THE SOUND COLLECTOR WHICH USES ON MICROPHON OF CASSEGRAIN METHOD

摘要

PURPOSE: A sound collector for tracing voices is provided to approach to a minimum distanced spot from a lecturer by tracing the movement of the lecturer, thereby collecting exact sounds. CONSTITUTION: A sound collector for tracing voices comprises a first reflecting plate(200), a second reflecting plate(300), and a microphone(400). The first reflecting plate has a curvature toward a first direction, thereby reflecting sounds. The second reflecting plate reflects the sounds reflected in the first reflecting plate again. One end part of the microphone is installed in the central part of the first reflecting plate and the other end part of the microphone is spaced from the second reflecting plate so that the microphone collects the sounds re-reflected in the second reflecting plate and converts the same into electrical signals. The microphone comprises a guide module. The guide module forms a separation space with an inner surface of the second reflecting plate and guides the re-reflected sounds by being joined to the other end part of the microphone.