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    • 4. 发明授权
    • Direction indication lamp control device, direction indication device, and method of controlling direction indication device
    • 方向指示灯控制装置,方向指示装置以及方向指示装置的控制方法
    • US08773028B2
    • 2014-07-08
    • US13811869
    • 2011-10-31
    • Kenichi KubotaHideyuki Ono
    • Kenichi KubotaHideyuki Ono
    • H05B37/00
    • H05B37/02B60Q1/34B60Q11/007H05B33/0827
    • A direction indication lamp control device includes: a pulse signal generation unit that generates a pulse signal; a current control element having one end to which power supply voltage is supplied, a control terminal to which the pulse signal is supplied, and the other end which outputs a drive current, the other end of the current control element being connected to one end of an external direction indication switch, and the other end of the direction indication switch being connected to a direction indication lamp; and a leak detection unit that causes the pulse signal generation unit to decrease the amplitude of the pulse signal in a case where the drive current corresponding to a pulse wave of the pulse signal is equal to or less than a leak detection current value during a leak detection period.
    • 方向指示灯控制装置包括:产生脉冲信号的脉冲信号产生单元; 具有供给电源电压的一端的电流控制元件,供给脉冲信号的控制端子,输出驱动电流的另一端,电流控制元件的另一端与 外部方向指示开关,方向指示开关的另一端连接到方向指示灯; 以及泄漏检测单元,其在与所述脉冲信号的脉搏波对应的驱动电流在泄漏期间等于或者小于泄漏检测电流值的情况下,使所述脉冲信号生成单元减小所述脉冲信号的振幅 检测期。
    • 5. 发明授权
    • Zoom lens
    • 变焦镜头
    • US08699145B2
    • 2014-04-15
    • US13455479
    • 2012-04-25
    • Yoji KubotaKenichi KubotaHitoshi Hirano
    • Yoji KubotaKenichi KubotaHitoshi Hirano
    • G02B15/14
    • G02B15/173
    • A zoom lens includes a first lens group, a second lens group, a third lens group, and a fourth lens group. The first lens group includes a first lens that has positive refractive power, a second lens that has negative refractive power, and a prism. The second lens group includes a third lens that has positive refractive power and a fourth lens that has negative refractive power. The third lens group includes a stop, a fifth lens that has positive refractive power, and a sixth lens that has negative refractive power. The fourth lens group includes a seventh lens that has positive refractive power. Upon changing magnification from a wide-angle end to a telephoto end, the first and fourth lens groups are fixed, the second lens group first moves toward an image plane side and then moves toward an object side, and the third lens group linearly moves toward the object side.
    • 变焦镜头包括第一透镜组,第二透镜组,第三透镜​​组和第四透镜组。 第一透镜组包括具有正屈光力的第一透镜,具有负屈光力的第二透镜和棱镜。 第二透镜组包括具有正折光力的第三透镜和具有负屈光力的第四透镜。 第三透镜组包括具有正折光力的光阑,第五透镜和具有负屈光力的第六透镜。 第四透镜组包括具有正屈光力的第七透镜。 在从广角端到望远端的倍率变化时,第一透镜组和第四透镜组是固定的,第二透镜组首先朝向像平面侧移动,然后朝向物体侧移动,并且第三透镜组线性移动朝向 物体侧。
    • 6. 发明申请
    • IMAGING LENS
    • 成像镜头
    • US20120113533A1
    • 2012-05-10
    • US13289452
    • 2011-11-04
    • Yoji KUBOTAKenichi KubotaHitoshi Hirano
    • Yoji KUBOTAKenichi KubotaHitoshi Hirano
    • G02B9/34
    • G02B9/58G02B3/04G02B13/004
    • An imaging lens includes a first lens group having a first lens that directs a concave surface to an image plane side and is negative; a second lens group having a second lens that directs a concave surface to an object side and is positive; an aperture; a third lens group having a third lens that is positive; and a fourth lens group having a joined lens that is composed of a fourth lens that is positive and a fifth lens that is negative. In the configuration, when the whole lens system has a focal length f and a composite focal length of the first lens group to the third lens group is Fa, the imaging lens satisfies the following relation: 0.3
