At READSUN, every optical frame is inspected from raw material sourcing to final delivery.
Our quality control system covers the entire process — design, prototyping, manufacturing, final inspection, and shipment — ensuring every product meets international standards.
Used to achieve complex color and pattern combinations.
Premium lightweight material.
A balance between cost and performance.
High-performance engineering materials
High-toughness, lightweight injection molding material.
Lighter and more flexible than acetate.
Every production stage is strictly monitored — injection molding, polishing, coating, and assembly.Dedicated quality inspectors ensure dimensional accuracy and tolerance compliance at each step.
Critical dimensions, surface finish, and functional tolerances are checked at multiple control points by trained quality inspectors to ensure every frame meets approved specifications before moving to the next stage.
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Verifies hinge durability, screw stability, and long-term performance.
Ensures temples and bridge resist breakage under stress.
Evaluates frame stability under uneven force.
Repeated bending and pressure tests on critical stress points.
