Determination of extreme density values of a transported strip of
photographic originals
    21.
    发明授权
    Determination of extreme density values of a transported strip of photographic originals 失效
    确定运送的照片原件的极端密度值

    公开(公告)号:US4176964A

    公开(公告)日:1979-12-04

    申请号:US830867

    申请日:1977-09-06

    CPC classification number: G03B27/72

    Abstract: 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.

    Abstract translation: 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。

    Apparatus for determining the light transmissivity of film frames or the
like
    22.
    发明授权
    Apparatus for determining the light transmissivity of film frames or the like 失效
    用于确定胶片框架等的透光率的装置

    公开(公告)号:US4094604A

    公开(公告)日:1978-06-13

    申请号:US829786

    申请日:1977-09-01

    CPC classification number: G03B27/72

    Abstract: Apparatus for the determination of light transmissivity of film frames preparatory to the making of prints in a copying machine has a plate-like locating device for successive film frames, a light source at one side of the locating device, a group of photosensitive signal-generating elements at the other side of the locating device, and a diaphragm which is interposed between the locating device and photosensitive elements and has a hollow truncated pyramid, plate-like partitions and tubular components which confine light passing through the film frame on the locating device in such a way that a centrally located photosensitive element receives light from the entire film frame and all of the light which has passed through the central field of the frame, whereas each of the other photosensitive elements receives only that light which has passed through a single one of four L-shaped peripheral fields surrounding the central field of the frame. Light which reaches the centrally located element passes through the pyramid as well as around the pyramid. On the other hand, light which reaches the other photosensitive elements passes from the corresponding peripheral fields and thereupon through the tubular components of the diaphragm. Consequently, the signal which is transmitted by the centrally located element is indicative of transmissivity of the entire frame, and the signals transmitted by the other elements are indicative solely of transmissivity of the respective peripheral frames.

    Abstract translation: 用于确定在复印机中制作印刷品的胶卷框架的透光率的装置具有用于连续胶片框架的板状定位装置,定位装置一侧的光源,一组光敏信号产生装置 位于定位装置的另一侧的元件以及插入在定位装置和感光元件之间的隔膜,并具有中空的截棱锥体,板状分隔件和管状部件,其将通过胶片框架的光限制在定位装置上 中央定位的感光元件接收来自整个胶片框架的光和已经穿过框架的中心场的所有光的方式,而每个其它光敏元件仅接收通过单个光源的光 围绕框架中心场的四个L形外围场。 到达位于中心的元件的光通过金字塔以及金字塔周围。 另一方面,到达其它感光元件的光从相应的外围场通过隔膜的管状部件。 因此,由中央定位的元件发送的信号指示整个帧的透射率,并且由其他元件发送的信号仅指示各个外围帧的透射率。

    Color printing method and apparatus
    23.
    发明授权
    Color printing method and apparatus 失效
    彩色打印方法和装置

    公开(公告)号:US4873546A

    公开(公告)日:1989-10-10

    申请号:US264399

    申请日:1988-10-28

    Abstract: Light containing blue, green and red radiation is passed through a colored original which is to be printed on color copy material. The transmitted light is spread out into a color spectrum which extends across a first wavelength range generally corresponding to the blue portion of the spectrum, a second wavelength range generally corresponding to the green portion of the spectrum and a third wavelength range generally corresponding to the red portion of the spectrum. The intensity of the transmitted light is measured throughout the spectrum and average of the resulting raw intensities are taken oer each of a series of wavelength intervals which are much shorter than the first, second and third ranges. The copy material has a gamma value for each wavelength interval and such gamma value represents the spectral sensitivity of the copy material in the corresponding interval. The average intensity for each wavelength interval is multiplied by the respective gamma value to yield a corrected intensity. The corrected intensities for each wavelength range are summed to generate first, second and third sums corresponding to the first, second and third ranges and respectively representing the blue, green and red densities of the original. The first, second and third sums are used to calculate the respective amounts of blue, green and red light required to print the original with a neutral gray density.

