Lens manufacturer for eyewear brands and manufacturers
PC, nylon, Tritan and TAC substrates with tints, gradients, REVO mirror finishes, polarized, polarizing filters, anti-fog and prescription processing — quoted against your confirmed specification.
Turn your requirement into a lens specification sheet
Answer six short steps — substrate, lens type, dimensions, tint, coating and cutting. The builder writes a complete spec sheet you can copy, download or print, and send to us with one click.
- No sign-up, no price guessing
- Every parameter in one document
- Pre-fills from any product page
- Add several lenses to one sheet
- Substrate — PC / Nylon / Tritan / TAC
- Lens type — sunglass, sports, photochromic…
- Dimensions — diameter, thickness, base curve
- Tint & finish — solid, gradient, REVO, polarized
- Coatings — hard coat, AR, hydrophobic, anti-fog
- Quantity, shape and contact details
Xiamen Kexin Optical Technology Co., Ltd. is a lens manufacturer based in Haicang District, Xiamen, China. We supply sunglass lenses, sports lenses and photochromic lenses to eyewear brands, assembly plants and lens processors, and we take on coating work on customer-supplied lenses.
Our range covers four substrates — polycarbonate, nylon, Tritan copolyester and cellulose triacetate — combined with the tint, mirror, polarized, anti-fog and anti-reflective treatments a frame or a project requires.
Orders are made to a confirmed specification. We produce a sample for approval before bulk production, so the appearance, the frame fit and the optical behaviour are agreed in advance.
ProductsProduct Center
Five lens families, twenty-one products. Every product belongs to a family, so nothing is hidden.
FeaturedPopular lens products
Why KexinWhat we actually control in-house
Every claim below maps to a product page or a service you can specify on the spec sheet.
Polycarbonate, nylon, Tritan copolyester and cellulose triacetate — chosen against impact, weight, optical clarity and chemical resistance.
Solid tints, gradients, REVO mirror coatings, polarized constructions and base colours across the sunglass and sports ranges.
Anti-fog (ambient-cured and thermally cured), anti-reflective by vacuum deposition, hydrophobic top layers and hard coats.
Semi-finished blanks and finished lenses, contour cutting to a drawing or CAD file, and custom prescription powers for myopia and astigmatism.
QualitySpecification, sampling, then production
How an order actually runs — and what we will document for your file.
We confirm the producible specification from your spec sheet and tell you where a requested combination cannot be made.
A sample is produced and sent for approval of appearance, frame fit and optical behaviour before bulk production.
Substrate, tint, coating and cut are checked against the approved sample as the batch runs.
Specification record and inspection results are issued with the shipment. Test reports are provided on request.
Certificate copies, report scopes and the standards a lens is tested against are issued with a quotation or on request. Add the standards your project must meet to the spec sheet and we will confirm what applies to the selected product.
Add a requirement to the spec sheetApplicationsStart from where the lens is worn
Pick the environment first, then the product that matches it.
Frequently asked
Materials, ordering and what to send with an inquiry.
What do I actually need to send for a quotation?
Which substrates do you supply?
What is the difference between the two photochromic families?
Can you supply semi-finished blanks rather than finished lenses?
Is prescription processing available?
How does pricing work?
Send one document, get one quotation
Build the spec sheet for each lens you need, then submit it. We confirm the producible specification, the unit price and the lead time.
All Products
ApplicationsWhich lens family fits which use
Choose the wearing environment, then open the family that matches it.
| Application | What to specify | Lens family |
|---|
Not sure which product suits the frame?
Send the frame type, the environment and any correction requirement — we will confirm the producible specification before you commit to anything.
Lens type, substrate, dimensions, coating stack and order quantity — the Spec Sheet Builder collects all of it into one document.
For a contoured or custom shape, send a drawing, a CAD file or a physical sample.
We confirm the producible specification, the unit price and the lead time.
A sample for approval of appearance and fit, then bulk production against the approved sample.
Where a requested combination of thickness, curvature and coating cannot be produced, we say so before quoting rather than producing a lens that does not meet the requirement. Certificate copies, report scopes and the standards a lens is tested against are issued with the quotation or on request.
RelatedOther lenses in this family
Add this lens to a spec sheet
Combine it with other lenses and coatings, then send the whole document for a quotation.
- Substrate
- Lens type
- Dimensions
- Tint & finish
- Coatings
- Quantity & contact
Step 1 · Choose the substrate
The base material decides impact resistance, weight and how the lens takes a tint or a coating.
Step 2 · Choose the lens type
Pick the product closest to what you need. If nothing matches, choose “Not listed” and describe it in step 6.
