Alkaline earth aluminate phosphor for a cold cathode fluorescent lamp and cold cathode fluorescent lamp
    1.
    发明授权
    Alkaline earth aluminate phosphor for a cold cathode fluorescent lamp and cold cathode fluorescent lamp 有权
    用于冷阴极荧光灯和冷阴极荧光灯的碱土铝酸盐荧光粉

    公开(公告)号:US07492083B2

    公开(公告)日:2009-02-17

    申请号:US10901152

    申请日:2004-07-29

    申请人: Reiji Otsuka

    发明人: Reiji Otsuka

    IPC分类号: H01J63/04

    CPC分类号: H01J61/44 C09K11/7734

    摘要: An alkaline earth aluminate phosphor for a cold cathode fluorescent lamp, which is represented by the compositional formula a (P1-xEux)O.(Q1-yMny)O.bAl2O3 and which is characterized by emitting light when irradiated with ultraviolet rays having a wavelength of from 180 to 300 nm (provided that in the above formula, P represents at least one alkaline earth metal element selected from Ba, Sr and Ca, Q represents at least one bivalent metal element selected from Mg and Zn, and a, b, x and y represent numbers which satisfy 0.8≦a≦1.2, 4.5≦b≦5.5, 0.05≦x≦0.25 and 0.2≦y≦0.4, respectively).

    摘要翻译: 一种用于冷阴极荧光灯的碱土铝酸盐荧光体,其由组成式a(P1-xEux)O.(Q1-yMny)O.bAl2O3表示,其特征在于当用具有波长的紫外线照射时发光 为180〜300nm(式中,P表示选自Ba,Sr,Ca中的至少1种碱土类金属元素,Q表示选自Mg,Zn的2种以上的2价金属元素,a,b, x和y分别表示满足0.8 <= a <= 1.2,4.5 <= b <= 5.5,0.05 <= x <= 0.25和0.2 <= y <= 0.4的数值。

    Phosphor and its production process
    2.
    发明申请
    Phosphor and its production process 失效
    荧光粉及其生产工艺

    公开(公告)号:US20040144956A1

    公开(公告)日:2004-07-29

    申请号:US10701449

    申请日:2003-11-06

    IPC分类号: C09K011/08 C09K011/54

    CPC分类号: C09K11/08

    摘要: The present invention is to provide a phosphor of minimum particle size having an excellent crystallinity and a high brightness higher than conventional crude particles, which is usable for a highly precise display, a highly bright illuminating element or illuminating apparatus, a high speed immunoassay system or the like, i.e. a phosphor having a substantially spherical outer shape, which comprises primary particles having a median diameter D50 in a range of from 0.05 nullm to 1 nullm and secondary particles having a median diameter D50 in a range of from 0.1 nullm to 2 nullm, wherein at least 50 vol % of the total secondary particles has an aspect ratio of at least 0.8 and an internal quantum efficiency is in a range of from 0.8 to 1.

    Phosphor and its production process
    3.
    发明申请
    Phosphor and its production process 失效
    荧光粉及其生产工艺

    公开(公告)号:US20030094596A1

    公开(公告)日:2003-05-22

    申请号:US10325826

    申请日:2002-12-23

    IPC分类号: C09K011/08

    CPC分类号: C09K11/08

    摘要: A process for producing fine phosphor particles having a high crystallinity, having a small amount of aggregated particles and comprising fine particles, thus capable of forming a homogeneous and dense high brightness fluorescent layer when applied to e.g. a cathode ray tube, a fluorescent lamp or PDP, and having a high purity, a uniform chemical composition and excellent emission properties, at a low cost, is provided. A process for producing a phosphor, which comprises heating droplets of a solution containing metal elements constituting the phosphor to carry out pyrolysis to obtain the phosphor, wherein the above heating is carried out in the coexistence of an additive comprising a metal or a metal compound to carry out the pyrolysis at an average crystal growth rate of at least 0.002 nullm3/sec.

