TWI606207B - 光源模組 - Google Patents

光源模組 Download PDF

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Publication number
TWI606207B
TWI606207B TW103135494A TW103135494A TWI606207B TW I606207 B TWI606207 B TW I606207B TW 103135494 A TW103135494 A TW 103135494A TW 103135494 A TW103135494 A TW 103135494A TW I606207 B TWI606207 B TW I606207B
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TW
Taiwan
Prior art keywords
light
emitting diode
guide plate
light emitting
light guide
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TW103135494A
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English (en)
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TW201614165A (en
Inventor
黃國顏
陳建良
林建祥
紀德和
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鴻海精密工業股份有限公司
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Priority to TW103135494A priority Critical patent/TWI606207B/zh
Priority to CN201410813388.7A priority patent/CN105782769A/zh
Priority to US14/751,783 priority patent/US9651732B2/en
Priority to JP2015135014A priority patent/JP2016081904A/ja
Priority to EP15177570.7A priority patent/EP3009730A1/en
Publication of TW201614165A publication Critical patent/TW201614165A/zh
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Publication of TWI606207B publication Critical patent/TWI606207B/zh

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0066Light 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
    • G02B6/0073Light emitting diode [LED]
    • 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
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051Diffusing sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0066Light 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
    • G02B6/0068Arrangements of plural sources, e.g. multi-colour light sources
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083Details of electrical connections of light sources to drivers, circuit boards, or the like
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086Positioning aspects
    • G02B6/0091Positioning aspects of the light source relative to the light guide
    • 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
    • F21Y2103/10Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2105/00Planar light sources
    • 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]

