(1) (txtwriter.com) Each ignites its own debate, so I will focus primarily on the role of the appendix in the human body. The appendix is present in many primates, and primarily (pun intended) used to aid in the digestion of cellulose. Located between the small and large intestines, the appendix and neighboring caecum slows down the body's digestive process.
Products / Optics / Optical Lenses / UV Lenses. UV Lenses. UV Lenses are used in many collimation, focusing, or laser applications that operate in, or extend into, the ultraviolet spectrum. UV Lenses are optical lenses consisting of a single or multiple elements that have been designed for optimal performance when used with ultraviolet light.
If you are an active person, polycarbonate lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear. Polycarbonate lenses are thinner and lighter than regular CR-39 plastic lenses. They also offer 100% protection from the sun's harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses.