| 摘要 |
PURPOSE: To prevent a light beam projected from a signal lamp and various indicating lights equipped with reflectors from being excessively constricted. CONSTITUTION: Each corrected point Pcn is fixed on a reference reflecting surface at a distance equal to the amount of a randomly changing deviation Dn from each of many reference points Pbn disposed at an interval of a pitch P along the normal line Nn, and a corrected reflecting surface Sc is formed by a smoothly curved surface passing through each corrected point. Since the corrected reflecting surface Sc is formed into a wave shape by which the reflecting angle of light flux at each corrected point randomly changes, the reflected light beam is not excessively constricted, and lighting of a signal lamp and an indicating light is visualized from a wide angle range. |
