| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize an exposure device whose structure is simple and which is inexpensive by constituting a device for exposing a digital signal on a photosensitive material, of a light source part at which plural sets of LEDs are arrayed by setting three colors of the LEDs as one set, and an exposure head executing straight motion and a driving mechanism thereof and an optical fiber connected between the exposure head and a light source. SOLUTION: The light source part is constituted of an optical system mixing and condensing the light of three colors of the LEDs at one end of the optical fiber 4. The exposure head 3 is provided with a lens system 7 to condense the light radiated from the top end part of the optical fiber 4 arrayed on photographic paper 2. The exposure head 3 is driven by a motor and a belt 6 so as to execute the straight motion on a guide rod 5.</p> |
