Television magnification apparatus

Details Television magnification apparatus Television magnification apparatus

1985-09-09

1986-05-20

Corbin, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358237, 358250, G02B 308

Patent

active

045897395

ABSTRACT:
Apparatus for magnifying and projecting an image from a screen of a television receiver, includes a housing supported on the front face of the television receiver, a reflecting mirror secured to the rear wall of the housing at a 45 degree angle with respect to the screen of the television receiver, and a lens housing slidably received within the housing and including only two Fresnel lenses for magnifying and projecting the image from the screen, the lenses being substantially flat and parallel to each other, and spaced apart a predetermined fixed distance, whereby a sharp, enlarged image is obtained.

REFERENCES:
patent: D257039 (1980-09-01), Petrie
patent: 2260228 (1941-10-01), Moller et al.
patent: 3525807 (1970-08-01), Herriott et al.
patent: 3800085 (1974-03-01), Ambats et al.
patent: 4074322 (1978-02-01), Cammilleri
patent: 4082433 (1978-04-01), Appeldorn et al.
patent: 4309074 (1982-01-01), Granieri
patent: 4391495 (1983-07-01), Mazurkewitz
patent: 4439027 (1984-03-01), Shioda et al.
patent: 4457594 (1984-07-01), Hodges

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