JP3580335B2 - Fluorescent lamp - Google Patents

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JP3580335B2
JP3580335B2 JP31166296A JP31166296A JP3580335B2 JP 3580335 B2 JP3580335 B2 JP 3580335B2 JP 31166296 A JP31166296 A JP 31166296A JP 31166296 A JP31166296 A JP 31166296A JP 3580335 B2 JP3580335 B2 JP 3580335B2
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phosphor
emission peak
color
wavelength
fluorescent lamp
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JPH10154487A (en
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圭司 畠山
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、色度範囲を適切にした蛍光ランプに関する。
【０００２】
【従来の技術】
従来、水槽などに使用する蛍光ランプは水草の育成や、魚の観賞を目的にするため、青色蛍光体および赤色蛍光体の組み合わせにより構成されており、近年、３波長蛍光体を有する蛍光ランプとしてたとえば特開平５−１９０１４４号公報に記載の構成が知られている。
【０００３】
この特開平５−１９０１４４号公報には、波長域４３０ｎｍないし４６０ｎｍ付近に発光ピークを有する青色蛍光体、波長域５３０ｎｍないし５５０ｎｍに発光ピークを有する緑色蛍光体、波長域６１０ｎｍ付近に発光ピークを有する赤色蛍光体、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体を混合し、色度点をｘ＝０．２８８，ｙ＝０．２３２を中心とする５色標準等色偏差内に設定した蛍光ランプについて記載されている。
【０００４】
そして、赤色、黄緑および緑系統を原色のまま鮮やかに演色し、養魚水槽などに用いている。
【０００５】
【発明が解決しようとする課題】
しかしながら、上記特開平５−１９０１４４号公報に記載の構成の場合、色度点のｙ値が低いため視感上赤みが強く水の透明感が損ねられるとともに、珊瑚などは赤色の光により藻が生えやすいため、茶色に着色される問題を有している。
【０００６】
本発明は、上記問題点に鑑みなされたもので、自然に近い色で被照射物を観賞できるようにした蛍光ランプを提供することを目的とする。
【０００７】
【課題を解決するための手段】
請求項１記載の蛍光ランプは、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定したもので、たとえば水の透明感を高め自然の色に近付けて照度が向上するとともに、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【０００８】
請求項２記載の蛍光ランプは、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定したもので、たとえば水の透明感を高め自然の色に近付けて照度が向上するとともに、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【０００９】
請求項３記載の蛍光ランプは、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定したもので、たとえば水の透明感を高め自然の色に近付けて照度が向上するとともに、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【００１０】
請求項４記載の蛍光ランプは、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、 緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定したもので、たとえば水の透明感を高め自然の色に近付けて照度が向上するとともに、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【００１１】
請求項５記載の蛍光ランプは、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定したもので、たとえば水の透明感を高め自然の色に近付けて照度が向上するとともに、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【００１２】
請求項６記載の蛍光ランプは、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定したもので、たとえば水の透明感を高め自然の色に近付けて照度が向上するとともに、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【００１３】
請求項７記載の蛍光ランプは、請求項１ないし６いずれか一記載の蛍光ランプにおいて、波長域４３０ｎｍないし４９０ｎｍに発光ピークを有する青色蛍光体、波長域５１０ｎｍないし５７０ｎｍに発光ピークを有する緑色蛍光体、および、波長域５８０ｎｍないし６３０ｎｍに発光ピークを有する赤色蛍光体を有するもので、たとえば水槽などに使用する場合、水草の育成や魚の観賞に好適である。
【００１４】
請求項８記載の蛍光ランプは、請求項１ないし３および７いずれか一記載の蛍光ランプにおいて、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体を有するもので、より色を鮮やかにするとともに、比較的赤色に近い色が発光するので藻の発生を抑えられる。
【００１５】
請求項９記載の蛍光ランプは、請求項１ないし３、７および８いずれか一記載の蛍光ランプにおいて、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を有するもので、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えられる。
