Document Type and Number:
Japanese Patent JPS4853713
Kind Code:
A
Abstract:
An electrostatic type electroacoustic transducer having improved acoustic characteristics is composed of a piezoelectric polymer-type oscillator having a stretching-type piezoelectric effect, such as a polarized polyvinylidene fluoride film having electrodes vacuum-coated on both surfaces and at least one fixed electrode disposed facing the oscillator and spaced therefrom.
Application Number:
JP8785471A
Publication Date:
July 28, 1973
Filing Date:
November 04, 1971
Export Citation:
International Classes:
H04R17/04; H01L41/08; H03H9/00; H04R1/10; H04R17/00; H04R19/00; H04R19/01; H04R23/02; (IPC1-7): H04R17/00