| 摘要 |
PURPOSE:To suppress the fluctuation in the luminance distribution on an original surface by welding a light shieldable glassy material on the surface on a backup member side of guide glass thereby forming an aperture mask. CONSTITUTION:An original 4, sandwiched by the paired 1st feed rolls 5 rotating respectively in arrow A, B directions, is fed in an arrow C direction and moves between guide glass 2 and a backup member 3. The illuminating light from light sources 6, 6a passes the glass 2 and illuminates the surface of the original 4. The reflected light L thereof passes the spacke between the two light sources 6 and 6a, reflects on the 1st mirror 7, an in-mirror lens 8, the 3rd mirror 9, and the 4th mirror 10 and exposes the surface of a photosensitive body 11 rotating in an arrow D direction, thereby 12. The original paste the space between the glass 2 and the member 3 is delivered by a pair of conveying roll 13 rotating in arrow E, F directions. |
