Method for preparing rare earth oxysulfide phosphor
    21.
    发明授权
    Method for preparing rare earth oxysulfide phosphor 失效
    制备稀土氧化磷光体的方法

    公开(公告)号:US5217647A

    公开(公告)日:1993-06-08

    申请号:US773881

    申请日:1991-10-31

    CPC classification number: C09K11/7789 C01F17/0093 C09K11/7771

    Abstract: The present invention relates to a method for preparing a rare earth oxysulfide phosphor which comprises baking a mixture containing a rare earth oxide and/or a rare earth compound which becomes a rare earth oxide easily at a high temperature a sulfiding agent and a flux, wherein a rare earth oxysulfide seed is added to the mixture before baking.

    Abstract translation: PCT No.PCT / JP91 / 00276 Sec。 371日期1991年10月31日 102(e)日期1991年10月31日PCT 1991年3月1日PCT公布。 出版物WO91 / 13124 1991年9月5日。本发明涉及一种稀土氧硫化物荧光体的制备方法,该方法包括在高温下容易地焙烧含有稀土氧化物和/或稀土化合物的稀土类化合物的混合物 硫化剂和助熔剂,其中在烘烤之前向混合物中加入稀土氧硫化物种子。

    Process for treating the surface of a fluorescent material
    22.
    发明授权
    Process for treating the surface of a fluorescent material 失效
    处理荧光材料表面的方法

    公开(公告)号:US5130190A

    公开(公告)日:1992-07-14

    申请号:US631441

    申请日:1990-12-21

    Applicant: Kim Woochan

    Inventor: Kim Woochan

    CPC classification number: C09K11/02 C09K11/025 Y10T428/259

    Abstract: There is provided a process for treating the surface of a fluorescent material comprising the steps of adding a suitable amount of water glass (K.sub.2 O.SiO.sub.2) to a dispersion of a fluorescent material, the mixture of the dispersion and water glass being stirred, adding silica particulates to the mixture, and finally adding a suitable amount of metal salt to the mixture containing the silica particulates, whereby the silica particulates adhere to the surface of the fluorescent material.

    Abstract translation: 提供了一种用于处理荧光材料表面的方法,包括以下步骤:向荧光材料的分散体中加入适量的水玻璃(K 2 O·SiO 2),搅拌分散体和水玻璃的混合物,加入二氧化硅 微粒,最后向含有二氧化硅微粒的混合物中加入适量的金属盐,由此使二氧化硅微粒附着在荧光体的表面。

    Cathode ray tube having multilayer interference filter
    23.
    发明授权
    Cathode ray tube having multilayer interference filter 失效
    具有多层干涉滤波器的阴极射线管

    公开(公告)号:US5068568A

    公开(公告)日:1991-11-26

    申请号:US524718

    申请日:1990-05-15

    CPC classification number: H01J29/20 H01J29/185 H01J29/24 H01J29/28

    Abstract: A cathode ray tube, such as a projection cathode ray tube, having a multilayer interference filter disposed between the cathodoluminescent screen and the interior side of the faceplate, the interference filter comprising alternate layers having high (H) and low (L) refractive indices, the high refractive index material being niobium pentoxide and the low refractive index material being either silicon oxide or magnesium fluoride. These filters are substantially free from the crazing which occurs in known filters when subjected to the normal thermal processing of cathode ray tubes.

    Abstract translation: 一种阴极射线管,例如投影阴极射线管,其具有设置在阴极发光屏和面板内侧之间的多层干涉滤光器,干涉滤光片包括具有高(H)和低(L)折射率的交替层, 高折射率材料是五氧化二铌,低折射率材料是氧化硅或氟化镁。 这些过滤器基本上没有在经受阴极射线管的正常热处理时在已知过滤器中发生的裂纹。

    Circuit for stabilizing high voltage according to the change of
horizontal oscillating frequency
    25.
    发明授权
    Circuit for stabilizing high voltage according to the change of horizontal oscillating frequency 失效
    根据水平振荡频率的变化稳定高压电路

    公开(公告)号:US5049792A

    公开(公告)日:1991-09-17

    申请号:US536784

    申请日:1990-06-12

    Applicant: Changseog Oh

    Inventor: Changseog Oh

    CPC classification number: H04N3/185 H04N3/27

    Abstract: There is disclosed a circuit for stablizing the high voltage of the high voltage generating circuit in a CRT according to the change of the horizontal oscillating frequency, comprising a diode, the cathode of said diode being connected to the intermediate terminal of a flyback transformer (FBT), the anode of said diode being connected to first resistor and a variable resistor, a first transistor, the base of the said first transistor being connected to the intermediate terminal of said variable resistor, a second transistor, a third transistor, the collector of said first transistor being connected through a grounded second resistor to the base of said third transistor, the collector of said third transistor being connected to the base of said second transistor, the collector of said second transistor being connected to a direct current source, and a fourth transistor, the emitter of said second transistor being connected through the primary coil of said flyback transformer to the collector of said fourth transistor, the base of said fourth transistor being connected to a horizontal oscillating circuit.

