Title:
THERMAL EXCITATION TYPE SOUND WAVE GENERATOR
Document Type and Number:
Japanese Patent JP2008167252
Kind Code:
A
Abstract:
To provide a thermal excitation type sound wave generator capable of efficiently generating sound waves in an audible frequency bands with frequency lower than in the conventional case.
In the sound wave generator 10 having a thermally-conductive substrate 12, a thermal insulation layer 14 with prescribed thickness formed on one surface of the substrate and a heating element thin film 16 comprised of a resistor formed on the thermal insulation layer and electrically driven by AC signal current, a Helmholtz resonator 18 is provided on the heating element thin film. Thus, the sound waves in the audible frequency band with the frequency lower than in the conventional case are efficiently generated.
Inventors:
OKUMURA MIKIO
Application Number:
JP2006355679A
Publication Date:
July 17, 2008
Filing Date:
December 28, 2006
Export Citation:
Assignee:
VICTOR COMPANY OF JAPAN
International Classes:
H04R23/00; H04R1/28
Attorney, Agent or Firm:
Akihiro Asai
Previous Patent: CONTENT REPRODUCTION DEVICE AND CONTENT GUIDE METHOD
Next Patent: APPAREL PRINT SYSTEM AND METHOD, AND PRINT PROGRAM
Next Patent: APPAREL PRINT SYSTEM AND METHOD, AND PRINT PROGRAM