The keyboard features a photodiode-integrated switch matrix and laser light source built into special grasses. The operator wears these glasses for input of data. Instead of pressing key,he spots laser light at each photo-switch that corresponds to a specific character to be entered.
Conformed to the standard keyboard design,this keyboard can be used with most Japanese word processors and softwear packages currently available on the market. The new device will pave the way ffor people with disabilities to access to advanced communications facilities.