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In the eyewear market, photochromic lenses (also known as transition lenses) and traditional optical lenses each have unique features. With the continuous advancement of technology...
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1.56 Semi-Finished Flat Top Bifocal Lens Custom
1.56 Semi-Finished Flat Top Bifocal Lens
Flat-top lens were used to correct two different eye prescriptions. Bifocals were easy to spot – they had a line dividing the lens in two, with the upper half for distance vision, and the lower half for reading. The semi-finished lens 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.
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Jiangsu Green Stone Optical Co., Ltd.
Jiangsu Green Stone Optical Co., Ltd. is professional China 1.56 Semi-Finished Flat Top Bifocal Lens Suppliers and Custom 1.56 Semi-Finished Flat Top Bifocal 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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Photochromic optical lenses, which adjust their color in response to changes in light intensity, have become popular for their ability to provide UV protection and comfort. However...
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The Rise of Blue Block Lens in the Modern Visual Environment In the 21st century, human lifestyles have undergone an unprecedented transformation. We have evolved from a species re...
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Modern Vision Protection: Dimensions Beyond Basic Correction In today’s digital age, the function of eyeglasses has evolved far beyond simple refractive correction, such as fixing...
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Design Principles and Visual Distribution of Progressive Multifocal Lenses The core of Progressive Multifocal Lenses (Progressive Lenses) lies in their aspheric geometric design. U...
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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 1.56 Semi-Finished Flat Top Bifocal Lens Factory
OEM/ODM 1.56 Semi-Finished Flat Top Bifocal Lens Factory