Super imposed fresnel lenses for channel indicators

Details Super imposed fresnel lenses for channel indicators Super imposed fresnel lenses for channel indicators

1977-10-03

1978-12-19

Corbin, John K.

350211, G02B 2702

Patent

active

041303466

ABSTRACT:
A lens system for magnifying the images of an illuminated one of the channel indicators in a television receiver includes a transparent plate located adjacent the channel indicators and bearing a plurality of fresnel lenses. Each such lens is in optical alignment with an associated channel indicator and is disposed relative to adjacent lenses such that segments of adjacent lenses partially overlap on the transparent plate. The area of overlap between adjacent lenses is time-shared for magnifying a portion of the images associated with adjacent channel indicators.

REFERENCES:
patent: 2460051 (1949-01-01), Welch
patent: 2588373 (1952-03-01), Erban
patent: 2601841 (1952-07-01), Zindel
patent: 3409347 (1968-11-01), Vogel
patent: 3661385 (1972-05-01), Schneider
patent: 3971240 (1976-07-01), Love
patent: 4012127 (1977-03-01), Bolander
patent: 4051535 (1977-09-01), Inglish

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