CN108036204B - 一种消除杂光的cob光源 - Google Patents

一种消除杂光的cob光源 Download PDF

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CN108036204B
CN108036204B CN201711338807.6A CN201711338807A CN108036204B CN 108036204 B CN108036204 B CN 108036204B CN 201711338807 A CN201711338807 A CN 201711338807A CN 108036204 B CN108036204 B CN 108036204B
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led
led chips
chips
lamp string
led lamp
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CN108036204A (zh
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刘树菁
李金龙
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Guangdong Rayton Intelligent Opto Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64Optical 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33Elongate light sources, e.g. fluorescent tubes curved annular
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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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)
  • Led Device Packages (AREA)

Abstract

一种消除杂光的COB光源,包括基板和设置在基板上的LED芯片;所述基板上设有一个以上的LED灯串,所述LED灯串中的LED芯片相互串联且呈圆周分布,所述LED灯串由若干第一LED芯片和第二LED芯片组成,第一LED芯片与第二LED芯片间隔设置,第一LED芯片的发光面积大于第二LED芯片的发光面积。本发明通过LED灯串中第一LED芯片与第二LED芯片间隔分布的排列方式,利用两种芯片光辐射范围的特点,当LED灯串通入电流为第二LED芯片的额定电流时,大尺寸的第一LED芯片将小尺寸的第二LED芯片不能辐射到的荧光粉有效激发,使其出光均匀,同时又解决了大尺寸的第一LED芯片在额定电流条件下造成的顶部荧光粉过度激发造成的蓝斑现象。

Description

一种消除杂光的COB光源
技术领域
本发明涉及LED照明领域,尤其是一种消除杂光的COB光源。
背景技术
COB光源一般包括基板和设置在基板上的LED芯片,其中有些COB的LED需要通过小角度透镜进行出光,该种COB的LED芯片规格是是一致,其出光往往会出现黄蓝光斑,从而影响COB的出光效果。
发明内容
本发明所要解决的技术问题是提供一种消除杂光的COB光源,解决现有技术出现黄蓝光斑的问题。
为解决上述技术问题,本发明的技术方案是:一种消除杂光的COB光源,包括基板和设置在基板上的LED芯片;所述基板上设有一个以上的LED灯串,所述LED灯串中的LED芯片相互串联且呈圆周分布,所述LED灯串由若干第一LED芯片和第二LED芯片组成,第一LED芯片与第二LED芯片间隔设置,第一LED芯片的发光面积大于第二LED芯片的发光面积;通过LED灯串的电流大小为第二LED芯片的额定电流值。本发明通过LED灯串中第一LED芯片与第二LED芯片间隔分布的排列方式,利用两种芯片光辐射范围的特点,当LED灯串通入电流为第二LED芯片的额定电流时,大尺寸的第一LED芯片将小尺寸的第二LED芯片不能辐射到的荧光粉有效激发,使其出光均匀,同时又解决了大尺寸的第一LED芯片在额定电流条件下造成的顶部荧光粉过度激发造成的蓝斑现象。
作为改进,相邻LED灯串中的LED芯片一一对应。
作为改进,灯串中的第一LED成片与第二LED芯片等距设置。
本发明与现有技术相比所带来的有益效果是:
发明通过LED灯串中第一LED芯片与第二LED芯片间隔分布的排列方式,利用两种芯片光辐射范围的特点,当LED灯串通入电流为第二LED芯片的额定电流时,大尺寸的第一LED芯片将小尺寸的第二LED芯片不能辐射到的荧光粉有效激发,使其出光均匀,同时又解决了大尺寸的第一LED芯片在额定电流条件下造成的顶部荧光粉过度激发造成的蓝斑现象。
附图说明
图1为本发明结构示意图。
图2为芯片光辐射示意图。
具体实施方式
下面结合说明书附图对本发明作进一步说明。
如图1所示,一种消除杂光的COB光源,包括基板1和设置在基板1上一个以上的LED灯串2,本实施例应该设有两串LED灯串2,所述LED灯串2中的LED芯片相互串联且呈圆周分布,两串LED灯串2的中心重合且围成的直径大小不同,两LED灯串2中的LED芯片数量相等且一一对应,对应的两个LED芯片的连线指向LED灯串2的中心。
如图1所示,所述LED灯串2由若干第一LED芯片4和第二LED芯片3组成,第一LED芯片4与第二LED芯片3间隔且等距设置,第一LED芯片4余第二LED芯片3的朝向相同,第一LED芯片4的尺寸大于第二LED芯片3的尺寸,即第一LED芯片4的发光面积大于第二LED芯片3的发光面积。由于LED灯串2中的第一LED芯片4与第二LED芯片3相互串联,通过LED灯串2的电流大小为第二LED芯片3的额定电流值;如图2所示,第二LED芯片3工作在额定电流状态,第二LED芯片3额定电流条件下,其正面的光辐射与第一LED芯片4相同;另外,第一LED芯片4未达到额定状态,第一LED芯片4使用第二LED芯片3的额定电流工作时,其四周的光辐射会比第二LED芯片3大的多。
本发明通过LED灯串2中第一LED芯片4与第二LED芯片3间隔分布的排列方式,利用两种芯片光辐射范围的特点,当LED灯串2通入电流为第二LED芯片3的额定电流时,大尺寸的第一LED芯片4将小尺寸的第二LED芯片3不能辐射到的荧光粉有效激发,使其出光均匀,同时又解决了大尺寸的第一LED芯片4在额定电流条件下造成的顶部荧光粉过度激发造成的蓝斑现象。

