3 ms·

What's the problem with coloring the lens?

• sokoloff 12y ago
  LEDs emit a limited number of wavelengths of light. Incandescent lamps emit a broad spectrum of light. Filters (colored lens) can knock out certain colors, allowing others to pass. Filters cannot add colors that aren't there to begin with. You can't just filter a monochromatic light into another color. Filtering LEDs doesn't work as straightforwardly as your incandescent-based intuition would lead you to believe.
• jacquesm 12y ago
  Width of the emitted spectrum.