| 摘要 |
PURPOSE:To form a sufficiently visionary optical pattern by arranging a transparent substance between polarizing filters arranged with an interval, irradiating light from the outside of one polarizing filter and projecting its optical pattern on the surface side of the other polarizing filter plate. CONSTITUTION:When a designed shape part of the transparent substance 14 such as a cellophane or acetate film or sheet is put on the polarizing filter plate 6 constituting the ceiling surface of a room 1 and then the switches of lamps 2 are turned on, the light rays of the lamps 2 are reflected by a bottom reflecting plate 4 and side reflecting plates 4, 5 successively and irradiated to the polarizing filter plate 6 on the ceiling surface and the polarized rays are refracted by the transparent substance 14, divided in each color based upon the difference of wavelength and projected on a polarizing filter plate 7, so that the light rays are projected as a colorfull visionary optical pattern. The optical pattern generates the difference of brightness based upon the quantity of light by changing the projection angle of the lamps and is remarkably changed by changing the shape or state of the transparent substance 14, so that a complexly designed constitution is projected as a unique optical pattern having balanced coloring. |
