Black light display device

Details Black light display device Black light display device

1993-08-23

1995-05-16

Lazarus, Ira S.

Illumination

Light source or light source support and luminescent material

362 35, 362806, 362255, 362348, 40543, G09F 1902

Patent

active

054166748

ABSTRACT:
An attractive displaying device whereby an ultraviolet radiation lamp, which is hidden from plain view, contains a transparent tube that coaxially receives the ultraviolet lamp and which is rotatable about an axial center line. Images are painted or printed on either the outer surface of the ultraviolet lamp, or on a substantially transparent film placed over the surface of the transparent tube, with a fluorescent ink which emits light when ultraviolet light is radiated upon it. The lighted images are projected onto a concave reflective surface, which may also have images painted on it with a fluorescent ink. The rotatable tube allows for movement of the images against the reflective surface; and a three dimensional effect can be achieved by making it look as if the projected images are passing behind the images that are painted on the reflective surface. The display unconventionally provides illuminated images against a dark background as opposed to a dark image against a light background. The highly illuminated images are clearly visible and highly attractive. If the transparent tube is omitted, then the images must be directly painted on the ultraviolet radiation lamp.

REFERENCES:
patent: 3791058 (1974-02-01), Mollica
patent: 4744012 (1988-05-01), Bergkvist
patent: 4841155 (1989-06-01), Ushida et al.

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