TW541726B - Side emitting LED - Google Patents

Side emitting LED Download PDF

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Publication number
TW541726B
TW541726B TW091108983A TW91108983A TW541726B TW 541726 B TW541726 B TW 541726B TW 091108983 A TW091108983 A TW 091108983A TW 91108983 A TW91108983 A TW 91108983A TW 541726 B TW541726 B TW 541726B
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Taiwan
Prior art keywords
light
lens
patent application
package
scope
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TW091108983A
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English (en)
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Robert S West
Gary D Sasser
James W Stewart
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Lumileds Lighting Llc
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0071Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source adapted to illuminate a complete hemisphere or a plane extending 360 degrees around the source
    • 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
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58Optical field-shaping elements
    • 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
    • F21V7/0091Reflectors for light sources using total internal reflection
    • 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]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58Optical field-shaping elements
    • H01L33/60Reflective elements

Description

541726 A7 B7
發明範疇 且' 特別是關於側 本發明概有關於一種發光二極體裝置 邊發光二極體(LED)。 相關技藝說明 該LED封裝1〇具有一業
出光線反射朝向某特定方向。 圖1 A說明一傳統式LED封裝10。該LE1 界眾知型式的圓形透鏡12。該封裝1 〇也^ (未以圖示)’其中置駐以一 L E D晶片(未以 射自該LED晶片底部與側邊所發屮μ止μ 該透鏡12可產生一光域14,概為沿該LED封裝1〇之一縱 封裝軸16。從該具圓形透鏡122LED封裝1〇所發出的大部 分光線會被向上射出離於該LED封裝1〇,而僅少部分的發 出量會從該該LED封裝10的側邊離出。 圖1B說明眾知且具一縱封裝軸26的發光二極體(led)封 裝30。該LED封裝30包括一 LED晶片38、一具直線垂直側壁 35及一隧形頂部表面37之透鏡32。在此,光線會有兩條主 要路徑叫傳旅行經此封裝3〇。第一條路徑p 1會為較佳,因 為光線從該晶片38發出,行旅至表面37,在此,全内反射 (TIR)會使得光線按相對該橫軸為約9〇度的角度而自該側壁 3 3離出。第一條路徑P2是從該晶片3 8發出按一角度朝向該 側壁35的光線會引起從該側壁35之TIR或反射,使得該光線 會按一個並不接近於垂直該橫軸的角度而離出該封裝3 0。 < ίτ、路f二並非所欲者’同時會限制經側邊移除之光線的政 本紙張&度適财g时標準(CNS) 規格咖χ 297公爱) A7 B7
541726 五、發明説明( 益性。 圖2說明如圖丨之傳統式LED封裝10,此者係沿一折射光 導器20之局部的邊緣所耦接。該LED封裝1〇位於光導器2〇 沿该光導器2〇的寬度之邊緣處。由該led封裝1 〇所發出的 光線Rl、R2、R3會被沿該光導器20的長度所傳播。圖3說 明複數個傳統式LED封裝1〇,該等係沿如圖2之光導器⑼的 寬度上所放置。這些傳統式LED/光導器組合並不具效益, 由於這些會要求大量的LED封裝10來照明該光導器,從而 會因相當小的可接收角度而造成耦接無效益性。這些傳統 式LED封裝1 〇必須要是沿該光導器2〇的側邊上整個長度而 排置’以完全地照明該光導器2〇。 故確需要一種LED封裝,俾以有效率地耦接到淺型反射 器及薄型光導器。同時亦需要一種LED封裝,以讓這些次 級光學元件能夠具備相當大的照明區域。
發明概I 一種具側邊發光的發光二極體,可令光導器及反射器具 備極薄的外型而擁有大照明區域。 根據本發明一具體實施例,一種發光裝置’其中含有一 發光二極體封裝。該封裝具有一前端表面和一後端表面, 的光線。該透鏡的形狀係為將從該二極體所收到的光線, 包含在該第-方向上的光線’予以重新導向使得從該透 I紙張尺度適用中國國家標準(CN^IT規格(21〇 χ 297公釐)--—- 裝. 訂
並含有-發光二極劈,供以至少於一近似法向垂直於前端 表面的第一方向上發射光線而離出該封裝。在此亦有一透 鏡,該者延伸離於該封裝前端表面以接收來自於該二極體 541726 A7
鏡來的大部分光線會概為平行於該封裝前端表面。 根據本發明另一具體實施例,一種從發光二極體發射光 線的方法,包含從一發光二極體封裝產生一光線輪出。該 封裝具一前端表面和一後端表面,並含有一發光二極體, 供以至少於一近似法向垂直於前端表面的第一方向上發射 光線而離出該封裝。該方法包括利用一透鏡將從該二極體 所收到的光線重新導向’此透鏡延伸離於該封裝前端表面 ,以接收來自於該二極體的光線,包含在該第一方向上的 光線,在此該透鏡會將光線重新導向,使得從該透鏡來的 大部分光線會概為平行於該封裝前端表面。 邏式簡單說明 可藉後載詳細說明並連同各隨附圖式以完整瞭解本發 明。 圖1A說明一傳統式LED封裝; 圖1B說明另一傳統式LED封裝; 圖2說明一傳統式邊緣照明光導器之截面圖; 圖3說明如圖2光導器之外覲圖; 圖4說明本發明一具體實施例; 圖5A說明如圖4 LED封裝之戴面圖; 圖5B說明一配接於該LED封裝基座承體之透鏡戴面圖; 圖5C說明一配接於如圖5B之透鏡/承體細部圖; 圖5D說明一配接於一LED封裝之透鏡上蓋戴面圖; 圖5 E說明一透鏡具體實施例之光線行跡; 圖5 F說明另一透鏡具體實施例之光線行跡; -6 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 541726 A7 _______B7 五、發明説明(4 ) 圖5 G說明又另一透鏡具體實施例之光線行跡; 圖6說明如圖4之L E D封裝發出的光線惻邊射出; 圖7A說明一如圖4之LED封裝發出的光線惻邊射出,而進 入一光導器之载面圖; 