Low profile episcopic projector and opaque materials therefor

Details Low profile episcopic projector and opaque materials therefor Low profile episcopic projector and opaque materials therefor

1974-08-26

1976-03-30

Aegerter, Richard E.

Optics: image projectors

Episcope

Reflector between lamp and screen

353 44, 353121, 353 65, G03B 2106

Patent

active

039471039

ABSTRACT:
The design of a large copy projector is such that its projection path extends rearwardly and obliquely so that the projector and the viewing screen can be viewed side-by-side. This projector uses an opaque copy sheet characterized by a lower specularly reflecting face that is accessible to the optical system from below but that can be marked from above by a chemical reactant ink from a user's pen or the like. Simultaneously, the upper face is unobstructedly available for direct observation and manual access, and the lower face is unobstrusively available for imaging projection through a folded optical path below the copy sheet and a wide angle projection lens positioned at the side of the copy sheet.

REFERENCES:
patent: 2542718 (1951-02-01), Snell
patent: 3249002 (1966-05-01), Roop

Affiliated with

Also associated with

Rating

Low profile episcopic projector and opaque materials therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low profile episcopic projector and opaque materials therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low profile episcopic projector and opaque materials therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-517897