Illumination apparatus and frame to which the illumination appar

Details Illumination apparatus and frame to which the illumination appar Illumination apparatus and frame to which the illumination appar

1997-11-25

1999-02-02

Wong, Don

Electric lamp and discharge devices: systems

Electric switch in the supply circuit

315291, 315360, 315324, 315316, 315314, 315186, 362 1, 362 2, H01J 6196

Patent

active

058669949

ABSTRACT:
An illumination apparatus for illuminating paintings at least a part of which is painted by a particular paint that emits or reflects light upon reception of ultraviolet ray, has a first illumination lamp constituted of an ultraviolet lamp and a second illumination lamp constituted of incandescent lamps. The ultraviolet lamp and incandescent lamps are controlled by a control circuit to be repetitively turned on and off as time elapses in accordance with a control sequence selected by an observer. While the incandescent lamps are turned on, the ultraviolet lamp is turned off to make the painting viewed as, e.g., a daytime landscape without showing, e.g., a nighttime landscape, and while the incandescent lamps are turned on, the ultraviolet lamp is turned on to make the same painting viewed as the nighttime landscape.

REFERENCES:
patent: 3591942 (1971-07-01), Swearingen
patent: 4091441 (1978-05-01), Ott
patent: 4641227 (1987-02-01), Kusuhara

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