公开(公告)号：US5162841A

公开(公告)日：1992-11-10

申请号：US593922

申请日：1990-10-05

申请人： Takaaki Terashita

发明人： Takaaki Terashita

IPC分类号： G03B27/73

CPC分类号： G03B27/735

摘要： An exposure controlling apparatus includes a sensor for effecting photometry by separating light from an original picture into a plurality of separated components; a storage device for storing a value concerning the spectral sensitivity of the sensor and a value concerning the spectral sensitivity of a copying sensitive material to be copied; an estimating device for estimating a spectral characteristic of the original picture on the basis of a photometric value of the sensor and the value concerning the spectral sensitivity of the sensor stored in the storage device; and a controller for determining a synthetic value which is equivalent to a value measured by a sensor having a spectral sensitivity distribution identical with or similar to a spectral sensitivity distribution of the copying sensitive material on the basis of the spectral characteristics of the original picture estimated and the value concerning the spectral sensitivity of the copying sensitive material, and for controlling exposure amount on the basis of the synthetic value. Accordingly, it is possible to control exposure amount by estimating the spectral characteristics of the original picture even from photometric values obtained by effecting photometry by separating the light into components having a wide half-width.

公开(公告)号：US5081485A

公开(公告)日：1992-01-14

申请号：US550778

申请日：1990-07-10

申请人： Takaaki Terashita

发明人： Takaaki Terashita

IPC分类号： G03B27/73

CPC分类号： G03B27/735

摘要： A method for determining exposure amount by making use of the fact that values in which the photometric data on a lowest-density portion of a color film is subtracted from tricolor photometric data are approximately the same irrespective of the type of film. The lowest-density data is subtracted from the tricolor photometric data to determine tricolor corrected data. This tricolor corrected data is normalized, and the tricolor normalized data is compared with a reference value so as to be classified into tricolor normalized data. The tricolor photometric data is selected in correspondence with this classification, and the exposure amount is determined on the basis of an average value of the tricolor photometric data selected. As a result, it is possible to print various types of film under the conditions of print exposure of a reference film type without requiring information indicating the film type.

摘要翻译： 通过利用从三色测光数据中减去彩色薄膜的最低密度部分上的测光数据的值与膜的类型大致相同的事实来确定曝光量的方法。 从三色测光数据中减去最低密度数据，以确定三色校正数据。 对该三色校正数据进行归一化，将三色标准化数据与参考值进行比较，分类为三色标准化数据。 根据该分类选择三色测光数据，并且根据所选择的三色测光数据的平均值来确定曝光量。 结果，可以在不需要指示胶片类型的信息的情况下在参考胶片类型的打印曝光的条件下打印各种类型的胶片。

公开(公告)号：US5073008A

公开(公告)日：1991-12-17

申请号：US668331

申请日：1991-03-14

申请人： Takaaki Terashita ,  Setsuo Okada

发明人： Takaaki Terashita ,  Setsuo Okada

IPC分类号： G02B1/11 ,  G02B5/28

CPC分类号： G02B5/285 ,  G02B1/115 ,  G02B1/116 ,  G02B5/201

摘要： An interference filter includes a multi-coated interference filter layer of dielectric substances deposited on a transparent base plate and extinction members applied to side surfaces of the transparent base plate. A multi-color interference filter has at least two such interference filters having different spectral characteristics closely connected to each other through the extinction members and cemented to a transparent base plate which is formed with a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which the interference filter is cemented.

摘要翻译： 干涉滤光器包括沉积在透明基板上的介电物质的多涂层干涉滤光层和施加到透明基板侧表面的消光部件。 多色干涉滤光器具有至少两个这样的干涉滤光片，其具有通过消光部件彼此紧密连接的不同光谱特性，并且胶合到透明基板，透明基板形成有多个涂覆的抗反射层，该多层抗反射层沉积在相对的一个表面 到干涉滤光片粘合到的表面上。

公开(公告)号：US5017014A

公开(公告)日：1991-05-21

申请号：US398681

申请日：1989-08-25

申请人： Takaaki Terashita

发明人： Takaaki Terashita

IPC分类号： G03B27/73

CPC分类号： G03B27/735

摘要： Codes (the so-called DX codes) recorded on a plurality of films are read to classify the films into a plurality of film types. Light is measured with respect to images on the films to obtain image densities, and, on the basis of the resultant photometric values, the image densities are obtained and are then stored in correspondence with the film types. A reference value is calculated on the basis of the image density that corresponds to the film type to which one of the films to be subjected to printing belongs. A color region is specified on the basis of the calculated reference value, and, on the basis of photometric values that belong to the specified color region, image density values for the three primary colors are calculated. The exposure for use in the printing of the film to be subjected to printing is determined from a reference printing exposure condition already stored and the calculated image density values for the three primary colors. The stored image densities are compared to one another to determine whether they are identical or similar, and certain film types corresponding image densities which have been determined to be identical or similar are integrated as the same film type.

