What Types of 3D Glasses Are Commonly Available? The world of 3D viewing relies on three primary types of 3D glasses, each operating on distinct technical principles. Polarized 3D glasses work by filtering light waves—each lens is designed to block s...
read moreWhat Key Challenges Do Humid or Cold Working Environments Pose to Safety Glasses? Humid or cold working environments—such as food processing plants, cold storage warehouses, and outdoor winter construction sites—present two core challenges for safet...
read moreAs people enter their mid-40s, presbyopia—the natural loss of near-focusing ability—often begins to set in, making reading fine print or using digital devices a strain on the eyes. For many, reading glasses become an essential daily tool, but not all...
read moreWhat Frame Materials Balance Lightness and Strength?Kids glasses comfort starts with weight—frames should ideally weigh under 20 grams to avoid straining a child’s developing nose and ears . Flexible plastics like TR90 are ideal, as they resist break...
read moreNEWSLETTER
Copyright © Zhejiang Qiliang Optical Technology Co., Ltd. All Rights Reserved. OEM/ODM Rimless Glasses Frames Manufacturers