| 摘要 |
PURPOSE:To improve the workability in the printing and exposure of patterns, and the reexposure of unexposed parts by so constitution a titled composer that a light shielding film is moved on the top surface of the glass on the side opposite from a light source is moved back and forth whereby plural sheets of patterns are exposed and printed successively. CONSTITUTION:A light shielding film 13 is provided freely movably back and forth on the top surface of the light transmittable glass 12 provided on a composer holder 11, on the side opposite from a light source. The film 13 is supported and wound at the inside end to revolving shafts 14 provided on four sides near the outside circumference of the composer holder 11. A pulling body 15 is provided at the outside end of the film 13, and both ends of the body 15 are curved upward over the entire length to make the back and forth movement easy. A driving ring 16 is supported freely rotatably between the shafts 14 and a shaft 17, and the body 15 is supported between the two rings 16 and 16' so that the film 13 is moved back and forth by the back and forth movement of the body 15. After an original 21 is placed and affixed onto the glass plate 12, the film 13 is projected whereby the original is printed to a side plate 22. |
