摘要:
A method for preparing a phosphor that comprises a crystalline oxide having M1O3 (M1 is a tetravalent metallic element) as a main backbone thereof and essentially including a halogen element X (X is at least one element selected from a group consisting of F, Cl, Br, and I) and divalent metal ions M2 and Eu2+, includes using a compound represented by a compositional formula NH4X as a starting material when synthesizing the phosphor. At least a compound represented by a compositional formula NH4Cl may be used as the starting material.
摘要:
A green light emitting phosphor and a light emitting device are provided. The green light emitting phosphor includes a composition represented by the formula Sr1.8-nMnEu0.2Si3O8.2SrCl2. M is at least one element selected from the group consisting of Ca, Ba, and Mg, and n is in a range of 0
摘要:
A phosphor is provided. The phosphor includes a composition represented by the formula: M1O2.aM2O.bM3X2:M4,where M1 is at least one element selected from the group consisting of Si, Ge, Ti, Zr, and Sn; M2 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; M3 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; X is at least one halogen element; M4 is at least one element essentially including Eu2+ selected from the group consisting of rare-earth elements and Mn; a is in the range of 0.1≦a≦1.3; and b is in the range of 0.1≦b≦0.25.
摘要翻译:提供荧光体。 磷光体包括由下式表示的组合:M 1 O 2 O 2 O 2 O 3 O 3 X M 2,其中M 1至少为选自Si,Ge,Ti,Zr和Sn中的至少一种元素 ; M 2是选自Mg,Ca,Sr,Ba和Zn中的至少一种元素; M 3是选自Mg,Ca,Sr,Ba和Zn中的至少一种元素; X是至少一个卤素元素; M 4是至少一种元素,其基本上包括选自稀土元素和Mn的Eu 2+, a在0.1 <= a <= 1.3的范围内; b在0.1≤b≤0.25的范围内。
摘要:
A phosphor includes a composition represented by the formula: (M2x, M3y, M4z)mM1O3X(2/n), wherein M1 is Si and may include at least one element selected Ge, Ti, Zr, and Sn; M2 is Ca and may include at least one element selected Mg, Ba, and Zn; M3 is Sr and may include at least one element selected from the group consisting of Mg, Ba, and Zn; X is at least one kind of halogen element; M4 is Eu2+ and may includes at least one element rare-earth elements and Mn, wherein m is in a range of 6/6≦m≦8/6; n is in a range of 5≦n≦7; and x, y, and z satisfies x+y+z=1, where 0
摘要:
A light emitting module using a light emitting phosphor having a high brightness and an excellent color rendering property in the case where it is used as a white light emitting module in place of a red light emitting phosphor, is provided. The light emitting module includes a semiconductor light emitting device having a light emitting peak wavelength from 350 to 420 nm, and a phosphor layer for emitting a light by a light transmitted from the semiconductor light emitting device to be an excitation light source. The phosphor layer includes an orange phosphor having at least an α type Ca pyrophosphate crystal structure represented by Ca2-X-Y-ZMXP2O7:EuY, MnZ, where M represents an alkali earth element other than Ca, and X≧0, Y>0 and Z>0.
摘要翻译:提供一种发光模块,其在使用其作为白色发光模块代替红色发光荧光体的情况下,具有高亮度和显色性优异的发光荧光体。 发光模块包括具有350至420nm的发光峰值波长的半导体发光器件和用于通过从半导体发光器件发射的光作为激发光源发光的荧光体层。 磷光体层包括橙色荧光体,其至少具有由Ca 2-XYZ M 2 P 2 O 2 O 2表示的至少α型焦磷酸钙晶体结构, 其中M表示除Ca以外的碱土金属元素,X> = 0,Y> 0和Z > 0。
摘要:
A light emitting device is provided. The light emitting device includes a light emitting element that emits ultraviolet light or short-wavelength visible light; and at least one phosphor that is excited by the ultraviolet light or short-wavelength visible light to emit visible light. The at least one phosphor includes a first phosphor including a composition represented by the formula: M1O2.aM2O.bM3X2:M4, where M1 is at least one element selected from the group consisting of Si, Ge, Ti, Zr, and Sn; M2 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; M3 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; X is at least one halogen element; M4 is at least one element essentially including Eu2+ selected from the group consisting of rare-earth elements and Mn; a is in the range of 0.1≦a≦1.3; and b is in the range of 0.1≦b≦0.25.
摘要:
According to one embodiment, a perpendicular magnetic recording medium including a soft magnetic under layer, a nonmagnetic seed layer consisting of AgGe, a nonmagnetic interlayer made of Ru or an Ru alloy, and a perpendicular magnetic recording layer, laminated on the nonmagnetic substrate is provided. The nonmagnetic seed layer is an layer containing Ag grains having an fcc structure and an amorphous Ge grain boundary, and the Ag grain surface is higher than the Ge grain boundary surface.
摘要:
In a printer that uses a roll paper being a printing medium, when a 2-inch roll paper is used, as a flange member coaxially fixed to each central portion of both ends of a paper tube of the roll paper in its axial direction, a flange member with a smaller outer diameter than that of the flange member used for a 3-inch roll paper is used.
摘要:
According to one embodiment, a release layer is formed on a magnetic recording layer, a mask layer is formed on the release layer, projecting patterns are formed on the mask layer, the projecting patterns are transferred onto the mask layer, the projecting patterns are transferred onto the release layer, the projecting patterns are transferred onto the magnetic recording layer, the release layer is removed by a solvent, and a remaining mask layer is removed from the surface of the magnetic recording layer. The release layer is made of a polymeric material. The mask layer is made of at least one of a metal or a metal compound. The projecting patterns are formed by using a self-organized layer made of a block copolymer having at least two of polymer chains.
摘要:
A paper feeding device includes: a bearing base to which a spool inserted into a paper roll, around which a paper is wound, is detachably attachable; a support including: a leading-end detection sensor to detect a leading end of the paper on the paper roll and output a sensor signal; and a roller disposed at a position in the support different from the leading-end detection sensor in a circumferential direction of the paper roll, to cause the leading-end detection sensor and the roller to contact a surface of the paper roll attached to the bearing base; and to cause the leading-end detection sensor and the roller to be directed toward an axial center of the spool; and a motor to rotate the spool in a feeding direction to feed the paper and in a reverse direction opposite to the feeding direction.