Long persistence red phosphors
    33.
    发明授权
    Long persistence red phosphors 有权
    长持久性红色荧光粉

    公开(公告)号:US6099754A

    公开(公告)日:2000-08-08

    申请号:US259661

    申请日:1999-02-26

    申请人: Perry Niel Yocom

    发明人: Perry Niel Yocom

    摘要: Long persistence red phosphors of alkaline earth metal phosphates, alkaline earth magnesium silicates and alkaline earth magnesium di-silicates are doubly activated with europium and manganese and contain a trivalent or quadrivalent thermal trapping agent. The thermal trapping cation feeds thermal energy to the europium ion which in turn feeds the energy to the manganese ion that emits in the red region of the spectrum.

    摘要翻译: 碱土金属磷酸盐,碱土金属硅酸镁和碱土金属二硅酸盐的长余辉红色磷光体用铕和锰双重活化并含有三价或四价热捕获剂。 热捕获阳离子将热能馈送到铕离子,铕离子又将能量馈送到在光谱的红色区域中发射的锰离子。

    Fluorescent lamp
    34.
    发明授权
    Fluorescent lamp 失效
    日光灯

    公开(公告)号:US4527087A

    公开(公告)日:1985-07-02

    申请号:US413242

    申请日:1982-08-30

    IPC分类号: C09K11/71 C09K11/77 H01J61/44

    摘要: Disclosed is a fluorescent lamp which comprises a mixture of a phosphor (i) comprising an alkaline earth metal halophosphate phosphor activated with divalent europium, represented by the general formula:M.sub.5-x X(PO.sub.4).sub.3 :Eu.sup.2+ (x)wherein M consists of Ba, Ca and Mg, containing 3 to 4.5 gram-atom of Ba, 0.5 to 2 gram-atom of Ca and 0.01 to 1 gram-atom of Mg each; X is one or more of F, Cl or Br; and 0.01

    摘要翻译: 公开了一种荧光灯,其包含由以下通式表示的由通式M5-xX(PO4)3:Eu2 +(x)表示的由二价铕活化的碱土金属卤化磷酸盐荧光体的荧光体(i)的混合物,其中M由Ba 含有3〜4.5克原子的Ba,0.5〜2克原子Ca和0.01〜1克原子的Mg的Ca和Mg, X是F,Cl或Br中的一种或多种; 和0.01

    Phosphor with extended fluorescence decay lifetime and lamp based thereon
    35.
    发明授权
    Phosphor with extended fluorescence decay lifetime and lamp based thereon 失效
    具有延长的荧光衰减寿命的荧光体和基于其的灯

    公开(公告)号:US4306173A

    公开(公告)日:1981-12-15

    申请号:US135951

    申请日:1980-03-31

    IPC分类号: C09K11/71 H01J61/44 C09K11/08

    CPC分类号: H01J61/44 C09K11/71

    摘要: A luminescent phosphor composition having enhanced luminescent decay lifetime consists essentially of a non-stoichiometric tin and manganese coactivated alkaline earth orthophosphate represented by the formulaSr.sub.(3-v-w-x-y-z) .quadrature..sub.v Mg.sub.w Ca.sub.x (PO.sub.2).sub.4 :Sn.sub.y Mn.sub.zwhere0.001.ltoreq.v.ltoreq.0.050.180.ltoreq.w.ltoreq.0.350.ltoreq.x.ltoreq.0.080.015.ltoreq.y.ltoreq.0.050.0005.ltoreq.z.ltoreq.0.0905.An improved fluorescent lamp employing the disclosed phosphor is also described.