圖7B說明一如圖4之LED封裝發出的光線側邊射出’而進 入一光導器之戴面圖; 圖7C說明一如之LED封裝發出的光線側邊射出,而進 入一光導器之截面圖; 圖7D說明一如圖4之LED封裝發出的光線側邊射出,而進 入一光導器之载面圖; 圖8說明一光導器外觀圖; 圖9A說明一如圖4而經架置於一光導器之暗孔上的LED封 裝戴面圖; 圖9B說明一如圖4而經架置於一光導器之暗孔上的LED封 裝截面圖\ 圖9C說明一如圖4而經架置於一光導器之暗孔上的LED封 裝戴面圖; 圖10說明一如圖4而經架置於一光導器之透孔上的LED封 裝戴面圖; 圖1 1說明一耦接於一反射器之傳統式LED封裝; 圖12說明一如圖4且併合有一淺型反射器之LED封裝; 在各圖中應用相同的參考編號表示類似或等同項目。 發明詳細說明 圖4說明一根據本發明具體實施例之惻邊發光匕e d封裝範 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 、發明説明(5 ) 例。該LED封裝40包括一橫封裝軸43、一 LED封裝基座42及 一透鏡44。該透鏡44係經耦接於該LED封裝基座42。該橫 封裝軸43通過該LED封裝基座42和該透鏡44的中心。即如 圖5 A所示,該Led封裝基座42的表面會支撐一 LED晶片52 (—種具有發光pn接合的半導體晶片)以產生光線。該LED晶 片5 2可為任意種外形的其中一者,包含,但不限於,經平 戴之反置塔型(TIP)(如圖示)、立方體、長方二極體或圓球 狀。4LED晶片52可包括一底部表面,可接觸於,會予鍍 層,一反射性材料。該LED晶片52雖可自其所有側邊發出 光線,然該基座42係概經組態設定,以將所發出光線沿該 封裝的橫封裝軸43反射朝向該透鏡44。這種基座屬傳統式 ’且可包括一橢圓形反射鏡,其中該LED晶片52駐置於該 封裝基座42的表上。這種封裝的可如美國專利第4,92〇,4〇4 波案文所示者,該案經受讓予本受讓人,並以引用方式併 入本案。· 可利用多種眾知技術,像是鑽石轉磨(亦即透鏡是藉具鑽 石鑽具之車床所塑升))、注入模造及鑄模等作業,依個別元 件方式來製造該透鏡44。該透鏡44可為透明材料所製,包 含,但不限於環烯共聚合物(C0C)、聚甲基丙烯酸甲酯 (P_A)、多元碳酸酷(PC)、PC/PMMA及也 (PEI)。該透鏡44含有一範圍從〖.45到ι·6,最好是153,的 折射指數(η),但確可根據所採用的材料而具有較高或較低 的折射指數。或另者,可藉各種技術,包含,但不限於, 注入模造(即如插入模造)及鑄模作業,而將該透鏡料構成於 541726 A7 ---~— _______ B7 五、發明説明(1 ) -- LED封裝基座42和該LED晶片52上, 在透鏡44與LED晶片52間有一個容積54。可利用矽脂來 填滿並嵌封該容積54以防止污染該LED 52。該容積54亦可 '' 狀〜、$月工氣或某些其他氣體,或填以光學透明 性樹脂材料,包含,但不限於,樹脂、矽脂、環氧樹脂、 水或任何具有1.4到1.6範圍之折射指數而可被注入以填滿該 容積Μ的材料。該容積54内的材料可為加彩以供作為濾光 鏡’讓所有或僅部分的可見光光譜能夠通過。如係採用矽 月曰’則該矽脂可為硬式或軟式。該透鏡44也可被彩化以作 為處光鏡。 . 透鏡44包含一鋸齒狀、折射部分56及一全内反射(TIR)漏 斗型部分5 8。該折射部分5 6係經設計以折射並彎曲光線, 使得光線盡可能地以相對於該橫封裝軸43為接近90度的方 式離出該透鏡44。該一鑼#型部分56的鑛齒型或折射表面 59係皆屬透光者。可在一給定長度的鋸齒部分内採取任意 數量的鋸齒59 ;最好會至少有一個鋸齒。可按單塊,或另 以互為耦接之個別元件,來組成該透鏡44。 該漏斗型部分58被設計成一 TIR表面。TIR表面反射光線 ,使得光線盡可能地以相對於該LED封裝40的橫封裝軸43 為接近90度的方式離出該透鏡44。大約33 %從LED晶片52所 發出的光線會被反射離於該透鏡44之漏斗型部分58的TIR表 面°可於該漏斗型部分5 8的頂部上鍵置一金屬化層(即如紹 質),以防止光線傳通過該丁1R表面。可於該漏斗型部分58 的頂部上一鍵層或薄膜(U. V ·禁制器)以防止透鏡劣化’泛疋 -9 - 本紙張尺度適用中國國家標準(CNS) A4规格(2K) x 297公釐)
