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How Blue Block Glasses Work Blue block glasses are specifically designed to reduce harmful blue light exposure to the eyes. Blue light, which ranges from 380nm to 500nm in waveleng...
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1.67 Semi-Finished Single Vision Lens Custom
1.67 Semi-Finished Single Vision Lens
The semi-finished lens is based on the patient’s prescription to create the most personalized RX lens of the original blank. Different prescription power in the requirement of different semi-finished lens types or base curve. The semi-finished lenses are produced in a casting process. Here, liquid monomers are first poured into moulds. Various substances are added to the monomers, e.g., initiators and UV absorbers. The initiator triggers a chemical reaction that leads to hardening or “curing” of the lens, while the UV absorber increases the UV absorption of the lens and prevents yellowing.
About
Jiangsu Green Stone Optical Co., Ltd.
Jiangsu Green Stone Optical Co., Ltd. is professional China 1.67 Semi-Finished Single Vision Lens Suppliers and Custom 1.67 Semi-Finished Single Vision Lens Factory with strong combination of R&D, production and sales.
Our lens products involves almost all types of lenses. Product range covers 1.499, 1.56, 1.60, 1.67, 1.70 and 1.74 index, including single vision,bifocal, progressive, blue cut, Photochromic, blue cut photochromic, Infrared cut etc. with HC, HMC and SHMC treatment. Besides finished lens, We also manufactures semi-finished blanks. The products are registered with CE&FDA and our production certified by ISO9001& ISO14001 standards.
We positively introduce excellent management technology, comprehensively import Corporate Identity System and enhance the external image of company and brand.
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How Blue Block Lenses Work Blue block lenses, as the name suggests, are specifically designed to block or filter out harmful blue light. Blue light is a high-energy light that rang...
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Basic Principles of Bifocal Lens and Progressive Lens Bifocal Lens refers to eyeglass lenses divided into two optical zones, typically with upper regions correcting distant vision ...
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Photochromic optical lenses, as a type of smart eyewear technology, have become an essential choice for many people due to their ability to automatically adjust the lens color base...
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With advancements in technology and the development of the eyewear industry, an increasing number of people are choosing eyewear to correct their vision problems. Among the most co...
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Add: No. 988 Yingchun Road, Industry Zone, Danyang,Jiangsu,China -
Email: [email protected] / [email protected] -
phone: +86 13306102698
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Jiangsu Green Stone Optical Co., Ltd. is a professional optical lens manufacturer with strong combination of R&D, production and sales. We have production base of 65000 square meters and more than 350 employees.
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OEM/ODM 1.67 Semi-Finished Single Vision Lens Factory
OEM/ODM 1.67 Semi-Finished Single Vision Lens Factory