| 摘要 |
<p>A multi-flow type optical exposure system for a color video printer. The system comprises a LCD part 10 comprising, by red(R), green(G) and blue(B) color lines, a plurality of liquid crystal element lines, and a color filter part 10 comprising, by the red(R), green(G) and blue(B) lines, a plurality of color filters corresponding to the R, G and B color lines of the LCD part 10, respectively, the color filter part having different transmittivities by the lines of each color R, G, B. The color filter part 20 has a transmittivity ratio by the R, G and B lines described as 1/K<0> : 1/K<1> : ------ : 1/K<n><-><1>, wherein K is the number of gradations of each liquid crystal element. The present invention provides advantage in that it increases the number of color gradations even though it uses conventional inexpensive liquid crystal elements of 8 gradations, thereby improving the image quality and reducing the manufacturing cost of the color video printer.</p> |
