This decoupling of light is making use of the total reflection. Since red, green, blue lights have different wavelengths, the limit angles of total reflection are different.
So by designing three faces, the lights are separated. But then the light travels through the glass, the energy might be consumed and cause some errors.
This decoupling of light is making use of the total reflection. Since red, green, blue lights have different wavelengths, the limit angles of total reflection are different.
So by designing three faces, the lights are separated. But then the light travels through the glass, the energy might be consumed and cause some errors.