Device for providing electromagnetic radiation
    2.
    发明申请
    Device for providing electromagnetic radiation 有权
    用于提供电磁辐射的装置

    公开(公告)号:US20150204492A1

    公开(公告)日:2015-07-23

    申请号:US14418088

    申请日:2013-06-14

    Applicant: OSRAM GmbH

    Abstract: Various embodiments may relate to a device for providing electromagnetic radiation, including a radiation assembly for generating excitation radiation, and at least one conversion element for generating conversion radiation, which has at least one first phosphor and which is arranged at a distance to the radiation assembly in a beam path of the excitation radiation. As the first phosphor, a nitridosilicate of the type M2Si5N8:D is used, wherein D=activator and wherein M is selected from the group barium, strontium, calcium alone or in combination, wherein the mean grain size d50 of the phosphor is at least 10 μm.

    Abstract translation: 各种实施例可以涉及用于提供电磁辐射的装置,包括用于产生激发辐射的辐射组件,以及用于产生转换辐射的至少一个转换元件,该转换辐射具有至少一个第一磷光体,并且被布置在与辐射组件一定距离处 在激发辐射的光束路径中。 作为第一荧光体,使用M2Si5N8:D型的氮化硅酸盐,其中D =活化剂,其中M选自钡,锶,钙单独或组合,其中磷光体的平均晶粒尺寸d50至少为 10μm。

    Phosphor particles with a protective layer, and method for producing the phosphor particles with the protective layer

    公开(公告)号:US10738238B2

    公开(公告)日:2020-08-11

    申请号:US15556279

    申请日:2016-03-01

    Abstract: Phospher particles with a Protective Layer and a method for producing phosphor particles with a protective layer are disclosed. In an embodiment the method includes treating Si-containing and/or Al-containing phosphor with an acid solution, wherein a pH value of the acid solution is maintained within a range of pH 3.5 to pH 7 for a period of at least 1 h, wherein an Si-containing layer is formed on the phosphor particles, wherein the Si-containing layer has a higher content of Si on a surface than the phosphor particles, and/or wherein an Al-containing layer is formed on the phosphor particles, wherein the Al-containing layer has a modified content of aluminum on the surface than the phosphor particles and tempering the treated phosphor particles at a temperature of at least 100° C. thereby producing the protective layer.

    Phosphor Particles with a Protective Layer, and Method for Producing the Phosphor Particles with the Protective Layer

    公开(公告)号:US20200332182A1

    公开(公告)日:2020-10-22

    申请号:US16911050

    申请日:2020-06-24

    Abstract: Phospher particles with a Protective Layer and a method for producing phosphor particles with a protective layer are disclosed. In an embodiment the method includes treating Si-containing and/or Al-containing phosphor with an acid solution, wherein a pH value of the acid solution is maintained within a range of pH 3.5 to pH 7 for a period of at least 1 h, wherein an Si-containing layer is formed on the phosphor particles, wherein the Si-containing layer has a higher content of Si on a surface than the phosphor particles, and/or wherein an Al-containing layer is formed on the phosphor particles, wherein the Al-containing layer has a modified content of aluminum on the surface than the phosphor particles and tempering the treated phosphor particles at a temperature of at least 100° C. thereby producing the protective layer.

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