Step 3 · Dimensions and lens form
Leave a field blank if it is not yet decided — we will propose a value with the quotation.
Step 4 · Tint and finish
Select everything that applies. Colours and reflectance are confirmed against a sample.
Step 5 · Coatings and processing
Coatings change the durability and the optical behaviour of the lens — select the ones your product requires.
Step 6 · Quantity and contact details
Quantity and the application are the two fields that let us quote accurately.
Every field that affects cost — substrate, dimensions, tint, coating stack and quantity — is captured in one place.
Use “+ Spec sheet” on any product to add it to the list in the sidebar, then generate one document covering all of them.
Copy it into an email, download the text file, print it as a PDF, or submit it directly.
Company ProfileWhat we do
Xiamen Kexin Optical Technology Co., Ltd. (KEXIN OPTICS) is a lens manufacturer based in Haicang District, Xiamen, Fujian, China. We develop and supply lens products for eyewear brands, assembly plants and lens processors, and we also take on coating work on lenses supplied by our customers.
Our range covers four substrates — polycarbonate (PC), nylon, Tritan copolyester and cellulose triacetate (TAC) — combined with the tint, mirror, polarized, photochromic, anti-fog and anti-reflective treatments a frame or a project requires. Products are supplied as finished lenses or semi-finished blanks.
Orders are made to a confirmed specification. We review the requirement, confirm what is producible, produce a sample for approval of appearance and frame fit, and then run the bulk order against that approved sample. Where a requested combination of thickness, curvature and coating cannot be produced, we say so before quoting.
Capability at a glance
| Substrates | PC, nylon, Tritan copolyester, TAC (cellulose triacetate) |
|---|---|
| Optical functions | Polarized, UV400, blue-light filtering, high-contrast tints, photochromic (UV-responsive and visible-light-responsive) |
| Appearance | Solid tints, gradient tints, REVO mirror finishes, base colours |
| Surface treatment | Hard coat, AR (vacuum deposition), hydrophobic top layer, water & oil repellent, anti-fog (ambient-cured and thermally cured) |
| Form supplied | Finished lenses and semi-finished blanks; contour cutting to drawing, CAD file or physical sample |
| Correction | Custom prescription powers for myopia and astigmatism; progressive options on request |
| Business model | OEM / ODM, specification-led, sample before bulk production |
| Product range | 21 lens products across five families |
FacilitiesWorkshop and equipment
Cleaning, coating, measurement and bench equipment used across the lens range.
Ultrasonic cleaning equipment with rack handling for substrate preparation before tinting and coating.
Vacuum deposition for AR stacks, plus the coating and curing stages used for hard coat, hydrophobic and anti-fog layers.
Transmittance measurement and bench-top inspection equipment for checking optical behaviour and surface condition.
Equipment photographs, plant details and capacity figures are available on request during supplier qualification.
QualityHow an order is controlled
Four checkpoints between your requirement and your shipment.
We read the spec sheet, confirm the producible specification, and flag where a requested combination of thickness, curvature and coating cannot be made.
A sample is produced and sent for approval of appearance, frame fit and optical behaviour. Bulk production follows only after that approval.
Substrate, tint, coating and cut are checked against the approved sample through the batch.
The specification record and inspection results are issued with the shipment. Test reports are provided on request.
ComplianceCertifications and test documentation
Tell us which standards your market requires and we will confirm what applies to the selected product.
- Certificate copies and the scope each certificate covers
- The standards a lens is tested against, stated in writing
- Test reports for the production batch on request
- Lens parameters recorded against the approved sample
So that nothing is overstated, the exact certificate numbers, report scopes and the standards a specific product meets are confirmed in writing with your quotation rather than being listed here as generic claims.
- EN ISO 12312-1 (sunglasses and related eyewear)
- ANSI Z80.3 (non-prescription sunglass and fashion eyewear)
- UV400 protection
- Prescription lens parameters
Requirements are confirmed per product and per order.
Start with the lens, not the paperwork
Describe the lens you need and we will confirm the producible specification, the unit price and the lead time.
Request a quotation
Fields marked * are required. For a detailed requirement, use the Spec Sheet Builder instead — it captures every parameter that affects cost.
- Company
- Xiamen Kexin Optical Technology Co., Ltd.
- Address
- Room 602, No. 69-2 Zaihou North Road,
Haicang District, Xiamen,
Fujian, China - [email protected]
- Hours
- Mon–Sat, 08:30–18:00 (GMT+8)
- Reply
- Within 24 hours on business days
Xiamen, Haicang District
The builder captures substrate, dimensions, tint, coating stack and quantity in one document — everything needed for an accurate quotation.
Open the Spec Sheet Builder