公开(公告)号：US4470075A

公开(公告)日：1984-09-04

申请号：US396470

申请日：1982-07-08

申请人： Takeshi Yoshimoto ,  Masanari Tsuda

发明人： Takeshi Yoshimoto ,  Masanari Tsuda

IPC分类号： H04N1/23 ,  G03F5/00 ,  H04N1/036 ,  H04N1/40 ,  H04N1/22

CPC分类号： H04N1/4005 ,  H04N1/036 ,  H04N1/40037

摘要： In a picture scanning and recording system such as a color scanner wherein a reproduction picture is recorded by modulating a plurality of light beams each independently according to a picture signal by means of light modulator elements, a method and apparatus for recording a reproduction picture having a substantially continuous tone characterized by weighting each light beam in order of digit position of a digitized picture signal, and effecting exposure with a light beam resulting from optical addition of the light beams modulated according to such a digital picture signal.

摘要翻译： 在诸如彩色扫描器的图像扫描和记录系统中，其中通过借助于光调制器元件根据图像信号独立地调制多个光束来记录再现图像;一种用于记录具有 基本上连续的色调，其特征在于以数字化图像信号的数字位置的顺序对每个光束进行加权，并且利用由根据这样的数字图像信号调制的光束的光学添加而产生的光束进行曝光。

公开(公告)号：US4660094A

公开(公告)日：1987-04-21

申请号：US582071

申请日：1984-02-21

申请人： Takeshi Yoshimoto ,  Masanari Tsuda ,  Yoshikazu Masuda ,  Masakatsu Yokoi

发明人： Takeshi Yoshimoto ,  Masanari Tsuda ,  Yoshikazu Masuda ,  Masakatsu Yokoi

IPC分类号： G02B7/28 ,  G03F7/207 ,  G06K15/12 ,  G11B7/09 ,  H04N1/028 ,  H04N1/036 ,  H04N1/06 ,  H04N1/23 ,  H04N1/04

CPC分类号： H04N1/0678 ,  G06K15/12 ,  G06K15/1204 ,  G11B7/0908 ,  G11B7/0917 ,  H04N1/028 ,  H04N1/036 ,  H04N1/06

摘要： A method for obtaining a desired picture with high quality by scanning a rotating recording drum by a scanning light beam, which produces images on the drum through a projection lens, receiving the said images being reflected from the drum through the projection lens on an image sensor, detecting variations of diameter of the drum per each rotation from variations of intensity of light of the images, whereby position of the projection lens being movable along the normal direction of the drum is automatically adjusted against machining errors of the drum diameter and variations of the said diameter caused by changes of its surrounding or any other reasons, temperature, so that variations of imaging points of the scanning light beam can always be within a range of depth of a focus of the projection lens.

摘要翻译： 一种用于通过扫描光束通过扫描光束扫描旋转记录鼓的方法，该扫描光束通过投影透镜在滚筒上产生图像，通过图像传感器接收通过投影透镜从滚筒反射的图像 根据图像的光强度的变化来检测每个旋转滚筒的直径的变化，由此可以根据滚筒直径的加工误差和滚筒直径的变化来自动调节投影透镜沿着鼓的法线方向移动的位置 由于其周围的变化或任何其它原因，温度引起的直径，使得扫描光束的成像点的变化总是在投影透镜的焦点的深度范围内。

公开(公告)号：US4581617A

公开(公告)日：1986-04-08

申请号：US569449

申请日：1984-01-09

申请人： Takeshi Yoshimoto ,  Masanari Tsuda ,  Yoshikazu Masuda ,  Masakatsu Yokoi

发明人： Takeshi Yoshimoto ,  Masanari Tsuda ,  Yoshikazu Masuda ,  Masakatsu Yokoi

IPC分类号： H04N1/23 ,  G03F5/00 ,  H04N1/40 ,  H04N1/401 ,  H04N1/407 ,  G01D9/42

CPC分类号： H04N1/4015 ,  G03F5/00 ,  H04N1/40037

摘要： A method for automatically correcting variations in intensity of laser beams output from a projection lens, which variations occur due to variations of a spectrum pattern of optical fibers when their tip portions move, by paying attention to each of focal points of an image sensor which focal points correspond respectively to the optical fibers, comparing the sum of signal outputs from regions of the image sensor, which regions correspond respectively to the laser beams, with a signal output corresponding to a standard beam intensity required for the exposure of a photosensitive material to determine a value to be corrected, and then feeding the value back to acousto-optic light modulators so as to change the modulation efficienties of the acousto-optic light modulators.

摘要翻译： 一种用于自动校正从投影透镜输出的激光束的强度变化的方法，其通过注意图像传感器的每个焦点，由于光纤的尖端部分移动时的光谱图案的变化而发生变化，该焦点 点分别对应于光纤，将来自图像传感器的区域的信号输出的和分别与激光束对应的信号输出与对应于感光材料的曝光所需的标准光束强度进行比较，以确定 要校正的值，然后将该值送回声光调制器，以便改变声光调制器的调制效率。