Independent eyewear sourcing
transition gradient lenses
Use this Spec Check page to resolve open choices on transition gradient lenses design, photochromic behaviour and standard markings before you accept an alternative factory offer. Tell us the model form, quantity and destination. We ask factories for quotes on that scope.
Request Factory QuotesThe gradient lenses brief factories should price against
- Identify the quoted transition gradient lenses model, not only the factory name.
- Record the unit: pair, piece or set, and whether photochromic behaviour is included.
- Keep budget currency and unit-or-order basis optional on the inquiry.
Before accepting an alternative, verify whether the substitute changes lens design, index, tint density, polarization or hard-coat stacks. A cheaper reply that drops photochromic behaviour is not the same transition gradient lenses line. Ask for the documents that cover the quoted item rather than a generic factory brochure. Markings such as Z87 apply only when the named eyewear model sheet states them; they do not transfer to a lens SKU automatically.
Selection checks that change the comparable quote
| Check | Buyer confirms | Why it matters |
|---|---|---|
| Lens design | Gradient, photochromic notes | Silent swaps break optical comparisons |
| Material / index | Values on the sample | Index changes thickness and cost |
| Coatings | Included or excluded | Hard coat and AR silence break landed cost |
| Frame marking | Only if the named eyewear sheet states it | Lens quotes stay separate from safety eyewear lines |
These checks are procurement verification steps, not factory test certificates owned by this desk. Sample approval remains the buyer's decision before bulk quantity releases. Check frame size, lens specification and standard markings on the accompanying eyewear model when the brief includes finished spectacles. A polycarbonate blank versus a high-index design is a different quote line even when both carry a gradient tint; CR-39 or other materials must be named the same way on every reply. Anti-reflective, hard-coat, mirror and polarization change the quote and are not included unless the supplier writes them in.
Send the gradient lenses form you will actually reorder
FREE sourcing support and up to 3% apply only to qualified business buyers after the product, quantity, destination and request are checked.
Request Factory Quotes