【００１６】
請求項１０記載の蛍光ランプは、請求項１ないし９いずれか一記載の蛍光ランプにおいて、相関色温度が８０００Ｋ以上であるもので、高色温度にすることにより赤色の成分の比率が減少でき、たとえば水槽内の水の透明感を高めて自然に近付けることができるとともに高照度が得られ、藻の発生も抑えられる。
【００１７】
【発明の実施の形態】
以下、本発明の蛍光ランプの一実施の形態を図面を参照して説明する。
【００１８】
図２は蛍光ランプを示す正面図で、この図２に示すように、蛍光ランプ１は、バルブ２を有し、このバルブ２は透光性を有するたとえばソーダライムガラス製で円筒状に形成され、バルブ２の両端部には封止部３が形成されている。
【００１９】
また、バルブ２の両端の封止部３にはバルブ２内に配設される電極４がリード線８を介して植設され、バルブ２の両端には口金５がそれぞれ固着され、各口金５には電極４に電気的に接続された一対の口金ピン６がそれぞれ突設されている。
【００２０】
さらに、電極４はフィラメントコイル７をそれぞれ有し、このフィラメントコイル７の両端を導電性を有する一対のリード線８で支持し、これら各リード線８が封止部３に気密に支持されているとともに封止部３から外部に突出して口金ピン６に接続されている。フィラメントコイル７にはエミッタとして電子放射性物質が塗布されている。
【００２１】
また、バルブ２内には、たとえば波長域４３０ｎｍないし４９０ｎｍに発光ピークを有する青色蛍光体、波長域５１０ｎｍないし５７０ｎｍに発光ピークを有する緑色蛍光体、および、波長域５８０ｎｍないし６３０ｎｍに発光ピークを有する赤色蛍光体が塗布され、さらに必要に応じて、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体のいずれかが１または２以上塗布されている。
【００２２】
このように、波長域４３０ｎｍないし４９０ｎｍに発光ピークを青色蛍光体、波長域５１０ｎｍないし５７０ｎｍに発光ピークを有する緑色蛍光体、および、波長域５８０ｎｍないし６３０ｎｍに発光ピークを有する赤色蛍光体の３波長蛍光形蛍光体が塗布されることにより、自然の色に近付けて照度を向上し、たとえば水槽用に用いた場合、水槽内の水の透明感も高まり、観賞魚や藻の色をより鮮やかにしながら、赤色の比率を低下させて珊瑚などに藻が発生して着色されることを防止する。
【００２３】
また、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体のいずれかが１または２以上塗布されていることにより、同様に水槽用に用いた場合、水槽内の水の透明感もより高まり、観賞魚や藻の色をさらに鮮やかにしながら、藻が生えやすい赤色の比率を低下させて珊瑚などに藻が発生して着色されることを防止する。また、３２０ｎｍないし３８０ｎｍの紫外域蛍光体が含まれる場合、水槽内に紫外線によって発光する蛍光物質が含まれた装飾物を入れておくことで演出効果を高めることもできる。
【００２４】
そして、相関色温度は８０００Ｋ以上に設定されている。
【００２５】
このように、相関色温度を８０００Ｋ以上にすることにより、高色温度にすることにより赤色の成分の比率が減少でき、たとえば水槽内の水の透明感を高めて自然に近付けることができるとともに高照度が得られ、珊瑚などの無脊椎動物への藻の発生も抑えられ、観賞魚などの観賞、育成により適する。
【００２６】
また、発色光の色度点を、ｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲、ｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲、あるいは、ｘ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定する。
【００２７】
このような色度範囲に発光色の色度点を設定することにより、従来よりｙ値が高くなり、視感上赤みが抑えられ、水の透明感が向上する。
【００２８】
【実施例】
次に、３つの実施例および２つの比較例について説明する。
【００２９】
【表１】

Figure 0003580335
【００３０】
まず、第１の実施例は、３波長蛍光形蛍光体を有する蛍光ランプ（形式：ＦＬ２０ＳＳ／１８）に波長域４２０ｎｍの青色蛍光体を塗布したもので、バルブ２内には、図３に示すように、波長域４３５ｎｍ付近に発光ピークを有する青色蛍光体、波長域４９０ｎｍ付近に発光ピークを有する緑青色蛍光体、波長域５４５ｎｍ付近に発光ピークを有する緑色蛍光体、波長域５８５ｎｍ付近に発光ピークを赤色蛍光体、および、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体が塗布され、図１に示すように、発色光の色度点は、ｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定されている。
【００３１】
また、第２の実施例では、３波長蛍光形蛍光体を有する蛍光ランプ（形式：ＦＬ２０ＳＳ／１８）に波長域４２０ｎｍの青色蛍光体を塗布したもので、バルブ２内には、図４に示すように、波長域４３５ｎｍ付近に発光ピークを有する青色蛍光体、波長域４９０ｎｍ付近に発光ピークを有する緑青色蛍光体、波長域５４５ｎｍ付近に発光ピークを有する緑色蛍光体、波長域５８５ｎｍ付近に発光ピークを有する赤色蛍光体、および、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体が塗布され、発色光の色度点は、ｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定されている。
【００３２】
第１の比較例ではＥＸ−Ｄ（形式：ＦＬ２０ＳＳ・ＥＸ−Ｄ／１８Ｈ）を、第２の比較例ではＢＲＦ（形式：ＦＬ２０Ｓ・ＢＲＦ）を用いている。
【００３３】
そして、視感評価実験を行なった結果、第１の実施例で最も水槽内の水の透明感が向上し、相関色温度が高いほど赤色成分の比率が低くなり、藻の発生を抑えることができた。
【００３４】
【発明の効果】
