| 摘要 |
PROBLEM TO BE SOLVED: To obtain a convenient, inexpensive hearing aid with crispy sound without using a battery or the like in order to eliminate slight bradyacusia of the aged especially at a high range. SOLUTION: This hearing aid is mounted onto an ear shell by using an elastic thin plate made of paper or the like. A sound collection plate 2 integrated with a support plate 1 and a reflection plate 5 exclude reverberation to obtain sound collection and resonance at the same time. Through turning over the support plate 1 for adhesion, the hearing aid for a right or a left ear can freely be manufactured. An air gap 6 is provided between the sound collection plate and the reflection plate.
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