Electric lamp and discharge devices: systems – Discharge device load
Patent
1978-01-11
1979-11-27
La Roche, Eugene R.
Electric lamp and discharge devices: systems
Discharge device load
2523014P, 313487, 315163, 362 2, H01J 6148
Patent
active
041762991
ABSTRACT:
Method and device for efficiently generating white light with good color rendition of illuminated objects. This is achieved by blending three different colors of light, namely, a green to yellow-green color of light, an orange to red color of light, and a purplish-blue to greenish-blue color of light. The relative intensities of the blended colors of light are selected to produce white light of predetermined ICI coordinates. The resulting blended light has at most only a limited amount of radiations of a wavelength shorter than 430 nm and at most only a limited amount of radiations of a wavelength longer than 630 nm. Also, the blended light has at most only a limited amount of radiations of a wavelength of about 575 nm and at most only a limited amount of radiations of a wavelength of about 500 nm.
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La Roche Eugene R.
Palmer W. D.
Westinghouse Electric Corp.
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