JP2022103159A - 発光装置、照明装置および生物育成用の照明装置 - Google Patents
発光装置、照明装置および生物育成用の照明装置 Download PDFInfo
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Abstract
Description
図1は、本発明の一実施形態に係る発光装置の外観斜視図である。図2は、図1に示す発光装置を仮想線で示す平面で切断したときの断面図である。図3は、図2に示す発光装置の拡大図である。図4は、本発明の実施形態の発光装置における外部放射光のスペクトルを示すグラフである。図5は、図4に太陽光のスペクトルを加えて示すグラフである。これらの図において、発光装置1は、基板2と、複数の発光素子3と、枠体4と、封止部材5と、波長変換部材6とを備えている。
図6は、本実施形態に係る発光装置を備える照明装置の外観斜視図であり、図7は、図6に示す照明装置の分解斜視図である。図8は、図6に示す照明装置の筐体から透光性基板を取り外した状態を示す斜視図である。
10 照明装置
11 筐体
12 配線基板
13 透光性基板
2 基板
21 本体部
21a 底部
21b 支持部
22 蓋部
3 発光素子
4 枠体
5 封止部材
6 波長変換部材
61 第1蛍光体
62 第2蛍光体
λ1 第1ピーク波長
λ2 第2ピーク波長
λ3 第3ピーク波長
Claims (16)
- 発光素子と、
前記発光素子が発する光に対して、400~500nmの波長領域に第1ピーク波長を有する光を発する第1蛍光体と、
前記発光素子が発光する光に対して、500~600nmの波長領域に第2ピーク波長を有する光を発する第2蛍光体と、を備えた発光装置であって、
前記発光素子は、315~400nmの波長領域に第3ピーク波長を有する光を発し、
前記発光装置の発光スペクトルは、前記第1ピーク波長、前記第2ピーク波長および前記第3ピーク波長を有し、
前記発光スペクトルにおいて、前記第3ピーク波長の光強度は、前記第1ピーク波長の光強度および前記第2ピーク波長の光強度のいずれの光強度よりも小さいことを特徴とする発光装置。 - 前記発光スペクトルにおいて、前記第3ピーク波長の光強度は、前記発光スペクトルの全波長領域の最大ピーク波長の光強度の20%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。
- 前記発光スペクトルにおいて、前記第3ピーク波長の光強度は、前記発光スペクトルの全波長領域の最大ピーク波長の光強度の40%以上であることを特徴とする請求項2に記載の発光装置。
- 前記発光スペクトルにおいて、前記第1ピーク波長が、最大ピーク波長であることを特徴とする請求項1に記載の発光装置。
- 前記発光素子が発する光に対して、600~650nmの波長領域に第4ピーク波長を有する光を発する第3蛍光体、を備え、
前記発光スペクトルは、前記第3ピーク波長の光強度よりも大きな光強度の前記第4ピーク波長を有することを特徴とする請求項1から請求項4のいずれか1つの請求項に記載の発光装置。 - 前記発光スペクトルにおいて、前記第1ピーク波長の光強度、前記第2ピーク波長の光強度および前記第4ピーク波長の光強度の間における差は、最大ピーク波長の光強度に対して20%以下であることを特徴とする請求項5に記載の発光装置。
- 前記発光スペクトルにおいて、315nm以下の波長領域における光強度は、前記第3ピーク波長の光強度の30%以下であることを特徴とする請求項1から請求項6のいずれか1つの請求項に記載の発光装置。
- 前記発光スペクトルにおいて、315~400nmの波長領域における光強度の積分値は、300~950nmの波長領域における光強度の積分値の20%以上60%以下であることを特徴とする請求項1から請求項7のいずれか1つの請求項に記載の発光装置。
- 前記発光素子が発する光に対して、赤色の蛍光および/または近赤外領域の蛍光を放射する第3蛍光体、を更に備えたことを特徴とする請求項1から請求項4のいずれか1つの請求項に記載の発光装置。
- 前記発光スペクトルにおいて、430~700nmにおける最大ピーク波長の光強度を1とした場合、750nmにおける相対光強度は、0.55以上0.65以下であることを特徴とする請求項1から請求項9のいずれか1つの請求項に記載の発光装置。
- 前記発光スペクトルにおいて、430~700nmにおける最大ピーク波長の光強度を1とした場合、800nmにおける相対光強度は、0.2以上0.3以下であることを特徴とする請求項1から請求項10のいずれか1つの請求項に記載の発光装置。
- 前記発光スペクトルは、670~700nmの波長領域に第5ピーク波長を有することを特徴とする請求項1から請求項11のいずれか1つの請求項に記載の発光装置。
- 基板と、前記基板上に設けられた複数の前記発光素子と、前記基板上に複数の前記発光素子を取り囲むように設けられた枠体と、前記枠体で囲まれた内側の空間内に、前記枠体で囲まれた空間の上部の一部を残して充填された封止部材と、前記枠体で囲まれた内側の空間の上部の一部に、前記封止部材の上面に沿って前記枠体内に収まるように設けられた少なくとも前記第1蛍光体および前記第2蛍光体を含む波長変換部材と、を備えたことを特徴とする請求項1から請求項12のいずれか1つの請求項に記載の発光装置。
- 請求項1から請求項13のいずれか1つの請求項に記載の発光装置を少なくとも1つ備えたことを特徴とする照明装置。
- 請求項1から請求項13のいずれか1つの請求項に記載の発光装置を少なくとも1つ備えたことを特徴とする生物育成用の照明装置。
- 開口を有する筐体と、前記筐体内に配列された、請求項1から請求項13のいずれか1つの請求項にそれぞれ記載の複数の発光装置と、前記複数の発光装置が実装された配線基板と、前記筐体によって支持され、前記筐体の前記開口を閉塞している透光性基板と、を備えたことを特徴とする照明装置。
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EP3576168B1 (en) * | 2018-05-31 | 2023-05-31 | Nichia Corporation | Light emitting device |
CN110212076B (zh) * | 2019-06-05 | 2024-03-19 | 欧普照明股份有限公司 | 一种光源模组及包括该光源模组的照明装置 |
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