摘要翻译： 读取记录在多个胶片上的代码（所谓的DX代码），以将胶片分类成多种胶片类型。 相对于膜上的图像测量光以获得图像密度，并且基于得到的光度值，获得图像密度，然后根据胶片类型存储图像密度。 基于对应于要进行打印的一个胶片所属的胶片类型的图像浓度来计算参考值。 基于所计算的参考值指定颜色区域，并且基于属于指定颜色区域的光度值，计算三原色的图像浓度值。 根据已经存储的基准打印曝光条件和用于三原色的计算的图像浓度值来确定用于打印要进行打印的胶片的曝光。 将存储的图像浓度彼此进行比较以确定它们是相同的还是相似的，并且已经被确定为相同或类似的某些膜类型对应的图像浓度被集成为相同的膜类型。

公开(公告)号：US4905039A

公开(公告)日：1990-02-27

申请号：US296723

申请日：1989-01-13

申请人： Takaaki Terashita

发明人： Takaaki Terashita

IPC分类号： G03B27/54 ,  G03B27/73

CPC分类号： G03B27/73 ,  G03B27/545

摘要： A color image exposure apparatus with improved color reproducibility is disclosed. The improved color reproducibility has been achieved by using for exposure only those rays having a substantially uniform angle distribution relative to an optical axis. In order to perform exposure by the above rays, rays substantially parallel to the optical axis are caused to enter a filter coated with a dielectric multilayer film or, as an alternative, rays substantially parallel to the optical axis only are chosen from rays emitted through the filter. Since rays near an enlarging master lens are substantially parallel to the optical axis, an optical member coated with a dielectric multilayer film may be arranged in the vicinity of the master lens.

摘要翻译： 公开了一种具有改进的颜色再现性的彩色图像曝光装置。 通过仅使用相对于光轴具有基本均匀的角度分布的那些射线来实现改进的颜色再现性。 为了通过上述射线进行曝光，使得基本上平行于光轴的射线进入涂覆有电介质多层膜的过滤器，或者作为替代，基本上平行于光轴的射线仅从通过 过滤。 由于放大的主透镜附近的光线基本上平行于光轴，所以可以在主透镜附近设置涂覆有电介质多层膜的光学部件。

公开(公告)号：US4769695A

公开(公告)日：1988-09-06

申请号：US855412

申请日：1986-04-24

申请人： Takaaki Terashita

发明人： Takaaki Terashita

IPC分类号： G03B27/80 ,  G03B27/73 ,  H04N1/46

CPC分类号： G03B27/735

摘要： Three color densities of a color original are measured for a number of picture elements into which the color original is divided. A part of the color original that includes at least one picture element is selected, with whose color based on the measured densities thereof the color of each picture element based on the measured densities is compared to detect picture elements having colors identical or similar to the color of the selected part of the color original. The picture elements of the identical or similar colors can define an extent of image which determines a principal subject image and the remainder of which is background. For the individual image, at least one characteristic value peculiar to the image is then calculated by utilizing the measured color densities of picture elements, and on the basis of the characteristics values the scene of the original is classified to select one of a plurality of previously provided exposure calculating formulas in order to determine the proper exposure for obtaining color prints of proper color balance and density.

摘要翻译： 对于彩色原稿分割成的多个图像元素，测量彩色原稿的三个颜色浓度。 选择包括至少一个图像元素的颜色原稿的一部分，其基于测量的浓度的颜色，基于测量的浓度对每个图像元素的颜色进行比较，以检测具有与颜色相同或相似的颜色的图像元素 的所选部分的颜色原件。 相同或相似颜色的图像元素可以定义确定主要被摄体图像并且其余部分是背景的图像的程度。 对于个体图像，然后通过利用所测量的图像元素的颜色浓度来计算图像特有的至少一个特征值，并且基于特征值，原始场景被分类以选择之前的多个 提供曝光计算公式，以确定适当的曝光以获得适当的色彩平衡和密度的彩色照片。