    Abstract translation: 含有蓝色,绿色和红色辐射的光通过将被打印在彩色复印材料上的彩色原稿。 透射的光被扩散到彩色光谱中,该色谱线延伸跨越通常对应于光谱的蓝色部分的第一波长范围,通常对应于光谱的绿色部分的第二波长范围和通常对应于红色的第三波长范围 部分光谱。 在整个光谱中测量透射光的强度,并且所得到的原始强度的平均值采用比第一,第二和第三范围短得多的一系列波长间隔中的每一个。 复制材料对于每个波长间隔具有伽马值,并且这样的伽马值表示复制材料在相应间隔中的光谱灵敏度。 每个波长间隔的平均强度乘以相应的伽马值以产生校正强度。 将每个波长范围的校正强度相加以产生对应于第一,第二和第三范围的第一,第二和第三和,并分别表示原始的蓝色,绿色和红色密度。 第一,第二和第三和用于计算以中性灰度密度打印原稿所需的蓝色,绿色和红色光的各自的量。

    Copying method and arrangement for colored originals
    24.
    发明授权
    Copying method and arrangement for colored originals 失效
    彩色原件的复印方法和布置

    公开(公告)号:US4589766A

    公开(公告)日:1986-05-20

    申请号:US778156

    申请日:1985-09-16

    CPC classification number: G03B27/735

    Abstract: A strip of exposed and developed color film is transported through a transparency measuring system. The transparency of each frame of the film strip in the three primary colors is measured at a multiplicity of regions. The transparency values are converted to density values which are processed to generate a set of data characteristic of the film strip and indicative of the color compositions of the scanned regions. The characteristic set of data and the density values for the individual regions are used to determine whether or not a respective region contains a color dominant. For each frame, the amounts of copying light in the primary colors are established from the density values of those regions which are free of color dominants and have a neutral gray color composition. The amount of copying light in each of the three primary colors is calculated so that the regions of the original having a neutral gray color composition are copied neutral gray. In order to ensure that the copying material registers the copying light in the same manner as the measuring system registers the transparency measuring light, the measuring light is filtered so as to match the spectral sensitivity of the measuring system in each primary color to the spectral sensitivity of the copying material in the same color.

    Abstract translation: 曝光和显影的彩色胶片条通过透明度测量系统传输。 在多个区域测量三原色的胶片条的每一帧的透明度。 透明度值被转换成密度值,其被处理以产生胶片条的特征数据集并指示扫描区域的颜色组成。 用于各个区域的特征数据集和密度值用于确定相应区域是否包含颜色显着性。 对于每个帧,原色的复印光的量由不含色彩的区域的密度值建立并具有中性灰色组成。 计算出三原色中的每一种的复印光量,使得具有中性灰色组合的原稿的区域被复制为中性灰色。 为了确保复印材料以与测量系统登记透明度测量光相同的方式登记复印光,测量光被过滤以将每个原色中的测量系统的光谱灵敏度与光谱灵敏度相匹配 的复印材料是相同的颜色。

    Method of and apparatus for copying photographic originals
    25.
    发明授权
    Method of and apparatus for copying photographic originals 失效
    复印照相原稿的方法和装置

    公开(公告)号:US4565442A

    公开(公告)日:1986-01-21

    申请号:US666366

    申请日:1984-10-30

    CPC classification number: G03B27/735 G03B27/462

    Abstract: A series of exposed and developed film strips having various lengths are spliced end-to-end for copying. The resulting band passes through a density measuring station in which the densities of the negatives are measured in the three primary colors and next through a magazine of variable capacity in which a portion of the band accumulates before entering a negative copying station including an exposure control device which regulates the exposures of the negatives on the measured basis of the density values. To insure that values derived from a selected strip are transferred to the exposure control unit when the strip enters the copying station, the splice immediately downstream of the selected strip is arrested in the density measuring station. The band continues to be drawn through the copying station so that the portion which has accumulated in the magazine is fully withdrawn. The portion of the band between the arrested splice and a splice sensor in the copying station has a known length. The arrested junction is now released and a length measuring device begins to measure the length of the portion travelling through the copying station. If the sensor detects a splice when the measured length equals the known length, this splice is the previously arrested splice.

