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2. 发明申请

WO2015060701A1 PHOTOBIOLOGICALLY FRIENDLY PHOSPHOR CONVERTED LIGHT-EMITTING DIODE 审中-公开
标题翻译：光生物学友好的磷光转换发光二极管
公开(公告)号：WO2015060701A1
公开(公告)日：2015-04-30
申请号：PCT/LT2014/000012
申请日：2014-10-20
申请人： VILNIUS UNIVERSITY
发明人： ZABILIŪTĖ, Akvilė , ŽUKAUSKAS, Artūras , VAICEKAUSKAS, Rimantas , VITTA, Pranciškus
IPC分类号： C09K11/08 , H01L33/50
CPC分类号： C09K11/08 , H01L33/502 , H01L2224/48091 , H01L2224/48247 , H01L2224/73265 , H01L2924/00014
摘要： The proposed low correlated colour temperature phosphor converted LED is characterized by a small non-visual photobiological action to humans, which manifests itself as the suppression of melatonin secretion in the pineal gland, and can be used for the illumination of streets, car parking lots, pedestrian and bicycle tracks, building facades, monuments, parks and house yards that only slightly disrupts the circadian rhythm of humans. The LED has a semiconductor chip that emits short wavelength light in the blue, violet or near UV region due to the injection electroluminescence and a wavelength converter which converts the said short wavelength light due to photoluminescence to longer wavelength light having an orange component with the spectrum peaking in the range of about from 570 nm to 600 nm. In the case of partial conversion LED, the chip generates blue light that is partially converted to orange light by one phosphor (for instance, yttrium magnesium aluminium silicon garnet activated by trivalent cerium ions (Y 3 Mg 2 AISi 2 0 12 :Ce 3+ ), barium strontium silicon nitride activated by divalent europium ions ((Ba,Sr) 2 Si 5 N 8 :Eu 2+ ), barium strontium orthosilicate, activated by divalent europium ions ((Ba,Sr)SiO 4 :Eu 2+ ), calcium - alpha silicon aluminium oxynitride, activated by divalent europium ions (Ca-α-SiAlON:Eu 2+ ), or calcium strontium selenide, activated by divalent europium ions ((Ca,Sr)Se:Eu 2+ )) contained in the converter. In the case of complete conversion LED, the chip generates near UV light that is completely absorbed in the converter and converted by a blue phosphor (for instance, CaMgSi 2 O 6 :Eu 2+ , Ba 5 SiO 4 Cl 6 :Eu 2+ , Mg 3 Ca 3 (PO 4 ) 4 :Eu 2+ , (Ca,Sr,Ba) 5 (PO 4 ) 3 CI :Eu 2+ , Ca 2 B 5 O 9 (Br,Cl):Eu 2+ , BaMgAl 10 O 17 :Eu 2+ ,Mn 2+ , BaMg 2 Al 16 O 27 :Eu 2+ , (Lu,Gd) 2 SiO 5 :Ce 3+ , Sr 2 P 2 O 7 :Sn 2+ , SrSiAI 2 O 3 N 2 :Ce 3+ or La 3 Si 6 N 11 :Ce 3+ ) and the orange phosphors mentioned above.
摘要翻译：所提出的低相关色温磷光体转换LED的特征在于对人体的小的非视觉光生物作用，其表现为抑制松果体中褪黑激素分泌，并且可用于照明街道，停车场，行人和自行车道，建筑立面，纪念碑，公园和庭院，只会轻微破坏人类的昼夜节律。 LED具有由于注入电致发光而在蓝色，紫色或近紫外区域发射短波长的光的半导体芯片，以及波长转换器，其将由于光致发光而将所述短波长光转换为具有橙色分量的更长波长的光峰值在约570nm至600nm的范围内。在部分转换LED的情况下，芯片通过一个荧光体（例如，由三价铈离子（Y3Mg2AISi2012：Ce3 +）激活的钇镁铝硅石榴石）产生被部分转换为橙光的蓝光，二价活化的锶硅酸锶铕离子（（Ba，Sr）2Si5N8：Eu2 +），二价铕离子（（Ba，Sr）SiO 4：Eu 2+）活化的原硅酸锶，由二价铕离子（Ca-α- SiAlON：Eu2 +）或硒化锶硒，由二价铕离子（（Ca，Sr）Se：Eu2 +））活化。在完全转换LED的情况下，芯片产生在转换器中完全吸收的近紫外光，并通过蓝色荧光体（例如CaMgSi2O6：Eu2 +，Ba5SiO4Cl6：Eu2 +，Mg3Ca3（PO4）4：Eu2 +，（Ca， Sr，Ba）5（PO4）3Cl：Eu2 +，Ca2B5O9（Br，Cl）：Eu2 +，BaMgAl10O17：Eu2 +，Mn2 +，BaMg2Al16O27：Eu2 +，（Lu，Gd）2SiO5：Ce3 +，Sr2P2O7：Sn2 +，SrSiAl2O3N2：Ce3 +或La3Si6N11： Ce3 +）和上述橙色荧光体。

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