    摘要翻译: 一种生产具有高结晶度的细磷光体颗粒的方法,具有少量的聚集颗粒并且包含细颗粒,因此当应用于例如荧光体颗粒时能够形成均匀且致密的高亮度荧光层。 阴极射线管,荧光灯或PDP,并且具有高纯度,均匀的化学组成和优异的发射特性。 一种荧光体的制造方法,其特征在于,包括加热含有构成所述荧光体的金属元素的溶液的液滴,进行热分解以获得所述荧光体,其中上述加热是在包含金属或金属化合物的添加剂共存的情况下进行的 以至少0.002mum3 / sec的平均晶体生长速率进行热解。

    Reed valve for a pump
    4.
    发明授权
    Reed valve for a pump 失效
    泵的簧片阀

    公开(公告)号:US6116866A

    公开(公告)日:2000-09-12

    申请号:US12912

    申请日:1998-01-23

    摘要: A reed valve is disclosed for use with a pump having a casing. A check valve unit is provided within the casing for preventing counterflow of fluids to be carried. A suction port communicates with a suction line into which the fluids to be carried flow, and a discharge port communicates with discharge line from which the fluids to be carried out are discharged. Reed valves are mounted on the suction port and on the discharge port of the check valve, respectively, in such a manner that the reed valves cover the suction port and the discharge port so as to be able to open and close. Each reed valve includes a first reed valve and second reed valve. The first reed valve is made of pliable material, and is formed to have a size capable of covering the entire respective suction port and discharge port. The second reed valve is smaller than first reed valve and is superposed on the first reed valve to engage the first reed valve such that the first reed valve can open and close, while enhancing sealability thereof.

    摘要翻译: 公开了一种与具有壳体的泵一起使用的簧片阀。 在壳体内设有一个止回阀单元,用于防止待运输流体逆流。 吸入口与被输送流体流入的吸入管路连通,排出口与排出流体的排出管路连通。 簧片阀分别安装在止回阀的吸入口和排出口上,使得簧片阀覆盖吸入口和排出口以便能够打开和关闭。 每个簧片阀包括第一簧片阀和第二簧片阀。 第一个簧片阀由柔软的材料制成,并且形成为能够覆盖整个相应吸入口和排出口的尺寸。 第二簧片阀小于第一簧片阀,并且叠置在第一簧片阀上以接合第一簧片阀,使得第一簧片阀可以打开和关闭,同时提高其密封性。

    Phosphor and ultraviolet ray excited fluorescent tube employing it
    5.
    发明授权
    Phosphor and ultraviolet ray excited fluorescent tube employing it 失效
    使用荧光粉和紫外线激发荧光灯管

    公开(公告)号:US5231328A

    公开(公告)日:1993-07-27

    申请号:US899157

    申请日:1992-06-15

    IPC分类号: C09K11/77 H01J61/44

    CPC分类号: H01J61/44 C09K11/774

    摘要: A bivalent europium-activated alkaline earth haloborate phosphor which contains lithium as coactivator, a process for its production, and an ultraviolet ray excited fluorescent tube such as a fluorescent lamp having a fluorescent layer containing such a phosphor as the blue-emitting component.

    摘要翻译: 含有锂作为共激活剂的二价铕活化碱土金属卤硼酸盐荧光体,其制造方法,以及荧光灯等紫外线激发荧光管,其荧光层含有蓝色发光成分的荧光体。

    Method for obtaining a radiation image
    7.
    发明授权
    Method for obtaining a radiation image 失效
    获得辐射图像的方法

