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7 条记录 (耗时 0.016 秒)

    Liquid crystal cell with opaque mask for printing device
    2.
    发明授权
    Liquid crystal cell with opaque mask for printing device 失效
    具有不透明面罩的液晶盒用于打印装置

    公开(公告)号：US4810062A

    公开(公告)日：1989-03-07

    申请号：US136426

    申请日：1987-12-16

    申请人： Kenji Aoki ,  Mitsuo Nagata ,  Haruo Nakamura ,  Teiji Miura

    发明人： Kenji Aoki ,  Mitsuo Nagata ,  Haruo Nakamura ,  Teiji Miura

    IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1343 ,  G06K15/12 ,  G03B21/22

    CPC分类号： G06K15/1252 ,  G02F1/133 ,  G02F1/13439

    摘要： A high-speed responsive liquid crystal optical device with improved light transmissivity is provided. The device includes a liquid crystal panel including an optically active liquid crystal material having dielectric anisotropy which becomes zero at a crossing frequency ("fc") of 100 KHz or below. The dielectric anisotropy of the liquid crystal is positive at frequencies lower than fc ("fl") and negative at frequencies higher than fc ("fh"). Crossed polarizers are disposed on each side of the liquid crystal panel. A liquid crystal driving circuit selectively applies a signal of a frequency fh to open the device and a signal of a frequency fl to close the device.The optical device is particularly well suited for use as a light valve in a printer device. Response time within 1 m sec. permits a printing speed of 10 prints of A4 size to be produced per minute with a resolving power of about 10 dots per 1 m/m. This amounts to a printing speed of approximately 500 lines in one second with each line being written into m sec. or less. The optically active nematic liquid crystal is a composition comprising a optically inactive nematic liquid crystal and an optically active liquid crystal material added thereto.

    摘要翻译： 提供了具有改善的光透射率的高速响应液晶光学装置。 该装置包括具有介电各向异性的光学活性液晶材料的液晶面板，其在交叉频率（“fc”）为100KHz以下为零。 在低于fc（“fl”）的频率下，液晶的介电各向异性为正，在高于fc（“fh”）的频率处为负。 交叉偏振器设置在液晶面板的每一侧。 液晶驱动电路选择性地施加频率fh的信号以打开设备和频率f1的信号以关闭设备。 光学装置特别适合用作打印机装置中的光阀。 1 m秒内响应时间 允许每分钟产生10张A4尺寸的打印速度，每1m / m的分辨力约10点。 这相当于一秒钟内大约500行的打印速度，每行被写入m秒。 或更少。 光学活性向列型液晶是一种组合物，其包含光学惰性向列型液晶和添加到其中的光学活性液晶材料。

    Electrostatic printer
    4.
    发明授权
    Electrostatic printer 失效
    静电打印机

    公开(公告)号：US4393390A

    公开(公告)日：1983-07-12

    申请号：US190149

    申请日：1980-09-24

    申请人： Kenji Aoki ,  Mitsuhiro Goto ,  Teiji Miura

    发明人： Kenji Aoki ,  Mitsuhiro Goto ,  Teiji Miura

    IPC分类号： G06K15/14 ,  G01D15/06

    CPC分类号： G06K15/14

    摘要： An electrostatic printer for printing images on an electrostatic recording medium. The electrostatic printer includes an elongated electrode and a back electrode. The back electrode is spaced from the elongated electrode to define a gap therebetween. The gap, defined by the elongated electrode and the back electrode, is adapted to permit the passage of the electrostatic recording medium in a predetermined direction and is effectively reduced at a given point on the elongated electrode. The elongated electrode is displaceable relative to the back electrode so that the point on the elongated electrode which then defines the effectively reduced gap is displaced laterally of the direction of passage of the electrostatic recording medium in response to the displacement of the elongated electrode. A voltage is selectively applied between the elongated electrode and the back electrode for effecting printing on the electrostatic recording medium in registration with the point on the elongated electrode then defining the effectively reduced gap.

    摘要翻译： 一种用于在静电记录介质上打印图像的静电打印机。 静电打印机包括细长电极和背面电极。 背电极与细长电极间隔开，以在它们之间形成间隙。 由细长电极和背电极限定的间隙适于允许静电记录介质沿预定方向通过，并且在细长电极上的给定点处有效地减小。 细长电极可以相对于背电极移动，使得细长电极上然后限定有效减小的间隙的点响应于细长电极的位移而沿着静电记录介质的通过方向横向移位。 在细长电极和后电极之间选择性地施加电压，以在静电记录介质上进行印刷，与细长电极上的点对准，然后限定有效减小的间隙。

