JP5833581B2 - 散乱光子抽出に基づく照明器具 - Google Patents
散乱光子抽出に基づく照明器具 Download PDFInfo
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- 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
- F21K9/64—Optical 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
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- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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- 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
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- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
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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
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- F21V7/0008—Reflectors for light sources providing for indirect lighting
- F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
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- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
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- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
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- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
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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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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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
- 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
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- 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
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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
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
- F21V7/0033—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
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- F21—LIGHTING
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Description
本出願は、2010年11月17日付けで出願された米国特許出願シリアル番号12/947,899の継続出願である。米国特許出願シリアル番号12/947,899は2006年12月20日付けで出願された米国特許出願シリアル番号11/642,089の継続出願であり、米国特許出願シリアル番号11/642,089は“High Efficiency Light Source Using Solid-State Emitter And Down-Conversion Material”と題する2007年4月23日付けで出願された米国特許出願シリアル番号10/583,105(現在米国特許第7,819,549号)の部分継続出願であり、米国特許出願シリアル番号10/583,105は2005年5月5日付けで出願された国際出願第PCT/US2005/015736号の371国際段階であり、国際出願第PCT/US2005/015736号は、2004年5月5日付けで出願された米国仮特許出願シリアル番号60/568,373及び2004年12月15日付けで出願された米国仮特許出願シリアル番頭60/636,123号の優先権を主張する。本出願はまた、2010年3月11日付けで出願された米国仮特許出願第61/339,958号の優先権を主張する。これらの出願の全ての開示内容は参照によって本明細書の一部を構成する。
本発明の少なくとも1つの実施態様において、SPE技術によるLEDパッケージが実施される。下方変換燐光体が光源又はダイの周りに広がっている典型的なコンベンショナルな白色LEDパッケージとは異なり、本発明のSPEパッケージの場合、燐光体層がダイから離されており、ダイと燐光体との間に透明な媒質を残す。このようなパッケージのための効率的な幾何学的形状を、光線追跡分析を介して割り出すことができる。注目に値するのは、SPEパッケージが、コンベンショナルな白色LEDパッケージと類似する色度座標を有する白色光を生成するために、異なる燐光体密度を必要とすることである。この差異は、SPEパッケージが非類似のスペクトルを有する透過光と後方反射光とを混合するのに対して、コンベンショナルなパッケージが主として透過光を使用する結果である。
Claims (17)
- 散乱光子抽出照明器具であって、
第1表面と、該第1表面から延びる少なくとも1つのほぼ透明な側壁とを有している光学素子と、
短波長放射を発するための光源であって、前記光学素子の第1表面に対向する、前記少なくとも1つのほぼ透明な側壁の端部に配置された光源と、
前記光源によって発せられた前記短波長放射のうちの少なくともいくらかを受容して下方変換し且つ該受容されて下方変換された放射の一部を後方伝送するために、前記光学素子の第1表面上であって前記光源の下方に配置された波長変換材料と、
前記少なくとも1つのほぼ透明な側壁を通して前記光学素子から抽出された前記放射のいくらかを反射させるために、前記波長変換材料及び光源の上方に位置決めされたリフレクタと
を備え、
前記少なくとも1つのほぼ透明な側壁が、前記第1表面に1つの端部で結合され且つ前記光源に別の端部で結合されており、且つ、前記波長変換材料から後方伝送された放射を当該照明器具の外側に出すように構成され、
前記リフレクタは、前記波長変換材料から後方伝送された放射のいくらかが該リフレクタに当たることなしに当該散乱光子抽出照明器具から出るように構成されている、散乱光子抽出照明器具。 - さらに、前記少なくとも1つのほぼ透明な側壁上に配置された波長変換材料を含む、請求項1に記載の照明器具。
- さらに、前記光源に取り付けられ又は該光源に隣接するヒートシンクを含む、請求項1に記載の照明器具。
- 前記ヒートシンクは1つの側で前記少なくとも1つのほぼ透明な側壁に取り付けられ且つ別の側で前記リフレクタに取り付けられている、請求項3に記載の照明器具。
- 当該照明器具が押し出し型発光器具又は回転型発光器具である、請求項1に記載の照明器具。
- さらに、1つ以上の吊り下げ機構を含む、請求項1に記載の照明器具。
- 前記光源が少なくとも1つの半導体発光ダイオードを含んでいる、請求項1に記載の照明器具。
- 前記光源が、発光ダイオード(LED)、レーザーダイオード(LD)、又は共振空洞発光ダイオード(RCLED)のうちの1つを含む半導体発光ダイオードである、請求項1に記載の照明器具。
- 前記光源が2つ以上の発光ダイオード(LED)のアレイである、請求項1に記載の照明器具。
- 前記波長変換材料は、燐光体、量子ドット、量子ドット結晶、及び量子ドット・ナノ粒子から成る群から選択される、請求項1に記載の照明器具。
- 前記光学素子は、球形、パラボラ形、円錐形、及び楕円形から成る群からの三次元形状、及び/又は三角形、六角形、台形、半円形、及び半楕円形から成る群からの断面形状を有している、請求項1に記載の照明器具。
- 前記光学素子は、空気、ガラス、及びアクリルから成る群からのほぼ透明な光透過性の媒質である、請求項1に記載の照明器具。
- 前記リフレクタは、球形、パラボラ形、円錐形、及び楕円形から成る群から選択された幾何学的形状を有している、請求項1に記載の照明器具。
- 複数の発光器具を含む散乱光子抽出照明システムであって、
複数の発光器具の各々が、
第1表面と、該第1表面から延びる少なくとも1つのほぼ透明な側壁とを有している光学素子と、
短波長放射を発するための光源であって、前記光学素子の第1表面に対向する、前記少なくとも1つのほぼ透明な側壁の端部に配置された光源と、
前記光源によって発せられた前記短波長放射のうちのいくらかを受容して下方変換し且つ該受容されて下方変換された放射の一部を後方伝送するために、前記光学素子の第1表面上であって前記光源の下方に配置された波長変換材料と、
前記少なくとも1つのほぼ透明な側壁を通して前記光学素子から抽出された前記放射のいくらかを反射させるために、前記波長変換材料及び光源の上方に位置決めされたリフレクタと
を備え、
前記少なくとも1つのほぼ透明な側壁が、前記波長変換材料を含有する前記第1表面に1つの端部で結合され且つ前記光源に別の端部で結合されており、且つ、前記波長変換材料から後方伝送された放射を前記発光器具の外側に出すように構成され、
前記リフレクタは、前記波長変換材料から後方伝送された放射のいくらかが該リフレクタに当たることなしに前記発光器具から出るように構成されている、散乱光子抽出照明システム。 - 前記複数の発光器具の各々が、さらに、前記光源に取り付けられ又は該光源に隣接するヒートシンクを含む、請求項14に記載の照明システム。
- 前記複数の発光器具の各々において、前記ヒートシンクは1つの側で前記少なくとも1つのほぼ透明な側壁に取り付けられ且つ別の側で前記リフレクタに取り付けられている、請求項15に記載の照明システム。
- 前記複数の発光器具が同じ構造的形態又は異なる構造的形態で構成されている、請求項14に記載の照明システム。
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