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1.发明授权
公开(公告)号：US5867296A
公开(公告)日：1999-02-02
申请号：US765370
申请日：1997-03-19
CPC分类号： H04N1/0635 , G02B26/10 , H04N1/0607
摘要： A light beam deflection unit is formed of a light-transmissive deflection prism extending in the direction of an optical axis and of a carrier prism. The deflection prism has a light entry face oriented essentially perpendicular to the optical axis, a reflection face proceeding obliquely relative to the optical axis and a light exit face. The carrier prism is joined to the deflection prism at the reflection face and supplements the latter to form a composite unit essentially symmetrical relative to the optical axis that is seated rotatable around the optical axis. For the purpose of reducing air turbulence upon rotation of the composite unit, a hollow-cylindrical element whose cylinder axis essentially coincides with the optical axis and whose inside diameter at least corresponds to the diameter of the light beam incident onto the light entry face and that is connected to the composite unit is arranged in front of the light entry face. Position errors of the deflected light beam are minimized due to the reduction of air turbulence, as a result whereof a uniform exposing and, thus, a high reproduction quality are achieved given employment of the light beam deflection unit in a recording apparatus.
摘要翻译： PCT No.PCT / DE96 / 00795 Sec。 371日期1997年3月19日 102（e）1997年3月19日PCT PCT 1996年5月8日PCT公布。 出版物WO96 / 35974 日期：1996年11月14日光束偏转单元由沿光轴方向延伸的透光偏转棱镜和载体棱镜形成。 偏转棱镜具有基本上垂直于光轴定向的光入射面，相对于光轴倾斜地延伸的反射面和光出射面。 载体棱镜在反射面处连接到偏转棱镜并补充反射面，以形成基本上相对于可围绕光轴旋转的光轴对称的复合单元。 为了在复合单元旋转时减少空气湍流的目的，一种中空圆柱形元件，其圆柱轴线基本上与光轴重合，并且其内径至少对应于入射到光入射面上的光束的直径，并且 连接到复合单元布置在光入射面的前面。 偏转的光束的位置误差由于空气湍流的减少而被最小化，结果由于在记录装置中使用光束偏转单元而实现了均匀的曝光以及因此的高再现质量。
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公开(公告)号：US4636064A
公开(公告)日：1987-01-13
申请号：US703712
申请日：1985-02-21
CPC分类号： G03B27/60
摘要： A device for automatic loading of film material on a suction plate by transport roller pairs arranged at two oppositely disposed ends of the suction plate. One pair receives the film material and the other pair further transports the film material. At the two other lateral sides or ends of the suction plate, a roller is respectively provided extending over an entire side of the plate. A cloth can be wound on this roller such that the roller and cloth are so arranged that they respectively form a blind covering the suction plate up to and overlapping lateral edges of the film material.
摘要翻译： 一种用于通过设置在吸盘的两个相对设置的端部处的输送辊对来自动将膜材料装载在吸盘上的装置。 一对接收薄膜材料，另一对则进一步输送薄膜材料。 在吸板的另外两侧或两端，分别设置在板的整个侧面上延伸的辊。 可以在该辊上缠绕布，使得辊和布被布置成使得它们分别形成盲板覆盖吸板到膜材料的横向边缘并与其重叠。
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公开(公告)号：US4498108A
公开(公告)日：1985-02-05
申请号：US465904
申请日：1983-02-14
CPC分类号： H04N1/4058
摘要： A screen for reproducing continuous-tone pictures of the kind which has an orthogonal, equally spaced screen structure and which is rotated through 45.degree. from the direction of scanning. In this invention, the individual screen dots are split up into four parts by lines extending parallel and perpendicular to the direction of reproduction which pass through the centers of the screen dots, thus producing square part screen-configuration which, in two opposite corners, each contain covered segments which derive from two different screen dots. Prior to reproduction, one such screen-configuration is stored for each tonal value liable to occur and at the time of reproduction these are called up again for selected tonal values and reproduced under the control of the scanning process.
摘要翻译： 用于再现具有正交等间隔的屏幕结构并且从扫描方向旋转45度的类型的连续色调图像的屏幕。 在本发明中，通过平行且垂直于通过屏幕点的中心的再现方向将各个屏幕点分成四部分，从而产生方形部分屏幕配置，其在两个相对的角部分别各自 包含衍生自两个不同屏幕点的覆盖片段。 在再现之前，对于易于发生的每个色调值存储一个这样的屏幕配置，并且在再现时，再次调用所选择的色调值并在扫描过程的控制下再现。
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公开(公告)号：US5128879A
公开(公告)日：1992-07-07
申请号：US566371
申请日：1990-08-17
CPC分类号： B41F33/0027
摘要： In the line-by-line recording of films (15') for producing offset printing forms or in the line-by-line exposure of offset printing plates from recording data, i.e. density values of a line, the setting values for the individual zone screws are directly calculated from the density values and are stored or, respectively, directly forwarded to the printing machine (80). Before the forwarding of the setting values to the printing machine (80), density values are advantageously converted into the setting values with masks that, with reference to printing areas, printing surface in the pages (50) and with reference to the register system of the printing machine (80) as well as with reference to the characteristic data of a page (50), contain the allocation of the setting values of the zone screws calculated from the density values of the page (50). These masks can preferably be produced with a PC (60); the setting values can be intermediately stored or can be directly forwarded via an interface to the zone control (70) of the printing machine (80).