    Liquid crystal shutter
    5.
    发明授权
    Liquid crystal shutter 失效
    液晶快门

    公开(公告)号：US4838657A

    公开(公告)日：1989-06-13

    申请号：US798093

    申请日：1985-11-14

    申请人： Teiji Miura ,  Hideo Yamazaki ,  Nobumasa Abe ,  Toshihide Okamura ,  Hideki Morozumi ,  Tatsuki Matsuo

    发明人： Teiji Miura ,  Hideo Yamazaki ,  Nobumasa Abe ,  Toshihide Okamura ,  Hideki Morozumi ,  Tatsuki Matsuo

    IPC分类号： G02F1/1343

    CPC分类号： G02F1/134309

    摘要： A liquid crystal light shutter having means for stabilizing molecular orientation of a liquid crystal material is provided. In one embodiment of the invention, isolation electrodes are provided parallel to and between adjacent common electrodes on a substrate. In an alternate embodiment, the effective gap distance between adjacent common electrodes is at least ten times greater than the distance between opposing substrates.

    摘要翻译： 提供一种具有用于稳定液晶材料的分子取向的装置的液晶光闸。 在本发明的一个实施例中，隔离电极平行于基板上的相邻公共电极之间和之间提供。 在替代实施例中，相邻公共电极之间的有效间隙距离比相对基板之间的距离大至少十倍。

    Dual frequency, optically active liquid crystal cell
    6.
    发明授权
    Dual frequency, optically active liquid crystal cell 失效
    双频光学活性液晶盒

    公开(公告)号：US4927242A

    公开(公告)日：1990-05-22

    申请号：US742651

    申请日：1985-06-10

    申请人： Kenji Aoki ,  Mitsuo Nagata ,  Haruo Nakamura ,  Teiji Miura

    发明人： Kenji Aoki ,  Mitsuo Nagata ,  Haruo Nakamura ,  Teiji Miura

    IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1343 ,  G06K15/12

    CPC分类号： G06K15/1252 ,  G02F1/133 ,  G02F1/13439

    摘要： A high-speed responsive liquid crystal optical device with improved light transmissivity is provided. The device includes a liquid crystal panel including an optically active liquid crystal material having dielectric anisotropy which becomes zero at a crossing frequency ("fc") of 100 KHz or below. The dielectric anisotropy of the liquid crystal is positive at frequencies lower than fc ("fl") and negative at frequencies higher than fc ("fh"). Crossed polarizers are disposed on each side of the liquid crystal panel. A liquid crystal driving circuit selectively applies a signal of a frequency fh to open the device and a signal of a frequency fl to close the device. The optical device is particularly well suited for use as a light valve in a printer device. Response time within 1 m sec. permits a printing speed of 10 prints of A4 size to be produced per minute with a resolving power of about 10 dots per 1 m/m. This amounts to a printing speed of approximately 500 lines in one second with each line being written into m sec. or less. The optically active nematic liquid crystal is a composition comprising an optically inactive nematic liquid crystal and an optically active liquid crystal material added thereto.

    Electro-photographic printer
    7.
    发明授权
    Electro-photographic printer 失效
    电子照相打印机

    公开(公告)号：US4386836A

    公开(公告)日：1983-06-07

    申请号：US220484

    申请日：1980-12-29

    申请人： Kenji Aoki ,  Haruo Nakamura ,  Teiji Miura ,  Mitsuo Nagata

    发明人： Kenji Aoki ,  Haruo Nakamura ,  Teiji Miura ,  Mitsuo Nagata

    IPC分类号： F02B75/02 ,  G02F1/133 ,  G03G15/32 ,  G06K15/12 ,  G03G15/00

    CPC分类号： G06K15/1252 ,  G02F1/133 ,  G03G15/326 ,  F02B2075/027

    摘要： An electro-photographic printer utilizing a liquid crystal material which operates as a light valve. The liquid crystal material is sandwiched between two base plates which include electrodes which define a plurality of micro-shutters. A light source illuminates one side of the liquid crystal material. A driving circuit selectively applies driving signals to the electrodes for selectively opening and closing the micro-shutters to allow light from the light source to pass therethrough. A photo-sensitive drum on the other side of the liquid crystal receives the light transmitted through the liquid crystal to form characters. The characters are transmitted to a recording paper. The liquid crystal material, which has an inverted dielectric anisotropy on opposite sides of the critical frequency, is selectively driven by selectively applying two different frequency signals to the liquid crystal.

    摘要翻译： 利用作为光阀操作的液晶材料的电子照相打印机。 液晶材料夹在包括限定多个微快门的电极的两个基板之间。 光源照亮液晶材料的一侧。 驱动电路选择性地向电极施加驱动信号，用于选择性地打开和关闭微快门以允许来自光源的光通过。 液晶另一侧的感光鼓接收透过液晶的光线形成字符。 这些字符被传送到记录纸。 通过选择性地将两个不同的频率信号施加到液晶来选择性地驱动具有临界频率的相对侧上的反向介电各向异性的液晶材料。