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公开(公告)号：US4251157A
公开(公告)日：1981-02-17
申请号：US57380
申请日：1979-07-13
申请人： Bernhard Knor , Bernd Payrhammer , Helmut Wahl
发明人： Bernhard Knor , Bernd Payrhammer , Helmut Wahl
CPC分类号： G03D15/001 , G03B27/80
摘要： A strip of negatives is transported over a slit extending transverse to transport, and the image of successive slit-like elements of each original is projected onto the row of photosensitive zones of a CCD image sensor unit. A photodetector also receives the image of each slit-like element, either simultaneously with the CCD image sensor unit or earlier at a more upstream location, and generates an output signal indicating the average transparency of the whole slit-like image element. The average-transparency signal is used to control the clocking frequency of the clock signal which drives the CCD image sensor unit, either by changing the clocking frequency for each read-out of the image sensor unit or by changing the clocking frequency once per original, in the latter case a peak detector circuit being used to ascertain the transparency of the maximum transparency slit-like element of each original. The CCD image sensor unit may be of the type whose clock signal identically establishes the read-out rate of the photosensitive zones of the CCD and the charge-accumulation interval thereof, or may be of the type whose clock signal establishes the charge-accumulation interval without establishing the read-out rate.
摘要翻译： 一条负片沿横向延伸的狭缝输送，每个原稿的连续的狭缝状元件的图像被投影到CCD图像传感器单元的一行感光区上。 光电检测器还可以与CCD图像传感器单元同时接收每个狭缝状元件的图像，或者在较上游位置接收每个狭缝状元件的图像，并产生指示整个狭缝状图像元素的平均透明度的输出信号。 平均透过度信号用于控制驱动CCD图像传感器单元的时钟信号的时钟频率，通过改变图像传感器单元的每次读出的时钟频率或者通过每个原始时钟改变一次时钟频率， 在后一种情况下，使用峰值检测器电路来确定每个原稿的最大透明度狭缝状元件的透明度。 CCD图像传感器单元可以是其时钟信号相同地建立CCD的感光区域的读出速率及其电荷累积间隔的类型，或者可以是其时钟信号建立电荷累积间隔的类型 而不建立读出率。
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2.发明授权
公开(公告)号：US4176964A
公开(公告)日：1979-12-04
申请号：US830867
申请日：1977-09-06
申请人： Bernhard Knor , Bernd Payrhammer , Helmut Treiber
发明人： Bernhard Knor , Bernd Payrhammer , Helmut Treiber
CPC分类号： G03B27/72
摘要： Light from a light source is transmitted through an original at a scanning station to a light detector. A rotating scanning disk located in the path of this light is provided with equiangularly spaced radial scanning slots. A light-blocking plate located between the light source and the scanning disk defines a scanning slot extending transverse to the transport direction of the original. Light passing through both the original and the transverse scanning slot is projected as a slot image onto the surface of the scanning disk. The radial slots and the transverse slot cooperate to define a scanning spot which sweeps across the original, and thereby performs one line-scan operation, as one radial slot sweeps across the slot image on the scanning disk. The angular span between adjoining radial slot is greater than that of the slot image so that, during intermediate intervals between successive line-scan operations, light transmitted through the original does not reach the light detector. During the intermediate time intervals, reference light from the light source is directed onto the light detector along a reference light path not passing through the original. An evaluating circuit receives both the signal produced by the light detector during a line-scan operation and the signal produced during the preceding or subsequent intermediate time interval, and in dependence upon the values of both signals produces a signal whose value indicates the density of the extreme-density scanned spot on the scanned original.
摘要翻译： 来自光源的光通过扫描站处的原稿传输到光检测器。 位于该光路中的旋转扫描盘设置有等角度间隔开的径向扫描槽。 位于光源和扫描盘之间的遮光板限定横向于原稿的传送方向延伸的扫描槽。 通过原稿横向扫描狭缝的光线作为插槽图像被投影到扫描盘的表面上。 径向狭槽和横向狭缝合作以限定扫过原稿的扫描点，从而进行一次扫描扫描操作，因为一个径向槽扫过扫描盘上的狭槽图像。 相邻的径向槽之间的角度跨度大于缝隙图像的角度跨度，使得在连续行扫描操作之间的中间间隔期间，透过原稿的光线未到达光检测器。 在中间时间间隔期间，来自光源的参考光沿着不通过原稿的参考光路被引导到光检测器上。 评估电路在线扫描操作期间接收由光检测器产生的信号和在前一或之后的中间时间间隔期间产生的信号，并且根据两个信号的值产生一个信号，该信号的值表示 扫描原稿上的极光扫描点。
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公开(公告)号：US4704026A
公开(公告)日：1987-11-03
申请号：US779700
申请日：1985-09-24
CPC分类号： G03B27/735
摘要： A strip of originals is copied onto a band of copy material at high speed using a highly automated copier which measures the densities of the originals in the primary colors and calculates exposures from the densities. The calculated exposures for each original in each primary color are recorded. The band of exposed copy material is developed and the copies are evaluated. Unsatisfactory copies are marked. The band of copy material is subsequently cut into individual copies and the unsatisfactory copies, as well as the corresponding originals, are collected. These originals are recopied in a second copier which is far less sophisticated and expensive than the first copier. The exposures used to recopy an original are derived by applying correction factors to the recorded exposures for the original. By performing the recopying procedures, which are rather slow because they require manual operations, in a second copier, the output of the high speed copier can be maintained.
