公开(公告)号：US4585338A

公开(公告)日：1986-04-29

申请号：US663991

申请日：1984-10-22

申请人： Wilhelm Nitsch ,  Walter Kieslich ,  Helmut Treiber

发明人： Wilhelm Nitsch ,  Walter Kieslich ,  Helmut Treiber

IPC分类号： G02B7/08 ,  G02B7/10 ,  G03B27/34 ,  G03G15/041 ,  G03B27/40

CPC分类号： G03B27/34 ,  G02B7/10

摘要： In a photographic copying apparatus, in which the plane of the original and the plane of the copying material are positioned at the stable distance from each other, an objective has two optical elements which are adjustable relative to a reference position by means of the associated step motors in the axial direction so as to thereby adjust an image scale and a focus distance. A computer for controlling the step motors and two memory devices, connected to the computer, are provided in the apparatus. The data of the objective characteristics are stored in the first memory and specific apparatus data, as well as individual user's data, are programmed by a user and stored in the second memory. The computer controls the step motors in accordance with the capacities of the two memory devices.

摘要翻译： 在其中原稿的平面和复印材料的平面位于彼此稳定距离的照相复印设备中，物镜具有两个光学元件，其通过相关的步骤相对于参考位置可调节 电动机沿轴向方向，从而调整图像尺度和对焦距离。 在该装置中设置有用于控制步进电机和连接到计算机的两个存储装置的计算机。 客观特性的数据存储在第一存储器中，特定装置数据以及各个用户的数据由用户编程并存储在第二存储器中。 计算机根据两个存储器件的容量控制步进电机。

公开(公告)号：US4566784A

公开(公告)日：1986-01-28

申请号：US663992

申请日：1984-10-22

申请人： Wilhelm Nitsch

发明人： Wilhelm Nitsch

IPC分类号： G03B27/72 ,  G03B1/58 ,  G03B27/58

CPC分类号： G03B27/587 ,  G03B1/58

摘要： In a photographic copying apparatus, a device for threading a starting end of a new copying paper roll includes drive rollers, a guide support for the advanced paper and a pivotable flap which periodically closes on the paper when the advancement is interrupted for a threading process. An opening is formed in the flap to produce a test copy for controlling the operation of the apparatus. An exposure control device loads the test copy with empirically determined amounts of light when no negative is present on a negative platform of a printing station.

摘要翻译： 在照相复印装置中，用于穿过新的复印纸卷的起始端的装置包括驱动辊，用于高级纸的引导支撑件和当推进被中断以进行螺纹加工时周期性地关闭纸张的可枢转折板。 在翼片中形成开口以产生用于控制装置的操作的测试副本。 曝光控制装置在印刷台的负平台上没有负片时，以经验确定的光量加载测试副本。

公开(公告)号：US5307114A

公开(公告)日：1994-04-26

申请号：US922049

申请日：1992-07-29

申请人： Wilhelm Nitsch ,  Erich Nagel

发明人： Wilhelm Nitsch ,  Erich Nagel

IPC分类号： G03B27/32 ,  G03B27/46 ,  G03B27/53 ,  G03B27/58 ,  G03B27/60 ,  G03B29/00

CPC分类号： G03B27/462 ,  G03B27/32 ,  G03B27/585 ,  G03B27/588 ,  G03B27/60

摘要： Apparatus for making prints of exposed and developed film frames on discrete sheets of photographic paper and for developing the sheets has a copying station for successive exposed and developed film frames and a printing station where a discrete sheet of photographic paper receives an image of the frame at the copying station. A platform at the printing station carries a turntable which can change (when necessary) the orientation of a sheet, e.g., through 90.degree., to thus properly position a larger or smaller sheet for reception of the image. The turntable can receive sheets which are severed from different webs of unexposed photographic material, and each such web has a different width. The turntable can attract a sheet by suction during turning and/or during exposure. Such turntable can cooperate with one or more conveyors to maintain a sheet at the printing station in a predetermined plane during imaging of a film frame.