    Abstract translation: 公开了一种用于根据水平振荡频率的变化稳定CRT中的高压发生电路的高电压的电路,其包括二极管,所述二极管的阴极连接到回扫变压器(FBT)的中间端子 ),所述二极管的阳极连接到第一电阻器和可变电阻器,第一晶体管,所述第一晶体管的基极连接到所述可变电阻器的中间端子,第二晶体管,第三晶体管,第三晶体管, 所述第一晶体管通过接地的第二电阻器连接到所述第三晶体管的基极,所述第三晶体管的集电极连接到所述第二晶体管的基极,所述第二晶体管的集电极连接到直流源, 第四晶体管,所述第二晶体管的发射极通过所述回扫变压器的初级线圈连接到所述coll 所述第四晶体管的基极,所述第四晶体管的基极连接到水平振荡电路。

    Projection cathode-ray tube with green emitting phosphor screen
    27.
    发明授权
    Projection cathode-ray tube with green emitting phosphor screen 失效
    投影阴极射线管与绿色荧光屏

    公开(公告)号:US4924139A

    公开(公告)日:1990-05-08

    申请号:US209936

    申请日:1988-06-22

    CPC classification number: H01J29/187 C09K11/595 C09K11/7755 C09K11/7774

    Abstract: This invention relates to a phosphor prepared by mixing a green emitting phosphor InBO.sub.3 :Tb having an excellent color tone with other green emitting phosphors having a short decay time such as Y.sub.3 Al.sub.5-m Ga.sub.m O.sub.12 :Tb in amounts such that the "decay time to 10% of peak brightness" measured by a raster spot method is below 10 ms. The phosphor screen of a projection cathode-ray tube is formed by use of this phosphor. The projection cathode-ray tube thus produced has an excellent color tone and a short decay time.

    Abstract translation: 本发明涉及通过将具有优异色调的绿色发光荧光体InBO 3:Tb与其它具有短衰减时间的绿色发光荧光体(例如Y3Al5-mGamO12:Tb)混合制成的荧光粉,其量使得“衰减时间为10% 通过光栅点法测量的峰值亮度低于10 ms。 投影阴极射线管的荧光屏通过使用该荧光体形成。 这样制造的投影阴极射线管具有优异的色调和短的衰减时间。

    Process for imparting stir-in capabilities to a silver activated zinc
sulfide phosphor
    28.
    发明授权
    Process for imparting stir-in capabilities to a silver activated zinc sulfide phosphor 失效
    向银活化的硫化锌荧光体施加搅拌能力的方法

    公开(公告)号:US4859497A

    公开(公告)日:1989-08-22

    申请号:US185591

    申请日:1988-04-25

    CPC classification number: C09K11/584 C09K11/02 C09K11/025

    Abstract: A process is disclosed for pigmenting and coating a silver activated zinc sulfide phosphor and for imparting stir-in capabilities to the phosphor. The process comprises deagglomerating the phosphor, forming an aqueous slurry of phosphor particles, pigment particles, a binding agent which can be latex polymers or copolymers, the binding agent having a glass transition temperature of greater than about 20.degree. C. and a silica-based compound to produce a silica based coating on the phosphor particles, and agitating the slurry, separating the solids from the resulting liquor, and drying the solids at a temperature above the Minimum Film Formation Temperature of the latex to produce the phosphor particles wherein the pigment particles are bonded to them and wherein the pigmented phosphor particles are coated with the silica-based coating. The process comprises also pigmenting the phosphor and imparting stir-in capabilities thereto by the process as described above without adding the coating agent to the slurry. The process comprises also coating the phosphor and imparting stir in capabilities thereto by the above process without the pigments and binding agent.