裝- 訂
線 541726 A7 __________B7 五、發明説明(7 ) 因為當出現紫外光時PC會劣化。 也可利用任何眾知嵌封劑’像是「室溫溶補(RTV)」等等 ’來嵌封該透鏡44與LED封裝基底42的介面。 圖5B說明另一透鏡44配接於該led封裝基底42之承體46 之載面圖。為便說明,本圖中並未繪示該LED晶片52與該 基底42的其他特性。可藉各種接附方式,包含但不限於扣 合接附、軋合接附、熱化疊置、黏劑貼著以及超音波焊接 ,將該透鏡44接附於該LED封裝基底42上。該透鏡料的特 性,即如圖5B所示,可適用於按個別元件方式組成,或是 經包封於LED封裝基底42上的透鏡。圖5C說明如圖冗之透 鏡/承體配接方式的細部圖。表面s可扣接符入該表面以。該 表面S可軋合接於該表面R。可利用各種方法,包含,但不 限於,塑膠熔接、超音波熔接及線性熔接,將該表面τ焊接 於該表面U。嵌封或黏涉及到許多可能組合,像是該透鏡44 的表面S及/或T被嵌封/黏於該承體46的表面r及/或^。 圖5 D說明一配接於一具圓形透鏡1 2之傳統式[ED封裝t 〇 的透鏡上盍55截面圖。可藉由一光學黏著劑將該透鏡上蓋 5:)固接於該LED封裝1〇的透鏡12。該透鏡上蓋55包含鋸齒 狀、折射部分56及一反射性漏斗型部分58,該等含有相同 及/或類似特性’可按與該透鏡44之折射和tIR部分56、58 相同及/或類似的方式運作,即如前文與後文所述。 圖5E、5F與5G說明通過各種曲率之透鏡的透鏡頂部表面 光線行跡。如圖5E-5G所示之特性適用於注入模造、鑄模 或其他方式所製成的透鏡。大約3 3 %從L E D晶片5 2所發出的 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公#) 541726 五、發明説明(8 圖不:該光線是從d丨e焦點F發出)會被反射離於該 ⑽表面卜圖5E說明—曲型漏斗狀部分巧,在此該表面1係 按一曲線所定義,該曲線會維持大於臨界角之角度, 但將光線按對該棒封梦* 、封夜軸)3為約9〇度而導引離於該透鏡。 明一編斗狀部分58,在此’表面I是由彎進兩個 線性部分的線段所定義’各個部分為按-大於一TIR臨界角 之角度’但將光線按對該橫封裝軸Μ為約%度而導引離於 該封裝。圖5G說明一妗卜4、P、丨, 、、泉H漏斗狀部分58,在此,表面1是由 直泉斤疋義3玄直線係按一大於一 TIR臨界角之角度,但 將光線按對,玄封裝軸為約9〇度而導引離於該封裝。 士圖飞5G裡,表面H與表面丨互同運作以發出垂直於橫 封衣轴〜的光線。表面1相對於該die所定義的角度會約為8〇 表面A B C、、D及E具有法向表面,使得入射光線會 被按對該橫封裝軸53為⑽度而折射離於該透鏡。表面F、 Η H,曰A約平仃直接入射光線,藉此將傳通於這些表面的 直射光量最小化。低於直線_表面會將光線折射離於該封 裝:高於直線_表面會經—nR及折射組合而將光線導離 於处鏡。直線M、N必須位於近距離内以將側邊發光最佳化 ’並將橫軸方向上的發光降至最低。圖5E_5G顯示兩個區 域·在對於該橫封裝軸53約45度或更多處之折射的區域, 、及在對於,亥丨頁封裝軸53最高達約45度或更多處之TIR/折 射的區域。例如在圖5E_5G裡顯示一約4〇度丁折射區域。 兩個區域間的介面會是離該橫封裝軸53為約45度。直線Μ 和直線Ν間的距離χ會被保持為最小值,藉以將來自該透鏡 11 - 本紙張尺度適用中國國家標準(CNS) Α4規格(21〇χ297公釐) 541726 A7 _______ B7 五、發明説明(9 ) 的光線之_邊#1出最佳化。直線M可等於直線n (即如χ=〇) 〇 圖6說明一從圖4之LED封裝40的發光截面圖。