The human eye can not focus blue or yellow light, and when some blue or yellow light and more specifically the 490nm or 580nm wavelengths determined by the “crossover” wavelengths are eliminated, these “crossover” wavelengths will confuse the brain to accept the true color, so blocking these specific wavelengths will enhance all other colors.
High contrast products increase the absorption of the 490nm wavelength narrow band to absorb the cross light in the blue/green area, and then enhance the red by adding 580nm wavelength absorption, effectively improving the contrast of the three primary colors and transitional colors, making the stimulation of the three nerve fibers stronger and the color discrimination more obvious and clear.
