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You can't change blue light to another color with a filter. The amber light has to be in the spectrum emitted by the lights to begin with. The filter just isola
by ams6110 8y ago
You can't change blue light to another color with a filter. The amber light has to be in the spectrum emitted by the lights to begin with. The filter just isolates it.
- maxerickson 8y agoA lot of "white" LEDs have a layer that absorbs some blue light and reemits it at a longer wavelength, with the mix looking white: http://www.photonstartechnology.com/learn/how_leds_produce_white_light http://www.photonstartechnology.com/learn/how_leds_produce_w... It's not a filter of course.
- ghusbands 8y agoThat's overly simplistic - you can use phosphors (and similar chemicals) to change the color of the light. The phosphors absorb light and emit light of different colors. Many daylight bulbs do this.