該LED封 衣40的透釦44可產生一概為垂直於該LED封裝橫封裝軸 66之賴射樣式62。在圖6裡,此輕射樣心2概垂直於該led 封裝轴66,並說明相對光線強度與分布狀況。這個照明範 圍62環繞於該LED封裝40,jt概為碟狀或環狀。光線是按 概平行於一光學平面64而從該透鏡44發出。 側邊發光可讓即使是單一 LED封裝4〇能夠照亮多個光導 器72,即如圖7所示。例如,圖7A說明兩個平面型光導器72 ,對至少一位在兩個光導器72之間的LED封裝4〇,以近似 端對端間隔方式置放。該LED封裝4〇的側邊光線可供光線 進入各個光導器72。該LED封裝40亦可被插置於光導器72 的本體内。在此,可採用各式形狀的光導器。沿該等光導 、杰長度的侧邊可為平面或扁尖狀。例如,單側邊發光LEO 封裝40可被放在一碟狀光導器的中央處(未以圖示)。當光線 被從泫LED封裝40的側邊以360度發出時(即如從該led封裝 4〇中央的所有方向),光線會進入光導器,並在整個光導器 内折射與反射(未以圖示)。
泫光導為可為按光通性材料製作,包含,但不限於,PC 或PMMA。光導器可為固定厚度或扁尖狀。侧邊發光可提 供具最佳範圍2到8 mm厚度之薄型光導器有效的照明。圖 7B說明一光導器73範例,其厚度為5 〇 mm,這是大於透鏡 44的尚度=由於光導器73的厚度大於透鏡料的高度,因此 -12 - 各紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 541726 A7 B7 五、發明説明(1Q ) 可在該光導器73中運用一暗孔94以供耦接該LED封裝40。 可從透鏡44的焦點F來測量圖7 B、7C及7 D之透鏡44的維度 。圖7C說明一光導器75的範例,其厚度為4.5 mm,等於該 透鏡44的高度。由於光導器75的厚度等於透鏡44的高度’ 因此可在該光導器75中運用一透孔96以供耦接於該LED封 裝40。圖7D說明圖4之LED的側邊發光,照入薄於該透鏡44 的高度之光導器77。由於光導器77的厚度少於透鏡44的高 度,因此必須在該光導器77中運用一透孔96以供耦接於該 LED封裝40。即使是該光導器77薄於該透鏡44的高度,大 部分從該LED晶片52發出的光線仍會被導向進入該光導器 77,因為多數從該LED晶片52發出的光線是從該透鏡44的 側邊所發出。從該透鏡44所發出的光線會朝向置放在該透 鏡A度一半上部處的光導器77。例如,透鏡44側邊靠近其 〜頂部向外發出的光線會被導向略為向下,而透鏡44側邊靠 近其底部向外發出的光線會被導向略為向上。被導向該光 導為77内之光線的部分會隨著該光導器77相對於透鏡44的 厚度減少而降低。該光導器77可為任何形狀,其中包含, 但不限於,直線、扁尖形、長方形、圓形或方形。 圖8說明一平面型光導器82端點部分之外覲圖。該側邊發 光LED封裝40可讓LED封裝40放在該光導器82的内側。在該 光導器82的本體上鑽製有一或更多孔洞86,而相對應數量 的LED組裝置40放在該等孔洞86内。可將該等孔洞86製作 -13- 木紙張尺度適用中國國家標旱(C MS) A4規格(210 X 297公赞)
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線 541726 A7 _ B7_ 五、發明説明(11 ) " 為在該光導器8 2裡任意深度,包含但不限於該光導器8 2的 整個4度1枝L E Q封装4 0的透鏡4 4或不會觸碰到該光導器 82。可於該光導器82的至少一端點上置以一反射性鍵層或 薄膜8 4,以提高該光導器8 2的内部照明。 圖9A說明經架置於一平面型光導器82之暗孔94内的側邊 發光LED封裝40。該暗孔94的頂部表面9 1大致與該平面型 光導器82的頂部表面95平行。該暗孔94的頂部表面9 1可經 鍍以一反射性鍍層或薄膜以反射光線,藉此可讓較薄的光 導器封裝具類似的耦接效益性。 圖9B說明經架置於一平面型光導器82之漏斗型暗孔外内 的侧邊發光LED封裝40。