| 摘要 |
PURPOSE: To improve the utilization factor of light source energy and to eliminate diffused light in the case of radiation by arranging a light source on the primary focal point of an ellipse reflector part and arranging a secondary focal point so that the secondary focal point is nearly aligned with the focal point of the reflector part. CONSTITUTION: The light source 1 of the reflector system irradiating an object at a small irradiation angle is arranged on the primary focal point F2 of the ellipse reflector part R2. The secondary focal point F3 of the part R2 is nearly aligned with the focal point F1 of a parabolic reflector part R1 so as to be arranged. By the configuration, the light beams having a specified irradiation angle among the light beams from the light source 1 are reflected by the part R2, so that the part R1 is widely irradiated, and the reflected light beams are reflected furthermore at the part R1. Since the light beams having the irradiation angle which is larger than that of the previous ones are made directly incident on the part R1 to be reflected, nearly entire light beams emitted from the light source 1 are made incident on the part R1 so as to be utilized with high efficiency, and dazzling diffused light is eliminated. |
