TWM446281U - 發光二極體導光燈具 - Google Patents

發光二極體導光燈具 Download PDF

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Publication number
TWM446281U
TWM446281U TW101216691U TW101216691U TWM446281U TW M446281 U TWM446281 U TW M446281U TW 101216691 U TW101216691 U TW 101216691U TW 101216691 U TW101216691 U TW 101216691U TW M446281 U TWM446281 U TW M446281U
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TW
Taiwan
Prior art keywords
light
light guide
emitting diode
disposed
emitting
Prior art date
Application number
TW101216691U
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English (en)
Inventor
林清鈿
Original Assignee
林清鈿
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 林清鈿 filed Critical 林清鈿
Priority to TW101216691U priority Critical patent/TWM446281U/zh
Publication of TWM446281U publication Critical patent/TWM446281U/zh
Priority to US13/804,338 priority patent/US20140063815A1/en
Priority to JP2013002254U priority patent/JP3184561U/ja

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Classifications

    • 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
    • F21K9/23Retrofit 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
    • 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
    • F21K9/61Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • 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
    • F21V13/00Producing 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
    • F21V13/02Combinations of only two kinds of elements
    • F21V13/04Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design
    • F21V7/041Optical design with conical or pyramidal surface
    • 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
    • F21V7/00Reflectors for light sources
    • F21V7/22Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V2200/00Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • 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]

Landscapes

  • 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)
  • Planar Illumination Modules (AREA)

Description

發光二極體導光燈具
本新型是有關於一種導光燈具,特別是指一種發光二極體導光燈具。
近年來,由於發光二極體(Light-Emitting Diode,簡稱LED)的技術逐漸成熟,且其具有效率高、壽命長、不易破損、反應速度快、可靠性高等傳統光源不及的優點,因此開始被普遍應用在各種照明器具上。
然而,發光二極體本身為一種點光源,所以具有出光角度較小的問題,且在高功率下使用時,炫光的情形相當嚴重,不能直接裸露當作燈具使用。
參閱圖1,習知之發光二極體導光燈具包含一基座11、複數發光二極體12,及一遮罩該等發光二極體12的光罩13。
習知技術中,藉由使用霧面的該光罩13,不僅可緩和該等發光二極體12的炫光情形,亦可使光線在經過該光罩13的折射後,變得更加均勻而柔和,並可加大出光角度。
然而,由於發光二極體12本身出光角度小的限制,為了避免沒有設置發光二極體12的位置與其他位置的亮度差異過大,而產生亮度不均勻的問題,必須在燈具上均勻密佈發光二極體12,而導致使用的發光二極體12數量較多,並產生發熱度高的問題。
因此,本新型之目的,即在提供一種可以使用較少的發光二極體達到均勻照明的發光二極體導光燈具。
於是,本新型發光二極體導光燈具,包含一基座、一設置於該基座的驅動電路、一發光模組、一導光板,及一反射層。
該發光模組具有複數電連接該驅動電路且環狀設置的發光二極體。
該導光板為可透光材質,對應該等發光二極體呈環狀設置於該基座,並包括一接收該等發光二極體之光線的接收端,及一遠離該接收端的發散端。
該反射層用以反射該等發光二極體之光線,包括一設置於該導光板內側的反射部,及一由該反射部延伸並設置於該發散端的阻擋部。
有關本新型之前述及其他技術內容、特點與功效,在以下配合參考圖式之一個較佳實施例的詳細說明中,將可清楚的呈現。
參閱圖2與圖3,本新型發光二極體導光燈具之較佳實施例包含一基座2、一設置於該基座2的驅動電路3、一發光模組4、一導光板5,及一反射層6。
該發光模組4具有複數電連接該驅動電路3且環狀設置的發光二極體41。
參閱圖2、圖4與圖5,該導光板5為可透光材質,對應該等發光二極體41呈環狀設置於該基座2,並包括一接 收該等發光二極體41之光線的接收端51,及一遠離該接收端51的發散端52,該接收端51底端形成複數凹槽511,該等凹槽511用以容納該等發光二極體41,可增加導光效果,並用以固定位置而不會隨意轉動。
於本實施例中,該導光板5呈截頭圓錐狀,其周徑由該發散端52往設置於該基座2的該接收端51漸縮,但該導光板5之外型亦可為其他實施樣態。
該反射層6用以反射該等發光二極體41之光線,包括一設置於該導光板5內側的反射部61,及一由該反射部61延伸並設置於該發散端52的阻擋部62。
於本實施例中,該反射層6為塑膠材質,且顏色為白色,但亦可為其他可反射光線的材質及顏色。
本實施例可用在燈泡用途,插在燈泡座上,但並不限於此,亦可使用在情境燈具或小夜燈等用途。
經由以上的說明,可將本實施例的優點歸納如下:
藉由該導光板5導引該等發光二極體41的光線,並藉由該反射層6將光線向外反射,可以改善眩光,並將點光源均勻轉換為面光源,可用以增加環境的氣氛,作為情境燈使用,相較於習知技術,可在使用較少數量的該等發光二極體41情況下,避免了亮度不均勻的問題,因此可減輕燈具的發熱情形,亦降低了散熱上的需求及成本。
而由於該等發光二極體41出光角度小,會傾向由該導光板5的接收端51沿該導光板5前進並由該發散端52發散,為了避免光線集中由該發散端52發散而無法均勻反射 ,故需藉由該阻擋部62將光線阻擋,再經該反射層6反射向外,以達到均勻散出的目的,搭配該導光板5之周徑由該發散端52至該接收端51漸縮,可使光線被更平均地反射,產生更均勻柔和的照明光線。
綜上所述,本新型不僅可使用較少的該等發光二極體41達到均勻照明,將點光源轉為面光源,亦可降低燈具的發熱情形,故確實能達成本新型之目的。
惟以上所述者,僅為本新型之較佳實施例而已,當不能以此限定本新型實施之範圍,即大凡依本新型申請專利範圍及新型說明內容所作之簡單的等效變化與修飾,皆仍屬本新型專利涵蓋之範圍內。
2‧‧‧基座
3‧‧‧驅動電路
4‧‧‧發光模組
41‧‧‧發光二極體
5‧‧‧導光板
51‧‧‧接收端
511‧‧‧凹槽
52‧‧‧發散端
6‧‧‧反射層
61‧‧‧反射部
62‧‧‧阻擋部
圖1是習知一種發光二極體導光燈具的立體示意圖;圖2是本新型發光二極體導光燈具之一較佳實施例的剖面示意圖;圖3是該較佳實施例的示意圖,說明複數發光二極體的排列方式;圖4是該較佳實施例的一導光板及一反射層的剖面示意圖;及圖5是該較佳實施例的該導光板的仰視示意圖。
2‧‧‧基座
3‧‧‧驅動電路
4‧‧‧發光模組
41‧‧‧發光二極體
5‧‧‧導光板
51‧‧‧接收端
52‧‧‧發散端
6‧‧‧反射層
61‧‧‧反射部
62‧‧‧阻擋部

