| 摘要 |
PURPOSE:To burn in different symbols of uniform different colors on a color film, and to burn in even a symbol of a delicate point or line, by providing one exposure means which has used LEDs whose number is equal to the number of dot projection sources. CONSTITUTION:An exposing means 10 consisting of a combination of a light source 8, and a lens for allowing a light beam of the light source to form an image on the surface of a film 1 on a guide roller 4 is provided so as to be opposed to the surface for leading the film 1 of the guide roller 4. The light source 8 consists of an array of multicolor light emitting LEDs 11, and provided so that the direction of its array becomes vertical to the moving direction of the film 1. When the number of LEDs 11 increases, the number of lines and its thickness increase, and also, when one LED 11 is turned on instantaneously, a dot is burned into the film 1, and when the number of such LEDs 11 increases, the number of dots arranged in the direction being vertical to the moving direction of the film 1 increases, or the dots become a continuous line. In this way, arbitrary symbols of a character, a graphic, etc. can be burned into the film 1.
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