Piezoelectric polymeric film balloon speaker

Details Piezoelectric polymeric film balloon speaker Piezoelectric polymeric film balloon speaker

H - Electricity

01

L

349/66

H01L 41/08 (2006.01) H04R 17/00 (2006.01)

Patent

CA 1280821

Piezoelectric Polymeric Film Balloon Speaker Abstract of the Disclosure Piezoelectric polymer film, when conformably adhered to inner or outer curved surfaces of an inflated balloon, for example, acts as a speaker when the metallized coatings of the film are suitably connected to the output of an audio device. The film may be in the form of an helical strip, or individual strips electrically serially connected, or may itself form the inflatable material. Amplifying and impedance matching means may be interposed between the audio output and film coatings.

517067

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