Claims (6)

  1. 一種發光二極體導光燈具,包含:一基座;一驅動電路,設置於該基座;一發光模組,具有複數電連接該驅動電路且環狀設置的發光二極體;一導光板,為可透光材質,對應該等發光二極體呈環狀設置於該基座,並包括一接收該等發光二極體之光線的接收端,及一遠離該接收端的發散端;及一反射層,用以反射該等發光二極體之光線,包括一設置於該導光板內側的反射部,及一由該反射部延伸並設置於該發散端的阻擋部。
  2. 根據申請專利範圍第1項所述之發光二極體導光燈具,其中,該導光板之周徑由該發散端至該接收端漸縮,且該接收端設置於該基座。
  3. 根據申請專利範圍第2項所述之發光二極體導光燈具,其中,該導光板實質上呈截頭圓錐狀。
  4. 根據申請專利範圍第1項所述之發光二極體導光燈具,其中,該導光板的該接收端形成複數凹槽。
  5. 根據申請專利範圍第4項所述之發光二極體導光燈具,其中,該等凹槽用以容納該等發光二極體。
  6. 根據申請專利範圍第1項所述之發光二極體導光燈具,其中,該反射層為塑膠材質,且顏色為白色。
TW101216691U 2012-08-30 2012-08-30 發光二極體導光燈具 TWM446281U (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW101216691U TWM446281U (zh) 2012-08-30 2012-08-30 發光二極體導光燈具
US13/804,338 US20140063815A1 (en) 2012-08-30 2013-03-14 Led lamp
JP2013002254U JP3184561U (ja) 2012-08-30 2013-04-19 発光ダイオード灯具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW101216691U TWM446281U (zh) 2012-08-30 2012-08-30 發光二極體導光燈具

Publications (1)

Publication Number Publication Date
TWM446281U true TWM446281U (zh) 2013-02-01

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ID=48193723

Family Applications (1)

Application Number Title Priority Date Filing Date
TW101216691U TWM446281U (zh) 2012-08-30 2012-08-30 發光二極體導光燈具

Country Status (2)

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US (1) US20140063815A1 (zh)
TW (1) TWM446281U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3060840A4 (en) * 2013-10-25 2017-05-31 3M Innovative Properties Company Solid state area light and spotlight with light guide and integrated thermal guide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10738947B2 (en) 2014-09-02 2020-08-11 Sony Corporation Bulb-type light source apparatus and light guide member

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7588351B2 (en) * 2007-09-27 2009-09-15 Osram Sylvania Inc. LED lamp with heat sink optic
US8506103B2 (en) * 2008-11-26 2013-08-13 Keiji Iimura Semiconductor lamp and light bulb type LED lamp
US8282249B2 (en) * 2010-08-20 2012-10-09 Siltek Electronic (Guangzhou) Co., Ltd. Luminaire
WO2012042843A1 (ja) * 2010-09-29 2012-04-05 パナソニック株式会社 ランプ
JP5908673B2 (ja) * 2011-03-11 2016-04-26 ローム株式会社 Led電球
JP5704005B2 (ja) * 2011-07-26 2015-04-22 東芝ライテック株式会社 電球形ledランプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3060840A4 (en) * 2013-10-25 2017-05-31 3M Innovative Properties Company Solid state area light and spotlight with light guide and integrated thermal guide

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