[accessibleimage] New pocket-size Braille system

Netscape News
Wednesday, October 12, 2005

New pocket-size Braille system 

Blind people may soon be reading messages using the world's first portable 
electronic Braille. 

The pocket-sized display, which can be rolled up like a newspaper, is designed 
to connect to mobile phones and laptops. 

Researchers in Japan have produced a 16-centimetre-square prototype just one 
millimetre thick which weighs five grams. 

It incorporates 144 plastic "paddles" beneath a thin rubber surface which bend 
upwards when an electric current is applied. 

On the tip of each paddle is a sphere under a millimetre across that rises and 
produces a bump in the rubber. 

The bumps produce the Braille message, which can be read the normal way by 
feeling with the fingertips. 

When the current is switched off, the paddles straighten and the bumps 
disappear. 

Inventor Takao Someya, from the University of Tokyo, will present the device at 
the International Electron Devices meeting in Washington DC in December, New 
Scientist magazine reported. 

The device could go beyond Braille to allow the blind to feel images as well as 
words, says Someya. 

But Yoseph Bar-Cohen, an electronics expert at Nasa's Jet Propulsion Laboratory 
in Pasadena said: "If a blind person cannot feel the movement of the dots, the 
device will not be practical." 


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