Display device for telephone or a similar electric appliance

Details Display device for telephone or a similar electric appliance Display device for telephone or a similar electric appliance

1985-03-08

1988-10-11

Mancene, Gene

Card, picture, or sign exhibiting

Illuminated sign

Edge illuminated

40564, 362 24, 362 26, G09F 1318

Patent

active

047761202

ABSTRACT:
In a display device employable for telephone or the like electric appliance, a light permeable member with information carried thereon includes a first reflective portion at which a light beam emitted from a light source is reflected in the light permeable member in the radial direction relative to the optical axis of light beam from the light source and a second reflective portion at which a part of the reflected light beam moving in the light permeable member in the direction away from the information is reflected again to be transmitted to the latter. The information on the light permeable member can be clearly recognized by an user with the aid of the light beam which has been collected around the information after reflection at the first and second reflective portions.

REFERENCES:
patent: 2159095 (1939-05-01), Madan
patent: 2561885 (1951-07-01), Prideaux et al.
patent: 2999148 (1961-09-01), Kay
patent: 3144643 (1964-08-01), Andersson
patent: 3406475 (1968-10-01), O'Donnell
patent: 3664047 (1972-05-01), Ruppert
patent: 4151582 (1979-04-01), Grumberger

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