該漏斗型暗孔98的頂部表面93大 致與遠LED封裝40之透鏡44的漏斗型部分5 8平行。該漏斗 型暗孔98的頂部表面93可經鍍層以反射光線,藉此可讓較 、薄的光導為封裝具類似的_接效益性。該暗孔可具有平坦 、漏斗或曲型表面,以利於將從LED所發出進入光導器内 的光線重新導向。 圖9C說明經架置;/;、一平面型光導器82之〃型暗孔97内的側 邊發光LED封裝40。該暗孔97的v型頂部表面99大致與該 LED封裝40之透鏡44的漏斗型部分58平行。該暗孔可具有 平坦、漏斗或曲型表面,以利於將從LED所發出進入光導 器内的光線重新導向。該v型暗孔97的頂部表面99可經鍍層 以反射光線,藉此可讓較薄的光導器封裝具類似的耦接效 -14 - 本紙張尺度適用中國國家標準(CNS)鼻4規格(210 X 297公聲)
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541726 A7 _______B7 五、發明説明(13 ) 賤鍍等’這些材料包含,但不限於,鋁質(A L )和絡化鎳 (NiCr)。比起傳統式LED/深型反射器組合,本惻邊發光LED 確可藉深型或淺型反射器來達到較高的集光效益性。 上逃之本發明具體實施例僅屬說明性而非具限制性。故 對於熟諳本項技蟄之人士,應可知悉可對此進行各種變化 及改,而然虞悖離本發明之廣義特點。從而,後載申請 專利範圍涵蓋所有該等變化與修飾,因確落屬本發明精神 及範圍。 -16 -

Claims (1)

  1. 541726 Λ8 Β8 C8 〇8
    申清專利祀圍 一種發光裝置,其中包含: -發光二極體封裝,該封裝具有一前端表面和一後端 表面疏封裝包含一發光二極體叫共以至少於一近似法 向垂直於前端表面的第一方向上發射光線而離出該封裝 ;以及 一透鏡,該透鏡延伸離於該封裝前端表面以接收來自 於該二極體的光線,該透鏡的形狀係為將從該二極體所 收到的光線,包含在該第一方向上的光線,予以重新導 向以使彳之该透鏡來的大部分光線會概為平行於該封裝前 端表面。 2. 如申明專利範圍第1項之裝置,其中該透鏡係經鑽石轉 磨。 3. 如中請專利範圍第W之裝置,其中該透鏡係經注入模 造。 、 4. 5. 如申請專利範固第1項之裝置 如申請專利範圍第1項之裝置 製成。 如申請專利範圍第5項之裝置 如申請專利範圍第1項之裝置 光二極體封裝。 如申請專利範圍第1項之裝置 (snap-fk)於該發光二極體封裝 如申請專利範圍第1項之裝置 極體封裝。 其中該透鏡係經鑄模。 其中该透鏡係由透明材料 其中該透鏡係經彩化。 其中該透鏡係經黏於該發其_該透鏡係⑼合配接 其中該透鏡包封該發光二 -17 -
    本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) Λ 8 Β8 C8 、、申請專利範固 1〇,如申請專利範圍第!項 於該發光二極體封裝。 11 ·如申請專利範圍第1項壯 接於該發光二極體封壯之衣置’其中該透鏡係經超音波焊 12.;:=利範圍第二裝置… ,处1.4)到1.6的折射指數。 ^.如申請專利範圍第 1.53的折射指數。-、之裝置’其中該透鏡具有-约為 14. 如申請專利範圍第丨項 中所選定之材料所制中“透鏡係由如下群組 及 c〇c。 衣成:PC、PMMA、PEI、pc/pMMA 15. 如申請專利範圍第1項 之裝置,其中該透 鏡係經熱化疊置 該透鏡具有一範圍約 一折射部分;及 ^ 反射部分。 之裝置,其中該透鏡進一步包含: 16.如申請專利範圍第15項之裝置,其中該折射部分 包含: 進一步 "锯齒狀透鏡部分,藉此在光線進人該錄齒狀透鏡部 分後’該鋸齒狀透鏡部分會折射該光線,以使得大部分 從該鋸齒狀透鏡部分所發出的光線會概為平行於該封裝 的前端表面。 Π.如申請專利範圍第15項之裝置,其中該反射部分進一步 包含: ^ 一漏斗型透鏡部分,藉此在光線進入該漏斗型透鏡部 分後,該漏斗型透鏡部分會反射該光線,以使大部分從 -18 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公:t) M1726 Λ 8