請求項１記載の蛍光ランプによれば、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定したので、たとえば水の透明感を高め自然の色に近付けて照度を向上でき、より色を鮮やかにできるとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００３５】
請求項２記載の蛍光ランプによれば、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定したので、たとえば水の透明感を高め自然の色に近付けて照度を向上でき、より色を鮮やかにできるとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００３６】
請求項３記載の蛍光ランプによれば、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定したので、たとえば水の透明感を高め自然の色に近付けて照度を向上でき、より色を鮮やかにできるとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００３７】
請求項４記載の蛍光ランプによれば、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定したので、たとえば水の透明感を高め自然の色に近付けて照度を向上でき、より色を鮮やかにできるとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００３８】
請求項５記載の蛍光ランプによれば、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定したので、たとえば水の透明感を高め自然の色に近付けて照度を向上でき、より色を鮮やかにできるとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００３９】
請求項６記載の蛍光ランプによれば、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、発色光の色度点をｘ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定したので、たとえば水の透明感を高め自然の色に近付けて照度を向上でき、より色を鮮やかにできるとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００４０】
請求項７記載の蛍光ランプによれば、請求項１ないし６いずれか一記載の蛍光ランプに加え、波長域４３０ｎｍないし４９０ｎｍに発光ピークを有する青色蛍光体、波長域５１０ｎｍないし５７０ｎｍに発光ピークを有する緑色蛍光体、および、波長域５８０ｎｍないし６３０ｎｍに発光ピークを有する赤色蛍光体を有するので、たとえば水槽などに使用する場合、水草の育成や魚の観賞を好適にできる。
【００４１】
請求項８記載の蛍光ランプによれば、請求項１ないし３および７いずれか一記載の蛍光ランプに加え、波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体を有するので、より色を鮮やかにするとともに、比較的赤色に近い色が発光するので藻の発生を抑えることができる。
【００４２】
請求項９記載の蛍光ランプによれば、請求項１ないし３、７および８いずれか一記載の蛍光ランプに加え、より色を鮮やかにするとともに、赤色の比率を抑えて藻の発生を抑えることができる。
【００４３】
請求項１０記載の蛍光ランプによれば、請求項１ないし９いずれか一記載の蛍光ランプに加え、相関色温度が８０００Ｋ以上であるので、高色温度にすることにより赤色の成分の比率が減少でき、たとえば水槽内の水の透明感を高めて自然に近付けることができるとともに高照度が得られ、藻の発生も抑えることができる。
【図面の簡単な説明】
【図１】本発明の蛍光ランプの一実施の形態を示すＣＩＥ色度図である。
【図２】同上蛍光ランプを示す正面図である。
【図３】同上第１の実施例の発光エネルギー分布を示すグラフである。
【図４】同上第２の実施例の発光エネルギー分布を示すグラフである。
【符号の説明】
１ 蛍光ランプ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fluorescent lamp having an appropriate chromaticity range.
[0002]
[Prior art]
Conventionally, a fluorescent lamp used for an aquarium or the like is formed of a combination of a blue phosphor and a red phosphor for the purpose of growing aquatic plants and watching fish, and recently, for example, as a fluorescent lamp having a three-wavelength phosphor, The configuration described in JP-A-5-190144 is known.
[0003]
JP-A-5-190144 discloses a blue phosphor having an emission peak around 430 nm to 460 nm, a green phosphor having an emission peak around 530 nm to 550 nm, and a red phosphor having an emission peak around 610 nm. A fluorescent material in which a deep red phosphor having an emission peak near 660 nm in a wavelength range of 660 nm is mixed, and the chromaticity point is set within a five-color standard uniform color deviation centered at x = 0.288 and y = 0.232. A lamp is described.
