Eyeglass frame with electroacoustic device for the enhancement o

Details Eyeglass frame with electroacoustic device for the enhancement o Eyeglass frame with electroacoustic device for the enhancement o

1988-06-15

1990-02-27

Dzierzynski, P. M.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Combined

381 681, G02C 100, H04R 2500

Patent

active

049040782

ABSTRACT:
An eyeglass frame and electroacoustic device combination for the improvement of natural hearing has temples that contain or carry electronic and electroacoustic devices. To enable persons with reduced hearing to again be able to follow a conversation in noisy surroundings, e.g. to concentrate on a partner during a cocktail party situation, to clearly understand speech in reverberant rooms, to concentrate on sound from a specific direction, to enjoy again theater and concert performances, each temple of the eyeglass frame comprises, directly at its front end, a directional microphone. The direction of maximum sensitivity extends to the front of the wearer, and its direction of minimal sensitivity faces toward the electroacoustic transducer at the rear end of the temple, near the ear of the wearer. This electroacoustic transducer is arranged at the rear end of the temple on an arm of a temple. In the position of use, the transducer is applied gently against only parts of the auricle, possibly also with the interposition of a foam member, which must be acoustically fully transparent. This provides access for the natural sound from the users surrounding to the auditory meatus. This direct and undistorted access is necessary for the buildup of pinna transfer functions which help perceive the directional information of the sound source(s).

REFERENCES:
patent: 1820357 (1931-08-01), Lindstrom et al.
patent: 2207705 (1940-07-01), Cox
patent: 2792457 (1957-05-01), Zapelloni
patent: 4490585 (1984-12-01), Tanaka

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