    2漏斗型透綠 > 所發出的光線 前端表面。 勺卞仃t忒封较白 18’如申請專利範圍第17項之裝置,其" :的反射表面會曲離近似於該封裝之:端 方向。 …37而表面的苐一 ί9.:申請專利範圍第17項之裝置’" 的反射表面包含至少兩個互相交角的;透: 似法向於該封裝之前端表面的第-方向。及Μ
    装 2。範圍第17項之裝置,#中該漏斗型透鏡部分 二W /、近似法向於該封裝之前端表面的第一方向 相父角。 21. 如申請專利範圍第15項之裝置,其中該折射部分進一步 包含一鋸齒狀透鏡部分;且該反射部分進一步包含一漏 斗3L透鏡σ卩分,藉此該鋸齒狀及漏斗型透鏡各者導向光 、·泉使得在光線進入該鋸齒狀及漏斗型透鏡部份後,從 該鋸齒狀及漏斗型透鏡部份各者所發出的大部份光線會 概為平行於該封裝之前端表面。
    22. 如申凊專利範圍f 1項之裝置,其中在該發光二極體與該 透鏡之間具有一嵌封空間。 2 j .如申請專利範圍第1項之裝置,其中在該發光二極體與該 透鏡之間具有一經填封以樹脂的嵌封空間。 24.如申請專利範圍第23項之裝置,其中該樹脂係透光性 者。 25如申請專利範圍第23項之裝置,其中該樹脂係矽脂。 -19 - 本紙浪尺度通州中國國家標準iCNS) A‘丨規格(210X297公釐) C8 D8 申請專利範圍 〜6.如申請專利範圍第1項之裝置,其中進一步包含在該發光 —極體與該透鏡之間具有/經填封以環氧樹脂的嵌封空 間。 ,7 17 .如申凊專利範圍第1項之裝置,其中在該發光二極體與該 透鏡之間具有一經填封以透光性材料的嵌封空間。 一 · °曱請專利範圍第1項之裝置,其中在該發光二極體與該 透鏡間’具有一經填封以具折射指數約1.4到1.6範圍之 材料的嵌封空間。 一9.如申凊專利範圍第1項之裝置,其中進一步包含: 一光導器’在此從透鏡發出的光線會進入該光導器。 J〇.如申請專利範圍第29項之裝置,其中該透鏡係沿該光導 器週邊上而架置。 3 1.如申請專利範圍第29項之裝置,其中該透鏡架置於該光 導态中至少一個孔洞内。 j2·如申請專利範圍第3 1項之裝置,其中該孔洞進一步包含 一概為平行於該透鏡之第一表面的内部表面。 3 3 ·如申請專利範圍第3 2項之裝置,其中該内部表面係線 性。 34.如申請專利範圍第32項之裝置,其中該内部表面係漏斗 形狀。 、 3 5.如申請專利範圍第32項之裝置,其中該内部表面係v 形。 3 6.如申請專利範圍第29項之裝置,其中該光導器係由一含 有PC及PM Μ A之群組所選出的材料所製作。 -20 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) ^1726 Λ8 B8 ____ C8 、申 ^----^一 J7.如申請專利範圍第29項之裝置,其中該光導器厚度範圍 為從約2到8 mm。 8 ·如申請專利範圍第29項之裝置,其中該光導器具有一大 於該透鏡長度之厚度。 〇9.如申請專利範圍第29項之裝置,其中該光導器具有一小 於该透鏡長度之厚度。 4〇.如申請專利範圍第29項之裝置,其中該光導器具有一至 J等於該透鏡長度之厚度。 4 1 ·如申請專利範圍第3 1項之裝置,其中該光導器内的孔洞 具有一約等於該透鏡長度之深度。 42. 如申請專利範圍第3 1項之裝置,其中該光導器内的孔洞 具有一淺於該透鏡長度之深度。 43. 如申請專利範圍箏31項之裝置,其中該光導器内的孔洞 具有一深於該透鏡長度之深度。 44. 如申請專利範圍第29項之裝置,其中該發光二極體位在 该光導器的中央處。 45. 如申請專利範圍第29項之裝置,其中會對該光導器施予 表面完成處理,而該表面完成可反射光線。 4 6.如申凊專利範圍第2 9項之裝置,其中會對或光導器施予 表面鍍層處理,而該表面鍍層可反射光線。 47. 如申請專利範圍第丨項之裝置,進一步包含: 一反射器,經架置於發光二極體封裝,藉此從該透鏡 所發出的光線會被該反射器所重新導向至一所欲目標。 48. 如申請專利範圍第47項之裝置,其中該所欲目標係位在