Claims (1)

1.一种消除杂光的COB光源,包括基板和设置在基板上的LED芯片;其特征在于:所述基板上设有一个以上的LED灯串,所述LED灯串中的LED芯片相互串联且呈圆周分布,所述LED灯串由若干第一LED芯片和第二LED芯片组成,第一LED芯片与第二LED芯片间隔设置,第一LED芯片的发光面积大于第二LED芯片的发光面积;通过LED灯串的电流大小为第二LED芯片的额定电流值;相邻LED灯串中的LED芯片一一对应;灯串中的第一LED芯片与第二LED芯片等距设置。
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CN101819967A (zh) * 2009-02-27 2010-09-01 夏普株式会社 Led模块以及led光源装置
CN101881381A (zh) * 2009-05-05 2010-11-10 宁波晶科光电有限公司 白光发光二极管及白光发光二极管灯
CN203363733U (zh) * 2013-06-05 2013-12-25 漳州市灿华电子科技有限公司 一种新型的led面板发光模块
CN103791272A (zh) * 2013-09-25 2014-05-14 惠州元晖光电股份有限公司 具有大视角的照明装置
JP3207251U (ja) * 2016-08-10 2016-11-04 有限会社フジフロンティア 電飾花火
CN207584403U (zh) * 2017-12-14 2018-07-06 广东雷腾智能光电有限公司 一种cob光源

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WO2011133813A2 (en) * 2010-04-21 2011-10-27 Cooper Technologies Company Expandable led board architecture
CN102447049B (zh) * 2011-12-31 2013-08-14 杭州电子科技大学 一种基于cob封装技术的led封装结构及led照明装置
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CN101881381A (zh) * 2009-05-05 2010-11-10 宁波晶科光电有限公司 白光发光二极管及白光发光二极管灯
CN203363733U (zh) * 2013-06-05 2013-12-25 漳州市灿华电子科技有限公司 一种新型的led面板发光模块
CN103791272A (zh) * 2013-09-25 2014-05-14 惠州元晖光电股份有限公司 具有大视角的照明装置
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Denomination of invention: Cob light source for eliminating stray light

Effective date of registration: 20220506

Granted publication date: 20200317

Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch

Pledgor: GUANGDONG RAYTON INTELLIGENT OPTO. Co.,Ltd.

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PE01 Entry into force of the registration of the contract for pledge of patent right
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Denomination of invention: A COB light source for eliminating stray light

Effective date of registration: 20230616

Granted publication date: 20200317

Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch

Pledgor: GUANGDONG RAYTON INTELLIGENT OPTO. Co.,Ltd.

Registration number: Y2023980044439