摘要翻译： 用于在相纸的离散片上制作曝光和显影的胶片框的印刷品和用于显影纸张的装置具有用于连续曝光和显影的胶卷框架的复印台和印刷站，其中相纸的离散纸张接收帧的图像 复印台。 印刷台上的平台载有可以（例如通过90度）改变（如果需要）片材的取向的转台，从而适当地定位用于接收图像的更大或更小的片材。 转台可以接收从不受曝光的照相材料的不同网片切断的片材，并且每个这种幅材具有不同的宽度。 转盘可以在转动和/或曝光期间通过吸力吸引纸张。 这样的转盘可以与一个或多个输送机配合，以便在胶片框架成像期间在预定平面内将印张位置保持在打印站。

公开(公告)号：US4967222A

公开(公告)日：1990-10-30

申请号：US414947

申请日：1989-09-29

申请人： Wilhelm Nitsch

发明人： Wilhelm Nitsch

IPC分类号： B65H23/192 ,  G03D3/08 ,  G03D3/13

CPC分类号： G03D3/132

摘要： A web of spliced-together exposed photographic films is introduced into a developing machine at a variable speed. In order to ensure that each increment of the web is treated in the developing tank of the developing machine for an optimum interval of time, the speed of web advancing rolls at the inlet of the developing tank is monitored and the thus obtained signals are used to regulate the speed of advancing rolls at the outlet of the developing tank in such a way that the two speeds match but the speed of advancing rolls at the outlet is changed to conform to changed speed of advancing rolls at the inlet with a delay corresponding to the optimum interval of time. The length of that portion of the web which extends between the two sets of advancing rolls is varied simultaneously with changes of the speed of advancing rolls at the outlet.

摘要翻译： 拼接在一起的曝光的照相胶片的网以可变的速度被引入显影机。 为了确保在显影机的显影槽中的每个增量在最佳时间间隔内被处理，在显影槽的入口处的卷筒纸行进辊的速度被监测，并且将由此得到的信号用于 调节在显影槽出口处推进辊的速度，使得两个速度相匹配，但是出口处的推进辊的速度改变以符合入口处的推进辊的改变速度，其延迟对应于 最佳时间间隔。 在两组前进辊之间延伸的幅材的该部分的长度随着出口处的推进辊的速度的变化而变化。

公开(公告)号：US4315686A

公开(公告)日：1982-02-16

申请号：US132811

申请日：1980-03-24

申请人： Berthold Fergg ,  Wilhelm Nitsch ,  Mathias Pflugbeil

发明人： Berthold Fergg ,  Wilhelm Nitsch ,  Mathias Pflugbeil

IPC分类号： G03B27/72 ,  G03B27/80

CPC分类号： G03B27/72

摘要： A photographic copying machine wherein copying light which issues from a light source and is directed toward an original is caused to pass through a light intensity weakening shutter of the venetian blind type. The shutter is adjusted to change the rate of passage of light therethrough in dependency on the intensity of signals which are generated by the exposure control system of the copying machine and denote the anticipated exposure times in the red, green and blue colors. If the anticipated exposure times are too short, the intensity of copying light which impinges upon the copying material is reduced by a stepwise adjustment of the venetian blind type shutter. Inversely, the shutter is caused to permit the passage of more light if the signals which are generated by the exposure control system denote a relatively long exposure times in the three colors. The switch-over from the higher intensity to the lower intensity takes place at lower density of the original than that corresponding to the switch-over in the opposite direction. An additional shutter is opened only with a delay corresponding to at least one-half the time period needed for adjustment of the venetian-blind shutter, in the event that such adjustment takes place.

