| 摘要 |
PURPOSE:To cast a light with intermediate tint at all times by placing a shutter plate provided with a specifically shaped window on a color plate with the three primary colors arranged in a specific condition, rotating the plates, and synthesizing the three primary colors appropriately. CONSTITUTION:On the surface of a color plate 15 divisions 23-29 are formed as divided evenly with the center of the color plate 15 are the reference point wherein the circumferences 18-22 having a certain width are drawn in a plurality of steps. A group of three primary colors, for ex. red A, blue B, and green C, are given sequentially as named in the lowermost divisions situated innermost, and green is given to the division uppermore the red in divisions formed uppermore each division, and the red and blue are given after this green one after another. The uppermore divisions are prepared in the same manner. Over the color plate 15, a shutter plate 30 is arranged, and the shape of a window 30' provided in this shutter plate 30 is made so that, for ex, all reds A appear. When the color plate 15 is fixed and the shutter plate 30 rotated, so-called intermediate color can be cast at all times. |
