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49 条记录 (耗时 0.028 秒)

    Electrically controlled optical deflector
    5.
    发明授权
    Electrically controlled optical deflector 失效
    电控光导流板

    公开(公告)号：US4460252A

    公开(公告)日：1984-07-17

    申请号：US285565

    申请日：1981-07-21

    申请人： Patrick Volleau ,  Michel Chaboche ,  Claude Bricot

    发明人： Patrick Volleau ,  Michel Chaboche ,  Claude Bricot

    IPC分类号： G02B26/10 ,  G02B7/182 ,  G02B26/08 ,  G11B7/09 ,  G02B27/17

    CPC分类号： G02B7/1821 ,  G11B7/0925

    摘要： This invention concerns electrically controlled optical deflectors, and more specifically an optical deflector comprising a mirror forming part of an assembly which cam move in relation to a fixed base, the pivotal movements of this assembly being controlled by an electrodynamic motor with a winding through which a variable current passes, and which is situated inside a predetermined magnetic field, the mechanical connection between the movable assembly and the fixed base being provided by a prismatic elastic component.This invention applies in particular to the construction of reading heads to direct an optical beam on to a videodisc track.

    摘要翻译： 本发明涉及电控光偏转器，更具体地说，涉及一种光学偏转器，其包括形成组件的一部分的镜片，该组件凸轮相对于固定底座移动，该组件的枢转运动由具有绕组的电动马达控制， 可变电流通过，并且位于预定磁场内，可移动组件和固定基座之间的机械连接由棱柱形弹性部件提供。 本发明特别适用于将光束引导到视盘轨道上的读取头的构造。

    Optical device for access to a track carried by a data carrier and optical memory system incorporating such a device
    6.
    发明授权
    Optical device for access to a track carried by a data carrier and optical memory system incorporating such a device 失效
    用于访问由数据载体承载的轨道的光学装置和包含这种装置的光学存储器系统

    公开(公告)号：US4344164A

    公开(公告)日：1982-08-10

    申请号：US174564

    申请日：1980-07-04

    申请人： Claude Bricot ,  Dominique Leterme

    发明人： Claude Bricot ,  Dominique Leterme

    IPC分类号： G06K7/015 ,  G11B7/08 ,  G11B7/085 ,  G11B7/12

    CPC分类号： G11B7/12 ,  G11B7/08

    摘要： Optical device for giving access to a track carried on a moving data carrier incorporating a moving element comprising a galvanometric mirror and a focusing objective movable relative to the data carrier and a fixed light energy source incorporating at least one laser emitter. Magnifying optical means of the afocal type are also inserted between the moving element and the light energy source. The magnification is sufficient to ensure that the beam emerging from the optical means completely covers the entrance pupil of the objective. As a result of this arrangement, the beam of light reaching the moving element remains a beam of parallel rays, no matter what the position of said element relative to the light energy source.

    摘要翻译： 光学设备，用于接收携带在移动数据载体上的轨道，该移动数据载体包含移动元件，移动元件包括电流计反射镜和相对于数据载体可移动的聚焦物镜以及包含至少一个激光发射器的固定光能源。 无焦型的放大光学装置也插入在移动元件和光能源之间。 放大倍数足以确保从光学装置出射的光束完全覆盖物镜的入射光瞳。 作为这种布置的结果，不管所述元件相对于光能源的位置如何，到达移动元件的光束都保持平行光束。

    Flexible card with validity checking device
    8.
    发明授权
    Flexible card with validity checking device 失效
    弹性卡带有效检测装置

    公开(公告)号：US5566982A

    公开(公告)日：1996-10-22

    申请号：US275530

    申请日：1994-07-15

    申请人： Jean C. Lehureau ,  Francis Massie ,  Claude Bricot

    发明人： Jean C. Lehureau ,  Francis Massie ,  Claude Bricot

    IPC分类号： G06K19/06 ,  G06K19/08 ,  B42D15/00

    CPC分类号： B42D25/36 ,  B42D25/00 ,  B42D25/23 ,  G02F1/0128 ,  G02F1/1334 ,  G06K19/06046 ,  G06K19/083 ,  B42D2033/26 ,  G02F1/133305 ,  G02F2201/305

    摘要： An identity card or credit card type of card is equipped with a validity-checking device that makes it possible to do away with the use of complementary, sophisticated checking equipment. It results from the association of a structure S.sub.1 comprising at least one layer of piezoelectric material and a structure S.sub.2 comprising a material capable of switching electrically between two optical states (I) and (II) that are different in terms of ocular perception. During the bending of the card, the validity or non-validity of the card can be attested to by the appearance or non-appearance of the validity of the card.

    摘要翻译： 身份证或信用卡类型的卡片配备有一个有效性检查装置，可以避免使用互补，复杂的检查设备。 这是由包括至少一层压电材料的结构S1和包括能够在眼睛感知方面不同的两种光学状态（I）和（II）之间电连接的材料）的结构S2的结合产生的。 在卡的弯曲期间，卡的有效性或非有效性可以通过卡的有效性的外观或不出现来证明。

    Process and optical device for generating signals controlling the position of a scanning spot of the tracks of a data carrier
    9.
    发明授权
    Process and optical device for generating signals controlling the position of a scanning spot of the tracks of a data carrier 失效
    用于产生控制数据载体的轨道的扫描点的位置的信号的处理和光学装置

    公开(公告)号：US4562564A

    公开(公告)日：1985-12-31

    申请号：US473539

    申请日：1983-03-09

    申请人： Claude Bricot ,  Pierre Berthet ,  Jean-Louis Gerard

    发明人： Claude Bricot ,  Pierre Berthet ,  Jean-Louis Gerard

    IPC分类号： G11B7/085 ,  G11B7/00 ,  G11B7/004 ,  G11B7/007 ,  G11B7/08 ,  G11B7/09 ,  G11B27/19 ,  G11B27/30

    CPC分类号： G11B27/19 ,  G11B27/3027 ,  G11B7/00745 ,  G11B7/0938

    摘要： The process makes it possible to generate on the basis of discrete preetching elements or flags, the radial tracking error and/or focusing error signals. The flags comprise portions displaced with respect to the mean axis of the tracks to be followed. According to a first variant, each track comprises portions displaced on either side of the axis. According to a second variant the flags comprise portions alternately displaced to one and then the other side thereof. In response to the passages of these portions, windows are generated and the pulses supplied by the photodetectors of the interaction of these portions on the focused scan beam are compared between successive windows.

    摘要翻译： 该过程使得可以在离散预取元素或标志，径向跟踪误差和/或聚焦误差信号的基础上生成。 标志包括相对于要跟踪的轨道的平均轴线移位的部分。 根据第一变型，每个轨道包括在轴的任一侧上移位的部分。 根据第二变型，标志包括交替地移位到其一侧和另一侧的部分。 响应于这些部分的通道，产生窗口，并且在连续窗口之间比较由光电检测器提供的这些部分在聚焦扫描光束上的相互作用的脉冲。