Description

光源模組
本發明涉及一種供照明之光源模組,尤其涉及一種可提高光效之光源模組。
隨著照明技術演進,燈具所採用之光源從白熾燈泡、螢光燈管一直進展至近年來快速蓬勃發展之發光二極體(light emitting diode,LED)。發光二極體具有省電、使用壽命長、環保、啟動快速、體積小等多種優點,且發光二極體所能達到之功率隨著技術成熟而逐漸變大,發光二極體已有逐漸應用於一般照明以取代螢光燈管之趨勢。發光二極體發出之光線經導光板導引出來進而形成光源模組。然而傳統之發光二極體與導光板之間之關係,使得發光二極體中心最強之光線經導光板導引後並不能導出導光板,會損失光通量。
鑒於上述狀況,有必要提供一種可提高光效之光源模組。
一種光源模組,包括電路板、電連接於該電路板上之發光體、導光板、反射片、擴散板及框架,該導光板一端與該發光體相鄰,該反射片位於該導光板之一側,該擴散板位於該導光板遠離該反射片之一側,該框架用於區隔固定該電路板、發光體、導光板、反射片及擴散板,該發光體 通電後發出之光線經該導光板及該反射片導引後藉由該擴散板出光,該導光板具有一入光面,該發光體具有一出光面,該發光體之出光面與該導光板之入光面之間形成一夾角,該發光體之中心光線經該導光板及該反射片導引後導出該導光板,進而提高該光源模組之光效,該擴散板包括擴散部及連接於該擴散部之安裝部,該安裝部鄰近該框架一端設有卡扣,該框架有一頂面,該框架自該頂面開設第一容置槽,該框架於該第一容置槽內開設有與該卡扣相對應之通孔,該卡扣插入該通孔以使該擴散板與該框架固定,該第一容置槽內開設一聚光槽,該聚光槽與該第一容置槽之間存在一倒角,該聚光槽使該導光板導出之光線均勻地通過該擴散板。
本發明之光源模組,利用發光二極體與導光板之入光面之間之夾角,將發光二極體中心最強之光線導引出導光板,提高光源模組之光效;利用焊錫使發光二極體與電路板垂直焊接,降低該光源模組之高度。
100‧‧‧光源模組
60‧‧‧電路板
61‧‧‧焊盤
10‧‧‧發光體
11‧‧‧發光二極體
12‧‧‧焊錫
111‧‧‧陽極引腳
112‧‧‧陰極引腳
20‧‧‧導光板
21‧‧‧底面
22‧‧‧入光面
23‧‧‧反射面
24、113‧‧‧出光面
30‧‧‧反射片
40‧‧‧擴散板
41‧‧‧擴散部
42‧‧‧安裝部
421‧‧‧卡扣
50‧‧‧框架
51‧‧‧頂面
52‧‧‧第一容置槽
521‧‧‧通孔
53‧‧‧聚光槽
54‧‧‧通槽
55‧‧‧第二容置槽
56‧‧‧第三容置槽
57‧‧‧導電部
58‧‧‧凹槽
圖1為本發明一實施例中之光源模組之立體組裝圖。
圖2為圖1所示光源模組一方向之分解示意圖。
圖3為圖1所示光源模組另一方向之分解示意圖。
圖4為圖2所示光源之局部放大示意圖。
圖5為圖1所示光源模組沿V-V線之剖面圖。
圖6為圖5所示發光二極體之中心光線於導光板內傳導示意圖。
請參閱圖1-3,本發明一種實施方式中之光源模組100,其包括電路板60、電連接於該電路板60上之發光體10、導光板20、反射片30、擴散 板40及框架50。導光板20一端與該發光體10相鄰,反射片30位於導光板20之一側,擴散板40位於導光板20遠離反射片30之一側,框架50用於區隔固定電路板60、發光體10、導光板20、反射片30及擴散板40。發光體10通電後發出之光線經導光板20及反射片30導引後藉由擴散板40擴散後出光而形成一均勻平面光源。
請一併參閱圖4,發光體10包括連接於電路板60一側端之至少一發光二極體11及連接於電路板60與至少一發光二極體11之間之至少二焊錫12。電路板60鄰近至少一發光二極體11之一側設有焊盤61。
本實施方式中,發光二極體11之個數為十,焊錫12之個數為二十,十發光二極體11均勻地排列於一條直線上,二十焊錫12均勻地排列於一條直線上。每一發光二極體11鄰近電路板60邊緣之一側面設有用於導電之陽極引腳111及陰極引腳112。每一發光二極體11對應與二焊錫12連接,其中,一焊錫12一端焊接於焊盤61上,鄰近發光二極體11一端焊接於發光二極體11之陽極引腳111上,另一焊錫12一端焊接於焊盤61上,鄰近發光二極體11一端焊接於發光二極體11之陰極引腳112上。發光二極體11具有一出光面113(見圖5),出光面113鄰近導光板20,發光二極體11導電後,發光二極體11之光線從出光面113導出。
請一併參閱圖6,導光板20呈板塊狀,導光板20包括底面21、位於底面21一側之入光面22、位於底面21另一側之反射面23及與底面21相對之出光面24。入光面22相對底面21傾斜設置,底面21鄰近該發光二極體11之一端到該發光二極體11之距離與該出光面24鄰近該發光二極體11之一端到該發光二極體11之距離不相等。本實施方式中,入光面22與底面21之夾角為一銳角,底面21鄰近該發光二極體11之一端到發光二極體11之距離小於出光面24鄰近該發光二極體11之一端到發光二極體11之距離。
可理解,其他實施方式中,入光面22與底面21之夾角可為一鈍角,底面21到發光二極體11之距離大於出光面24到發光二極體11之距離。
反射片30緊鄰導光板20之底面21設置,反射片30對導光板20內光線進行反射。
擴散板40包括擴散部41及連接於擴散部41之安裝部42。擴散部41鄰近導光板20之出光面24,擴散部41將從出光面24穿出之光線進行擴散,進而形成一均勻之光源。安裝部42鄰近框架50一端設有卡扣421,本實施方式中,卡扣421之數量為二,分別位於擴散部41之兩端。
框架50有一頂面51,框架50自頂面51開設第一容置槽52,框架50於第一容置槽52內開設有與卡扣421相對應之通孔521,本實施方式中,通孔521之數量相對應也為二。框架50於第一容置槽52內開設聚光槽53,聚光槽53與第一容置槽52之間存在一倒角,聚光槽53使導光板20導出之光線均勻地通過擴散板40。框架50於聚光槽53內開設一貫穿框架50之通槽54。框架50於頂面51之對面開設一第二容置槽55,框架50於第二容置槽55內開設有與通槽54相連通之第三容置槽56。本實施方式中,第三容置槽56之數量為兩個,分別位於通槽54之對側。
本實施方式中,框架50鄰近第三容置槽56設置有導電部57,框架50遠離導電部57一端開設一凹槽58。導電部57可使外部電源與電路板60電性連接,以使發光二極體11通電。凹槽58可與外部安裝連接進而固定光源模組100。
請一併參閱圖5,組裝時,首先將反射片30與導光板20之底面21連接,並將反射片30遠離導光板20之一側與電路板60連接,使得導光板20之入光面22與發光二極體11緊鄰連接;再將電路板60連接反射片30與導光板20一側收容於第二容置槽55,並使導光板20收容於第三容置槽56;最後 將擴散板40之卡扣421卡入框架50之通孔521以使擴散板40固定於框架50,完成組裝。
請參閱圖5及圖6,使用時,將電路板60與外部電源電性連接,使發光二極體11通電發光,發光二極體11之光線從出光面113導出後,經入光面22折射後進入導光板20,再經反射片30、導光板20之反射面23及出光面24作用導出導光板20,從導光板20射出之光線經過擴散板40擴散後,進而形成均勻之光源。由於發光二極體11與導光板20之入光面22存在一夾角,發光二極體11中心最強之光線經導光板20引導後可導出導光板20,進而增強光源模組100之出光量,提高光源模組100之輝度。
可理解,發光二極體11及焊錫12之數量不限定於本實施方式之十發光二極體11及二十焊錫12,發光二極體11及焊錫12之具體數量可根據實際情況決定。
可理解,擴散板40與框架50固定方式不限於卡扣421卡入通孔521之固定方式,還可通過其它方式固定,例如在擴散板40及框架50上設置相應之螺紋孔,利用螺絲穿過螺紋孔將擴散板40與框架50固定。
本發明之光源模組,利用發光二極體與導光板之入光面之間之夾角,將發光二極體中心最強之光線導引出導光板,提高光源模組之光效;利用焊錫使發光二極體與電路板垂直焊接,降低該光源模組之高度。
60‧‧‧電路板
11‧‧‧發光二極體
113‧‧‧出光面
12‧‧‧焊錫
20‧‧‧導光板
30‧‧‧反射片
40‧‧‧擴散板
421‧‧‧卡扣
50‧‧‧框架
52‧‧‧第一容置槽
53‧‧‧聚光槽
54‧‧‧通槽
56‧‧‧第三容置槽