    本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 541726 Λ 8 Β8 C8 ______ D8
    申請專利範圍 近似法向於該前端表面而離於該封裝的第方向上° 49.如申請專利範圍第47項之裝置,其中該發光二極體封裝 係被架置於該反射器中至少一個孔洞内。 5〇.如申請專利範圍第47項之裝置,其中該反射器的高度會 小於等於該透鏡的長度。 5 1.如申請專利範圍y47項之裝置’其中該反射器的高度會 大於等於該透鏡的長度。 52. 如申請專利範圍第47項之裝置,其中該反射器的高度會 近似等於該透鏡的長度。 53. 如申請專利範圍第47項之裝置,其中會對該反射器施予 一反射器鍍層。 54·如申請專利範圍第之裝置,其令該透鏡進一步包含: 一鑛齒狀透鏡部分’藉此在光線進入該鋸齒狀透鏡部 份後該鋸齒狀透鏡部份會折射光線,而使得從該鋸齒狀 透鏡部份所發出的大部份光線會概為平行於該封裝之, 端表面;以及 一漏斗型透鏡部分’藉此在光線進入該漏斗型透鏡部 份後該漏斗型透鏡部份會反射光線,而使得從該漏斗型 透鏡部份所發出的大部份光線會概為平行於該封壯之、, 端表面。 55. 如申請專利範圍第54項之裝置,其中該漏斗型透鏡部八 反射表面會曲離於近似法向於該封裝之前端表 μ刀 义向的第一 方向。 56. 如申請專利範圍第54項之裝置,其中該漏 「上达鏡部分 -22-
    的反射表面包含至少兩ί固互相A -似法向於該封裝之前端表面的第人」的線性部分,以及近 )7.如申請專利範圍第54項之裝置 方向。 係一直線,此者與近似法向於其中該漏斗型透鏡部分 方向互相交角。 X封I之前端表面的第一 58.如申請專利範圍第1項之裝置,其^ 5 9.如申請專利範圍第1項之裝置复σ亥透鏡係經彩化。 二極體與該透鏡.間的嵌^空=中進—步包含在該發光 封以透明材料。 二3 ,而該嵌封空間係經填 60.如申請專利範圍第59項之妒 化。 、其令該透明材料係經彩 丨.如申請專利範圍第;1項之裝置,苴中 、一 透鏡朝向法向於該封裝之前端表面發汽 出热光線從該 62. -種自一發光二極體發射光線的方法包含. 從-發光二極體封裝產生一光線輸出,該封裝 知表面和一後端表面,並含 、月〗 你一 . ^ ^先一極體’供以至少 於一近似法向垂直於前端表 離出該封裝’·以及 Μ上發射光線而 ,利用-透鏡將從該二極體所收到的光線重新導向,此 透鏡延伸離於該封裝前端表面,以接收來自於該二極體 的兀線’包含在該第一方向上的光線’在此該透鏡會將 光線重新導向’使得從該透鏡來的大部分光線會概為平 行於該封裝前端表面。 63·如申請專利範圍第62項之方法,進一步包含: -23 - 本紙張尺度適用中國國家標準(CMS) A^iT^297公f 541726 A8 B8 C8
    二絲齒狀透鏡部分折射光線,其㈣狀部分會折 射光線’以使得大部分從該鑛齒狀部分所發出的光線會 概為平订於該封裝的前端表面。 64. 65. 如申請專利範圍第62項之方法,進—步包含: 經由該漏斗型透鏡部分反射光線,U斗型部分會反 射光線,以使得大部分從該漏斗型部分所發出的光線會 概為平行於該封裝的前端表面。 如申請專利範圍第62項之方法,進一步包含: 經由該鋸齒狀透鏡部分折射光線’其鑛s齒狀部分會折 射光線,以使得大部分從該鋸齒狀部分所發出的光線會 概為平行於該封裝的前端表面;以及 經由該漏斗型透鏡部分反射光線,其漏斗型部分會反 射光線,以使得大部分從該漏斗型部分所發出的光線會 概為平行於該封裝的前端表面。 -24- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)
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