[0004]
The red, yellow-green, and green colors are rendered vividly in their original colors, and are used in fish tanks and the like.
[0005]
[Problems to be solved by the invention]
However, in the case of the configuration described in JP-A-5-190144, the y value of the chromaticity point is low, so that the redness is strong on the sight and the transparency of water is impaired, and the algae are coral and the like by red light. Since it is easy to grow, it has a problem of being colored brown.
[0006]
The present invention has been made in view of the above problems, and has as its object to provide a fluorescent lamp that allows an object to be illuminated to be viewed in a color close to nature.
[0007]
[Means for Solving the Problems]
The fluorescent lamp according to claim 1 includes a blue phosphor, a green phosphor, and a red phosphor having three emission wavelengths having an emission peak near a wavelength range of 420 nm, and the chromaticity point of the generated light is x = 0. .272, y = 0.278. The chromaticity range is set within an elliptical five-color standard color matching deviation centered on y. For example , the illuminance is improved by increasing the transparency of water and bringing it closer to a natural color. In addition to making the color more vivid, the ratio of red color can be suppressed to reduce the occurrence of algae.
[0008]
The fluorescent lamp according to the second aspect has a three-wavelength phosphor of a blue phosphor, a green phosphor, and a red phosphor having a light emission peak near a wavelength range of 420 nm, and the chromaticity point of the generated light is x = 0. .261, y = 0.262 is set in the chromaticity range within the standard color deviation of five colors of an ellipse. For example, the illuminance is improved by increasing the transparency of water and approaching natural colors. In addition to making the color more vivid, the ratio of red color can be suppressed to reduce the occurrence of algae.
[0009]
According to a third aspect of the present invention, there is provided a fluorescent lamp including a blue phosphor, a green phosphor, and a red phosphor having three emission wavelengths having an emission peak near a wavelength range of 420 nm. .261, y = 0.264 is set within a chromaticity range within a standard color matching deviation of five colors of an ellipse. For example, the illuminance is improved by increasing the transparency of water and bringing it closer to a natural color. In addition to making the color more vivid, the ratio of red color can be suppressed to reduce the occurrence of algae.
[0010]
The fluorescent lamp according to claim 4 is a deep red phosphor having an emission peak near a wavelength range of 660 nm, a blue phosphor having an emission peak near a wavelength range of 420 nm, and an ultraviolet ray having an emission peak near a wavelength range of 320 nm to 380 nm. It has a blue phosphor, a green phosphor, and a red phosphor having three or more wavelengths of two or more kinds of range phosphors, and has a chromaticity point of color light of x = 0.272 and y = 0.278. The chromaticity range is set within the standard elliptic color deviation of five colors of the center ellipse. For example, the clarity of water is increased and the illuminance is improved by approaching a natural color. And the occurrence of algae can be suppressed.
[0011]
The fluorescent lamp according to claim 5 is a deep red phosphor having an emission peak near 660 nm, a blue phosphor having an emission peak near 420 nm, and an ultraviolet ray having an emission peak near 320 to 380 nm. A three-wavelength phosphor of blue, green, and red phosphors having two or more kinds of phosphors having a chromaticity point of x = 0.261 and y = 0.262. The chromaticity range is set within the standard elliptic color deviation of five colors of the center ellipse. For example, the clarity of water is increased and the illuminance is improved by approaching a natural color. And the occurrence of algae can be suppressed.
[0012]
The fluorescent lamp according to claim 6 is a deep red phosphor having an emission peak near a wavelength range of 660 nm, a blue phosphor having an emission peak near a wavelength range of 420 nm, and an ultraviolet ray having an emission peak near a wavelength range of 320 nm to 380 nm. It has a blue phosphor, a green phosphor, and a red phosphor having three or more wavelengths that have two or more kinds of phosphors, and has a chromaticity point of x = 0.261 and y = 0.264 for the color light. The chromaticity range is set within the standard elliptic color deviation of five colors of the center ellipse. For example, the clarity of water is increased and the illuminance is improved by approaching a natural color. And the occurrence of algae can be suppressed.
[0013]
Fluorescent lamp of claim 7, wherein, in the fluorescent lamp of claims 1 to 6 any one described, a green phosphor having an emission peak in a blue phosphor, to no wavelength range 510 nm 570 nm with an emission peak to no wavelength range 430nm to 490nm And a red phosphor having an emission peak in a wavelength range of 580 nm to 630 nm. When used in an aquarium, for example, it is suitable for growing aquatic plants and watching fish.
