03-10-2013 дата публикации
Номер: US20130256598A1
Принадлежит:
Embodiments are directed to glass frits containing phosphors that can be used in LED lighting devices and for methods associated therewith for making the phosphor containing glass frit and their use in glass articles, for example, LED devices. 1. An article comprising a glass layer , wherein the layer comprises a glass comprising BiOand at least 30 mol % BO; and at least one phosphor , wherein the layer is a fired mixture of a frit comprising the BiOand BOand the at least one phosphor.2. The article according to claim 1 , wherein the layer is Pb free.3. The article according to claim 1 , wherein the glass comprises in mole percent:{'sub': 2', '3, '10-30% BiO;'}{'sub': '2', '0-20% MO, wherein M is Li, Na, K, Cs, or combinations thereof;'}0-20% RO, wherein R is Mg, Ca, Sr, Ba, or combinations thereof;{'sub': '2', '15-50% ZnO, ZnF, or a combination thereof;'}{'sub': 2', '3, '0-5% AlO;'}{'sub': 2', '5, '0-5% PO; and'}{'sub': 2', '3, '30-55% BO.'}4. The article according to claim 3 , comprising in mole percent:{'sub': 2', '3, '10-30% BiO;'}{'sub': '2', 'greater than 0% NaO;'}{'sub': '2', '15-50% ZnO, ZnF, or a combination thereof;'}{'sub': 2', '3, '30-55% BO;'}{'sub': '2', '0-3% SiO;'}{'sub': '3', '0-1% WO;'}0-12% BaO, CaO, SrO, or combinations thereof.5. The article according to claim 4 , comprising at least 1% NaO.6. The article according to claim 4 , comprising 15-50% ZnO.7. The article according to claim 4 , comprising:{'sub': 2', '3, '12-20% BiO;'}{'sub': '2', '5-12% NaO;'}20-30% ZnO;{'sub': 2', '3, '38-52% BO;'}{'sub': '2', '0-3% SiO;'}{'sub': '3', '0-1% WO;'}1-12% BaO, CaO, SrO, or combinations thereof.8. The article according to claim 7 , comprising:{'sub': 2', '3, '14-16% BiO;'}{'sub': '2', '5-11% NaO;'}22-27% ZnO;{'sub': 2', '3, '40-51% BO;'}{'sub': '2', '0-3% SiO;'}{'sub': '3', '0-1% WO;'}1-11% BaO, CaO, SrO, or combinations thereof.9. The article according to claim 8 , wherein the glass has a refractive index of 1.81-1.83 at 473 nm and a glass transition ...
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