LED illuminated image display

Details LED illuminated image display LED illuminated image display

1995-12-26

1998-04-28

Cariaso, Alan

Illumination

Revolving

362 27, 362231, 362245, 362251, 362800, 362812, F21V 1304

Patent

active

057436169

ABSTRACT:
An LED illuminated image display comprised of one or more thin, integral panels of light transmitting material (e.g., clear or translucent plastic or glass), with each panel having at least one LED imbedded in an edge thereof. Light from the LED(s) directly impinges on and is diffused through the light transmitting material and to a surface of the panel, having its refractory parameters locally disrupted, such as by being scratched or integrally etched with an image rendering. The disruption, such as by etching, with depth and spacing control, is effected to change the refraction of a portion of the panel surface whereby intensity of directly impinging LED light transmitted therethrough is made to vary, whereby an image such as of an art rendering is perceptible. Combination of panels, utilizing switching timers provides for animation displays.

REFERENCES:
patent: 1930359 (1933-10-01), Hilgenberg
patent: 1937957 (1933-12-01), Hotchner
patent: 3267598 (1966-08-01), Olesen et al.
patent: 4555694 (1985-11-01), Yanagishima et al.
patent: 4974354 (1990-12-01), Hembrook, Jr.
patent: 5124890 (1992-06-01), Choi et al.
patent: 5239450 (1993-08-01), Wall
patent: 5375043 (1994-12-01), Tokunaga

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