Light - it has different colours ( The Vedas)

Rigveda 6th anuvakam, 30th hymn 20,21,22 verses

कस्त उषः कधप्रिये भुजे मर्तो अमर्त्ये कं नक्षसे विभावरि

वयं हि ते अमन्मह्यान्तादा पराकात अश्वे न चित्रे अरुषि

तवं तयेभिरा गहि वाजेभिर्दुहितर्दिवः अस्मे रयिं निधारय

Meaning:

"Oh! everlasting light!is there anyone who cannot enjoy your presence?is anyone who can reach you?oh! Usho devi ( name of goddess of light ) you have so many colours.Their spreading finamina is great.It is impossible to enjoy your light from near or far.Your are the daughter of "Dyulokam(world of light)""

Here in this meaning we can easily know that light is having not only white colour but somany colours.So this finamina of light is known to our saints of Vedic age.So this is not a new invention as we are thinking that this finamina is invented by western scientists.