[0014]
The fluorescent lamp according to the eighth aspect is the fluorescent lamp according to any one of the first to third and seventh aspects, further comprising a deep red phosphor having a light emission peak near a wavelength range of 660 nm to further enhance the color. In addition, since a relatively red color emits light, generation of algae can be suppressed.
[0015]
The fluorescent lamp according to the ninth aspect is the fluorescent lamp according to any one of the first to third, seventh, and eighth aspects, wherein the fluorescent lamp has an ultraviolet region phosphor having an emission peak near a wavelength region of 320 nm to 380 nm, so that the color can be further enhanced. The vividness is reduced, and the ratio of red color is reduced to reduce the occurrence of algae.
[0016]
The fluorescent lamp according to claim 10 is the fluorescent lamp according to any one of claims 1 to 9, wherein the correlated color temperature is 8000 K or more, and by increasing the color temperature, the ratio of the red component can be reduced. For example, the transparency of the water in the aquarium can be enhanced to make the water closer to nature, and high illuminance can be obtained.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the fluorescent lamp of the present invention will be described with reference to the drawings.
[0018]
FIG. 2 is a front view showing the fluorescent lamp. As shown in FIG. 2, the fluorescent lamp 1 has a bulb 2, and the bulb 2 is made of a translucent material such as soda lime glass and is formed in a cylindrical shape. Sealing portions 3 are formed at both ends of the bulb 2.
[0019]
Electrodes 4 disposed in the bulb 2 are implanted into the sealing portions 3 at both ends of the bulb 2 via lead wires 8, and caps 5 are fixed to both ends of the bulb 2, respectively. Are provided with a pair of base pins 6 electrically connected to the electrodes 4 respectively.
[0020]
Further, the electrode 4 has a filament coil 7, and both ends of the filament coil 7 are supported by a pair of conductive leads 8. Each of the leads 8 is hermetically supported by the sealing portion 3. At the same time, it protrudes outside from the sealing portion 3 and is connected to the base pin 6. An electron-emitting substance is applied to the filament coil 7 as an emitter.
[0021]
Further, in the bulb 2, for example, a blue phosphor having an emission peak in a wavelength range of 430 nm to 490 nm, a green phosphor having an emission peak in a wavelength range of 510 to 570 nm, and a red phosphor having an emission peak in a wavelength range of 580 to 630 nm. A phosphor is coated, and if necessary, a deep red phosphor having an emission peak near a wavelength range of 660 nm, a blue phosphor having an emission peak near a wavelength range of 420 nm, and an emission peak near a wavelength range of 320 nm to 380 nm. One or two or more of the ultraviolet phosphors having the following are applied.
[0022]
Thus, the three-wavelength fluorescence of the blue phosphor having the emission peak in the wavelength range of 430 nm to 490 nm, the green phosphor having the emission peak in the wavelength range of 510 nm to 570 nm, and the red phosphor having the emission peak in the wavelength range of 580 nm to 630 nm. By applying a shaped phosphor, the illuminance is improved by approaching the natural color, for example, when used for an aquarium, the transparency of the water in the aquarium also increases, while making the colors of ornamental fish and algae more vivid, The ratio of red is reduced to prevent algae from forming and coloring in corals and the like.
[0023]
Further, any one of a deep red phosphor having an emission peak around 660 nm, a blue phosphor having an emission peak around 420 nm, and an ultraviolet phosphor having an emission peak around 320 nm to 380 nm is used. When used for an aquarium, the transparency of the water in the aquarium is also increased by applying one or two or more, and the ratio of red, in which algae can easily grow, while making the colors of ornamental fish and algae more vivid. It prevents the algae from being generated and colored by coral. In addition, when an ultraviolet fluorescent material of 320 nm to 380 nm is included, the effect can be enhanced by putting a decoration containing a fluorescent material that emits light by ultraviolet rays in a water tank.
[0024]
The correlated color temperature is set to 8000K or higher.
[0025]
As described above, by setting the correlated color temperature to 8000K or higher, the ratio of the red component can be reduced by increasing the color temperature, and for example, the transparency of water in the water tank can be increased to make the water closer to nature and can be increased. The illuminance is obtained, the generation of algae on invertebrates such as corals is suppressed, and it is more suitable for appreciation and breeding of ornamental fish.
