The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 1983
Filed:
Oct. 17, 1980
Michael L McCartney, Durham, NC (US);
Research Triangle Institute, Research Triangle Park, NC (US);
Abstract
A device for producing images of a plurality of speech information symbols associated with speech sounds produced by a speaker into the field of view of a hearing-impaired person with one or more light emitting or illuminated arrays mounted paraxially with the viewer's line of sight on a transparent plate which subtends and mounts an adjacent eyeglass lens. A mirror is mounted on the lens to produce a magnified image in the field of view and reflect the image back to the viewer. The interior surface of the lens may be coated to form the mirror or spherical dimples may be ground into the surface before coating and the coated dimples then filled with a material having substantially the same refractive index as the lens.