Zoom lens assembly
    1.
    发明授权
    Zoom lens assembly 失效
    变焦镜头组合

    公开(公告)号:US4925282A

    公开(公告)日:1990-05-15

    申请号:US199714

    申请日:1988-05-27

    IPC分类号: G02B7/10

    CPC分类号: G02B7/10

    摘要: A zoom lens assembly comprises a photo-taking optical system having a focusing portion, a zooming portion, and an optic axis, a manual operator movable in the direction of the optic axis for zooming and rotatable about the optic axis for focusing, an electrically rotated drive shaft, a member for moving the zooming portion of the photo-taking optical system for zooming in response to the movement of the manual operator in the direction of the optic axis, an intermediate member rotatable in response to the rotation of the manual operator to move the focusing portion of the photo-taking optical system for focusing, and movable in the direction of the optic axis with the manual operator, a transmission system for coupling the intermediate member to the drive member for movement in the direction of the optic axis to thereby transmit the rotation of the drive member to the intermediate member irrespective of the movement of the intermediate member in the direction of the optic axis, and a change-over device operable to connect and disconnect the rotation of the manual operator and the intermediate member.

    摘要翻译: 变焦透镜组件包括具有聚焦部分,变焦部分和光轴的摄影光学系统,可在光轴方向上移动的手动操作器,用于变焦并围绕光轴可旋转以进行聚焦,电旋转 驱动轴,用于响应于手动操作者在光轴方向的移动而移动照相光学系统的变焦部分以进行变焦的构件,可响应于手动操作器的旋转而旋转的中间构件 移动用于聚焦的摄影光学系统的聚焦部分,并且可以用手动操作器在光轴的方向上移动;传动系统,用于将中间构件连接到驱动构件,以在光轴方向上移动到 从而将驱动构件的旋转传递到中间构件,而不管中间构件在光轴方向上的运动如何,并且ac 摆动装置可操作以连接和断开手动操作器和中间构件的旋转。

    Zoom lens capable of macro photography
    2.
    发明授权
    Zoom lens capable of macro photography 失效
    变焦镜头能够进行微距摄影

    公开(公告)号:US4806000A

    公开(公告)日:1989-02-21

    申请号:US826985

    申请日:1986-02-07

    IPC分类号: G02B7/10 G02B15/00

    CPC分类号: G02B7/10

    摘要: In a zoom lens a zoom operating ring is rotatable to vary the focal length of an optical system between a first focal length and a second focal length. A distance ring is rotatable to effect focusing of the optical system with respect to an object to be photographed which is positioned in a normal photographing distance range including infinity. A macro operating ring is rotatable to effect focusing of the optical system with respect to an object to be photographed which is positioned in a macro photographing distance range including an area of a shorter distance than a close distance in the normal photographing distance range. The optical system has a maximum magnification when the focal length is equal to the first focal length. In response to rotation of the macro operating ring, the zoom operating ring is rotated when the focal length of the optical system is equal to a given focal length different from the first focal length and the macro operating ring is in a position of rotation corresponding to a shortest distance within the macro photographing distance range conforming to the given focal length.

    摘要翻译: 在变焦透镜中,变焦操作环可旋转以改变光学系​​统在第一焦距和第二焦距之间的焦距。 距离环是可旋转的,以实现光学系统相对于被拍摄物体的聚焦,其位于包括无限远的正常拍摄距离范围内。 微操作环可旋转以实现相对于被拍摄对象的光学系统的聚焦,其被定位在包括在正常拍摄距离范围内的距离较短距离的区域的微距拍摄距离范围内。 当焦距等于第一焦距时,光学系统具有最大放大倍率。 响应于宏操作环的旋转,当光学系统的焦距等于与第一焦距不同的给定焦距时,变焦操作环旋转,并且宏操作环处于对应于 在符合给定焦距的宏拍摄距离范围内的最短距离。

    DC Motor control system
    3.
    发明授权
    DC Motor control system 失效
    直流电机控制系统

    公开(公告)号:US4300079A

    公开(公告)日:1981-11-10

    申请号:US32672

    申请日:1979-04-23

    摘要: A DC motor control system which has means for detecting the rise and fall of a drive command signal to generate an ON ACCELERATION/DECELERATION signal and means for generating a current limit signal for driving a DC motor by the ON ACCELERATION/DECELERATION signal to produce a rated output and for driving the DC motor to produce an output 1/n times the rated output when the DC motor is switched from an acceleration state to a stationary state. When the DC motor is accelerated or decelerated by the drive command signal, a current for obtaining the rated output is applied to the armature of the DC motor and, in the stationary state, even when a load on the DC motor is maximum a current for obtaining an output 1/n times the rated output is applied to the armature of the DC motor to reduce the output of the large-output DC motor, thereby providing an enlarged constant output DC motor range.

