| 摘要 |
The holder unit supports the lamp so that the central axis of the latter is parallel to the reflective surface, and the casing has a recess for releasable accommodation of the lamp holder. The lamp holder unit has three parts, a holder, an intermediate part, and a fixed part. It has tracks which take the edges of the casing recess. The reflector has an inwardly bent formation which receives the lamp holder part, similarly the casing has an outwardly bent part which accommodates the lamp holder part. In the middle region of the central reflective surface is a pref. parabolic reflector for alight bulb. The reflector is covered by a transparent sheet of e.g. acrylic plastic, the cover sheet being at the cover sheet being at the same height as the reflective surface. The inwardly bent surface in the lower region of the reflector has an upper hole through which the light bulb is fitted. (Provisional basic advised week 8922) |
