| 摘要 |
PROBLEM TO BE SOLVED: To actualize to form a body shape such as ears by non-contact measurement with easy formation. SOLUTION: When the body impression acquisition program is started, the central axis L of an external ear canal is set as the optical axis (steps 100-104), and a three-dimensional coordinate is repeatedly obtained from the laser beam irradiation direction to the external ear canal and the light receiving position of the light reflected by a line sensor to measure the surface shape of the external ear canal and then the impression is acquired (steps 106-110). For deciding the attachment site of a hearing aid, the three-dimensional shaped model is formed as the external ear canal model to determine a first bending site (a first curve) progressing to the external ear hole and the inside of the external ear canal (steps 112-116), and the range is determined in the mold area (step 118), and the mold model is formed and the data is memorized (steps 120-124). Therefore, the data of the mold model can be easily acquired from the surface shape data acquired by measuring the shape of the external ear canal with the three-dimensional shape measuring device. COPYRIGHT: (C)2007,JPO&INPIT
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