Wednesday, November 21, 2007

My New Eye-Shield


Just bought a new Oakley's Radar Hydrophobic eye wear. It is a white frame with hydrophobic lens. What is hydrophobic?
Water drops on the hydrophobic surface of grass

According to explaination in wikipedi, hydrophobic molecules tend to be non-polar and thus prefer other neutral molecules and nonpolar solvents. Hydrophobic molecules in water often cluster together forming micelles. Water on hydrophobic surfaces will exhibit a high contact angle. Still don't understand? See the water-drops in the picture.

When an eye-wear with hydrophobic function, sweat or rain water will be skidded off from the lens (check out the picture below). This is very useful/helpful for cyclist out there. If water are sticked on the eye wear lens, it bias the rider's vision and it is extremely dangerous. Therefore, i sacrifies 50% of my monthly income for this "safety goods" :)



more info on Radar