| 摘要 |
<p>A signalling device for roads, railways, rivers or the like comprises at least one red light (1) consisting of a fluorescent discharge lamp fixed to a reflective base which is in turn mounted in a housing (4) having an opening facing said florescent lamp. This opening is closed by a transparent optic (5), and at least one other light (2, 3) of another colour and consisting of a mercury vapour lamp is mounted in a housing (6, 8). An air circulation circuit (10, 11, 12) passes through both the housing (4) for the red light (1) and the housing (6, 8) for the light (2, 3) of another colour. Application: signalling.</p> |
