Display device

Details Display device Display device

1979-07-25

1981-06-23

Mancene, Gene

Card, picture, or sign exhibiting

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Alphanumeric device

G09F 304

Patent

active

042742170

ABSTRACT:
This invention is directed to a display device comprising light reflecting block means having at least one light path defined by wall members for reflecting the light emitted from a light emitting diode placed within said light path which is provided with an elongated opening for constituting a display segment and composite lens means having a plurality of juxtaposed lens columns and Fresnel part, said composite lens means are located on the light reflecting block means so that the display segment can be illuminated with uniform and intensive brightness upon electrically activation of the light emitting diode.

REFERENCES:
patent: 3226864 (1966-01-01), Rehier
patent: 3481062 (1969-12-01), Du Bois et al.
patent: 3798445 (1974-03-01), Miles
patent: 3895380 (1975-07-01), Nishima et al.

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