The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 1979
Filed:
May. 19, 1977
Michihiro Tsuchihashi, Amagasaki, JP;
Masato Saito, Amagasaki, JP;
Makoto Yamanoshita, Amagasaki, JP;
Hidetoshi Katsura, Kamakura, JP;
Osamu Myodo, Kamakura, JP;
Koichiro Maeyama, Kamakura, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Beautifully and balancedly colored shadows can be imparted by arranging color lamps in three R, G and B groups, illuminating an object to obtain colored shadows of the object to give the ratios of illuminances by the color light lamps; ##EQU1## in a range surrounded by the following ratios of j-k-l-m-n-e-f-j in the triangular coordinate of FIG. 2 wherein I.sub.R designates an illuminance by only the lamp in the R group; I.sub.G designates an illuminance by only the lamp in the G group and I.sub.B designates an illuminance by only the lamp in the B group.