| 摘要 |
PURPOSE:To reduce the manufacturing cost of a downlight-type luminaire by forming the shape of a reflector with a light source and a cylindrical frame and a projecting fitting seat into the shape to be used in common for the outside fitted type and the embedded type fixed to/in the surface of a ceiling plate. CONSTITUTION:In the case of using a luminaire as an outside fitted type, a reflector 2 with light source is built in a cylindrical frame 2 so that a projecting fitting seat 6 is positioned like a cross section A. In the seat 6 side, fitting parts 21a, 21b, 22a, 22b of the reflector 2 are fitted in positioning parts 11a, 11b, 14a, 14b to be fitted to fix the reflector 2 inside of the frame 1. On the other hand, in the case of using a luminaire as embedded type, the reflector 2 is built in the frame 1 so that the seat 6 is positioned like a cross section B. In the seat 6 side, the fitting parts 21a, 21b, 22a, 22b of the reflector 2 are fitted to positioning fitting parts 12a, 12b, 14a, 14b to fix the reflector 2 to the frame 1. A downlight-type luminaire can be thereby used in common as the outside fitted type and the embedded type to be fixed to/in a ceiling plate 32, and a cost is reduced by using the same material in both the case. |
