. Journal of electricity . November 1, 1920] JOURNAL OF ELECTRICITY 447. The new Color-Ray unit for use in win-dow display lighting which was presentedfor the first time at the recent conventionof the International Association of DisplayMen. Colored Lights For the ShoV Window Many different makeshift schemes have been used toproduce the desired color effects in display windows. In somecases gelatin has been applied and harnessed to the reflectorby various Incandescent lamps have been coloredwith various kinds oflamp dip, but thishas proved unsatisfac-tory because the heatof the lamp
. Journal of electricity . November 1, 1920] JOURNAL OF ELECTRICITY 447. The new Color-Ray unit for use in win-dow display lighting which was presentedfor the first time at the recent conventionof the International Association of DisplayMen. Colored Lights For the ShoV Window Many different makeshift schemes have been used toproduce the desired color effects in display windows. In somecases gelatin has been applied and harnessed to the reflectorby various Incandescent lamps have been coloredwith various kinds oflamp dip, but thishas proved unsatisfac-tory because the heatof the lamp rapidlyfades out the color. Theuse of natural coloredglass lamps of the Maz-da C type has alsoproved unsatisfactory. The engineering de-partment of the Na-tional X-Ray ReflectorCompany has devel-oped a means of pro-ducing colored light inshow windows whichseems to have solvedthe problem of coloreffects. The device which they present will be called by thetrade name Color-Ray and consists of a metal frame whichfits over the mouth of the X-Ray Jove and Jupitor Reflector
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectricity, bookyear
