PROCESS AND DEVICE FOR SYNCHRONISING THE PICKING-UP OF MONOCHROME AND COLOUR PICTURES BY MEANS OF PHOTOSENSITIVE LINE SENSORS
    111.
    发明申请
    PROCESS AND DEVICE FOR SYNCHRONISING THE PICKING-UP OF MONOCHROME AND COLOUR PICTURES BY MEANS OF PHOTOSENSITIVE LINE SENSORS 审中-公开
    方法和系统同步单色和彩色拍摄感光行传感器的照片

    公开(公告)号:WO1995001042A1

    公开(公告)日:1995-01-05

    申请号:PCT/DE1994000725

    申请日:1994-06-27

    Abstract: A process and device are disclosed for synchronising the picking-up of monochrome and colour pictures by means of photosensitive line sensors. A line scanning pattern is generated by a counting device and at the moment when an impulse of the incremental generator is received the timer measures by means of a computer and of the programmable counting arrangement the phase position of the line scanning pattern generated by the counting arrangement, compares said line scanning pattern with an associated calculated or tabled set value and uses the thus obtained phase difference in order to influence the count of a counter connected upstream of the line counter (CT2) (Figures 1 and 2). The time decomposes the measurement lines of the picture pick-up device into two or more scanning lines when the integration time of the photosensitive lines within the measurement line results in an exposure higher than the operating limit of the sensors.

    Abstract translation: 本发明涉及一种方法和用于与感光行传感器同步单色和彩色图像的图像记录的配置。 通过产生一个线光栅的可编程计数装置,随着计算机的辅助下和可编程计数排列计时器测量在增量编码器的一个脉冲的到达时间由计数装置产生的线光栅的相位位置时,其与相关联的计算的或制表设定点和比较 由此获得的相位差用于影响在其计数范围中的行计数器CT2上游计数(图1和图2)。 计时器分解所述图像记录装置的测量线在当所述测量线内的感光线的积分时间产生上述传感器的调制限制的曝光的两个或更多的扫描线。

    BRAKED MEDIA TRANSPORT FOR LASER SCANNERS
    112.
    发明申请
    BRAKED MEDIA TRANSPORT FOR LASER SCANNERS 审中-公开
    用于激光扫描仪的BRAKED媒体传输

    公开(公告)号:WO1985002274A1

    公开(公告)日:1985-05-23

    申请号:PCT/US1984001843

    申请日:1984-11-13

    Abstract: A transport (11) for a laser writing and reading system in which a carriage (15) is propelled by a falling mass, either its own or an auxiliary mass. The falling mass works against a hydraulic cylinder (23) and piston in which hydraulic fluid is displaced from the cylinder. An adjustable valve limits the flow of hydraulic fluid out of the cylinder so that the fall of the mass, and hence the carriage is braked to a uniform velocity. The system also includes a laser (33) having a beam (31) for scanning in a line transverse to the direction of motion of the carriage. A photosensitive medium (18) is disposed to receive the scanning radiation. Either the laser or the photosensitive medium may be mounted on the carriage, with the other mounted in the fixed position in optical communication therewith. A servo system (Fig. 7) receives a signal representing velocity of the carriage and compares it to a first reference signal representing desired carriage velocity. The comparison yields an error signal which is used to adjust the adjustable valve (28) acting as a variable brake for the transport. A second selectable reference signal is provided so that the first reference signal can be bypassed when the carriage is reset at high velocity or is at rest. By controlling the rate of fluid flow through the valve, the mass will fall with uniform velocity, thereby propelling the carriage at a uniform, vibration-free rate.

    Abstract translation: 一种用于激光写入和读取系统的传送器(11),其中托架(15)由落下的质量块或其自身或辅助质量块推动。 液压缸(23)和液压油从液压缸移动的活塞。 可调节阀将液压流体流出气缸,使得质量的下降,因此滑架被制动成均匀的速度。 该系统还包括一个激光器(33),该激光器(33)具有用于沿与滑架运动方向横切的线扫描的光束(31)。 光敏介质(18)设置成接收扫描辐射。 激光或感光介质可以安装在滑架上,另一个安装在固定位置上,与光学通信。 伺服系统(图7)接收表示滑架速度的信号,并将其与表示所需载运速度的第一参考信号进行比较。 该比较产生误差信号,该误差信号用于调节用作运输的可变制动器的可调节阀(28)。 提供第二可选参考信号,使得当滑架以高速度复位或静止时,第一参考信号可以被旁路。 通过控制通过阀的流体流量,质量将以均匀的速度下降,从而以均匀的无振动速率推动滑架。

