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255 条记录 (耗时 0.016 秒)

    Solar cells
    1.
    发明授权
    Solar cells 失效
    太阳能电池

    公开(公告)号：US3912539A

    公开(公告)日：1975-10-14

    申请号：US32907573

    申请日：1973-02-02

    申请人： FERRANTI LTD

    发明人： MAGEE VINCENT

    IPC分类号： H01L27/142 ,  H01L31/042 ,  H01L31/00

    CPC分类号： H01L27/142 ,  H01L31/044 ,  H01L31/0443 ,  H01L31/0504 ,  Y02E10/50 ,  Y10S257/926

    摘要： An array of solar cells comprises a plurality of semiconductor devices, each semiconductor device comprising a solar cell and a protective diode, most solar cells being connected individually in parallel with a protective diode in a different semiconductor device, to provide a compact arrangement for the array, within each semiconductor device the radiation-sensitive P-N junction of the solar cell being isolated from the P-N junction of the protective diode.

    摘要翻译： 太阳能电池阵列包括多个半导体器件，每个半导体器件包括太阳能电池和保护二极管，大多数太阳能电池在不同的半导体器件中与保护二极管并联连接，以提供阵列紧凑的布置 在每个半导体器件内，太阳能电池的辐射敏感PN结与保护二极管的PN结隔离。

    Accelerometers
    2.
    发明授权
    Accelerometers 失效
    加速度计

    公开(公告)号：US3901086A

    公开(公告)日：1975-08-26

    申请号：US48341674

    申请日：1974-06-26

    申请人： FERRANTI LTD

    发明人： GRIFFITHS WILLIAM EDWARD ,  LEVIS PETER STANLEY

    IPC分类号： G01P15/13 ,  G01P15/08 ,  G01C21/16

    CPC分类号： G01P15/132

    摘要： An accelerometer of the force-balance type has an inertial mass, able to be displaced under the action of an acceleration force, and electromagnetic coil responsive to a current flow in the coil to generate a restoring force on the mass to oppose the acceleration force. The mass controls a switch such that when the mass is displaced under acceleration operation of the switch causes a linearly increasing current to be applied to the coil up to a predetermined value in a reference time period. The current is generated by an oscillator, a first counter and binary resistor ladder network and the time period is that for the number of oscillations required to generate the predetermined value of current. When the current flow causes the mass to be restored further operation of the switch causes a counter, started with the first counter, to stop counting. In any one reference time period the total in the second counter is an indication of the acceleration value (by equating the acceleration force with the current generated force required to overcome it). The second counter provides a serial binary output for further processing or for passing to an integrating or summating circuit to provide in the same form signals representing the velocity of, and distance travelled by, the accelerometer.

    摘要翻译： 力平衡型的加速度计具有能够在加速力作用下移动的惯性质量，以及响应于线圈中的电流的电磁线圈，以在质量上产生与加速力相反的恢复力。 质量控制开关，使得当质量在开关的加速操作下移位时，在参考时间段内将线性增加的电流施加到线圈达预定值。 电流由振荡器，第一计数器和二进制电阻梯形网络产生，时间周期为产生电流的预定值所需的振荡次数。 当电流导致质量被恢复时，开关的进一步操作导致从第一计数器开始的计数器停止计数。 在任何一个参考时间段中，第二计数器中的总计是加速度值的指示（通过将加速力等于克服它所需的当前产生的力）。 第二计数器提供用于进一步处理的串行二进制输出或用于通过积分或求和电路以相同的形式提供表示加速度计的速度和行进距离的信号。

    Visual display devices
    3.
    发明授权
    Visual display devices 失效

    公开(公告)号：US3876906A

    公开(公告)日：1975-04-08

    申请号：US37135573

    申请日：1973-06-19

    申请人： FERRANTI LTD

    发明人： WALTERS FRANK

    IPC分类号： H01J17/49 ,  H01J11/02 ,  H01J65/04

    CPC分类号： H01J17/492 ,  H01J17/49

    摘要： A visual display device consists of a matrix of cold-cathode direct-current discharge devices any one of which is addressable by a cross-bar arrangement of conductors to produce a required display. Each discharge device is provided with a subsidiary electrode, say an anode, spaced further than the main anode electrode from the cathode electrode. The subsidiary electrodes are capacitively coupled to conductors grouped as for the main anodes. The arrangements permit discharge devices which contained a discharge and which have been turned off to be turned on a short time later by way of a pulse applied to the subsidiary anodes but not those devices which did not contain a discharge. By varying the time delay between turn-off and turn-on, variable brightness can be obtained.

    Device for detection of blemishes on opposite faces of a planar object
    6.
    发明授权
    Device for detection of blemishes on opposite faces of a planar object 失效
    用于检测平面对象的相对面上的斑点的装置

    公开(公告)号：US3836261A

    公开(公告)日：1974-09-17

    申请号：US38021673

    申请日：1973-07-18

    申请人： FERRANTI LTD

    发明人： CLARKE G

    IPC分类号： G02B26/10 ,  G01B11/30 ,  G01N21/89 ,  G01N21/892 ,  G01N21/16 ,  G01B11/00 ,  G01N21/48

    CPC分类号： G01N21/8901

    摘要： A detector of blemishes in opposite faces of a substantially planar object or web comprises a scanning station past which the object moves, the scanning station including a laser, a lens system to focus the beam onto the surface and a detector to receive light diffusely reflected from the surface and to produce a blemish signal when a change is detected in the amount of light reflected. The scanning station is arranged with respect to the object so that the beam scans in a direction normal to the plane of the object and mirrors are provided, inclined to each face of the object such that the scanning beam strikes each mirror in turn and is reflected therefrom to scan both faces of the object.

