Multiwavelength upconversion waveguide laser
    6.
    发明授权
    Multiwavelength upconversion waveguide laser 失效
    多波长上变频波导激光器

    公开(公告)号:US5436919A

    公开(公告)日:1995-07-25

    申请号:US186068

    申请日:1994-01-25

    摘要: A multiwavelength upconversion waveguide laser producing visible or ultraviolet wavelength radiation comprising a semiconductor laser diode producing relatively long wavelength radiation, a channel waveguide having a thin film material which converts the relatively long wavelength radiation into visible or ultraviolet wavelength radiation, and a optical resonator which recirculates the visible or ultraviolet wavelength radiation. The optical resonator may use an output optical coating or one or more Bragg grating reflectors as an output coupler. One or more optical resonators may be used to produce one or more visible or ultraviolet radiation wavelengths. One or more independently controllable lightwave modulators are used to modulate the visible or ultraviolet wavelength radiation.

    摘要翻译: 产生可见光或紫外线波长的多波长上变频波导激光,其包括产生较长波长辐射的半导体激光二极管,具有将相对较长波长辐射转换成可见光或紫外线波长辐射的薄膜材料的通道波导,以及再循环 可见光或紫外线波长辐射。 光学谐振器可以使用输出光学涂层或一个或多个布拉格光栅反射器作为输出耦合器。 可以使用一个或多个光学谐振器来产生一个或多个可见光或紫外辐射波长。 一个或多个可独立控制的光波调制器用于调制可见光或紫外线波长的辐射。

    Preventing defective nozzle ink discharge in continuous inkjet printhead from being used for printing
    8.
    发明授权
    Preventing defective nozzle ink discharge in continuous inkjet printhead from being used for printing 失效
    防止连续喷墨打印头中的喷墨墨水排出不良被用于打印

    公开(公告)号:US07004571B2

    公开(公告)日:2006-02-28

    申请号:US10375514

    申请日:2003-02-25

    IPC分类号: B41J2/02

    摘要: A method, and apparatus for performing the method, are intended to prevent all of the ink discharged from a defective one of multiple nozzles in a continuous inkjet printhead from being used for printing on a print medium. This can be done by periodically heating the defective nozzle at a frequency that is greater than frequencies other nozzles which are not defective are periodically heated, to cause the defective nozzle to only discharge ink droplets that have a smaller volume than ink droplets discharged from the nozzles that are not defective. Then, the smaller volume droplets discharged from the defective nozzle are prevented from reaching a print medium, but the larger volume ink droplets discharged from the nozzles that are not defective are allowed to reach the print medium.

    摘要翻译: 用于执行该方法的方法和装置旨在防止从连续喷墨打印头中的多个喷嘴中的有缺陷的喷嘴中排出的所有墨水都用于打印介质上的打印。 这可以通过周期性地加热有缺陷的喷嘴的频率来实现,该频率大于频率不同于周期性加热的其它喷嘴的频率,以使有缺陷的喷嘴仅排出具有比从喷嘴喷出的墨滴的体积更小的墨滴 没有缺陷。 然后,防止从有缺陷的喷嘴排出的较小体积的液滴到达打印介质,但是允许从喷嘴排出的较大体积的墨滴到达打印介质。