| 摘要 |
Smoke alarm comprising at least one internal chamber, which chamber has at least one opening towards the surroundings, such that air may pass through the chamber, and where means are provided for emitting light and means for detecting said light is provided in or around said chamber, where the change in light intensity registered by the means generates a smoke alarm. Along the periphery of the chamber a plurality of air foils are arranged, where the airfoils substantially have a cross - sectional shape corresponding to an airplane wing and where said airfoils are arranged at an angle relative to an imaginary radius of the internal chamber, the smoke alarm may be integrated in an electrical outlet for a light fixture, and in particular a light fixture suitable to be mounted in a ceiling or other surface from which electrical equipment and in particular lamps and the like suspended. |
