JP5261742B1 - 発光装置の製造方法及び発光装置の色度調整方法 - Google Patents
発光装置の製造方法及び発光装置の色度調整方法 Download PDFInfo
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Abstract
【解決手段】発光装置10は、青色を発するLED素子13と、赤色及び緑色の蛍光を発する蛍光体16と、を備える白色LED発光装置である。LED素子13は、蛍光体16が分散する封止樹脂15によって封止されている。その周囲は透明樹脂17によって封止されており、砲弾型の形状を有する。透明樹脂17の表面上には、透光性を有するとともに、混合光のうち青色の成分の一部を反射する透明膜18が形成されている。
【選択図】図1
Description
発光素子を塔載する塔載工程と、
前記発光素子からの光によって励起され蛍光を発する蛍光体を備える工程と、
透光部材で前記発光素子を封止する封止工程と、
前記発光素子に発光させ、前記蛍光との混合光の色度を測定する測定工程と、
所定の合格色度範囲から外れている発光素子に対して、前記透光部材の外側の表面上に、透光性と前記透光部材の屈折率よりも大きい屈折率とを有するとともに前記混合光のうち短波長側の光の所定の一部を反射する反射膜を50nm以下の膜厚にて形成する反射膜形成工程と、を備え、
前記反射膜の屈折率及び前記膜厚が、調整色度に基づいて決定される、
ことを特徴とする。
こととしてもよい。
こととしてもよい。
こととしてもよい。
こととしてもよい。
こととしてもよい。
こととしてもよい。
こととしてもよい。
こととしてもよい。
こととしてもよい。
発光体が発する複数色の混合光を出射し、出射面に透光部材が形成された発光装置の色度調整方法であって、
前記発光装置が出射する光の色度を測定し、
所定の合格色度範囲から外れている発光装置に対して、前記透光部材の外側の表面上に、透光性と前記透光部材の屈折率よりも大きい屈折率とを有するとともに前記発光体が発する光のうち短波長側の光の所定の一部を反射する反射膜を50nm以下の膜厚にて形成し、
前記反射膜の屈折率及び前記膜厚が、調整色度に基づいて決定される、
ことを特徴とする。
図1に本実施形態に係る発光装置10を示す。発光装置10は、導電体12a,12bと、LED素子13と、ワイヤ14a,14bと、封止樹脂15と、蛍光体16と、透明樹脂17と、透明膜18と、を備える、いわゆる砲弾型の発光装置である。
第1実施形態ではALD法により透明膜18を成膜したが、本実施形態の如くスパッタリング法又はCVD(Chemical Vapor Deposition:化学気相成長)法によっても好適な透明膜18を形成することができる。
第1実施形態では、1つの半完成品100に対して透明膜18を成膜する例について説明した。この他にも、本実施形態のように複数の半完成品100をまとめてALD法によって透明膜18を成膜することとしてもよい。
第1実施形態では砲弾型の発光装置10を例として説明したが、発光装置の形状はこれには限られない。例えば、本実施形態の如く表面実装型の発光装置も用いることができる。
第1実施形態では、半完成品100の色度の測定工程と透明膜18の形成工程とをそれぞれ別の光特性測定装置40及びALD装置50を用いて行った。この他にも本実施形態のように、両者の装置の機能を1つの室内で行うこととしてもよい。
21 基板
12a,12b,22a,22b 導電体
13,23 LED素子
13a,13b 電極
14a,14b,24a,24b ワイヤ
15,25 封止樹脂
16,26 蛍光体
17 透明樹脂
18,28 透明膜
19,29 反射部
31 ボンディング装置
32,34 ノズル
33 モールド型
40 光特性測定装置
41 光特性測定室
42,65 電源
43 プローブ
44 測定装置
45 駆動機構
46 アーム
48,58,68,78 制御部
50 ALD装置
51,61 成膜室
52,62 給気部
53,63 排気装置
55 CVD装置
60 スパッタリング装置
64,64a,64b ターゲット
70 ハイブリッド型成膜装置
71 処理室
100,200 半完成品
Claims (11)
- 発光素子を塔載する塔載工程と、
前記発光素子からの光によって励起され蛍光を発する蛍光体を備える工程と、
透光部材で前記発光素子を封止する封止工程と、
前記発光素子に発光させ、前記蛍光との混合光の色度を測定する測定工程と、
所定の合格色度範囲から外れている発光素子に対して、前記透光部材の外側の表面上に、透光性と前記透光部材の屈折率よりも大きい屈折率とを有するとともに前記混合光のうち短波長側の光の所定の一部を反射する反射膜を50nm以下の膜厚にて形成する反射膜形成工程と、を備え、
前記反射膜の屈折率及び前記膜厚が、調整色度に基づいて決定される、
ことを特徴とする発光装置の製造方法。 - 前記反射膜をALD(Atomic Layer Deposition)法により形成する、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 前記封止工程によって形成された複数個の封止体を同一の処理室内に設置し前記反射膜形成工程に供する、
