Kingway outlines end-to-end prescription lens processing workflow

Zhenjiang Kingway Optical Co., Ltd. says its custom prescription lens process runs from semi-finished blanks through grinding, polishing, coating, inspection and optional frame assembly. The company is positioning the workflow for distributors, labs and wholesale buyers that need tightly coordinated Rx production.

Why it matters: - Kingway is pitching a single production route for prescription lenses that links prescription intake, optical manufacturing and fulfillment. - The workflow is aimed at wholesale buyers, optical labs and distributors that need accurate custom lenses with fewer handoffs. - The company says the approach is designed to reduce risk from fragmented vendor management.

What happened: - Zhenjiang Kingway Optical Co., Ltd., established in 2011, described its prescription lens processing service as an end-to-end custom manufacturing solution. - The process starts with semi-finished blanks and moves through mechanical surfacing, ultrasonic cleaning, optical finishing, laser marking, quality inspection and optional frame assembly. - Kingway said the process can be used for customized Rx lenses, progressive corridor options, photochromic lenses, bifocals and single-vision lenses. - The company directed buyers to send completed Rx requirements and technical specifications through its website for wholesale inquiries. - Kingway also listed a LinkedIn company page: Kingway on LinkedIn.

The details: - The required order inputs include the medical prescription, pupillary distance, frame parameters, fitting measurements, lens design choice, coating requirements and final assembly instructions. - Kingway said custom lenses do not start from finished stock lenses. - The process generally begins with precision-cast semi-finished blanks matched to the required material index and optical geometry. - Prescription values, frame parameters, wearer habits and usage scenarios are used when the back optical surface is generated. - Computer-controlled precision cutting and mechanical grinding shape the blank into the required optical surface. - The grinding stage sets the lens geometry, center thickness and refractive power. - FreeForm technology can be used for complex orders that need a customized back surface. - After grinding, the lens moves through polishing, automated cleaning and atmospheric drying. - Kingway said these preparation steps matter because coating quality depends on a clean, finished substrate. - Tinting is optional and is used for prescription sunglasses or specialized color requirements. - Hard coating is applied and thermally cured to increase durability and scratch resistance. - Anti-reflective coating follows in vacuum chambers. - Additional functions such as hydrophobic or blue-light-blocking layers are applied only when specified. - Micro lens markings are added after coating for product identification and progressive-lens alignment. - Final quality inspection checks cosmetic appearance, optical power and center thickness. - Approved lenses can be shipped directly or assembled into customer-supplied frames before shipment.

Between the lines: - Kingway is framing prescription lens manufacturing as a controlled chain of linked steps, not a set of separate services. - That pitch matters for B2B buyers because any missing Rx or frame data can affect surfacing, coating and final assembly. - The emphasis on modular coating and assembly suggests the company wants to serve both lens-only and frame-inclusive procurement models.

What's next: - Buyers placing RFQs will need to specify Rx data, frame dimensions, coating preferences, quantity and fulfillment route up front. - Kingway says that documentation allows the company to coordinate grinding, polishing, coating, inspection and optional assembly in one production sequence. - Wholesale customers can use the company’s website to start custom-processing discussions and set delivery schedules.

The bottom line: - Kingway is selling prescription lens processing as a tightly managed, customizable B2B workflow built around accuracy, coating control and flexible fulfillment.