BRAILLE READING SENSOR AND BRAILLE READER

摘要

A Braille reading sensor and Braille reader for correctly reading a Braille character. The output voltage of the sensor is high, and consequently the sensitivity is enhanced. The Braille reading sensor has a piezoelectric converting element provided between first and second electrodes. A thin film deformable by the external pressure and having flexibility is provided above the piezoelectric converting element, and an elastic member made of a material softer than the thin film and elastically deformed by the deformation of the piezoelectric converting element is provided below the piezoelectric converting element.