JP7171972B2 - 発光装置 - Google Patents
発光装置 Download PDFInfo
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- JP7171972B2 JP7171972B2 JP2022532545A JP2022532545A JP7171972B2 JP 7171972 B2 JP7171972 B2 JP 7171972B2 JP 2022532545 A JP2022532545 A JP 2022532545A JP 2022532545 A JP2022532545 A JP 2022532545A JP 7171972 B2 JP7171972 B2 JP 7171972B2
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- 229910052693 Europium Inorganic materials 0.000 description 18
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- 238000007711 solidification Methods 0.000 description 12
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- -1 selenium-activated YAG Chemical class 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 10
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- 229920001296 polysiloxane Polymers 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 7
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- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
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- 235000012239 silicon dioxide Nutrition 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
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- FNWBQFMGIFLWII-UHFFFAOYSA-N strontium aluminate Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Sr+2].[Sr+2] FNWBQFMGIFLWII-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- 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
-
- 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
-
- 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
- H01L33/50—Wavelength conversion elements
-
- 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
- H01L33/52—Encapsulations
-
- 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
- H01L33/58—Optical field-shaping elements
-
- 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
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
- F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
- F21Y2105/18—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
-
- 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
-
- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Led Device Packages (AREA)
Description
Claims (20)
- 第1領域と前記第1領域の周辺に配置された第2領域を有する基板と、
前記第2領域において、前記第1領域を囲むように前記基板上に実装され、前記第1領域において、前記基板上に実装されない複数の発光素子と、
前記複数の発光素子を覆うように前記基板上に配置された封止材と、
前記封止材の上側、及び、前記第1領域側とは反対側、に配置された反射材と、
上面を有し、前記封止材の前記第1領域側の側面に対向して、前記第1領域に配置された導光材と、を有し、
前記封止材は、前記複数の発光素子から出射された光を波長変換して異なる波長の光として出射する蛍光材を含有し、
前記反射材及び前記導光材は、前記蛍光材を含有しない、
ことを特徴とする発光装置。 - 前記封止材は、前記複数の発光素子から出射された光を波長変換して、前記複数の発光素子から出射された第1波長の光と異なる第2波長の光として出射する第1蛍光材を含有する第1封止材、及び、前記複数の発光素子から出射された光を波長変換して、前記複数の発光素子から出射された前記第1波長の光と異なる第3波長の光として出射する第2蛍光材を含有する第2封止材、を含み、
前記第1封止材及び前記第2封止材のそれぞれは、前記複数の発光素子の何れかを封止する、請求項1に記載の発光装置。 - 前記複数の発光素子は、前記導光材の外縁部に近接して配置された第1群の発光素子、及び、前記第1群の発光素子の前記第1領域側とは反対側に配置された第2群の発光素子、を含み、
