JP6681581B2 - 発光装置、及び、照明装置 - Google Patents
発光装置、及び、照明装置 Download PDFInfo
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-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
- F21K9/00—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
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
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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
- F21V7/04—Optical design
- F21V7/041—Optical design with conical or pyramidal surface
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2113/00—Combination of light sources
- F21Y2113/10—Combination of light sources of different colours
- F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
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- F21—LIGHTING
- F21Y—INDEXING 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
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- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
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- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L33/48—Semiconductor devices having potential barriers 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers 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
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
[発光装置の構成]
まず、実施の形態1に係る発光装置の構成について図面を用いて説明する。図1は、実施の形態1に係る発光装置の外観斜視図である。図2は、実施の形態1に係る発光装置の平面図である。図3は、実施の形態1に係る発光装置の内部構造を示す平面図である。図4は、図2のIV−IV線における模式断面図である。なお、上記の図3は、図2において封止部材13を取り除き、LEDチップの配列及び配線パターンなどの内部の構造を示した平面図である。
発光装置10は、赤色の再現性を高めるために、赤色LEDチップ12r及び赤色蛍光体14rの両方を備えていることが特徴である。以下、このような発光装置10が発する白色光の発光スペクトルについて、比較例を参照しながら説明する。図5は、発光装置10の発光スペクトルを示す図である。図6は、比較例に係る発光装置の発光スペクトルを示す図である。
Yb(relative luminance of background:背景の相対輝度)=20
F(Factor determining degree of adaptation:適応度を決定する要因)=1.0
c(Impact of Surrounding:周囲の影響)=0.69
Nc(chromatic induction factor:色誘導因子)=1.0
上記実施の形態1で説明した発光装置10は、一例であり、本発明は、このような発光装置10のような態様に限定されない。例えば、上記実施の形態1では、封止部材13は、複数のLEDチップを発光素子列ごとにライン状に封止したが、封止部材13は、基板11上に設けられたすべてのLEDチップを一括して封止してもよい。図10は、基板11上に設けられたすべてのLEDチップを一括して封止する発光装置の外観斜視図である。なお、以下の変形例の説明においては、上記実施の形態1と異なる点を中心に説明が行われ、既に説明された事項については詳細な説明が省略される場合がある。
以上説明したように、発光装置10は、発光ピーク波長が430nm以上470nm以下の青色LEDチップ12bと、発光ピーク波長が600nm以上640nm以下の赤色LEDチップ12rとを備える。青色LEDチップ12bは、第一発光素子の一例であり、赤色LEDチップ12rは、第二発光素子の一例である。
次に、実施の形態2に係る照明装置200について、図11及び図12を用いて説明する。図11は、実施の形態2に係る照明装置200の断面図である。図12は、実施の形態2に係る照明装置200及びその周辺部材の外観斜視図である。
以上、実施の形態に係る発光装置、及び、照明装置について説明したが、本発明は、上記実施の形態に限定されるものではない。
12b 青色LEDチップ(第一発光素子)
12r 赤色LEDチップ(第二発光素子)
13、13a 封止部材(透光性樹脂)
14r 赤色蛍光体(第二蛍光体)
14y 黄色蛍光体(第一蛍光体)
200 照明装置
250 点灯装置
Claims (6)
- 発光ピーク波長が430nm以上470nm以下の第一発光素子と、
発光ピーク波長が600nm以上640nm以下の第二発光素子と、
前記第一発光素子が発する光で励起されて発光ピーク波長が500nm以上580nm以下の光を発する第一蛍光体と、
前記第一発光素子が発する光で励起されて発光ピーク波長が640nm以上670nm以下の光を発する第二蛍光体とを備え、
前記第一発光素子、前記第二発光素子、前記第一蛍光体、及び、前記第二蛍光体のそれぞれが発する光が混ざることにより白色光を発し、
前記白色光は、色温度が2000K以上3500K以下であり、色度偏差Duvが−10よりも小さく、かつ、−25よりも大きく、
特殊演色評価数R9の試験色に前記白色光が照射されたときの赤色の見え方を示すカラフルネスは、44よりも大きく、かつ、50よりも小さく、
前記カラフルネスは、色の見えモデルCIECAM02を用いて算出される、CAM02−UCS(Uniform Color Space)上における、前記試験色の色度の原点からの距離を示す
発光装置。 - 前記第二蛍光体は、窒化物からなる蛍光体である
請求項1に記載の発光装置。 - 前記白色光の発光スペクトルにおいて、波長680nmにおける発光強度は、前記第二発光素子の発光ピーク波長における発光強度の10%以上である
請求項1または2に記載の発光装置。 - 前記第一発光素子及び前記第二発光素子は、直列接続されている
請求項1〜3のいずれか1項に記載の発光装置。 - 前記第一発光素子及び前記第二発光素子は、前記第一蛍光体及び前記第二蛍光体を含む透光性樹脂によって一括封止されている
請求項1〜4のいずれか1項に記載の発光装置。 - 請求項1〜5のいずれか1項に記載の発光装置と、
前記発光装置に、当該発光装置を点灯させるための電力を供給する点灯装置とを備える
照明装置。
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JP2015249057A JP6681581B2 (ja) | 2015-12-21 | 2015-12-21 | 発光装置、及び、照明装置 |
US15/384,857 US10168007B2 (en) | 2015-12-21 | 2016-12-20 | Light-emitting device and illuminating apparatus |
DE102016125009.0A DE102016125009A1 (de) | 2015-12-21 | 2016-12-20 | Lichtemittierende Vorrichtung und Beleuchtungsvorrichtung |
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JP2017117853A5 JP2017117853A5 (ja) | 2018-11-08 |
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JPWO2018230247A1 (ja) | 2017-06-15 | 2020-05-21 | 住友電気工業株式会社 | 固体電解質部材、固体酸化物型燃料電池、水電解装置、水素ポンプ及び固体電解質部材の製造方法 |
TWI751526B (zh) * | 2020-04-09 | 2022-01-01 | 晟美光電有限公司 | 深紫外線led模組構造 |
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TW383508B (en) * | 1996-07-29 | 2000-03-01 | Nichia Kagaku Kogyo Kk | Light emitting device and display |
US7095056B2 (en) * | 2003-12-10 | 2006-08-22 | Sensor Electronic Technology, Inc. | White light emitting device and method |
JP2011146640A (ja) | 2010-01-18 | 2011-07-28 | Fujikom Corp | Led光源 |
WO2012053134A1 (ja) * | 2010-10-22 | 2012-04-26 | パナソニック株式会社 | 実装用基板、発光装置及びランプ |
US8791642B2 (en) * | 2011-03-03 | 2014-07-29 | Cree, Inc. | Semiconductor light emitting devices having selectable and/or adjustable color points and related methods |
JP6358457B2 (ja) * | 2014-01-20 | 2018-07-18 | パナソニックIpマネジメント株式会社 | 発光装置、照明用光源及び照明装置 |
US9215761B2 (en) * | 2014-05-15 | 2015-12-15 | Cree, Inc. | Solid state lighting devices with color point non-coincident with blackbody locus |
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2015
- 2015-12-21 JP JP2015249057A patent/JP6681581B2/ja active Active
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2016
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US10168007B2 (en) | 2019-01-01 |
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JP2017117853A (ja) | 2017-06-29 |
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