[0026]
The chromaticity point of the colored light is defined as a chromaticity range within a standard color matching deviation of five colors of an ellipse centered at x = 0.272 and y = 0.278, x = 0.261, y = 0.262. Is set within the chromaticity range within the five-color standard color matching deviation of the ellipse centered at, or the chromaticity range within the five-color standard color matching deviation of the ellipse centered at x = 0.261, y = 0.264 I do.
[0027]
By setting the chromaticity point of the emission color in such a chromaticity range, the y value becomes higher than before, the redness in visual perception is suppressed, and the transparency of water is improved.
[0028]
【Example】
Next, three examples and two comparative examples will be described.
[0029]
[Table 1]
Figure 0003580335
[0030]
First, in the first embodiment, a fluorescent lamp (model: FL20SS / 18) having a three-wavelength fluorescent phosphor is coated with a blue phosphor in a wavelength range of 420 nm, and the inside of the bulb 2 is shown in FIG. As described above, a blue phosphor having an emission peak around 435 nm, a green-blue phosphor having an emission peak around 490 nm, a green phosphor having an emission peak around 545 nm, and an emission peak around 585 nm. the red phosphor, and, deep red phosphor having an emission peak is applied in the vicinity of the wavelength region 6 6 0 nm, as shown in FIG. 1, the chromaticity point of the color light, x = 0.272, y = 0 .278 is set within a chromaticity range within a standard color matching deviation of five colors of an ellipse.
[0031]
In the second embodiment, a fluorescent lamp (model: FL20SS / 18) having a three-wavelength fluorescent phosphor is coated with a blue phosphor in a wavelength range of 420 nm, and the inside of the bulb 2 is shown in FIG. As described above, a blue phosphor having an emission peak around 435 nm, a green-blue phosphor having an emission peak around 490 nm, a green phosphor having an emission peak around 545 nm, and an emission peak around 585 nm. red phosphor having, and, deep red phosphor having an emission peak is applied in the vicinity of the wavelength region 6 6 0 nm, the chromaticity point of the color light, x = 0.261, and about a y = 0.26 2 Are set within the chromaticity range within the five-color standard color matching deviation of the ellipse.
[0032]
In the first comparative example, EX-D (type: FL20SS • EX-D / 18H) is used, and in the second comparative example, BRF (type: FL20S · BRF) is used.
[0033]
As a result of a visual evaluation experiment, the transparency of water in the aquarium was improved most in the first embodiment, and the higher the correlated color temperature, the lower the ratio of the red component, and it was possible to suppress the occurrence of algae. did it.
[0034]
【The invention's effect】
According to the first aspect of the present invention, the fluorescent lamp includes a blue phosphor, a green phosphor, and a red phosphor having three emission wavelengths having an emission peak near a wavelength range of 420 nm. = 0.272, y = 0.278, so that the chromaticity range is set within the standard color deviation of five colors of an ellipse. For example, the illuminance can be improved by increasing the transparency of water and approaching the natural color . The color can be more vivid, and the ratio of red color can be suppressed to suppress the occurrence of algae.
[0035]
According to the fluorescent lamp of the present invention, the fluorescent lamp has a blue, green, and red phosphor having three emission wavelengths having a light emission peak in the vicinity of a wavelength range of 420 nm. = 0.261, y = 0.262, the chromaticity range is set within the standard color deviation of five colors of the ellipse. For example, the illuminance can be improved by increasing the transparency of water and approaching the natural color. The color can be more vivid, and the ratio of red color can be suppressed to suppress the occurrence of algae.
[0036]
According to the third aspect of the present invention, the fluorescent lamp includes a blue phosphor, a green phosphor, and a red phosphor having three emission wavelengths having an emission peak near a wavelength range of 420 nm. = 0.261, y = 0.264, the chromaticity range is set within the standard color deviation of five colors of the ellipse. For example, the illuminance can be improved by increasing the transparency of water and approaching the natural color. The color can be more vivid, and the ratio of red color can be suppressed to suppress the occurrence of algae.
[0037]
According to the fluorescent lamp of the fourth aspect , a deep red phosphor having an emission peak around 660 nm, a blue phosphor having an emission peak around 420 nm, and an emission peak around 320 nm to 380 nm. A blue phosphor, a green phosphor, and a red phosphor having three or more kinds of ultraviolet phosphors having a chromaticity point of x = 0.272 and y = 0.72. Since the chromaticity range is set within the standard color deviation of five colors of an ellipse centered at 278, for example, the transparency of water can be enhanced to bring the color closer to a natural color and the illuminance can be improved. And the generation of algae can be suppressed.