前記第1封止材は前記第1群の発光素子を封止し、前記第2封止材は前記第2群の発光素子を封止する、請求項2に記載の発光装置。 - 前記第1封止材は、前記複数の発光素子の全てを封止し、
前記第2封止材は、前記複数の発光素子の一部のみを封止する、請求項2又は3に記載の発光装置。 - 前記封止材は、蛍光材を含まない第3封止材を更に含み、
前記第3封止材は、前記第1封止材、前記第2封止材、又は、前記複数の発光素子の内前記第1封止材及び前記第2封止材によって封止されていない発光素子を封止する、請求項2~4の何れか一項に記載の発光装置。 - 前記第1領域は、円形又は多角形状を有し、
前記導光材の前記上面は、前記第1領域と同じ外形を有し、
前記複数の発光素子は、前記導光材の外縁部に沿って配置される、請求項1~5の何れか一項に記載の発光装置。 - 前記基板は矩形形状を有し、
前記複数の発光素子の一部は、前記基板の長手方向に沿ってライン状に配置される、請求項1~5の何れか一項に記載の発光装置。 - 前記導光材の前記基板表面からの高さは、前記導光材の中央部から外縁部に向かって、徐々に低くなるように設定されている、請求項1~7の何れか一項に記載の発光装置。
- 前記導光材の前記上面は、ディンプル加工される、請求項1~8の何れか一項に記載の発光装置。
- 前記導光材の前記上面の上方に配置され、前記導光材よりも屈折率が低い低屈折率層を更に有する、請求項9に記載の発光装置。
- 前記導光材の前記上面の表面には、ドット状の樹脂が配置されている、請求項1~10の何れか一項に記載の発光装置。
- 前記基板を上方から平面視したときに、前記反射材は前記封止材を遮蔽するように配置される、請求項1~11の何れか一項に記載の発光装置。
- 前記反射材は、前記封止材の外縁部に沿って配置された枠部材と、前記封止材の上方に配置された遮蔽部材を含み、
前記枠部材の前記基板表面からの高さは、前記導光材の前記基板表面からの高さより高くなるように設定されている、請求項1~12の何れか一項に記載の発光装置。 - 前記反射材は、予め成形された樹脂部材である、請求項1~13の何れか一項に記載の発光装置。
- 前記導光材の前記上面の上方に配置され、前記上面から出射された光を拡散する拡散材を含有し且つ蛍光材を含有しない拡散層を更に有する、請求項1~14の何れか一項に記載の発光装置。
- 前記拡散層の中央部の厚さは、前記拡散層の外縁部の厚さより薄い、請求項15に記載の発光装置。
- 前記拡散層表面の前記基板表面からの高さは、前記拡散層の中央部から外縁部に向かって、徐々に高くなるように設定される、請求項15又は16に記載の発光装置。
- 前記基板上に配置され、前記複数の発光素子と電気的に接続される電極及び開口部を有する回路基板を更に有し、
前記複数の発光素子は、前記開口部の内側で前記基板上に実装される、請求項1~17の何れか一項に記載の発光装置。 - 前記第1領域において、前記基板の表面はシボ加工されている、請求項1~18の何れか一項に記載の発光装置。
- 前記第1領域において、前記基板の表面には、前記封止材から出射された光を反射する突起物が配置されている、請求項1~18の何れか一項に記載の発光装置。
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JP2021069950 | 2021-04-16 | ||
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PCT/JP2021/024013 WO2021261567A1 (ja) | 2020-06-25 | 2021-06-24 | 発光装置 |
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JPWO2021261567A5 JPWO2021261567A5 (ja) | 2022-09-27 |
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JPH03261988A (ja) * | 1990-03-12 | 1991-11-21 | Sumitomo Chem Co Ltd | 面状発光体 |
JP5776599B2 (ja) * | 2012-03-26 | 2015-09-09 | 東芝ライテック株式会社 | 発光モジュール及び照明装置 |
JP7178820B2 (ja) * | 2018-08-09 | 2022-11-28 | シチズン時計株式会社 | Led発光装置 |
JP2020088051A (ja) * | 2018-11-20 | 2020-06-04 | シチズン電子株式会社 | 発光装置 |
JP7492119B2 (ja) * | 2020-03-31 | 2024-05-29 | 日亜化学工業株式会社 | 発光装置 |
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Patent Citations (8)
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JP2006214888A (ja) | 2005-02-03 | 2006-08-17 | Ccs Inc | 光照射装置 |
JP2010277851A (ja) | 2009-05-28 | 2010-12-09 | Seiko Instruments Inc | 照明装置及びこれを用いた表示装置 |
JP2013178946A (ja) | 2012-02-28 | 2013-09-09 | Panasonic Corp | 照明器具 |
WO2016194404A1 (ja) | 2015-05-29 | 2016-12-08 | シチズン電子株式会社 | 発光装置およびその製造方法 |
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JP2019087600A (ja) | 2017-11-06 | 2019-06-06 | シチズン電子株式会社 | 側面照射型led発光装置 |
JP2020021640A (ja) | 2018-08-01 | 2020-02-06 | ミネベアミツミ株式会社 | 面状照明装置 |
JP2021082655A (ja) | 2019-11-15 | 2021-05-27 | 日亜化学工業株式会社 | 発光装置および発光装置の製造方法 |
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