Real time grating clock for galvanometer scanners in laser scanning
systems
    1.
    发明授权
    Real time grating clock for galvanometer scanners in laser scanning systems 失效
    激光扫描系统中电流计扫描仪的实时光栅时钟

    公开(公告)号:US4178064A

    公开(公告)日:1979-12-11

    申请号:US900460

    申请日:1978-04-27

    Applicant: Peter Mrdjen

    Inventor: Peter Mrdjen

    Abstract: A scanning system which utilizes a resonant mechanical oscillator, such as a galvanometer, to scan a laser beam across a surface of a medium responsive to said laser beam. The laser beam scan velocity across the surface normally would vary sinusoidally because of the resonant nature of the drive system. The data flow, or bit density, of information to be recorded on or read out from the surface, would have a corresponding sinusoidal variation. In order to compensate for this, a grating is provided adjacent the galvanometer and a second laser beam is simultaneously incident on the mirror portion of the rotating galvanometer. As the galvanometer is caused to oscillate, two scanning beams are generated, one scanning the surface and the other scanning across the grating. The grating is arranged to provide a plurality of timing or clocking pulses which are generated in response to the scanning thereof by the laser beam whereby in the writing mode, the writing laser beam is accurately clocked as it is modulated and in the read mode, the timing pulses matches the bit density of the output data, causing the data to be entered into a storage device at the proper time sequence.

    Abstract translation: 使用共振机械振荡器(例如电流计)的扫描系统,以响应于所述激光束扫描激光束穿过介质的表面。 由于驱动系统的谐振特性,穿过表面的激光束扫描速度通常会正弦变化。 要记录在表面上或从表面读出的信息的数据流或位密度将具有对应的正弦变化。 为了补偿这一点,在电流计附近提供光栅,并且第二激光束同时入射在旋转振镜的镜部分上。 当电流计振荡时,产生两个扫描光束,一个扫描表面,另一个扫描横跨光栅。 光栅布置成提供响应于激光束的扫描而产生的多个定时或时钟脉冲,由此在写入模式下,写入激光束在被调制时被精确计时,并且在读取模式中, 定时脉冲与输出数据的位密度相匹配,使数据以适当的时间顺序输入到存储设备中。

    Light emitting diode display apparatus and system
    4.
    发明授权
    Light emitting diode display apparatus and system 失效
    发光二极管显示设备和系统

    公开(公告)号:US3958235A

    公开(公告)日:1976-05-18

    申请号:US492245

    申请日:1974-07-26

    Inventor: Francis A. Duffy

    CPC classification number: G01R13/38 G01R29/0892 G01R9/00

    Abstract: A light emitting diode display apparatus is disclosed wherein a plurality of diodes mounted in a row on a vibrating member are used to create a display. The light emitting diode display may be used as an oscilloscope to display various types of signals. Alternatively, the diode display apparatus may be used in conjunction with a camera system wherein a similar row of radiant energy sensors, such as photocells, are mounted on a vibrating member synchronized with the vibrating member of the display in order to sense the subject matter to be displayed. The camera-display system may be connected together by means of lines or coupled together by means of a telephone system.The purpose of the above abstract is to provide a non-legal technical statement of the disclosure of the contents of the instant patent application and thus serve as a searching-scanning tool for scientists, engineers and researchers. Accordingly, this abstract is not intended to be used in understanding or otherwise comprehending the principles of the present invention hereinafter described in detail, nor is it intended to be used in interpreting or in any way limiting the scope or fair meaning of the claims appended hereto.

    Panel-type multichannel instrument
    5.
    发明授权
    Panel-type multichannel instrument 失效
    面板型多通道仪器

    公开(公告)号:US3635541A

    公开(公告)日:1972-01-18

    申请号:US3635541D

    申请日:1969-05-01

    CPC classification number: G01R13/38

    Abstract: A panel-type multichannel instrument comprises in each measuring channel identical measuring assemblies. These measuring assemblies comprise rotating mirrors capable of being rotated under the effect of measured variables. A device for producing on a common scale an optical indicator is provided such that the indicator is formed by light beams reflected by the rotating mirrors. Auxiliary mirrors are interposed in the path of the light beams reflected by the rotating mirrors between the common scale and the rotating mirrors such that the images produced by the auxiliary mirrors lie on a common straight line in the scale while the path lengths of the light beams from the rotating mirrors to any selected horizontal location on the scale are equalized.

    Abstract translation: 面板式多通道仪器在每个测量通道中包括相同的测量组件。 这些测量组件包括能够在测量变量的作用下旋转的旋转镜。 提供了一种用于在共同尺度上制造光学指示器的装置,使得指示器由由旋转镜反射的光束形成。 辅助反射镜插入由共同标尺和旋转镜之间的旋转镜反射的光束的路径中,使得由辅助镜产生的图像位于标尺中的公共直线上,而光束的路径长度 从旋转镜到刻度上的任何选定的水平位置相等。

    Light deflection apparatus
    8.
    再颁专利
    Light deflection apparatus 失效
    光偏转装置

    公开(公告)号:USRE30806E

    公开(公告)日:1981-11-24

    申请号:US15099

    申请日:1979-02-26

    CPC classification number: G01R13/38 G01D5/28

    Abstract: A deflection apparatus deflects a light beam in accordance with the characteristics of energizing signals to provide a trace of those signal characteristics on a display medium. The assembly includes a plurality of suspension galvanometers each having a coil responsive to an associated one of the signals to deflect a mirror positioned in the path of the light beam which in turn deflects the light beam. The galvanometers are suspended on a rigid supporting structure which is self-aligning. Pole pieces have a plurality of teeth which define secondary air gaps and provide a substantially constant, concentrated flux field for each of the coils. A printed circuit board cooperates with cover members to form a dust free enclosure.

    Vibrating coil assembly
    9.
    发明授权
    Vibrating coil assembly 失效
    振动线圈组件

    公开(公告)号:US4203068A

    公开(公告)日:1980-05-13

    申请号:US959569

    申请日:1978-11-13

    CPC classification number: G01R9/02 G01R13/38 G01R5/10

    Abstract: A vibrating coil assembly for mirror galavanometers, light-beam oscillographs and the like having a mirror and a moving coil suspended by taut wires or ribbons. The ends of the wires nearest the moving coil are provided with eyes and a mounting wire is brought through the eyes and a window in the moving coil to form a figure 8 and clamp the moving coil within it. A stiffening tube for receiving the mirror is pushed over a section of the wire adjacent to one eye. The stiffening tube is cast together with the moving coil and the mounting wire by means of a setting compound.

    Abstract translation: 用于镜面加热计的振动线圈组件,光束示波器等具有通过拉紧的线或带悬挂的反射镜和移动线圈。 最靠近动圈的导线的端部设有眼睛,安装线穿过眼睛和移动线圈中的一个窗口,形成一个图8,并将动线圈夹在其中。 用于接收反射镜的加强管被推到与一只眼睛相邻的线的一部分上。 加强管与移动线圈和安装线一起通过固化剂一起铸造。

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