| 摘要 |
PURPOSE:To shorten cycle time of photography for forming a picture in a specific area of a roll film to the time necessary for exposure, by providing buffer means where a film is steped at parts before and after exposure between the position of a heating means and the position of an exposing means. CONSTITUTION:The film 1 is preheated by a preheating part A to generate photosensitive characteristics and sent to and exposed at an exposure part C to form a latent image; and it is developed thermally at a heat development part E and discharged. Buffer parts B and D are provided before and behind the exposure part C; several preheated frames of the film are started temporarily before exposure as preparations for the exposure, thereby reducing the influence of preheating time. Further, several exposed frames are stated temporarily to reduce the influence of long exposure time, and the rate determination of the cycle time of the influence is performed to obtain exposure time, shortening one cycle to approximately the exposure time. |