Claims (8)

  1. 一種光源模組,包括電路板、發光體、導光板、反射片、擴散板及框架,該發光體電連接該電路板,該導光板一端與該發光體相鄰,該反射片位於該導光板之一側,該擴散板位於該導光板遠離該反射片之一側,該框架用於區隔固定該電路板、發光體、導光板、反射片及擴散板,該發光體通電後發出之光線經該導光板及該反射片導引後藉由該擴散板出光,該導光板具有一入光面,該發光體具有一出光面,其改良在於:該發光體之出光面與該導光板之入光面之間形成一夾角,該發光體之中心光線經該導光板及該反射片導引後導出該導光板,進而提高該光源模組之光效,該擴散板包括擴散部及連接於該擴散部之安裝部,該安裝部鄰近該框架一端設有卡扣,該框架有一頂面,該框架自該頂面開設第一容置槽,該框架於該第一容置槽內開設有與該卡扣相對應之通孔,該卡扣插入該通孔以使該擴散板與該框架固定,該第一容置槽內開設一聚光槽,該聚光槽與該第一容置槽之間存在一倒角,該聚光槽使該導光板導出之光線均勻地通過該擴散板。
  2. 如申請專利範圍第1項所述之光源模組,其中,該發光體包括連接於該電路板一側端之至少一發光二極體及連接該電路板與該至少一發光二極體之至少二焊錫,該電路板鄰近該至少一發光二極體之側端設有焊盤,該至少一發光二極體鄰近該電路板邊緣之一側面設有用於導電之陽極引腳及陰極引腳,該至少一發光二極體與該至少二焊錫連接,該至少二焊錫之一端焊接於該焊盤上,該至少二焊錫之一焊錫鄰近該至少一發光二極體一端焊接於該至少一發光二極體之陽極引腳上,該至少二焊錫之另一焊錫鄰近該至少一發光二極體一端焊接於該至少一發光二極體之陰極引腳上。
  3. 如申請專利範圍第2所述之光源模組,其中,該發光體之至少一發光二極體均勻地排列於一條直線上,該發光體之至少二焊錫均勻地排列於一條直線上。
  4. 如申請專利範圍第2項所述之光源模組,其中,該導光板還包括底面、位於該入光面對側之反射面及與該底面相對之出光面,該入光面相對該底面傾斜設置,該底面鄰近該發光二極體之一端到該發光二極體之距離與該出光面鄰近該發光二極體之一端到該發光二極體之距離不相等。
  5. 如申請專利範圍第4項所述之光源模組,其中,該入光面與該底面之夾角為一銳角,該底面鄰近該發光二極體之一端到該發光二極體之距離小於該出光面鄰近該發光二極體之一端到該發光二極體之距離。
  6. 如申請專利範圍第5項所述之光源模組,其中,該框架於該第一容置槽內開設貫穿該框架之通槽,該框架於該頂面之對面開設一第二容置槽,該框架於該第二容置槽內開設有一第三容置槽,該導光板收容於該第三容置槽,該電路板收容於該第二容置槽,該第三容置槽與該通槽相連通以使發光體發出之光線從該通槽中穿過進而由該擴散部發散。
  7. 如申請專利範圍第6項所述之光源模組,其中,該卡扣之數量為二,分別位於該擴散部之兩端,該通孔之數量對應也為二。
  8. 如申請專利範圍第6項所述之光源模組,其中,該框架鄰近該第三容置槽設置有導電部,該框架遠離該導電部一端開設一凹槽,該導電部使外部電源與該電路板電性連接以使發光二極體通電發光,該凹槽與外部安裝連接進而固定該光源模組。
TW103135494A 2014-10-14 2014-10-14 光源模組 TWI606207B (zh)

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