    公开(公告)号:US4889996A

    公开(公告)日:1989-12-26

    申请号:US881522

    申请日:1986-06-30

    IPC分类号: C09K11/77

    摘要: A radiation image storage panel for obtaining a radiation image of an object by causing said panel to absorb a radiation transmitted through said object and then exposing the panel to light of wavelength ranging from 450 to 800 nm to cause the panel to release radiation energy stored therein as fluorescent light, said panel having a fluorescent layer of a rare earth element activated complex halide stimulable phosphor represented by the formulaBaF.sub.2.aBaX.sub.2.bMe.sup.I F.cMe.sup.II F.sub.2.dMe.sup.III F.sub.3 :eLnwherein X is at least one halogen selected from the group consisting of chlorine, bromine and iodine, Me.sup.I is at least one alkali metal selected from the group consisting of lithium and sodium, Me.sup.II is at least one divalent metal selected from the group consisting of beryllium, calcium and strontium, Me.sup.III is at least one trivalent metal selected from the group consisting of aluminum, gallium, yttrium and lanthanum, Ln is at least one rare earth element selected from the group consisting of divalent europium (Eu.sup.2+), cerium and terbium, and a, b, c, d and e are numbers satisfying the conditions of 0.90.ltoreq.a.ltoreq.1.05, 0.ltoreq.b.ltoreq.0.9, 0.ltoreq.c.ltoreq.1.2, 0.ltoreq.d.ltoreq.0.03, 10.sup.-6 .ltoreq.e.ltoreq.0.03 and b+d.noteq.0, respectively. A radiation image storage panel is produced by depositing on a support a fluorescent layer of the above-mentioned phosphor. The radiation image storage panel of this invention has higher sensitivity than the conventional radiation image storage panel having a phosphor layer of the conventional rare earth element activated divalent metal fluorohalide phosphor.

    Radiographic intensifying screen
    8.
    发明授权
    Radiographic intensifying screen 失效
    射线增强屏

    公开(公告)号:US4839243A

    公开(公告)日:1989-06-13

    申请号:US217984

    申请日:1988-07-12

    IPC分类号: C09K11/77 C09K11/84 G21K4/00

    摘要: A radiographic intensifying screen comprising a support and a fluorescent layer formed thereon, said fluorescent layer consisting essentially of at least one terbium-activated rare earth oxysulfide phosphor of the formula:(Ln.sub.1-x-y, Tb.sub.x, A.sub.y).sub.2 O.sub.2 S (I)wherein Ln is at least one element selected from the group consisting of Y, La, Gd and Lu, A is at least one element selected from the group consisting of Ce, Pr, Nd, Dy, Er and Tm, and x and y are numbers within the ranges of 0.002.ltoreq.x.ltoreq.0.20 and 0.ltoreq.y.ltoreq.0.01, respectively, and at least one terbium-activated rare earth tantalate complex oxide phosphor of the formula:(Ln'.sub.1-z, Tb.sub.z).sub.2 O.sub.3.mTa.sub.2 O.sub.5.nB.sub.2 O.sub.3 (II)wherein Ln' is at least one element selected from the group consisting of Y, La, Gd and Lu, and z, m and n are numbers within the ranges of 0.0001.ltoreq.z.ltoreq.0.1, 0.95.ltoreq.m.ltoreq.1.05 and 0.ltoreq.n.ltoreq.5.0, respectively.

    Process for recovering highly pure rare earth oxides from a waste rare
earth phosphor
    9.
    发明授权
    Process for recovering highly pure rare earth oxides from a waste rare earth phosphor 失效
    用于从废稀土荧光粉中回收高纯度稀土氧化物的方法

    公开(公告)号:US4650652A

    公开(公告)日:1987-03-17

    申请号:US694282

    申请日:1985-01-24

    摘要: A process for recovering highly pure rare earth oxides from a waste rare earth phosphor containing at least Fe and/or Ca as impurities, which comprises dissolving the waste rare earth phosphor in an excess amount of a strong acid capable of dissolving the waste rare earth phosphor, adding to the solution at a temperature of at least 70.degree. C. oxalic acid in an amount of from 0.3 to 1.8 times the theoretical amount to obtain precipitates of rare earth oxalates, washing the precipitates with warm water having a temperature of at least 50.degree. C. and then baking them.

    摘要翻译: 一种从至少含有Fe和/或Ca作为杂质的废稀土荧光体中回收高纯度稀土氧化物的方法,包括将废稀土荧光粉溶解在过量的能够溶解废稀土荧光体的强酸中 在理论量的0.3〜1.8倍的温度下,在至少70℃的草酸的温度下向该溶液中加入,得到稀土草酸盐的析出物,用温度为50℃以上的温水洗涤沉淀物 然后烘烤它们。