    DEVICE AND METHOD FOR EXPOSING PHOTOSENSITIVE PLATES FOR PRINTING PRESSES
    114.
    发明申请
    DEVICE AND METHOD FOR EXPOSING PHOTOSENSITIVE PLATES FOR PRINTING PRESSES 审中-公开
    用于曝光印刷机的曝光光敏印版的装置和方法

    公开(公告)号:WO0223278A2

    公开(公告)日:2002-03-21

    申请号:PCT/EP0103806

    申请日:2001-04-04

    Inventor: WATTYN BART

    Abstract: The invention relates to a device and a method for exposing photosensitive plates (33) for printing presses, comprising controlled laser exposure apparatus and a conveyor system for moving forward the photosensitive plates. The problem with the plate exposers at present is that they are not sufficiently accurate. A device is therefore provided whereby the controlled laser exposure apparatus (63) comprises means (1, 20) for measuring and compensating the variances in the laser beam orientation. The controlled laser exposure apparatus (63) comprises a software control (21). Another problem is that one laser source cannot bridge the scanning of photosensitive plates (200) with great width. Two laser sources (2) synchronised with each other are therefore provided. The invention further relates to a housing for a device such as specified above.

    Abstract translation: 本发明涉及用于曝光用于印刷机的光敏板(33)的设备和方法,包括受控激光曝光设备和用于使光敏板向前移动的传送系统。 目前印版曝光机的问题在于它们不够准确。 因此提供一种装置,由此受控激光曝光设备(63)包括用于测量和补偿激光束取向上的变化的装置(1,20)。 受控激光曝光设备(63)包括软件控制器(21)。 另一个问题是一个激光源不能以很大的宽度桥接光敏板(200)的扫描。 因此提供了两个彼此同步的激光源(2)。 本发明还涉及用于如上所述的设备的外壳。

    BEAM POSITION SENSOR FOR A LIGHT BEAM SCANNER
    118.
    发明申请
    BEAM POSITION SENSOR FOR A LIGHT BEAM SCANNER 审中-公开
    光束扫描仪的光束位置传感器

    公开(公告)号:WO1991014192A1

    公开(公告)日:1991-09-19

    申请号:PCT/US1991001313

    申请日:1991-02-27

    Abstract: A beam position sensor for a beam scanner is disclosed for use in a laser printer. The printer comprises three diode lasers each of which emits at a different wavelength. The beams from the three lasers are combined by the use of dichroic plates to form one combined beam. The combined beam is scanned onto a receiving medium by a polygon. The beam position sensor of the present invention is adapted to sense the position of the polygon in order to provide a synchronizing signal which will insure that each raster line in the printer is started at the proper position. The beam position sensor includes a diode laser and optics for projecting a beam from the laser onto the polygon. The beam is reflected back from the polygon into a photodetector which effects the start of a new raster line at the appropriate time. In order to minimize the number of optical elements in the beam position sensor and to simplify the device, the diode laser and the photodetector are located along the same optical axis.

    Abstract translation: 描述了用于在激光打印机中使用的光束读取设备的光束位置检测器。 该打印机包括三个二极管激光器,每个激光器以不同的波长发射。 这三个激光器的光束通过二向色板(18,20)组合成一个组合光束。 组合光束由多边形(40)在接收介质(46)上扫描。 本发明的光束位置检测器(102)适于检测多边形(40)的位置以提供定时信号,该定时信号将确保打印机框架的每条线在适当位置被启动。 。 光束位置检测器(102)包括二极管激光器(121)和用于将激光器(120)的光束投射到多边形(40)上的光学元件(122,126)。 光束的反射通过光检测器(132)中的多边形(40)返回,该检测器在适当的时间开始新的光栅线。 为了减少光束位置检测器(102)中的光学元件的数量并简化器件,二极管激光器(121)和光电检测器(132)沿着相同的光轴( A“)。

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