Reading device for the visually handicapped

Details Reading device for the visually handicapped Reading device for the visually handicapped

1983-09-01

1985-10-22

Frankfort, Charles

Optics: image projectors

Episcope

Reflector between lamp and screen

353 65, 353 81, G03B 2106

Patent

active

045484856

ABSTRACT:
An optical viewing device enabling visually handicapped persons to read ordinary textual material in full color, the device comprising a stage for holding the material and an X-Y positioner used to move the textual material on the stage; lights beneath the stage for illuminating the material; an objective to form a real image; a prism or mirrors for reflecting the imaging rays from the objective through 90 degrees and for reinverting the rays; two mirrors to reflect the rays to an approximately vertical, directional, controlled brightness rear projection screen, so that the imaging rays successively passing from the objective to the reflecting/reinverting prism or mirrors and the two mirrors form a real, erect enlarged image on the screen.

REFERENCES:
patent: Re28274 (1974-12-01), Altman
patent: 2271296 (1942-01-01), Hargrave et al.
patent: 2711669 (1955-06-01), Erban
patent: 2937569 (1960-05-01), Wilton
patent: 3679299 (1972-07-01), Burgess et al.
patent: 3817613 (1974-06-01), Cinque
patent: 4185901 (1980-01-01), Behr

Affiliated with

Also associated with

Rating

Reading device for the visually handicapped does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reading device for the visually handicapped, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reading device for the visually handicapped will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-119288