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US 4,233,654 AGranted
Method of lighting for colored shadows
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMichihiro Tsuchihashi, Masato Saito, Makoto Yamanoshita, Hidetoshi Katsura, Osamu Myodo, Koichiro Maeyama
Life of this patent
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Abstract
Beautifully and balanced colored shadows can be imparted by arranging an R unit for light sources for yellow to red; a G unit for light sources for green and a B unit for light sources for violet to blue with each predetermined space wherein each unit comprises a plurality of light sources in each group adjacent each other.
Claims4
A method of obtaining sharply defined and illuminated color shadows, comprising the steps of:
- arranging first, second and third light sources in spaced apart relationship;
- providing a plurality of closely adjacent color lights in each of said first, second and third light sources, with the color lights in the first light source producing light for yellow to red colors, the color lights in the second light source producing light for green color, and the color lights in the third light source producing light for violet to blue colors;
- and
- orienting the plurality of lights in the first, second and third light sources so that one light from each light source is aimed in a first direction to thereby obtain illumination of an area with light from each of the three light sources, and aiming at least another light from each of the light sources in at least another direction to thereby obtain illuminatin of another area with light from each of the three sources, each such area therefore being illuminated as if by light from a common source and the phenomenon of shadow doubling thus being avoided.
1 more element
Dependencies are inferred from the claim text.