    摘要翻译: 一种直流电动机控制系统,其具有用于检测驱动指令信号的上升和下降以产生ON加速/减速信号的装置,以及用于通过ON加速/减速信号产生用于驱动DC电动机的限流信号的装置, 额定输出和驱动直流电机,以在直流电机从加速状态切换到静止状态时产生1 / n倍于额定输出的输出。 当通过驱动指令信号加速或减速直流电动机时,用于获得额定输出的电流被施加到直流电动机的电枢,并且在静止状态下,即使当直流电动机上的负载最大时, 获得1 / n倍的额定输出的输出应用于直流电机的电枢,以减小大输出直流电机的输出,从而提供一个放大的恒定输出直流电动机范围。

    System for driving DC motor
    4.
    发明授权
    System for driving DC motor 失效
    直流电机驱动系统

    公开(公告)号:US4284932A

    公开(公告)日:1981-08-18

    申请号:US76615

    申请日:1979-09-18

    IPC分类号: H02P7/298 H02P5/16

    摘要: A system for a DC motor associated with a field winding and driven by using a three-phase anti-parallel thyristor bridge circuit, comprising a first means for controlling an armature current I.sub.a flowing through an armature of the DC motor, and; a second means for controlling a field current I.sub.f flowing the field winding by obtaining the feedback values of a voltage E.sub.a of the armature and the field current I.sub.f and by changing the maximum level of the current I.sub.f in accordance with a three-phase alternating voltage V.sub.ac applied to the three-phase anti-parallel thyristor bridge circuit. In the system, when the three-phase alternating voltage V.sub.ac decreases to a value lower than a predetermined value V.sub.o, the field current I.sub.f are decreased so that the armature voltage E.sub.a is decreased.

    摘要翻译: 一种用于与场绕组相关并且通过使用三相反并联晶闸管桥接电路驱动的直流电动机的系统,包括用于控制流过直流电动机的电枢的电枢电流Ia的第一装置, 用于控制励磁电流的第二装置如果通过获得电枢的电压Ea和励磁电流If的反馈值来流过励磁绕组,并且通过根据三相交流电压Vac来改变电流If的最大电平 应用于三相反并联晶闸管桥接电路。 在该系统中,当三相交流电压Vac减小到低于预定值Vo的值时,励磁电流If减小,使得电枢电压Ea减小。

    Purification method for carbon material containing carbon nanotubes, carbon material produced by the same method, and resin molding, fiber, heat sink, slider, material for field electron emission source, conduction aid for electrode, catalyst support
    6.
    发明授权
    Purification method for carbon material containing carbon nanotubes, carbon material produced by the same method, and resin molding, fiber, heat sink, slider, material for field electron emission source, conduction aid for electrode, catalyst support 失效
    含有碳纳米管的碳材料的纯化方法,通过相同方法生产的碳材料,以及树脂成型,纤维,散热片,滑块,场电子发射源材料,电极导电助剂,催化剂载体

    公开(公告)号:US08628748B2

    公开(公告)日:2014-01-14

    申请号:US12531283

    申请日:2008-03-07

    IPC分类号: D01F9/12 C01B31/02

    摘要: A purification method for a carbon material containing carbon nanotubes is provided, which satisfies the following requirements: The method should prevent carbon nanotubes from being damaged, broken or flocculated; the method should be capable of removing the catalyst metal and carbon components other than the carbon nanotubes; and the method should be applicable to not only multi-walled carbon nanotubes but also single-walled carbon nanotubes which will undergo significant structural changes when heated to 1400° C. or higher temperatures. The method is characterized by including a carbon material preparation process for preparing a carbon material containing carbon nanotubes by an arc discharge method, using an anode made of a material containing at least carbon and a catalyst metal; and a halogen treatment process for bringing the carbon material into contact with a gas containing a halogen and/or halogen compound.

