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超声波牙刷这种牙刷—端连着塑料管,另—端接在水龙头上,在刷牙时从牙刷毛中喷出一束细小的水柱,并产生气泡和超声波。这种牙刷与普通牙刷相比,不但清洁效率高,而且对于牙龈有保健按摩作用,也不需要用牙膏,它对龋齿和牙周病有很好的保健预防作用。超声波眼镜日本—家公司研制成功—种专供盲人使用的超声波眼镜,这种眼镜附有可变波长超声波脉冲发生器,它所发出的超声波在遇到障碍物时能够反射,其反射波可被眼镜两则的接收器所接收。所以盲人一旦戴上这种超声波眼镜,便能辨别出前方的障碍物了。
Ultrasonic Toothbrush This type of toothbrush - attached to a plastic tube at the end and terminated on a faucet - emits a small stream of water from the bristles and creates bubbles and ultrasound when brushing. Compared with ordinary toothbrush, this toothbrush not only has high cleaning efficiency, but also has the function of health massage for the gums, does not need toothpaste, and has good health preventive effect on dental caries and periodontal diseases. Ultrasonic glasses Japan - the company successfully developed - a kind of special for the blind use of ultrasound glasses, glasses attached to the variable wavelength ultrasonic pulse generator, which emits ultrasound in the encounter obstacles can reflect, the reflected wave can be Receiving glasses two receivers. So blind people wear this kind of ultrasonic glasses, you can identify the front of the obstacles.