An aroma generator that is rendered operative only when one turns on an electric light bulb in the room in which the generator is installed, the generator then functioning to discharge an air current into the room conveying an aromatic vapor which modifies the prevailing atmosphere. Included in the generator...http://www.google.fr/patents/US4695435?utm_source=gb-gplus-shareBrevet US4695435 - Light-activated aroma generator
