| 摘要 |
PROBLEM TO BE SOLVED: To form a proper image even when the exposure time of a photosensitive material is changed. SOLUTION: When a moving speed of a condensing means moved by a moving means is changed to V2 from V1 , the exposure time of the photosensitive material is changed to 1.0(s) from 0.12(s). Then the stop value of an image forming lens by which the color balance of the photosensitive material is maintained is obtained based on relation between the exposure time T=0.1(s) of the photosensitive material corresponding to the moving speed V2 changed by the moving means and the color density of the photosensitive material. Then, the stop value is adjusted so as to become the obtained stop value. |