    摘要翻译: 具有增强的发光衰变寿命的发光荧光体组合物基本上由公式Sr(3-vwxyz)&squ&vMgwCax(PO2)4:SnyMnz表示的非化学计量的锡和锰共活化的碱土金属正磷酸盐组成,其中0.001

    Process of preparing calcium hydrogen phosphate anhydride suitable as
material for phosphors
    38.
    发明授权
    Process of preparing calcium hydrogen phosphate anhydride suitable as material for phosphors 失效
    适合作为磷光体材料的磷酸氢钙磷酸盐的制备方法

    公开(公告)号:US4203955A

    公开(公告)日:1980-05-20

    申请号:US931902

    申请日:1978-08-08

    IPC分类号: C01B25/32 C09K11/71

    CPC分类号: C09K11/71 C01B25/32

    摘要: A process of preparing calcium hydrogen phosphate anhydride suitable as a raw material for phosphate phosphors, wherein CaHPO.sub.4.2H.sub.2 O is precipitated by mixing aqueous solutions of NaNH.sub.4 HPO.sub.4.4H.sub.2 O and CaCl.sub.2.6H.sub.2 O at 5.degree.-40.degree. C. An entire quantity of CaHPO.sub.4.2H.sub.2 O to be converted to CaHPO.sub.4 in one batch is put into an acidified water maintained above 80.degree. C. all at once. Crystalline CaHPO.sub.4 is obtained through agitation of a resultant hot slurry for a few minutes. Crystal habit of the product depends on the pH of the hot water: lozenge-shaped plates when the pH is below 3.4, parallelogram plates in the pH range of 3.4-4.4, and square or rectangular plates when the pH is above 4.4. The particle size of CaHPO.sub.4 depends on the water temperature and the degree of agitation. To precipitate CaHPO.sub.4.2H.sub.2 O in the presence of suitable quantity of seed crystals is effective for minimizing the Na content of CaHPO.sub.4.

    摘要翻译: 制备适合磷酸盐磷光体的磷酸氢钙酸酐的方法,其中通过在5°-40℃下混合NaNH 4 HPO 4·4H 2 O和CaCl 2·6H 2 O的水溶液使CaHPO 4·2H 2 O沉淀。将全部量的CaHPO 4·2H 2 O 一次性转化为CaHPO4,一次放入保持在80℃以上的酸化水中。 通过搅拌所得热浆料几分钟获得结晶CaHPO 4。 产品的水晶习惯取决于热水的pH值:当pH值低于3.4时,菱形板,平均四边形板在pH4.4-4.4的范围内,当pH值高于4.4时,方板或矩形板。 CaHPO4的粒径取决于水温和搅拌程度。 在合适量的晶种存在下沉淀CaHPO 4·2H 2 O是有效的,以使CaHPO 4的Na含量最小化。

    Color-corrected high-pressure mercury-vapor lamp
    40.
    发明授权
    Color-corrected high-pressure mercury-vapor lamp 失效
    彩色校正高压汞蒸气灯

    公开(公告)号:US3670194A

    公开(公告)日:1972-06-13

    申请号:US3670194D

    申请日:1971-01-26

    摘要: Color-corrected high-pressure mercury-vapor lamp provides good color rendition of illuminated objects, and especially good color rendition of flesh tones. The lamp utilizes a particular phosphor coating principally comprising a two-component blend. One of the phosphor blend components provides an emission in the shorter wavelength region of the visible spectrum peaking at from 440 nm to 470 nm, and an example of this component is a strontium chlorophosphate having an apatite structure and activated by a divalent europium. The other phosphor component provides an emission in the longer wavelength region of the visible spectrum peaking at from 605 nm to 630 nm, and an example of this phosphor component is yttrium phosphate-vanadate activated by tervalent europium. For the foregoing examples, the relative weight ratio of the one phosphor component to the other phosphor component is from 0.05:1 to 0.4:1.

    摘要翻译: 色彩校正的高压汞蒸汽灯提供了照明物体的良好的颜色再现,并且特别是良好的肤色色调。 该灯采用主要包含双组分共混物的特定磷光体涂层。 荧光体共混物组分之一提供在440nm至470nm峰值的可见光谱的较短波长区域中的发射,并且该组分的实例是具有磷灰石结构并由二价铕激活的氯磷酸锶。 另一种荧光体组分在可见光谱的较长波长区域提供峰值峰值在605nm至630nm的发射,并且该荧光体组分的实例是由三价铕激活的磷酸钇钒酸盐。 对于前述实施例,一种荧光体组分与另一种荧光体组分的相对重量比为0.05:1至0.4:1。