With any ultrasound cleaning machine, always use clean lukewarm water even if the directions call for hot water. The high ...

You just paid a small fortune for new eyeglasses. On top of the cost for prescription lenses and fashionable frames, you ...

Laser lens laser protective windows can be used to laser welding equipment, laser cutting machine. Can protect the damage of the focus lens, due to the AR coating on the surface is designed according ...

An antireflection coating for focusing lenses has absorption rates as low as 18%.