ことを特徴とする請求項2に記載の発光装置の製造方法。 - 前記封止工程によって形成された封止体を処理室内に設置し、前記測定工程と前記反射膜形成工程とを同一の前記処理室内にて行う、
ことを特徴とする請求項2に記載の発光装置の製造方法。 - 前記反射膜をスパッタリング法又はCVD(Chemical Vapor Deposition)法により形成する、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 前記透光部材の屈折率と前記反射膜の屈折率との差が0.3以上である、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 前記反射膜の材料は、TiO 2 、ZnO、Ta 2 O 5 、Nb 2 O 5 、ZrO 2 、HfO 2 及びAl 2 O 3 からなる群から選択された1種の材料である、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 前記発光装置は、前記短波長側の青色光を発する発光ダイオード素子と前記青色光に励起されて前記青色光より高波長側の蛍光を発する蛍光体とを備える、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 前記透光部材は砲弾型の形状を有する、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 前記透光部材は、1又は複数の層を有しており、その最外層はシリコーン樹脂から形成される、
ことを特徴とする請求項1に記載の発光装置の製造方法。 - 発光体が発する複数色の混合光を出射し、出射面に透光部材が形成された発光装置の色度調整方法であって、
前記発光装置が出射する光の色度を測定し、
所定の合格色度範囲から外れている発光装置に対して、前記透光部材の外側の表面上に、透光性と前記透光部材の屈折率よりも大きい屈折率とを有するとともに前記発光体が発する光のうち短波長側の光の所定の一部を反射する反射膜を50nm以下の膜厚にて形成し、
前記反射膜の屈折率及び前記膜厚が、調整色度に基づいて決定される、
ことを特徴とする発光装置の色度調整方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012194128A JP5261742B1 (ja) | 2012-08-13 | 2012-09-04 | 発光装置の製造方法及び発光装置の色度調整方法 |
TW102127948A TWI591858B (zh) | 2012-08-13 | 2013-08-05 | Method for manufacturing light emitting device, method for adjusting color of light emitting device, and chromaticity adjusting device for light emitting device |
CN201310343931.7A CN103594566B (zh) | 2012-08-13 | 2013-08-08 | 发光装置的制造方法、发光装置的色度调整方法及发光装置的色度调整装置 |
KR1020130095188A KR102039430B1 (ko) | 2012-08-13 | 2013-08-12 | 발광 장치의 제조 방법, 발광 장치의 색도 조정 방법 및 발광 장치의 색도 조정 장치 |
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WO2014034785A1 (ja) * | 2012-08-29 | 2014-03-06 | シャープ株式会社 | 発光素子および発光素子の製造方法 |
WO2014132542A1 (ja) * | 2013-02-26 | 2014-09-04 | シャープ株式会社 | 発光素子 |
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JP6750252B2 (ja) * | 2016-02-29 | 2020-09-02 | 日亜化学工業株式会社 | 発光装置の製造方法 |
CN110630976A (zh) * | 2018-06-22 | 2019-12-31 | 株式会社小糸制作所 | 发光模块 |
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KR102039430B1 (ko) | 2019-11-01 |
KR20140021977A (ko) | 2014-02-21 |
JP2014056849A (ja) | 2014-03-27 |
TW201407834A (zh) | 2014-02-16 |
CN103594566A (zh) | 2014-02-19 |
CN103594566B (zh) | 2017-12-15 |
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