Method of preparing an ultravioletemitting phosphor
    1.
    发明授权
    Method of preparing an ultravioletemitting phosphor 失效
    制备超声波磷光体的方法

    公开(公告)号:US3766084A

    公开(公告)日:1973-10-16

    申请号:US3766084D

    申请日:1971-08-16

    CPC classification number: C09K11/666

    Abstract: AN ULTRAVIOLET-EMITTING CATHODOLUMINESCENT PHOSPHOR COMPRISING SR2ZNSI2O7:PB (0.6% TO 1.0% MOLAR) WHEREIN PB SUBSTITUTES IN PART FOR SR AND ZN IS PREPARED BY HEATING IN POWDER FORM A MIXTURE OF SILICON DIOXIDE, STRONTIUM CARBONATE, STRONTIUM FLUORIDE, ZINC OXIDE AND LEAD OXIDE IN AN ATMOSPHERE OF FLOWING AIR AND STEAM AT A TEMPERATURE IN THE RANGE OF ABOUT 1275*C. TO 1325*C. THE RESULTING MATERIAL, IN WHICH LEAD ACTS AS AN ACTIVATOR, GIVES RADIANT ULTRAVIOLET OUTPUTS APPROACHING 1 KILOWATT/ CM.2 AT 2.5% EFFICIENCY UNDER EXTREMELY HIGH CURRENT DENSITY EXCITATION IN VERY HIGH RESOLUTION CATHODE-RAY TUBES.

    Resolution improvement for optical scanners
    2.
    发明授权
    Resolution improvement for optical scanners 失效
    光学扫描仪的解决方案改进

    公开(公告)号:US3746840A

    公开(公告)日:1973-07-17

    申请号:US3746840D

    申请日:1970-07-02

    Inventor: OGLAND J MALARKEY E

    Abstract: A device providing high resolution readout of information stored on a film. A slit equal in width to the desired spot size diameter is placed in front of a moving film. A fiber optics strip is placed in back of the film in line with the slit. A beam of light scans across the slit. The fiber optics strip is comprised of a plurality of optic fibers. The width of each fiber is also equal to the desired spot size diameter. All of the optic fibers are connected to a small group of photodetectors. The fibers and the detectors are arranged in such a manner that no one detector will receive information from more than one fiber at any one time as the beam scans across the slit.

    Abstract translation: 提供存储在胶片上的信息的高分辨率读出的装置。 将宽度等于所需光斑尺寸直径的狭缝放置在移动胶片的前面。 将光纤条放置在与狭缝一致的膜的背面。 一束光线穿过狭缝扫描。 光纤条带由多条光纤组成。 每个纤维的宽度也等于所需的光斑尺寸直径。 所有的光纤都连接到一小组光电检测器。 光纤和检测器被布置成使得当光束扫过狭缝时,任何一个检测器都不会在任何一个时间从多于一根光纤接收信息。

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