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    • 3. 发明授权
    • Method of exposing photosensitive material
    • US4636066A
    • 1987-01-13
    • US816053
    • 1986-01-03
    • Eiji KanadaShigeyoshi SuzukiKazunaka EndoKyonosuke Yamamoto
    • Eiji KanadaShigeyoshi SuzukiKazunaka EndoKyonosuke Yamamoto
    • G03B27/32
    • G03B27/323
    • There is disclosed a method for exposing in two steps a photosensitive material to an original of a continuous tone image mingled with a line image through a lens of a process camera of the daylight type, which comprises feeding said photosensitive material to an exposure unit disposed in nearly vertical position in said camera and provided with a suction mechanism, and setting the sensitive material in place; (A) in case of the first step exposure being made to an original of a continuous tone image, (a) moving a contact screen from a position in front of the photosensitive material to establish a close contact with the photosensitive material and exposing the sensitive material imagewise to the continuous tone image, subsequently (b-1) moving the contact screen by the internal shift to the position in front of the sensitive material so that it is out of the exposure region while the sensitive material being remained as such, or (b-2) moving the contact screen internally to a position in front of the sensitive material and then shielding the latter against light in such a manner that the sensitive material can be released of the shield at the time of the second step exposure, the contact screen being absent at least in the exposure region at the time of second step exposure and subsequently (c) exposing the sensitive material to the line image (second step exposure), or (B) in case of the first step exposure being made to the line image, (a') exposing the sensitive material to the line image in the first step, then (b'-1) moving the contact screen, which is in front of the sensitive material and kept outside the exposure region, to establish close contact with the sensitive material while the sensitive material being remained as such, or (b'-2) shielding the sensitive material against light in such a manner that the sensitive material can be released of the shield at the time of bringing the contact screen into close contact with the sensitive material and moving the contact screen from a position in front of the sensitive material to establish a close contact with the photosensitive, and subsequently (c') exposing the sensitive material to the continuous tone image (second step exposure).
    • 4. 发明授权
    • Method for direct plate making from multicolor original
    • 从多色原版直接制版的方法
    • US4610949A
    • 1986-09-09
    • US697569
    • 1985-02-01
    • Eiji KanadaKazunaka EndoKyonosuke YamamotoShigeyoshi Suzuki
    • Eiji KanadaKazunaka EndoKyonosuke YamamotoShigeyoshi Suzuki
    • G03F7/00G03F5/14G03C5/00
    • G03F5/14
    • Disclosed is a method for the direct making of printing plates for multicolor lithography capable of faithfully reproducing repeatedly continuous gradation multicolor original, which comprises using color separation filters for at least blue, green, and, red and repeating a sequence of the steps of shielding an exposure section against light by a light shielding means; feeding to said exposure section a magazine containing a sensitive material convertible into lithographic printing plate, which material bears a panchromatically sensitized photographic layer; bringing said sensitive material into close contact with a contact screen; exposing said sensitive material through a lens and a color separation filter to the reflected light from a continuous gradation multicolor original; and sending the exposed sensitive material to a processing bath section.
    • 公开了一种用于直接制造多色光刻印版的方法,其能够忠实地再现连续渐变多色原稿,其包括使用至少蓝色,绿色和红色的分色滤光片,并重复屏蔽 通过遮光装置对光进行曝光部分; 向所述曝光部分馈送包含可转换成平版印刷版的敏感材料的盒子,该材料具有全色增感照相层; 使所述敏感材料与接触屏幕紧密接触; 将所述敏感材料通过透镜和分色滤光片曝光于来自连续渐变多色原稿的反射光; 并将暴露的敏感材料发送到处理槽部分。