Illuminating display device

Details Illuminating display device Illuminating display device

1994-12-23

1997-11-04

Au, Amelia

Communications: electrical

Visual indication

Transparent or translucent indicator with means for blocking...

200311, 362 26, G08B 500

Patent

active

056844689

ABSTRACT:
An illuminating display device for limiting the travel direction of beams. This device includes a main body which is transparent; a display layer disposed on the surface of the main body and including a display mark composed of a cut-out section; a reflective layer formed in the cut-out section on the surface of the main body and having a pattern including light beams reflecting parts and light beams transmitting parts respectively scattered thereover; and a light source disposed in the main body. In this construction, the main body includes a refracting medium, disposed in a passage for light beams emitted from the light source, for regulating the direction of beams which travel outside the device by refracting the beams.

REFERENCES:
patent: 4310871 (1982-01-01), Adachi
patent: 4385221 (1983-05-01), Dorfler
patent: 4644455 (1987-02-01), Inglis et al.
patent: 4874224 (1989-10-01), Gutman et al.
patent: 5146057 (1992-09-01), Hellebuyck et al.
patent: 5165772 (1992-11-01), Wu

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