    摘要翻译： 在基本上平面的物体或幅材的相对面中的瑕疵检测器包括物体移动通过的扫描站，扫描站包括激光器，将光束聚焦到表面上的透镜系统和用于接收从 并且在反射的光量检测到变化时产生瑕疵信号。 扫描站相对于物体布置，使得光束沿着垂直于物体平面的方向扫描，并且设置反射镜，倾斜到物体的每个面，使得扫描光束依次撞击每个反射镜并被反射 从而扫描物体的两个面。

    Q switched lasers
    7.
    发明授权
    Q switched lasers 失效
    Q开关激光

    公开(公告)号：US3831106A

    公开(公告)日：1974-08-20

    申请号：US33040573

    申请日：1973-02-07

    申请人： FERRANTI LTD

    发明人： WARD R

    IPC分类号： H01S3/115 ,  H01S3/11 ,  H01S3/00

    CPC分类号： H01S3/115

    摘要： A Q-switched laser has its optical cavity defined by two rightangled prisms arranged with their hypotenuse faces towards one another and normal to the optical axis of the laser. The apex lines of the two prisms are perpendicular to one another. The optical cavity contains the laser active medium and means for exciting the medium, and also an electro-optic birefringent Qswitching device aligned with its fast axis parallel to the apex line of one of the prisms. A beam-splitting polariser is located between the Q-switching device and one prism.

    摘要翻译： Q开关激光器具有由两个直角棱镜限定的光学腔，它们的斜边面朝向彼此并且垂直于激光的光轴。 两个棱镜的顶线彼此垂直。 光腔包含激光活性介质和用于激发介质的装置，以及与其平行于一个棱镜的顶点线的快轴对准的电光双折射Q开关装置。 光束分离偏振器位于Q开关器件和一个棱镜之间。

    Semiconductor information storage devices
    8.
    发明授权
    Semiconductor information storage devices 失效
    半导体信息存储设备

    公开(公告)号：US3827034A

    公开(公告)日：1974-07-30

    申请号：US28891072

    申请日：1972-09-14

    申请人： FERRANTI LTD

    发明人： COLACO S

    IPC分类号： G11C11/403 ,  G11C11/404 ,  H01L27/07 ,  H01L27/10 ,  G11C11/24 ,  G11C11/40

    CPC分类号： H01L27/10 ,  G11C11/403 ,  G11C11/404 ,  H01L27/0716

    摘要： A cell of a monolithic semiconductor memory store comprises a bi-directional bipolar transistor, with a capacitance connected to the collector and, with the bipolar transistor capable of conducting in the reverse direction, the capacitance being charged or not charged to store an information bit in the cell, and switching means, such as a field-effect transistor, which is either switched ON or OFF in accordance with the potential difference across the capacitance, there being associated with the cell reading means arranged to produce an output indicative of whether or not the switching means is conducting.

    摘要翻译： 单片半导体存储器存储器的单元包括双向双极晶体管，其电容连接到集电极，并且双极晶体管能够在相反方向导通，该电容被充电或未充电以存储信息位 电池和诸如场效应晶体管的开关装置，其根据电容两端的电位差被切换为ON或OFF，与被设置为产生指示是否进行的输出的单元读取装置相关联的单元读取装置 开关装置正在导通。

    Detection of blemishes on surfaces
    9.
    发明授权
    Detection of blemishes on surfaces 失效
    检测表面上的毛孔

    公开(公告)号：US3803474A

    公开(公告)日：1974-04-09

    申请号：US30971972

    申请日：1972-11-27

    申请人： FERRANTI LTD

    发明人： CLARKE G

    IPC分类号： G01N21/89 ,  G05B1/06

    CPC分类号： G01N21/89

    摘要： A circuit arrangement for use with a detector of faults in a moving surface, the detector comprising a source of a beam of light caused to scan repetitively across the surface transversely to its direction of motion and detection means to collect light emanating from the surface to produce, in response to a change in the radiation collected, a fault signal. The circuit arrangement comprises means for generating an ''''edge slot'''' pulse which coincides with the engagement of the beam and the surface. The duration of the edge-slot pulse is chosen to ensure its existence at any engagement time allowing for unpredictable but limited movements of the edge of the surface. Fault counting is delayed until the edge of the surface (characterised as the first fault detected) is engaged by the beam during the presence of the edge slot pulse. This ensures that any signal received prior to the edge slot does not begin fault counting. The circuit may be modified to incorporate controls for the repositioning of the surface if it is engaged by the beam not during the presence of the edge slot pulse.

    Semiconductor devices
    10.
    发明授权
    Semiconductor devices 失效
    半导体器件

    公开(公告)号：US3772077A

    公开(公告)日：1973-11-13

    申请号：US3772077D

    申请日：1971-04-06

    申请人： FERRANTI LTD

    发明人： MAGEE V

    IPC分类号： H01L21/00 ,  H01L21/288 ,  H01L7/34

    CPC分类号： H01L21/288 ,  H01L21/00 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/0103 ,  H01L2924/01075 ,  Y10S438/974 ,  Y10T428/12528

    摘要： Aluminum of a contact for a semiconductor device is rendered solderable, or a region of the aluminum selectively is rendered solderable, by depositing from a solution of zinc oxide and a hydroxide of an alkali metal a first zinc layer, which is removed, and a second zinc layer initially having an activated surface, and then depositing a nickel layer on the activated zinc surface by reducing an acid solution of a nickel salt.

    摘要翻译： 通过从氧化锌和碱金属的氢氧化物溶液中沉积出第一锌层（其被去除），使半导体器件的接触的铝可焊接，或者铝的区域被选择性地可焊接，并且第二 锌层最初具有活化表面，然后通过还原镍盐的酸溶液在活化的锌表面上沉积镍层。