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Semi-Finished Lenses are the cornerstone of customized prescription (Rx) eyewear in the optical industry. For eyewear professionals, a deep understanding of the structure, functio...
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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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Introduction to Core Concepts: The Purpose of Polarized and Photochromic Lenses Advanced lens technologies are designed to enhance visual comfort and protect the eyes from harmful ...
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Introducing Normal Lenses and Defocus Lenses In the fields of optics and image capture, the lens is a core component responsible for guiding and shaping light to form an image on a...
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Unveiling the Technology of Bifocal Lenses Introduction to Bifocal Lenses A bifocal lens is a powerful and time-tested solution in vision correction. Simply put, it is a corrective...
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Understanding Photochromic Lenses vs. Transition Lenses In the field of modern eye care, photochromic lenses are undoubtedly a prime example of providing convenience and eye protec...
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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