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    • 13. 发明授权
    • Optical modulator
    • 光调制器
    • US08204344B2
    • 2012-06-19
    • US12471838
    • 2009-05-26
    • Kenji KawanoSeiji UchidaEiji KawazuraYuji SatoMasaya NanamiToru NakahiraNobuhiro IgarashiSatoshi Matsumoto
    • Kenji KawanoSeiji UchidaEiji KawazuraYuji SatoMasaya NanamiToru NakahiraNobuhiro IgarashiSatoshi Matsumoto
    • G02F1/035
    • G02F1/2255G02F2001/212
    • Herein disclosed is an optical modulator, having: a substrate (1); and a center and ground electrodes (4a to 4c), in which the substrate has ridge portions (8a to 8c), the center and ground electrodes are respectively formed above the ridge portions, the ridge portions below the center and ground electrodes respectively have top parts (10a, 10b) having a respective first and second end points (18, 19) separated with a distance of “WR”, the substrate has a bottom surface (21b) between the ridge portions having center and midway points (23, 24) positioned with a respective distance of WR/2 and WR/N (3≦N≦25) from the first end point, the ridge portion below the center electrode has a normal line (13), and the center point and the midway point define a straight line (25) crossed with the normal line at an angle larger or equal to 90.1°.
    • 本文公开了一种光调制器,具有:基板(1); 以及其中基板具有脊部分(8a至8c)的中心和接地电极(4a至4c),中心接地电极分别形成在脊部上方,中心部分和接地电极下方的脊部分别具有顶部 具有以“WR”的距离分开的相应的第一和第二端点(18,19)的部分(10a,10b),所述基板在具有中心点和中间点(23,24)的脊部之间具有底表面 )与第一端点分别具有WR / 2和WR / N(3≦̸ N≦̸ 25)的距离,中心电极下方的脊部具有法线(13),中心点和中点 以大于或等于90.1°的角度定义与法线交叉的直线(25)。
    • 16. 发明授权
    • Image reading device
    • 图像读取装置
    • US08159731B2
    • 2012-04-17
    • US12010965
    • 2008-01-31
    • Yuji SatoAtsushi Yokochi
    • Yuji SatoAtsushi Yokochi
    • H04N1/04
    • H04N1/00795H04N1/00819H04N1/02409H04N1/0464H04N1/1017H04N1/12H04N1/193
    • An image reading device according to one aspect of the invention comprises: a conveying unit configured to convey a recording medium; a first transmissive portion having a first surface that allows the recording medium to pass through the first surface; a second transmissive portion having a second surface on which a recording medium is allowed to be placed; an image reading unit comprising a line sensor extending in a first direction and movable on a second path, the second path continuously extending below the first transmissive portion and the second transmissive portion; and a driver configured to move the image reading unit on the second path. A relative distance of a third direction perpendicular to the first and second directions between the line sensor and the first surface changes in the second path below the first transmissive portion.
    • 根据本发明的一个方面的图像读取装置包括:传送单元,被配置为传送记录介质; 第一透射部分,具有允许记录介质通过第一表面的第一表面; 具有允许放置记录介质的第二表面的第二透射部分; 图像读取单元,包括沿第一方向延伸并可在第二路径上移动的线传感器,所述第二路径连续地延伸到所述第一透射部分和所述第二透射部分的下面; 以及配置成将图像读取单元移动到第二路径上的驱动器。 在线传感器和第一表面之间垂直于第一和第二方向的第三方向的相对距离在第一透射部分下方的第二路径中改变。
    • 20. 发明授权
    • Optical modulator
    • 光调制器
    • US07916981B2
    • 2011-03-29
    • US12063789
    • 2006-08-15
    • Kenji KawanoMasaya NanamiYuji SatoSeiji UchidaNobuhiro IgarashiToru NakahiraHiroaki Senda
    • Kenji KawanoMasaya NanamiYuji SatoSeiji UchidaNobuhiro IgarashiToru NakahiraHiroaki Senda
    • G02F1/01G02F1/035G02B6/12
    • G02F1/2255G02F1/0316G02F1/0356G02F2203/25
    • An optical modulator, including: a substrate; an optical waveguide embedded in the substrate; a traveling wave electrode mounted on the substrate and having a traveling wave applied thereon so that a light wave is modulated by the traveling wave with an electro-optic effect. The traveling wave electrode includes a center electrode and ground electrodes; in which the optical waveguide has a plurality of interaction optical waveguides that form a Mach-Zehnder optical waveguide that modulates the light wave in a phase modulation manner when the traveling wave is applied to the traveling wave electrode, the interaction optical waveguides form a region where respective widths of the interaction optical waveguides are different from each other, and the center electrode and the ground electrodes are positioned such that interaction efficiencies between the high frequency electric signal and the light wave guided in the respective interaction optical waveguides are substantially equal to each other.
    • 一种光调制器,包括:基板; 嵌入基板中的光波导; 安装在基板上并具有施加在其上的行波的行波电极,使得光波被电光效应的行波调制。 行波电极包括中心电极和接地电极; 其中光波导具有多个相互作用的光波导,其形成当将行波施加到行波电极时以相位调制方式调制光波的马赫 - 曾德尔光波导,相互作用光波导形成一个区域, 相互作用光波导的相应宽度彼此不同,并且中心电极和接地电极被定位成使得在各个相互作用光波导中引导的高频电信号和光波之间的相互作用效率基本相等 。