[0038]
According to the fluorescent lamp of the fifth aspect , a deep red phosphor having an emission peak around 660 nm, a blue phosphor having an emission peak around 420 nm, and an emission peak around 320 nm to 380 nm. A blue phosphor, a green phosphor, and a red phosphor having three or more types of ultraviolet phosphors, and have a chromaticity point of color light of x = 0.261 and y = 0.61. Since the chromaticity range is set within a standard color deviation of five colors of an ellipse centered at 262, for example, the clarity of water can be increased and the illuminance can be improved by approaching a natural color. And the generation of algae can be suppressed.
[0039]
According to the fluorescent lamp of the sixth aspect , a deep red phosphor having an emission peak around 660 nm, a blue phosphor having an emission peak around 420 nm, and an emission peak around 320 nm to 380 nm. A blue phosphor, a green phosphor, and a red phosphor having three or more types of ultraviolet phosphors, and have a chromaticity point of color light of x = 0.261 and y = 0.61. Since the chromaticity range is set within the standard color deviation of five colors of an ellipse centered at H.264, for example, the illuminance can be improved by increasing the transparency of water and approaching a natural color, and the color can be made more vivid and red. And the generation of algae can be suppressed.
[0040]
According to the fluorescent lamp of claim 7, wherein, with in addition to the fluorescent lamp of any one claim 1 to 6, a blue phosphor having an emission peak to no wavelength range 430nm to 490 nm, the emission peak in the wavelength range 510nm to 570nm Since it has a green phosphor and a red phosphor having an emission peak in a wavelength range of 580 nm to 630 nm, when used in, for example, an aquarium, it is possible to suitably grow aquatic plants and watch fish.
[0041]
According to the fluorescent lamp of the eighth aspect, in addition to the fluorescent lamp of any one of the first to third and seventh aspects , a deep red phosphor having an emission peak near a wavelength range of 660 nm is provided, so that the color is more vivid. At the same time, the emission of a color that is relatively close to red makes it possible to suppress the occurrence of algae.
[0042]
According to the fluorescent lamp according to the ninth aspect, in addition to the fluorescent lamp according to any one of the first to third, seventh and eighth aspects , the color is more vivid and the ratio of red is suppressed to suppress the occurrence of algae. Can be.
[0043]
According to the fluorescent lamp of the tenth aspect, in addition to the fluorescent lamp of any one of the first to ninth aspects, since the correlated color temperature is 8000K or more, the ratio of the red component is reduced by increasing the color temperature. For example, the transparency of the water in the aquarium can be increased to make the water closer to nature, and high illuminance can be obtained, and generation of algae can be suppressed.
[Brief description of the drawings]
FIG. 1 is a CIE chromaticity diagram showing one embodiment of a fluorescent lamp of the present invention.
FIG. 2 is a front view showing the fluorescent lamp.
FIG. 3 is a graph showing a light emission energy distribution of the first example.
FIG. 4 is a graph showing a light emission energy distribution of the second embodiment .
