Page 4 of Sunglasses & Eyewear News

CR39 is carbon acid propylene acetic acid, or allyl diethylene glycol carbonate, which is the most widely used material for the production of ordinary resin lenses. CR39 was used in the...

The reflection of the lens can reduce the light transmittance and form an interference image on the retina, which affects the quality of the image and the appearance of the wearer. For example,...

TPU (Thermoplastic Polyurethane) Thermoplastic TPU elastomer is made of MDI containing NCO functional group and POLYOL, 1.4BG containing OH functional group through extrusion and mixing....

TPEE (Thermoplastic Polyester Elastomer) is a block copolymer containing polyester hard segment and polyether soft segment. Among them, the soft segment of polyether and the uncrystallized...

TR-90 is a polymer material with memory properties. It is currently the most popular ultra-light frame material in the world. It has the characteristics of super toughness, impact resistance...

 Acetate glasses are made of high-tech plastic memory plates. The current sheet material is mostly acetate fiber, and a few high-end frames are propionate fiber. The acetate plates is divided into...

1. About Blu-ray Blue light is part of the natural visible light, and both sunlight and electronic screens emit blue light. It is an important part of visible light. Blue light has a short wave...

Photochromic Lenses Photochromic Lenses According to the principle of reversible light and color interaction,the lens can quickly darken under the irradiation of light and ultraviolet rays,...

 Nylon lens material: The main material selected for the nylon lens is TROGAMIDCX,a special transparent polyamide,which is a kind of ultra-micro anti-ultraviolet transparent crystal material. Its...

TAC polarized lens is one of the most widely known main products in the eyewear industry. The materials of TAC is light, thin, function of polarization and high matching, outstanding characteristics...

Polyamide, which is PA are also called Nylon. It was first developed resins for fiber by an American company, which were industrialized in 1939. in the 1950s, it began to develop and produce...

PC,which is Polycarbonate, is the thermoplastic resin of which the main chain molecules containing—[O-R-O-CO]—, according to the different ester groups in the molecular structure,...