    摘要翻译: 提供了一种含有碳纳米管的碳材料的净化方法,该方法满足以下要求:该方法应防止碳纳米管受损,破裂或絮凝; 该方法应能除去碳纳米管以外的催化剂金属和碳成分; 该方法不仅适用于多壁碳纳米管,而且还适用于单层碳纳米管,当加热至1400℃或更高温度时,其将经历显着的结构变化。 该方法的特征在于包括通过电弧放电法制备含有碳纳米管的碳材料的碳材料制备方法,使用由至少含有碳和催化剂金属的材料制成的阳极; 以及使碳材料与含有卤素和/或卤素化合物的气体接触的卤素处理方法。

    Device for detecting opposite phase and open phase
    9.
    发明授权
    Device for detecting opposite phase and open phase 失效
    用于检测相位和开路相位的装置

    公开(公告)号:US4284939A

    公开(公告)日:1981-08-18

    申请号:US76548

    申请日:1979-09-18

    摘要: A device for detecting opposite phases and an open phase in an input three-phase voltage for a DC motor, wherein the input three-phase voltage is rectified by a three-phase bridge circuit and supplied to the armature of the DC motor. The input three-phase voltage is supplied to the three-phase bridge circuit when the maximum level is equal to or less than the reference voltage, while the input three-phase voltage is not supplied to the bridge circuit when the maximum level is greater than the reference voltage. In this case, both opposite phases and an open phase can be detected by using a common device. In addition, only two phases, such as U- and W-phases, are used for detecting opposite phases and an open phase no matter how these phases may be generated in any phase such as U-, V- or W-phase of the input three-phase voltage. As a result, the device is small in size, simple in electrical construction and low in cost.

    摘要翻译: 一种用于在直流电动机的输入三相电压中检测相位相位和开路相位的装置,其中输入三相电压由三相桥式电路整流并提供给直流电动机的电枢。 当最大电平等于或小于参考电压时,输入三相电压被提供给三相桥式电路,而当最大电平大于输入三相电压时,输入三相电压不提供给桥式电路 参考电压。 在这种情况下,可以通过使用公共装置来检测相位相位和开路相位。 此外,只有两个相位,如U相和W相,用于检测相位相和开路相位,无论这些相位如何在任何相位中产生,例如U相,V相或W相的任何相位 输入三相电压。 结果,该装置尺寸小,电气结构简单,成本低。

    Anode material for lithium ion secondary battery
    10.
    发明授权
    Anode material for lithium ion secondary battery 有权
    锂离子二次电池用阳极材料

    公开(公告)号:US07816037B2

    公开(公告)日:2010-10-19

    申请号:US10501333

    申请日:2003-01-24

    IPC分类号: H01M4/58

    摘要: The invention provides an anode material for lithium ion secondary battery using a coated graphite powder as a raw material, which is coated thermoplastic resin of a carbonization yield of ≦20 wt % in a proportion of ≦10 parts by weight the carbonized material per 100 parts by weight graphite powder. Coating with thermoplastic resin increases the accumulative pore volume by ≦5%, relative to the uncoated powder, and results in pore sizes of 0.012-40 μm via mercury porosimeter method. Calculated with the BJH method as viewed from desorption isotherm, the coated graphite powder has a mesopore volume ≦0.01 cc/g or ≦60% of the pore volume of the uncoated graphite powder. This coated powder also has an average particle size ranging from 10-50 μm measured by a laser-scattering-particle-size-distribution measuring device, and a standard deviation to the average particle size (σ/D) ratio of ≦0.02.

    摘要翻译: 本发明提供一种使用涂覆石墨粉末作为原料的锂离子二次电池的负极材料,其为碳化产率为< nEE的涂层热塑性树脂;以< NEE为20重量%; 10重量份碳化材料 100重量份石墨粉。 用热塑性树脂涂层,相对于未涂覆的粉末,累积孔体积增加了±10%; 5%,通过汞孔率计法得到0.012-40μm的孔径。 用解吸等温线观察的BJH方法计算,涂覆的石墨粉末的中孔体积为0.01cc / g或者nlE;未涂覆石墨粉末的孔体积的60%。 该涂覆粉末还具有通过激光散射 - 粒度分布测量装置测量的10-50μm的平均粒径,并且与平均粒径(& Gr / D)比率&n1E的标准偏差为0.02 。