摘要翻译： 使得将从光源发出并且朝向原稿的光复制的照相复印机通过威尼斯型的光强弱化快门。 根据由复印机的曝光控制系统生成的信号的强度，调节快门以改变光的通过速率，并表示红色，绿色和蓝色的预期曝光时间。 如果预期的曝光时间太短，则通过逐步调节百叶窗式快门来降低撞击复制材料的复制光的强度。 相反，如果由曝光控制系统产生的信号表示三种颜色的相对长的曝光时间，则允许快门允许更多的光通过。 从较高强度到较低强度的切换发生在原始密度低于相反方向切换对象的密度。 在发生这种调整的情况下，另外的快门仅打开延迟对应于调整威尼斯百叶窗快门所需的时间的至少一半。

公开(公告)号：US5506656A

公开(公告)日：1996-04-09

申请号：US450400

申请日：1995-05-25

申请人： Wilhelm Nitsch

发明人： Wilhelm Nitsch

IPC分类号： G01J3/46 ,  B41F33/00 ,  G01N21/59 ,  G03B27/73 ,  G03F3/10

CPC分类号： G03B27/735 ,  B41F33/0027 ,  G01N21/5911

摘要： A method of and apparatus for measuring the optical density of an original, especially a three-color negative, from which photographic prints are made, to control how much printing light of each color penetrates the original when the image is projected onto a color print medium that is sensitive to these colors. The spectral sensitivity of the measuring apparatus is adjusted to that of the print medium. Measuring light is projected through the original and is resolved into at least one spectrum. The intensities of the light at the various ranges of wavelength are weighted and totaled in accordance with the spectral sensitivity of the particular print medium. Light valves with translucencies that can be adjusted to the sensitivity of the print medium to that range of wavelengths are distributed along the spectrum. The accordingly weighted intensities of the light of each color are separately sensed and measured.

摘要翻译： 一种用于测量原稿，特别是三色底片的光密度的方法和装置，其中制作照相印刷品，以便当图像投影到彩色打印介质上时，可以控制每种颜色的多少打印光穿透原稿 对这些颜色敏感。 将测量装置的光谱灵敏度调节为打印介质的光谱灵敏度。 测量光通过原始投影，并被分解成至少一个光谱。 根据特定打印介质的光谱灵敏度对各种波长范围内的光的强度进行加权和总计。 具有可以根据该波长范围的打印介质的灵敏度调节的透光性的光阀沿着光谱分布。 分别检测和测量每种颜色的相应的加权光强度。

公开(公告)号：US4466579A

公开(公告)日：1984-08-21

申请号：US418212

申请日：1982-09-15

申请人： Wilhelm Nitsch ,  Erich Nagel

发明人： Wilhelm Nitsch ,  Erich Nagel

IPC分类号： G03D13/00 ,  G03B27/58 ,  B65H17/02 ,  B65H23/06

CPC分类号： G03B27/587

摘要： A cassette for winding and unwinding rolls of photographic paper has a rotatable shaft which traverses the cassette. A spool for supporting a roll of photographic paper is mounted on and circumscribes the shaft. The shaft is supported by a pair of opposite sidewalls of the cassette. Bearing rings are mounted in each of the sidewalls and the shaft carries a pair of bearing disks which respectively mate with the bearing rings. The bearing rings and disks are designed such that they form a braking system for the shaft. An overrunning clutch is arranged between the shaft and each of the bearing disks. The overrunning clutches are oriented so that the shaft rotates freely when photographic paper is being wound onto the spool. During unwinding of photographic paper from the spool, the clutches engage and the braking system for the shaft becomes operative.

摘要翻译： 用于卷纸和放卷卷筒的相纸的盒子具有横过盒子的可旋转轴。 用于支撑一卷照相纸的卷轴安装在轴上并围绕轴。 轴由盒的一对相对的侧壁支撑。 轴承环安装在每个侧壁中，轴承有一对分别与轴承环配合的轴承盘。 轴承圈和盘被设计成使得它们形成用于轴的制动系统。 在轴和每个轴承盘之间布置超越离合器。 超越离合器被定向成使得当照相纸被卷绕到卷轴上时，轴自由旋转。 在从卷轴放卷照相纸时，离合器接合，并且用于轴的制动系统变得可操作。