，其顶部54的角度设置为可使凸起52将来自发光二极管42接近正向发射的光线进行全反射的角度。
请参阅图3，发光二极管42正向或接近正向发射的光线投射至处于中央位置的凸起52上并被该凸起52进行全反射。该光线经全反射后投射至反射层44上，反射层44将该光线再次反射至处于外围的凸起52，其入射角相对第一次时减小。在此，该“外围的凸起52”指位于该中央位置两侧的凸起52。该光线经一次或多次全反射后，其入射角将小于一临界角，可经处于外围的凸起52折射至灯罩20上后射出。如此，发光二极管42正向或接近正向发射的光线通过配光板50的反射与折射，可部分地自处于外围的凸起52射出，使中央光线减少并产生散光效果，使光照更均匀，光照效果更柔和，从而减少眩光。
请参阅图4，发光二极管42斜向发射的光经凸起52反射，光的散射角收敛，使得外围光线分布密度更接近于中央的分布密度，使照度更均匀。
请参阅图5，在另一实施方式中，灯罩20外表面形成有弧面状透镜阵列24，该透镜阵列24对发射至灯罩20的光线产生发散作用，从而增大发光二极管42的出光角度，使得光照效果更柔和。弧面状透镜阵列24也可形成于灯罩20的内表面。
本技术领域的普通技术人员应当认识到，以上的实施方式仅是用来说明本发明，而并非用作为对本发明的限定，只要在本发明的实质精神范围之内，对以上实施例所作的适当改变和变化都落在本发明要求保护的范围之内。

Claims (8)

1.一种发光二极管灯具，包括基座和固定于基座上的灯罩和光源基板，所述光源基板上安装有发光二极管，其特征在于，还包括固定于基座上的配光板，所述配光板的两侧分别与灯罩、光源基板相对，配光板形成有多个凸起，该凸起用于将来自该发光二极管的以预定入射角入射到该配光板的光线进行全反射。
2.如权利要求1所述的发光二极管灯具，其特征在于：所述灯罩外表面形成有弧面状透镜阵列。
3.如权利要求1所述的发光二极管灯具，其特征在于：所述灯罩内表面形成有弧面状透镜阵列。
4.如权利要求1所述的发光二极管灯具，其特征在于：所述多个凸起收尾相接形成锯齿状。
5.如权利要求1所述的发光二极管灯具，其特征在于：所述光源基板在发光二极管所在的表面涂覆有反射层。
6.如权利要求1所述的发光二极管灯具，其特征在于：所述基座形成有卡槽，灯罩相向形成有卡扣部，该卡扣部卡设于卡槽内，将灯罩固定在基座上。
7.如权利要求1所述的发光二极管灯具，其特征在于：所述基座还包括多个间隔设置的散热鳍片。
8.如权利要求1所述的发光二极管灯具，其特征在于：所述基座形成有靠近灯罩的第一收容腔与远离灯罩的第二收容腔，光源基板收容于第一收容腔内，配光板收容于第二收容腔内。
CN2010102932943A 2010-09-27 2010-09-27 发光二极管灯具 Pending CN101936479A (zh)

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US13/048,875 US8376579B2 (en) 2010-09-27 2011-03-16 LED lamp

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CN102679226A (zh) * 2012-05-31 2012-09-19 东莞市帝信光电科技有限公司 一种大发光面无暗区led灯管
JP2013012453A (ja) * 2011-06-02 2013-01-17 Rohm Co Ltd Ｌｅｄランプ
CN104421844A (zh) * 2013-09-03 2015-03-18 深圳市海洋王照明工程有限公司 灯具用的透明件及灯具
EP2732201A4 (en) * 2011-07-14 2015-08-12 Justing Technology Pte Ltd LAMP TUBES
CN105371231A (zh) * 2014-09-01 2016-03-02 鸿富锦精密工业（深圳）有限公司 照明装置
CN105782787A (zh) * 2016-05-20 2016-07-20 安徽捷迅光电技术有限公司 一种灯条散热装置
CN106801836A (zh) * 2017-03-20 2017-06-06 深圳市紫光照明技术股份有限公司 一种具有摄像功能的灯具

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US7938562B2 (en) 2008-10-24 2011-05-10 Altair Engineering, Inc. Lighting including integral communication apparatus
US8324817B2 (en) 2008-10-24 2012-12-04 Ilumisys, Inc. Light and light sensor
US8214084B2 (en) 2008-10-24 2012-07-03 Ilumisys, Inc. Integration of LED lighting with building controls
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