CONVOX pitches sourcing guide for MR-8, 1.67 and 1.74 high-index lenses

CONVOX has issued a B2B guide for optical buyers comparing MR-8, 1.67 and 1.74 lenses, stressing that material choice should depend on prescription, frame type, coatings and manufacturing consistency. The company also highlights its coating, RX and production capacity as buyers weigh thinner lenses against clarity, durability and supply stability.

Why it matters: - Optical distributors, laboratories and retail chains need more than the highest refractive index when sourcing lenses. - Material clarity, Abbe value, thickness, frame compatibility, coating performance and supply consistency all affect the finished lens. - A wrong material choice can reduce comfort, cosmetic appeal or processing reliability.

What happened: - CONVOX published a sourcing guide for high-index optical lenses covering 1.60 MR-8, 1.67 and 1.74. - The guide is aimed at B2B buyers, including optical distributors, laboratories and retail chains. - CONVOX says its resin lens lineup includes stock, RX and functional options across standard and high-index categories. - The company also lists Korean NVC vacuum coating equipment, automated production lines, RX capability and stock management in its manufacturing system.

The details: - 1.60 MR-8 is presented as a balanced option when optical clarity, tensile strength and frame-processing reliability matter most. - CONVOX lists the 1.60 MR-8 line with an Abbe value of about 40. - The guide says that Abbe value is higher than the values shown for 1.67 and 1.74 in the same catalogue. - MR-8 is commonly used for rimless and semi-rimless frames because of its tensile strength and impact resistance. - The guide says those traits can help reduce cracking risk during drilling, grooving and edging when processing is done correctly. - For MR-8 sourcing, buyers should verify the monomer specification, Abbe data, coating configuration, drilling and grooving performance, and whether stock and RX options are available in the same material family. - 1.67 is positioned as a practical high-index choice for moderate-to-high prescriptions. - The guide says 1.67 can deliver meaningful thickness reduction versus 1.50/1.49 material, with the result depending on prescription, diameter, base curve, frame size and lens design. - In CONVOX’s -6.00D / 70 mm example, edge thickness changes from 10.3 mm for 1.49 to 7.2 mm for 1.67. - CONVOX describes that result as about 30% thinner in that specific example. - The guide says that comparison is not a universal guarantee for every prescription. - 1.67 can be paired with blue block, anti-reflective coatings and RX processing. - Procurement teams should check batch-to-batch color consistency, coating adhesion, optical power accuracy and availability across needed stock and prescription ranges. - 1.74 is described as an ultra-high-index option for stronger prescriptions where cosmetic thinness is the main goal. - The guide says 1.74 should not be treated as automatically better than lower-index materials. - In the same CONVOX comparison example, edge thickness is listed at 6.8 mm for 1.74 versus 10.3 mm for 1.49. - CONVOX describes that result as about 34% thinner in the -6.00D / 70 mm example. - Actual finished-lens thickness still depends on prescription, frame dimensions, lens diameter, base curve, center thickness requirements and design optimization. - Because high-index materials reflect more surface light than lower-index resin, the guide says anti-reflective coating is especially important for 1.74. - Buyers are told to evaluate 1.74 as a material-plus-coating system rather than on index alone. - The guide says CONVOX’s factory uses 16 Korean NVC vacuum coating machines, two automated production lines, modern stock management and RX equipment for prescription production. - CONVOX also lists resin lens capacity of up to 50,000 pairs per day across multiple product categories.

Between the lines: - The guide is as much a sourcing checklist as a product comparison. - CONVOX is signaling that manufacturing consistency and coating capability matter as much as index when buyers place repeat orders. - The repeated focus on stock and RX options suggests the company wants to compete on supply flexibility, not only on lens material.

What's next: - Buyers are expected to request product matrices, power ranges, material and Abbe data, coating options and representative thickness calculations before placing bulk orders. - CONVOX asks buyers to use samples or trial orders to compare optical quality, coating appearance and edging performance before scaling volume. - The company invites buyers seeking 1.60 MR-8, 1.67 and 1.74 stock or RX sourcing to request current power ranges, coating options, samples and OEM packaging information. - More information is available at the company’s announcement or via sales@convox.cn.

The bottom line: - CONVOX’s message is clear: high-index lens sourcing should be decided by application, not by refractive index alone.