| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and bright projector type room lamp wasting no light. SOLUTION: This projector type room lamp is equipped with a reflector 1 having an elliptical reflecting surface 1a, a light source 2 disposed at the first focus point position of the reflector 1, a shade part 3 provided in front of the opening end of the reflector 1 while having a beam transmitting part 12 to limit the distribution range of the luminous intensity of outgoing light reflected by the reflector 1, and a projection lens 4 provided din front of the shade part 3 to control light flux transmitted through the beam transmitting part 12 to any optional luminous distribution intensity, and the beam transmitting part 12 serves as a light diffusing filter. |
