Category:Optophone
device used by the blind that scans text and generates time-varying chords of tones to identify letters  | |||||
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An optophone is a device used by blind persons that scans text and generates time-varying chords of tones to identify letters.
Media in category "Optophone"
The following 8 files are in this category, out of 8 total.
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Optophone - Jul 1922 Harpers.jpg 933 × 668; 114 KB
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Optophone by Clement Clarke. Wellcome L0011204.jpg 1,266 × 1,495; 554 KB
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Optophone by Clement Clarke. Wellcome L0011205.jpg 1,220 × 1,477; 344 KB
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Optophone in detail.jpg 1,557 × 1,097; 1.22 MB
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Picture of a Battelle Model D Optophone.png 877 × 589; 285 KB
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Schematic Diagram of Battelle Optophone.png 877 × 589; 331 KB
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Tone generating method of the FM-SLIT.PNG 758 × 517; 36 KB
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The 'Optophone', a reading device for the blind Wellcome V0048477.jpg 3,437 × 2,029; 1.71 MB
