| 释义 |
Optacon|ˈɒptəkɒn|
Also optacon.
[f. optical a. + tactile a. + converter.]
A device for enabling a blind person to recognize printed characters by touch, the fingertip being placed on an array of many tiny rods certain of which vibrate in accordance with the pattern of light from the characters.
1970N.Y. Times 24 July 33/2 Another technique—that of turning symbols and letters into touch—has also become a practical reality recently because of a light⁓weight, portable transistor device developed by Prof. John Linvill..and Prof. James Bliss... This device, called the Optacon, consists of a tactile stimulator and an optical scanner, connected together electronically. 1973Times 26 May 16/5 Mr Richard Dufton, director of research for St Dunstan's, said..that the Optacon imposed a severe learning task because the reader's right hand had to track the camera accurately across the page, picking up the print letter by letter. 1975Telegraph (Brisbane) 18 May 22/3 The optacon is being used successfully in Washington, U.S., by a blind radio announcer. |