摘要翻译： PCT No.PCT / DE89 / 00088 Sec。 371日期1990年8月17日第 102（e）日期1990年8月17日PCT提交1989年2月16日PCT公布。 出版物WO89 / 07525 日期为1989年8月24日。在逐行记录用于制造胶版印刷的胶片（15'）或者从记录数据（即线的密度值）的胶印板的逐行曝光中， 各个区域螺钉的设定值直接由密度值计算，并分别存储或分别直接转发到打印机（80）。 在将设定值转发到打印机（80）之前，密度值有利地被转换成具有掩模的设置值，该掩码相对于打印区域而在页面（50）中的打印表面并且参考记录系统 打印机（80）以及参照页面（50）的特征数据，包含根据页面（50）的浓度值计算的区域螺钉的设定值的分配。 这些掩模可以优选用PC（60）制造; 设置值可以被中间存储，或者可以经由接口直接转发到打印机（80）的区域控制（70）。
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公开(公告)号：US4257042A
公开(公告)日：1981-03-17
申请号：US912398
申请日：1978-06-05
申请人： Eckhard Lindemann , Jorg Broning , Dietrich Asbach
发明人： Eckhard Lindemann , Jorg Broning , Dietrich Asbach
摘要： In an electronic pattern generator characters to be recorded are displayed on the screen of a cathode ray tube and then exposed on a recording medium mounted on a carrier, which is displacable in a plane parallel to the plane of the screen.The characters are displayed from video-data recallable from a store. The recalled video-data are transformed into a first video signal for the brightness control of the electron beam of the cathode ray tube into first deflection signals for the beam and into displacement signals for the carrier.For controlling the make-up and composing process the characters are displayed identically on a further screen of a soft copy terminal independently of the display on the screen of the cathode ray tube.By identical display it is understood, that the various type fonts and sizes of characters are not displayed in an unitary fashion, but in the original font of writing, as they will appear later in the typographical composition on the recording medium.By identical display it is further understood, that also the appropriate displacement motions of the carrier are taken into account when displaying the soft copy for control purpose.The identical display is achieved by storing the first video signal and transforming it into a second video signal for the soft copy terminal with the help of different read-in and read-out signals for the storage means and different second deflection signals for the screen of the soft copy terminal.
摘要翻译： 在电子图案发生器中，要记录的字符被显示在阴极射线管的屏幕上，然后暴露在安装在载体上的记录介质上，该载体可平行于屏幕平面移动。 从可从商店召回的视频数据显示字符。 被调用的视频数据被变换为第一视频信号，用于将阴极射线管的电子束的亮度控制转换为用于光束的第一偏转信号和用于载体的位移信号。 为了控制化妆和合成处理，独立于阴极射线管的屏幕上的显示，字符在软复制终端的另一屏幕上显示相同。 通过相同的显示，可以理解，字符的各种类型的字体和大小不以单一的方式显示，而是以原始的书写字体显示，因为它们将在稍后在记录介质上的排版组合中出现。 通过相同的显示，进一步理解，当显示用于控制目的的软拷贝时，也考虑到载体的适当位移运动。 通过存储第一视频信号并且借助于存储装置的不同的读入和读出信号将其转换成用于软拷贝终端的第二视频信号来实现相同的显示，并且用于屏幕的不同的第二偏转信号 软拷贝终端。
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公开(公告)号：US06316765B1
公开(公告)日：2001-11-13
申请号：US09708287
申请日：2000-11-08
申请人： Eckhard Lindemann , Thomas Zelenka
发明人： Eckhard Lindemann , Thomas Zelenka
IPC分类号： G01D534
CPC分类号： G01B11/272 , G03F7/24
摘要： A device for detecting the position of rotating objects, having an optical signal transmitter and an optical sensor, includes a stationary light source provided in the optical signal transmitter for generating along an optical axis a light beam directed onto a rotating object, the optical sensor being stationary and being arranged on the optical axis on a side of the rotating object located opposite the optical signal transmitter, in the region of the optical axis of the signal transmitter and the sensor, the rotating object being formed with a diametrically extending bore having an entrance window for the light beam and an opposite exit window for the light beam, a slit diaphragm arranged in vicinity of the exit window, and an objective for focusing the light beam onto the slit diaphragm arranged in vicinity of the entrance window, the slit of the slit diaphragm being aligned with a transverse extent thereof at least approximately perpendicularly to an axis of rotation of the rotating object.
摘要翻译： 一种用于检测具有光信号发射器和光学传感器的旋转物体的位置的装置，包括设置在光信号发射器中的固定光源，用于沿着光轴产生指向旋转物体的光束，光传感器为 在旋转物体的与光信号发射器相对的一侧的光轴上，在信号发射器和传感器的光轴的区域中的光轴上布置有旋转物体，旋转物体形成为具有入口的径向延伸的孔 用于光束的窗口和用于光束的相对的出射窗口，布置在出射窗附近的狭缝膜片和用于将光束聚焦到布置在入口窗口附近的狭缝膜片上的物镜， 狭缝光阑与其横向方向至少大致垂直于旋转轴的旋转轴线对齐 对象。
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