[Explanation of symbols]
1 fluorescent lamp

Claims (10)

波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、
発色光の色度点をｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定した
ことを特徴とする蛍光ランプ。Blue phosphor having an emission peak in the vicinity of the wavelength region 420 nm, have a three-wavelength emission type fluorescent material of the green phosphor and the red phosphor,
The chromaticity point of the color light x = 0.272, y = 0.278 center to fluorescence you wherein <br/> that is set to the chromaticity range of the five color standard such as the color deviation ellipse lamp. 波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、
発色光の色度点をｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定した
ことを特徴とする蛍光ランプ。Blue phosphor having an emission peak in the vicinity of the wavelength region 420 nm, have a three-wavelength emission type fluorescent material of the green phosphor and the red phosphor,
The chromaticity point of the color light x = 0.261, y = 0.262 center to fluorescence you wherein <br/> that is set to the chromaticity range of the five color standard such as the color deviation ellipse lamp. 波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、
発色光の色度点をｘ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定した
ことを特徴とする蛍光ランプ。Blue phosphor having an emission peak in the vicinity of the wavelength region 420 nm, have a three-wavelength emission type fluorescent material of the green phosphor and the red phosphor,
The chromaticity point of the color light x = 0.261, y = 0.264 center to fluorescence you wherein <br/> that is set to the chromaticity range of the five color standard such as the color deviation ellipse lamp. 波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、
発色光の色度点をｘ＝０．２７２，ｙ＝０．２７８を中心とする楕円の５色標準等色偏差内の色度範囲に設定した
ことを特徴とする蛍光ランプ。Deep red phosphor having an emission peak in the vicinity of a wavelength region 660 nm, a blue phosphor having an emission peak in the vicinity of a wavelength region 420 nm, and, to no wavelength range 320nm to have a ultraviolet phosphor having an emission peak around 380 nm 2 or more A blue phosphor, a green phosphor and a red phosphor having a three-wavelength light-emitting phosphor,
The chromaticity point of the color light x = 0.272, y = 0.278 center to fluorescence you wherein <br/> that is set to the chromaticity range of the five color standard such as the color deviation ellipse lamp. 波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、
発色光の色度点をｘ＝０．２６１，ｙ＝０．２６２を中心とする楕円の５色標準等色偏差内の色度範囲に設定した
ことを特徴とする蛍光ランプ。Deep red phosphor having an emission peak in the vicinity of a wavelength region 660 nm, a blue phosphor having an emission peak in the vicinity of a wavelength region 420 nm, and, to no wavelength range 320nm to have a ultraviolet phosphor having an emission peak around 380 nm 2 or more A blue phosphor, a green phosphor and a red phosphor having a three-wavelength light-emitting phosphor,
The chromaticity point of the color light x = 0.261, y = 0.262 center to fluorescence you wherein <br/> that is set to the chromaticity range of the five color standard such as the color deviation ellipse lamp. 波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体、波長域４２０ｎｍ付近に発光ピークを有する青色蛍光体、および、波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を２種以上有した青色蛍光体、緑色蛍光体および赤色蛍光体の３波長発光形蛍光体を有し、
発色光の色度点をｘ＝０．２６１，ｙ＝０．２６４を中心とする楕円の５色標準等色偏差内の色度範囲に設定した
ことを特徴とする蛍光ランプ。Deep red phosphor having an emission peak in the vicinity of a wavelength region 660 nm, a blue phosphor having an emission peak in the vicinity of a wavelength region 420 nm, and, to no wavelength range 320nm to have a ultraviolet phosphor having an emission peak around 380 nm 2 or more A blue phosphor, a green phosphor and a red phosphor having a three-wavelength light-emitting phosphor,
The chromaticity point of the color light x = 0.261, y = 0.264 center to fluorescence you wherein <br/> that is set to the chromaticity range of the five color standard such as the color deviation ellipse lamp. 波長域４３０ｎｍないし４９０ｎｍに発光ピークを有する青色蛍光体、波長域５１０ｎｍないし５７０ｎｍに発光ピークを有する緑色蛍光体、および、波長域５８０ｎｍないし６３０ｎｍに発光ピークを有する赤色蛍光体を有する
ことを特徴とする請求項１ないし６いずれか一記載の蛍光ランプ。It is no wavelength range 430nm blue phosphor having an emission peak in 490 nm, the green phosphor having an emission peak in the wavelength range 510nm to 570 nm, and a feature that to no wavelength range 580nm with a red phosphor having an emission peak at 630nm The fluorescent lamp according to any one of claims 1 to 6 . 波長域６６０ｎｍ付近に発光ピークを有する深赤色蛍光体を有する
ことを特徴とする請求項１ないし３および７いずれか一記載の蛍光ランプ。The fluorescent lamp according to any one of claims 1 to 3, further comprising a deep red phosphor having an emission peak near a wavelength range of 660 nm. 波長域３２０ｎｍないし３８０ｎｍ付近に発光ピークを有する紫外域蛍光体を有する
ことを特徴とする請求項１ないし３、７および８いずれか一記載の蛍光ランプ。Claims 1 to 3, 7 and 8 fluorescent lamp of any one described and having a wavelength range 320nm to ultraviolet phosphor having an emission peak around 380 nm. 相関色温度が８０００Ｋ以上である
ことを特徴とする請求項１ないし９いずれか一記載の蛍光ランプ。The fluorescent lamp according to any one of claims 1 to 9, wherein the correlated color temperature is 8000K or more.
JP31166296A 1996-11-22 1996-11-22 Fluorescent lamp Expired - Fee Related JP3580335B2 (en)

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