    Abstract translation: 一系列具有不同长度的曝光和显影的胶片条被端对端拼接以进行复印。 所得到的带通过密度测量站,其中底片的密度以三原色测量,接下来通过可变容量的盒,其中一部分带进入包括曝光控制装置的负复印台之前累积 其根据密度值的测量基准来调节底片的曝光。 为了确保当条带进入复印站时,从所选择的条带获得的值被传送到曝光控制单元,则在密度测量站中紧接所选条带下游的接合。 乐队继续通过复印台画画,使得积累在杂志中的部分完全撤回。 在复制台中,被锁定的拼接和拼接传感器之间的带的部分具有已知的长度。 被拘捕的交汇处现在已经被释放,长度测量装置开始测量穿过复印站的部分的长度。 如果传感器在测量长度等于已知长度时检测到接头,则该接头是先前已被锁定的接头。

    Method of and arrangement for copying a colored original
    26.
    发明授权
    Method of and arrangement for copying a colored original 失效
    复制彩色原稿的方法和布置

    公开(公告)号:US4492458A

    公开(公告)日:1985-01-08

    申请号:US421500

    申请日:1982-09-22

    CPC classification number: G03B27/735

    Abstract: A method of copying a colored original involves measuring the transparency of localized regions of the original in each of the three primary colors. Three localized transparency ratios for each region are formed from the transparency values for the different colors. Three corresponding average transparency ratios for the original as a whole are computed from the localized transparency ratios. Each average transparency ratio is compared with a statistical average of similar ratios obtained from a large number of average originals. If an average transparency ratio of the original to be copied deviates from the corresponding statistical average by more than a predetermined amount, the number of each of the localized transparency ratios lying inside and outside of a predetermined range about the corresponding average transparency ratio of the original is counted. When the number outside of a predetermined range exceeds the number inside, a color dominant is assumed to be present in the original. Otherwise, a color tinge is assumed to be present. The original is copied using a correction factor which depends upon whether a color dominant or a color tinge is present. An alternative method summing the differences between the localized transparency ratios and the respective average transparency ratios of the original is also presented.

    Abstract translation: 复制彩色原稿的方法包括测量原始图像在三种原色中的每一种中的局部区域的透明度。 从不同颜色的透明度值形成每个区域的三个局部透明度比。 根据局部透明度比率计算原始整体的三个相应的平均透明度比。 将每个平均透明度比率与从大量平均原件获得的类似比率的统计平均值进行比较。 如果要复制的原件的平均透明度比偏离相应的统计平均值超过预定量,则每个局部透明度比例在相对于原始图像的对应的平均透明度比的预定范围内和之外的数量 算了 当超过预定范围的数量超过内部数量时,假定原色中存在着色显性。 否则,假定存在颜色色调。 使用校正因子来复制原件,该校正因子取决于是否存在着色或颜色色调。 还提出了一种将局部透明度比率和原始平均透明度比的差异相加的替代方法。

    Method and apparatus for automatically recognizing photographic
originals unsuitable for copying
    27.
    发明授权
    Method and apparatus for automatically recognizing photographic originals unsuitable for copying 失效
    自动识别不适合复印的照相原稿的方法和装置

    公开(公告)号:US4239384A

    公开(公告)日:1980-12-16

    申请号:US966314

    申请日:1978-11-29

    Applicant: Helmut Treiber

    Inventor: Helmut Treiber

    CPC classification number: G03B27/72

    Abstract: A negative whose printability is to be automatically ascertained is subdivided into a central zone, a foreground zone, and a background zone. Whole-zone density signals are produced for the foreground and background zones, and the central zone is scanned to generate a maximum-density signal indicating the density of the maximum-density point within the central zone. The negative is rejected for being underexposed when both of two conditions are met: first, the larger of the foreground and background whole-zone density signals fails to exceed a first limit value; and second, the difference between the central-zone maximum-density signal, on the one hand, and the smaller of the foregound and background whole-zone density signals, on the other hand, fails to exceed a second limit value. The negative is rejected as overexposed when the average of the foreground and background whole-zone density signals fails to exceed a third limit value, irrespective of the density of the central zone. The negative is rejected as containing a meaningless motif, e.g., an adhesive sticker applied to the negative, when the central-zone maximum-density signal exceeds a fourth limit value, the density corresponding to the fourth limit value being higher than the density corresponding to the third limit value.

    Abstract translation: 可自动确定其印刷性的负面细分为中央区域,前景区域和背景区域。 为前景和背景区域产生全区密度信号,并扫描中央区域以产生指示中心区域内最大密度点密度的最大密度信号。 当满足两个条件时,负值被拒绝为曝光不足:首先,前景和背景全区密度信号中较大者不能超过第一极限值; 另一方面,一方面,中心区最大密度信号与前缘和背景全区密度信号之间的差异不能超过第二极限值。 当前景和背景全区域密度信号的平均值不能超过第三极限值时,与中心区域的密度无关,则负值被拒绝为过度曝光。 当中心区最大密度信号超过第四极限值时,负值被拒绝为包含无意义的图案,例如施加到负片的粘合剂贴纸,对应于第四极限值的密度高于对应于 第三限值。

