1976-06-28
1978-09-26
Brown, Thomas W.
G02B 1700
Patent
active
041172655
ABSTRACT:
A sound-to-optic translator system for the hard-of-hearing is disclosed. Light-emitting diodes of different colors provide sources of light that are hyperoptically (out-of-focus) located directly in front of the pupil of the eye and along the normal line-of-sight to project overlapping color discs onto the macula area of the retina to be sensed by the cones. The diodes are supported by a T member having a width approximately one-half or less than the diameter of the pupil under normal reading light intensity and positioned at less than distance of focus of the eye. Audio frequencies are separated into a plurality of bands by bandpass filters and outputs of the respective filters drive respective diodes to hyperoptically transmit colors onto the macula.
REFERENCES:
patent: 3463885 (1969-08-01), Upton
patent: 3604852 (1971-09-01), Weintraub
patent: 3936605 (1976-02-01), Upton
Brown Thomas W.
Kemeny E. S.
Rengel Richard J.
Rengel Richard J.
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