Yellow Lens: Strictly speaking, these lenses are not solar lenses because they do little to reduce visible light, but in foggy and dusk, yellow lenses can increase contrast and provide a more accurate view, so they are also called night vision goggles. Some young people wear "sunglasses" with yellow lenses as decoration.
Light blue: light pink and other lenses: same decorative more than practical lenses.
Dark green lens: absorb hot gas, bring cool and refreshing feeling, but translucent luminosity and clarity are lower, suit to wear when basking in the sun, unfavorable when driving.
Blue lenses: you can wear sun blue lenses when playing on the beach. Blue lenses can effectively filter out the light blue reflected by the sea water and the sky. We should avoid using blue lenses when driving because they can confuse us with the color of traffic signals.