摘要翻译： 使用高度自动化的复印机将原稿带复制到高速复制材料带上，该复印机测量原色的原色的密度并计算密度的曝光。 记录每个原色中每个原始图像的计算曝光。 开发出暴露的复制材料的带，并对拷贝进行评估。 不满意的副本被标记。 随后将复印材料带切割成单独的副本，并收集不合格的副本以及相应的原件。 这些原件在第二台复印机中重复使用，这比第一台复印机要复杂和昂贵。 用于复印原件的曝光是通过对原始记录的曝光应用校正因子得出的。 通过执行由于需要手动操作而相当缓慢的重新启动程序，在第二复印机中，可以维持高速复印机的输出。
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公开(公告)号：US4082465A
公开(公告)日：1978-04-04
申请号：US790136
申请日：1977-04-22
申请人： Horst Bickl , Helmut Treiber , Gunter Findeis , Bernhard Knor , Bernd Payrhammer , Berthold Fergg
发明人： Horst Bickl , Helmut Treiber , Gunter Findeis , Bernhard Knor , Bernd Payrhammer , Berthold Fergg
CPC分类号： G03B27/72 , G01N21/5911
摘要： Each original in a strip of such originals is scanned during longitudinal travel of the strip using a scanning spot which repeatedly traverses a stationary scan line extending transverse to the direction of strip travel. The scanning spot has a scanning speed such that the scanning spot travels from one to the other end of the stationary scan line in a time less than the time in which the strip travels a distance equal to the breadth of the scan line. The scanning spot which repeatedly traverses the scan line is generated using a light shield having a slit which delimits the scan line and a rotating disk having equiangularly spaced apertures which move through a stationary light beam passing through the moving strip of originals.
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公开(公告)号：US4523839A
公开(公告)日：1985-06-18
申请号：US466976
申请日：1983-02-16
申请人： Bernd Payrhammer , Bernhard Knor
发明人： Bernd Payrhammer , Bernhard Knor
CPC分类号： G03B27/80
摘要： An exposed and developed film strip having a series of frames is conveyed by a copying station via a pair of rolls driven by a motor. Two or more photoelectric sensors upstream of the copying station generate signals indicative of the transparency of the film strip. The sensors are located on a reference line which extends normal to the longitudinal direction of the film strip. The signals from the sensors are processed to yield processed signals which are representative of significant transparency changes. The processed signals are evaluated to determine the definition of each frame and thereby determine whether a frame is worth copying. In order to locate the frames, the processed signals derived from each sensor are delivered to a common AND gate. The gate emits a pulse when processed signals from all sensors arrive at the gate simultaneously. This is a strong indication that an edge of a frame is in register with the reference line on which the sensors are located. The presence of an edge may be verified by comparing the known length of a frame, or the known distance of separation between neighboring frames, with the distance travelled by the film strip during the time interval between detection of consecutive edges. The motor which advances the film strip is controlled in dependence upon the results of the evaluation of the processed signals and in dependence upon the pulses emitted by the AND gate.
摘要翻译： 具有一系列框架的曝光和显影的胶片条由复印台通过由电动机驱动的一对辊传送。 在复印台上游的两个或多个光电传感器产生指示胶片条的透明度的信号。 传感器位于垂直于胶片条纵向延伸的参考线上。 来自传感器的信号被处理以产生代表显着透明度变化的处理信号。 评估处理后的信号以确定每个帧的定义，从而确定帧是否值得复制。 为了定位帧，从每个传感器得到的经处理的信号被传送到公共的与门。 当来自所有传感器的处理信号同时到达门时，门发出脉冲。 这是一个很强的指示，即帧的边缘与传感器所在的参考线对齐。 可以通过将帧的已知长度或相邻帧之间的已知分离距离与在连续边缘的检测之间的时间间隔期间由胶片条行进的距离进行比较来验证边缘的存在。 根据被处理信号的评估结果，并根据AND门发出的脉冲来控制使胶片条前进的电动机。
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