公开(公告)号：US4707118A

公开(公告)日：1987-11-17

申请号：US937470

申请日：1986-12-02

申请人： Takaaki Terashita

发明人： Takaaki Terashita

IPC分类号： G03B27/73 ,  G03B27/78

CPC分类号： G03B27/735

摘要： In conventional color photographic printers, it is emperically known that the LATD balance of RGB is substantially constant. If the exposures of three primary color components are controlled to be constant in photographic printing, standard color film negatives may be printed with excellent color balance. However, the above LATD control method is not always effective for the film negatives where a specific color is dominant, and those films are often printed with poorly balance color. The present method performs exposure control of RGB with color compensation filters controlling the color with the color compensation filter amount dependent upon factors such as the filter position, filter density, transmission factor, amount of light, etc. This method can therefore control the exposure control values at a high precision without disturbing color balance for all types of films. This method can also prevent fluctuations in density which might otherwise be entailed by the changes in color correction level so as to thereby precisely deal with changes in the sensitivity of the materials of the development process.

摘要翻译： 在传统的彩色照相打印机中，众所周知，RGB的LATD平衡基本上是恒定的。 如果在照相印刷中将三原色组分的曝光控制为恒定，则可以印刷具有优异色彩平衡的标准彩色胶片底片。 然而，上述LATD控制方法对于特定颜色为主导的胶片底片并不总是有效的，并且这些胶片通常以不均匀的颜色印刷。 本方法根据滤波器位置，滤波器密度，透射系数，光量等因素，利用色彩补偿滤波器量控制颜色的彩色补偿滤波器进行RGB的曝光控制。因此，该方法可以控制曝光控制 高精度的数值，不影响所有类型的胶片的色彩平衡。 这种方法还可以防止颜色校正水平的变化可能引起的密度波动，从而精确地处理显影过程的材料的灵敏度的变化。

公开(公告)号：US4364650A

公开(公告)日：1982-12-21

申请号：US193888

申请日：1980-10-03

申请人： Takaaki Terashita ,  Kazuo Shiota ,  Kenji Nakauchi

发明人： Takaaki Terashita ,  Kazuo Shiota ,  Kenji Nakauchi

IPC分类号： G01J1/44 ,  G03B7/091 ,  G03B7/099 ,  G03B7/28 ,  G03B7/08

CPC分类号： G03B7/091

摘要： A number of light measuring elements are arranged at various portions of an image of an object focused by an objective. The light measuring elements are grouped for different zones to measure the average brightness of the image within the respective zones. The average brightness of the image is weighed and added together to calculate the brightness of the object based on which the exposure is controlled.

摘要翻译： 多个光测量元件被布置在由物镜聚焦的物体的图像的各个部分上。 光测量元件被分组用于不同的区域以测量各个区域内的图像的平均亮度。 将图像的平均亮度称重并相加在一起以计算基于该曝光被控制的对象的亮度。

公开(公告)号：US4100424A

公开(公告)日：1978-07-11

申请号：US715589

申请日：1976-08-18

申请人： Taizo Akimoto ,  Takaaki Terashita ,  Koji Takahashi ,  Shigeru Watanabe ,  Eiichi Asai

发明人： Taizo Akimoto ,  Takaaki Terashita ,  Koji Takahashi ,  Shigeru Watanabe ,  Eiichi Asai

IPC分类号： G01J1/42 ,  G01J1/44 ,  G03B7/08 ,  G03B27/72 ,  G03B27/80 ,  G01N21/30

CPC分类号： G03B27/72

摘要： A method is disclosed for controlling the exposure during photographic printing. The transmission density of a negative or original is measured to provide an exposure control signal. In an illustrative embodiment of this invention, the original is divided into a central portion, a peripheral portion, an upper portion, a lower portion, a right-hand portion and a left-hand portion. Means are provided for quantizing a difference in average density between the portions in the negative, which is classified into a plurality of categories in accordance with a logic of combining characteristic values of the negative. The method affords an enhancement of accuracy in exposure control and an enhancement of probability of obtaining prints of good quality.

摘要翻译： 公开了一种用于控制照相印刷期间的曝光的方法。 测量负片或原件的透射密度以提供曝光控制信号。 在本发明的说明性实施例中，原件分为中心部分，周边部分，上部分，下部分，右手部分和左手部分。 提供了用于量化负的部分之间的平均密度差的装置，其根据组合负的特征值的逻辑被分类为多个类别。 该方法提高了曝光控制的准确性，并提高了获得良好质量的印刷品的概率。