29-04-2021 дата публикации
Номер: US20210123577A1
Принадлежит:
A light source device includes: an excitation light source that emits excitation light having an energy density of 10 W/mmor more; and a phosphor layer that has phosphor particles embedded in the matrix. The phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2). 1. A light source device comprising:{'sup': '2', 'an excitation light source that emits excitation light having an energy density of 10 W/mmor more; and'} [{'br': None, 'sub': 3-x1-y1', 'y1', 'x1', '5-z1', 'z1', '12, 'sup': '1', 'YRCeAlGaO\u2003\u2003(1)'}, {'br': None, 'sub': 3-x2-y2', 'y2', 'x2', '5-z2', 'z2', '12, 'sup': '2', 'YRCeAlScO\u2003\u2003(2)'}], 'a phosphor layer that includes a matrix and phosphor particles embedded in the matrix, wherein the phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2),'}{'sup': '1', 'sub': 1', '1', '1', '1', '1', '1, 'where, in the formula (1), Rincludes at least one selected from the group consisting of Gd and Tb, and x, y, and zsatisfy 0.003≤x≤0.03, 0≤y≤2.1, and 0≤z≤2.2, respectively and,'}{'sup': '2', 'sub': 2', '2', '2', '2', '2', '2, 'where, in the formula (2), Rincludes at least one selected from the group consisting of Gd and Tb, and x, y, and zsatisfy 0.003≤x≤0.03, 0≤y≤2.1 and 0≤z≤1.5, respectively.'}2. The light source device according to claim 1 , wherein{'sub': 1', '1, 'ysatisfies 0.1≤y≤2.1 in the formula (1), and'}{'sub': 2', '2, 'ysatisfies 0.1≤y≤2.1 in the formula (2).'}3. The light source device according to claim 1 , wherein{'sub': 1', '1, 'xsatisfies 0.003≤x≤0.024 in the formula (1), and'}{'sub': 2', '2, 'xsatisfies 0.003≤x≤0.024 in the formula (2).'}4. The light source device according to claim 1 , wherein the matrix includes a zinc oxide crystal oriented along a c-axis.5. The light source ...
Подробнее