    Method and apparatus for evaluating developed photographic films prior
to copying
    28.
    发明授权
    Method and apparatus for evaluating developed photographic films prior to copying 失效
    在复印前评估显影摄影胶片的方法和装置

    公开(公告)号:US4152068A

    公开(公告)日:1979-05-01

    申请号:US740033

    申请日:1976-11-08

    CPC classification number: G03B27/73

    Abstract: Successive frames of a web of photographic color film are subjected to objective examination during transport through an automatic evaluating circuit which may constitute a discrete prereader or a prereader which is integrated into a copying machine upstream of the copying station. The prereader furnishes signals which represent color and/or density correction data for reproduction of those film frames which can be properly copied only with a setting of exposure controls which deviates from the average setting for copying of the majority of film frames. The objective examination of all film frames is followed by a subjective examination which is performed by an attendant who inspects at least some of those film frames whose examination by the prereader resulted in the generation of correction signals. The attendant inspects the film frames at the copying station or at a second station which is located immediately downstream of a discrete prereader, and the attendant simultaneously observes the corresponding correction signals which are furnished by the evaluating circuit and are displayed close to the copying station or in register with film frames at the second station. The attendant can approve, modify or cancel the correction signals, and can also initiate the generation of additional signals, e.g., to identify those film frames which are unfit for copying.

    Abstract translation: 摄影彩色胶卷的连续框架在运输过程中通过自动评估电路进行客观检查,该自动评估电路可构成复合机上游的复合机组合在一起的离散预读器或预读器。 预读器提供表示彩色和/或浓度校正数据的信号,用于再现这些胶片帧,这些胶片帧只能在偏离大多数胶片帧的复印的平均设置的曝光控制设置下才能正确复制。 对所有电影框架的客观检查之后进行主观检查,该检查由检查至少一些那些胶片帧的服务员进行,其中由预读者进行检查导致产生校正信号。 服务员检查位于离散预读器紧邻下游的复印站或第二站处的胶片帧,并且服务员同时观察由评估电路提供的相应校正信号,并显示在复印站附近或 在第二站登记电影帧。 服务员可以批准,修改或取消校正信号,并且还可以启动附加信号的产生,例如,以识别那些不适于复制的胶片帧。

    Method and apparatus for evaluating developed photographic films
preparatory to reproduction
    29.
    发明授权
    Method and apparatus for evaluating developed photographic films preparatory to reproduction 失效
    用于评估准备繁殖的开发摄影胶片的方法和装置

    公开(公告)号:US4099862A

    公开(公告)日:1978-07-11

    申请号:US739547

    申请日:1976-11-08

    CPC classification number: G03B27/73

    Abstract: An automatic prereader for exposed and developed frames of a web of spliced-together photographic color films is preceded by a first station and followed by a second station at the first of which groups of successive frames are subjected to a first subjective examination by an attendant and at the second of which some of the frames are subjected to renewed subjective examination by the same attendant. The attendant actuates one or more pushbuttons upon examination of frames at the first station to produce signals which denote improperly oriented frames, frames which were exposed in artificial light and/or frames which are unfit for copying. Such signals are used to modify signals which are furnished by the automatic prereader. The modified and unmodified signals which are furnished by the prereader are examined for intensity, and those signals whose intensity is outside of a preselected range are displayed at the second station so that the attendant can observe such signals simultaneously with observation of the respective film frames and is in a position to initiate the generation of additional signals which are used to modify or erase the corresponding signals from the prereader before the signals are transmitted to the exposure controls of a copying machine.

    Abstract translation: 用于拼接在一起的照相彩色胶片网的曝光和显影框架的自动预读器之前是第一站,随后是第二站,其中第一站连续帧组被服务员进行第一次主观检查,并且 其中第二个框架由相同的服务员进行更新的主观审查。 服务员在检查第一站的帧时致动一个或多个按钮,以产生表示不正确取向的帧的信号,在人造光和/或不适合复制的帧中暴露的帧。 这些信号用于修改由自动预读器提供的信号。 检查由预读器提供的修改和未修改的信号的强度,并且强度在预选范围之外的那些信号被显示在第二站,使得服务员可以观察这些信号同时观察各个胶卷帧, 在信号被传送到复印机的曝光控制之前,能够启动用于修改或擦除来自预读器的相应信号的附加信号的产生。

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