Pseudo-luminous panel, substrate therefor, and display element a

Details Pseudo-luminous panel, substrate therefor, and display element a Pseudo-luminous panel, substrate therefor, and display element a

1992-02-24

1994-09-27

Henry, Jon W.

Optical: systems and elements

Diffusing of incident light

359546, 40560, 40427, G02B 502, G09F 1300, A47F 1104

Patent

active

053511530

ABSTRACT:
A pseudo-luminous panel has a substrate and a thin film optical color filter formed all over the main surface of the substrate with or without a reflecting film interposed therebetween. The main surface of the substrate is formed by obliquely downward and upward band-like surface portions alternately arranged side by side in a vertical direction. Obliquely downward band-like surface portions of the reflecting film, formed on the obliquely downward band-like surface portions of the substrate, or the obliquely downward band-like surface portions of the substrate are each a smooth reflecting surface. Obliquely upward band-like surface portions of the reflecting film, formed on the obliquely upward band-like surface portions of the substrate, or the obliquely upward band-like surface portions of the substrate are each an irregular or uneven reflecting surface. With the pseudo-luminous panel of such a structure, it is possible to prevent that a pattern on the panel is too dazzling in the daytime and too dark at night to recognize in a predetermined hue when the panel is disposed above ground outdoors.

REFERENCES:
patent: 2043690 (1936-06-01), Arbuckle et al.
patent: 2154360 (1939-04-01), Scheel et al.
patent: 2184721 (1939-12-01), McIlvanie
patent: 2380447 (1945-07-01), Jungersen
patent: 3353897 (1967-11-01), Lemelson
patent: 3359671 (1967-12-01), Nier et al.
patent: 3971692 (1976-07-01), Anderson
patent: 4138515 (1979-02-01), Dial

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