| 摘要 |
PURPOSE:To make the manufacturing cost of the titled apparatus inexpensive, and to facilitate the design of the titled apparatus as the titled apparatus which enables to plural color display and has good irradiation quality by arranging a color filter at the top of a 1st light guide body and by changing optionally the color filter by a drive mechanism. CONSTITUTION:A light source 12 is attached within a light box 11, and the color filter 14 is arranged at the top of the 1st light guide body 13, and the color filter 14 is selected to the prescribed color filter by changing the color filter by mean of the drive mechanism 15. A 2nd light guide body 16 is arranged in front of the color filter 14, and a 3rd and a 4th light guide bodies 17 and 18 are arranged at the top of the 2nd light guide body 16. So that, the good irradiation quality of the titled apparatus is surely obtained by arranging plural color filter between the 1st and the 2nd light guide bodies 13 and 16, even if the single light source 12 is used in the titled apparatus. The 2nd light guide body 16 is designed so as to transmit the light coming from the single light source 12 with a small loss. Thus, the manufacturing cost of the titled apparatus is reduced, and the design of the 2nd light guide body makes easily, and the good display quality is surely obtd.
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