    Cerium and terbium activated luminescent material and mercury vapor
discharge lamp containing the same
    29.
    发明授权
    Cerium and terbium activated luminescent material and mercury vapor discharge lamp containing the same 失效
    铈和铽激活的发光材料和含有相同的汞蒸气放电灯

    公开(公告)号:US4837481A

    公开(公告)日:1989-06-06

    申请号:US741201

    申请日:1985-06-04

    CPC classification number: C09K11/08 C09K11/0838

    Abstract: A luminescent screen provided with a luminescent material having the hexagonal crystal structure, which material is an aluminate, a gallate or an aluminate gallate. The crystal structure of the luminescent material corresponds to that of at least one of the compounds .beta.-aluminium, .beta."-alumina and the hexagonal ferrites. The luminescent material is activated by at least one of the elements manganese, europium, lead, thallium, cerium, indium, terbium, dysprosium and bismuth and is a ternary compound whose composition can be represented in the ternary phase diagram ABC in which A represents at least one of the oxides 1/4Na.sub.2 O, 1/2K.sub.2 O, 1/2Rb.sub.2 O, 1/2Cs.sub.2 O, CaO, SrO, BaO, 1/2La.sub.2 O.sub.3, 1/2Ce.sub.2 O.sub.3, 1/2Tb.sub.2 O.sub.3, 1/2Dy.sub.2 O.sub.3, 1/2Bi.sub.2 O.sub.3, EuO, PbO, 1/2Tl.sub.2 O and 1/2In.sub.2 O, in which B represents at least one of the oxides Al.sub.2 O.sub.3 and Ga.sub.2 O.sub.3 in which up to 25 mol. % of the oxides denoted by B may be replaced by Sc.sub.2 O.sub. 3 and in which C represents at least one of the oxides MgO, ZnO, BeO, 1/2LiAlO.sub.2 and 1/2LiGaO.sub.2. The content of A is more than zero and less than that of B and the content of C is more than zero and less than 0.6

    Abstract translation: 具有六方晶体结构的发光材料的发光屏,该材料是铝酸盐,没食子酸酯或无酸铝酸铝。 发光材料的晶体结构对应于β-铝,β“ - 氧化铝和六方晶系铁氧体中的至少一种化合物的晶体结构。 发光材料由锰,铕,铅,铊,铈,铟,铽,镝和铋中的至少一种元素活化,并且是三元化合物,其组成可以在三元相图ABC中表示,其中A表示在 氧化物1 / 4Na2O,1 / 2K2O,1 / 2Rb2O,1 / 2Cs2O,CaO,SrO,BaO,1 / 2La2O3,1 / 2Ce2O3,1 / 2Tb2O3,1 / 2Dy2O3,1 / 2Bi2O3,EuO,PbO中的至少一种 ,1 / 2Tl2O和1 / 2In2O,其中B表示氧化物Al2O3和Ga2O3中至少一种,其中至多25mol。 由B表示的氧化物的%可以由Sc 2 O 3代替,其中C表示氧化物MgO,ZnO,BeO,1 / 2LiAlO 2和1 / 2LiGaO 2中的至少一种。 A的含量大于零,小于B的含量,C的含量大于零且小于0。

    Electron beam pumped laser
    30.
    发明授权
    Electron beam pumped laser 失效
    电子束泵浦激光器

    公开(公告)号:US4807241A

    公开(公告)日:1989-02-21

    申请号:US71850

    申请日:1987-07-10

    Abstract: The luminescent screen of a cathode ray tube includes an array of monocrystalline or amorphous phosphor rod-like elements which are covered with a reflective coating except for one end of each element which serves as an output face. The phenomenon of the light trapping is advantageously exploited to achieve enhanced brightness. The screen is illuminated with an electron beam which has an essentially oblong cross section and which is oriented along the elongated dimension of the elements. In one embodiment the elements comprise epitaxial Lu.sub.3 Al.sub.3 Ga.sub.2 O.sub.12 :Ce on the top of a YAG substrate, and a light absorbing layer of Lu.sub.3 Al.sub.3.5 Fe.sub.1.5 O.sub.12 is formed on the bottom of the substrate. A printer utilizing such a CRT is described. Also described is a configuration in which each of the rod-like elements functions as a laser.

    Abstract translation: 阴极射线管的荧光屏包括单晶或非晶磷棒状元件的阵列,除了用作输出面的每个元件的一端之外,该阵列被反射涂层覆盖。 有利地利用光捕获的现象来实现增强的亮度。 屏幕被电子束照射,该电子束具有基本上长方形的横截面并且沿着元件的细长尺寸定向。 在一个实施例中,元件包括在YAG衬底的顶部上的外延Lu3Al3Ga2O12:Ce,并且在衬底的底部上形成Lu3Al3.5Fe1.5O12的光吸收层。 描述了利用这种CRT的打印机。 还描述了其中每个棒状元件用作激光器的配置。

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