Underwater laser imaging apparatus
    1.
    发明授权
    Underwater laser imaging apparatus 失效
    水下激光成像装置

    公开(公告)号:US06115511A

    公开(公告)日:2000-09-05

    申请号:US958564

    申请日:1997-10-27

    IPC分类号: G01S17/89 G06K9/20

    CPC分类号: G01S17/89

    摘要: A simulation method for imaging of an underwater object is performed by simulating the object with a test panel having several strips of different brightness, and irradiating the test panel with a pulsed laser beam having three primary colors. From the reflected beam pulses, contrast values of the test stripes are computed for reflected pulses of each color in relation to the turbidity and visibility distance. The method may be used in conjunction with an imaging apparatus having a laser generation device which produces three primary colors of three different wavelengths; a laser beam detection device to receive the reflected beam pulses of respective primary colors, to determine intensities of the reflected beam pulses of respective primary colors, and to output three primary color signals to an image monitoring device. The imaging system may also be arranged so that a laser irradiation device, a laser beam detection device and an image monitoring device are all placed underwater in a submersible vessel with appropriate provisions for hydrostatic pressure and unmanned operation.

    摘要翻译: 通过用具有不同亮度的几个条纹的测试面板对物体进行模拟,并用具有三原色的脉冲激光束照射测试面板来进行水下物体成像的模拟方法。 根据反射光束脉冲,针对浊度和可视距离计算每种颜色的反射脉冲的测试条纹的对比度值。 该方法可以与具有产生三种不同波长的三原色的激光产生装置的成像装置结合使用; 激光束检测装置,用于接收各原色的反射光束脉冲,以确定各原色的反射光束脉冲的强度,并将三原色信号输出到图像监视装置。 成像系统还可以被布置成使得激光照射装置,激光束检测装置和图像监视装置都被水下放置在潜水容器中,具有用于静水压力和无人操作的适当规定。

    Method for producing molding material
    3.
    发明授权
    Method for producing molding material 失效
    成型材料的制造方法

    公开(公告)号:US06110406A

    公开(公告)日:2000-08-29

    申请号:US997725

    申请日:1997-12-24

    摘要: Disclosed is a method for producing a molding material, which comprises melt-extruding a styrenic polymer essentially having a syndiotactic structure or a composition containing the polymer to give strands, then rapidly cooling the resulting strands to thereby make the surface temperature of the strands not higher than the melting point of the styrenic polymer or the composition containing the polymer, and thereafter gradually cooling them to thereby make the surface temperature of the strands not higher than a temperature higher by 20.degree. C. than their glass transition temperature, and finally pelletizing the strands into pellets. The pellets produced have a high degree of crystallinity and can be well molded into good moldings.

    摘要翻译: 公开了一种模制材料的制造方法,其包括熔融挤出基本上具有间同立构结构的苯乙烯类聚合物或含有该聚合物的组合物以产生链,然后快速冷却所得的链,从而使得该链的表面温度不高 比苯乙烯类聚合物的熔点或含有聚合物的组合物的熔点,然后逐渐冷却,使得线的表面温度不高于比其玻璃化转变温度高20℃的温度,最后将 股线成丸。 所生产的颗粒具有高度的结晶度,并且可以良好地模塑成良好的模制品。