| 摘要 |
<p>A condenser microphone comprises a casing body (1) including a top surface (1a) having an acoustic hole (15) formed therein, the casing body (1) accommodating therein a capacitor section (C) including a diaphragm electrode (14), a fixed electrode (23), and an electret membrane (24) provided in the diaphragm electrode (14) or the fixed electrode (23), a converting circuit section (45) for converting variations of capacitance of the capacitor section (C) into electric signals for output, and a conductive section (33) for making the capacitor section (C) electrically conductive with the converting circuit section (45). The casing body (1) is formed from a combination of a first plate member (10) defining the top surface (1a), a second plate member (40) defining a bottom surface (1b) and an intermediate member (20, 30) provided between the first plate member (10) and the second plate member (40). The condenser microphone further comprises conductive surface terminal elements (S) extending from the top surface(la) through side surfaces (1c) to the bottom surface (1b) among outer surfaces of the casing body (1) to be conductive with the converting circuit section (45).</p> |
