公开(公告)号：US4916528A

公开(公告)日：1990-04-10

申请号：US291202

申请日：1988-12-28

申请人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Hiroshi Ichimura ,  Ichiro Negishi ,  Masaru Osada ,  Wataru Katase ,  Kaoru Kitami

发明人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Hiroshi Ichimura ,  Ichiro Negishi ,  Masaru Osada ,  Wataru Katase ,  Kaoru Kitami

IPC分类号： H04N9/04

CPC分类号： H04N9/04

摘要： A color separation stripe filter in a color image pickup apparatus in which a color image is focused on a photo-electric conversion target through the filter to be converted to an electrostatic image so as to generate a color multiplexed signal. The filter comprises a plurality of recurrent groups of three different color stripes successively arranged at periodic intervals. The first color stripe has a characteristic showing a peak transmission factor in a red color region, the second color stripe has a characteristic showing a peak transmission factor in a green color region which is substantially equal to the peak transmission factor of the first color stripe, and the third color stripe has a characteristic showing a negative peak transmission factor at a wavelength between 500 nm and 530 nm so as to produce first and second peak transmission factors in a blue region and said green region. The first peak transmission factor is substantially equal to each of the peak transmission factors of the first and second color stripes and the second peak transmission factor existing in the green color region to be 50% to 80% of each of the peak transmission factors of the first and second color stripes, a curve of the characteristic of the third color stripe in the green region being substantially similar in configuration to that of the second color stripe.

公开(公告)号：US5140443A

公开(公告)日：1992-08-18

申请号：US557612

申请日：1990-07-24

申请人： Makoto Iwahara ,  Tadayoshi Miyoshi ,  Shigeaki Tada ,  Takashi Kuriyama ,  Itsuo Takanashi ,  Ichiro Shishido ,  Kaoru Kitami

发明人： Makoto Iwahara ,  Tadayoshi Miyoshi ,  Shigeaki Tada ,  Takashi Kuriyama ,  Itsuo Takanashi ,  Ichiro Shishido ,  Kaoru Kitami

IPC分类号： H04N1/028 ,  H04N1/10 ,  H04N1/193

CPC分类号： H04N1/0282 ,  H04N1/02815 ,  H04N1/02835 ,  H04N1/0284 ,  H04N1/0287 ,  H04N1/0467 ,  H04N1/1008 ,  H04N1/1013 ,  H04N1/193

摘要： An apparatus for scanning an image, comprising a main unit body casing, a first original platen having a transparent surface on which a light-reflective original is placed, a second original platen movable in a horizontal direction inside the main unit body casing upon which platen a light-transmissive original is placed, a light source that irradiates light to the first and second original platens, an image sensor, and an optical apparatus disposed inside the body casing, and which respectively passes reflected light from the original placed on the first original platen and light transmitted through the original placed on the second original platen to the image sensor.

摘要翻译： 一种用于扫描图像的装置，包括主单元主体壳体，具有透明表面的第一原稿台板，其上放置有光反射原稿;第二原稿台板，其在水平方向上可移动到主单元主体外壳内，压板 放置透光原稿，将光照射到第一和第二原稿台，图像传感器和设置在主体外壳内部的光学设备，并且分别通过放置在第一原稿上的原稿的反射光 压板和光通过放置在第二原稿台上的原稿传输到图像传感器。

公开(公告)号：US5264927A

公开(公告)日：1993-11-23

申请号：US658141

申请日：1991-02-20

申请人： Tadayoshi Miyoshi ,  Takashi Kuriyama ,  Ichiro Shishido ,  Masaru Osada ,  Kaoru Kitami

发明人： Tadayoshi Miyoshi ,  Takashi Kuriyama ,  Ichiro Shishido ,  Masaru Osada ,  Kaoru Kitami

IPC分类号： H04N1/60 ,  H04N1/46

CPC分类号： H04N1/6016

摘要： A first set of different color signals represented in a colorimetric system is converted into a second set of different color signals represented in another colorimetric system. Predetermined main parts of the second set of the color signals are determined in response to predetermined first portions of the first set of the color signals. Calculation coefficients are determined in response to the first portions of the first set of the color signals. Predetermined subordinate parts of the second set of the color signals are calculated from predetermined second portions of the first set of the color signals and the calculation coefficients according to an interpolation. The determined main parts of the second set of the color signals and the calculated subordinate parts of the second set of the color signals are combined into a whole of the second set of the color signals. The calculation coefficients are designed so that, if the color signals in the first set vary by equal values, achromatic color data which results from the calculation lies on an achromatic color axis in a color space defined with respect to the readout data of the main parts of the second set of the color signals, and that the sum of squared errors of color conversion is minimized.

摘要翻译： 在比色系统中表示的第一组不同颜色信号被转换成另一个比色系统中表示的不同颜色信号的第二组。 响应于第一组颜色信号的预定的第一部分来确定第二组颜色信号的预定主要部分。 响应于第一组颜色信号的第一部分来确定计算系数。 根据插值，从第一组彩色信号的预定第二部分和计算系数计算第二组彩色信号的预定次级部分。 第二组颜色信号的确定的主要部分和第二组彩色信号的计算的下属部分组合成第二组彩色信号的整体。 计算系数被设计成使得如果第一组中的颜色信号变化相等的值，则由计算产生的无彩色数据位于相对于主要部分的读出数据定义的颜色空间中的无彩色轴上 的第二组颜色信号，并且颜色转换的平方误差之和被最小化。