| 摘要 |
PURPOSE:To decrease the shading and thus to increase the photo sensitivity by giving scanning via the light beam scanner to the picture recording medium featuring the transmissible pattern and condensing the transmission beams through the condenser lens with detection of the light volume via the photo detector. CONSTITUTION:Original 2 on orginal stand 1 is illuminated by lamp 13, and the image formation exposure is given on picture recording medium 12 through image formation lens 11. Thus the picture image of original 2 is memorized onto medium 12 in the form of the transmissible pattern. After this, medium 12 featuring the transmissible pattern is scanned via light beam scanner 3, and the transmission beams are condensed through condenser lens 14. Then the light volume is detected via photo detector 5. Thus the shading can be decreased, increasing the photo sensitivity. |
