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What is lens surfacing?
Lens surfacing is a process used in the production of eyeglass lenses. This process involves shaping the lens to meet the specific prescription requirements of an individual. It’s a critical step in ensuring that the lenses provide the correct vision correction. Here’s a brief overview of the process:
Blank Selection: It starts with a lens blank, which is a piece of material (like plastic or glass) that has not yet been shaped. The blank is chosen based on the prescription and the type of lens material required.
Blocking: The lens blank is mounted or “blocked” in a machine so it can be accurately worked on. This involves attaching the blank to a block using a special adhesive or chuck. The block provides stability and precision during the surfacing process.
Generating: The lens is then cut to a rough shape using a diamond-tipped tool or a laser in a process known as “generating.” This step removes the bulk of the material to create the general curvature needed for the prescription.
Fining/Polishing: After generating, the lens is smoothed and polished. This involves finer grinding and/or polishing to remove any marks or imperfections left by the generating process, resulting in a clear and smooth surface.
Quality Check: The lens is inspected for quality, ensuring that it meets the required prescription and has no defects.
various coatings (like anti-reflective, scratch-resistant, or UV-protection coatings) can be applied to the lens
Lens surfacing is a blend of skilled craftsmanship and advanced technology that takes place before the process of finishing. The precision and care taken in this process are crucial for producing lenses that provide clear, accurate vision correction.
369 Lens surfacing factory was established as a surfacing-only lab and has since added coating facilities, freeform generation capability, and lens finishing services.
traditional lens-making techniques.
Freeform Surfacing
Process: Freeform surfacing uses advanced computer-aided design and manufacturing (CAD/CAM) technologies. The process involves digitally mapping the lens surface with high precision and then using diamond-tipped cutting tools to shape the lens.
Customization: This method allows for a high degree of customization. Each lens can be individually tailored to the wearer’s specific prescription, including unique considerations like lens-to-eye distance, frame type, and viewing angles.
Precision: Freeform surfacing offers superior precision, especially beneficial for complex prescriptions and progressive lenses. It can accurately shape the lens for optimal vision correction across the entire lens surface.
Technology: Freeform surfacing utilizes more sophisticated technology, allowing for more complex lens designs and features, such as customized progressive lenses and specialized occupational lenses.
369 Lens Surfacing Factory is a sister company to the eye clinics in Ajuwon, Akute, Alagbole, Obawole, Iju, Ishaga, Kola, Agbado, Lambe, Ojodu Berger, Giwa Okearo, Alagbado, Oshere, Matogun, Command, Sango, Iju-Ajuwon:
Eyeupdate Clinic & Optical Supplies,
01, Ajuwon junction, Ajuwon bus stop, Akute-Ajuwon Road,
Ogun State & Lagos State.
Tel: 08068084591, 07038125887