    • 成像透镜包括:第一透镜组,具有将凹面指向像面侧的第一透镜,并且为负; 第二透镜组,具有将凹面指向物侧并具有正的第二透镜; 孔径 第三透镜组,具有正的第三透镜; 以及第四透镜组,具有由正的第四透镜和为负的第五透镜构成的接合透镜。 在该结构中,当整个透镜系统具有焦距f并且第一透镜组与第三透镜组的合成焦距为Fa时,成像透镜满足以下关系:0.3
    • 7. 发明授权
    • Switching circuit
    • 开关电路
    • US07221208B2
    • 2007-05-22
    • US10541385
    • 2004-01-07
    • Kenichi KubotaMasaki OhshimaYukihiro NozakiHiroyuki HagaMasanori Hayashi
    • Kenichi KubotaMasaki OhshimaYukihiro NozakiHiroyuki HagaMasanori Hayashi
    • H03K17/687
    • H03K17/0822
    • The present invention provides a switching circuit comprising a current detecting circuit that detects current waveform of a main switch in real time waveform and outputs it in low impedance. The switching circuit comprises the current detecting circuit having the main switch (11), of which on-voltage shows resistance characteristics, wherein a gate terminal is connected to a driving circuit (4) and further either terminal of drain or source thereof is connected to a fixed potential (3) and the other terminal thereof is connected to a load circuit (2) respectively, a first resistance element (21), of which resistance value is higher than on-resistance of the main switch connected to the fixed potential (3), a subsidiary switch (12), a source terminal thereof is connected to the first resistance element (21), an amplifier (6) that amplifies comparatively voltage generated in the first resistance element (21) and outputs to a gate terminal of the subsidiary switch (12) and the second resistance element (22) that generates voltage by amplifying on-current of the main switch (11) by connecting to the drain terminal of the subsidiary switch (11).
    • 本发明提供了一种开关电路,其包括检测电流波形的电流检测电路,并以低阻抗输出。 开关电路包括具有主开关(11)的电流检测电路,其中导通电压显示电阻特性,其中栅极端子连接到驱动电路(4),并且其漏极或源极的任一端子连接到 固定电位(3),其另一端分别连接到负载电路(2),电阻值高于与固定电位相连的主开关的导通电阻的第一电阻元件(21) 3),辅助开关(12),其源极端子连接到第一电阻元件(21),放大器(6),其放大在第一电阻元件(21)中产生的相对电压,并输出到栅极端子 辅助开关(12)和第二电阻元件(22),通过连接到副开关(11)的漏极端子,通过放大主开关(11)的导通电流来产生电压。
    • 10. 发明授权
    • Imaging lens
    • 成像镜头
    • US08842378B2
    • 2014-09-23
    • US13363766
    • 2012-02-01
    • Yoji KubotaKenichi KubotaHitoshi HiranoIchiro Kurihara
    • Yoji KubotaKenichi KubotaHitoshi HiranoIchiro Kurihara
    • G02B9/34G02B13/04G02B3/02G02B13/00
    • G02B13/004G02B9/34
    • An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having negative refractive power; and a fourth lens having negative refractive power, arranged from an object side to an image plane side. In the first lens, a curvature radius on an object-side surface is positive and a curvature radius of an image-side surface is negative. In the third lens, curvature radii of an object-side surface and an image-side surface are both negative. In the fourth lens, curvature radii of an object-side surface and an image-side surface thereof are both positive. When the whole lens system has a focal length f and a distance from the object-side surface of the first lens to an image-side surface of the fourth lens is L14, the imaging lens satisfies the following expression: 0.5
    • 成像透镜包括具有正折光力的第一透镜; 具有负屈光力的第二透镜; 具有负屈光力的第三透镜; 以及从物体侧到像面侧配置的具有负屈光力的第四透镜。 在第一透镜中,物体侧表面上的曲率半径为正,图像侧表面的曲率半径为负。 在第三透镜中,物体侧表面和图像侧表面的曲率半径均为负。 在第四透镜中,物体侧表面和图像侧表面的曲率半径均为正。 当整个透镜系统具有焦距f并且从第一透镜的物体侧表面到第四透镜的像侧表面的距离为L14时,成像透镜满足以下表达式:0.5