Blue Cut Lenses · CO-BC
A standard blue-filter family covering several index tiers and optical designs. Define spectral requirements, transmitted appearance and coating separately so quotations describe the same product.
Sample-first cooperation · Typical first reply within 1 business day
Buyer fit
For wholesale ranges that require a blue-filter option alongside conventional clear lenses. Approve the lens base appearance and the exact transmission specification with samples rather than selecting from reflection color alone.
Start with representative samples, approve the agreed specification, then use it as the reference for trial and repeat orders.
Technical parameters
Final material, power matrix, coating, tolerances, tests, and availability are confirmed before quotation.
Updated
| Parameter | Configuration |
|---|---|
| Product family | Normal blue cut optical lenses |
| Index choices | 1.49 / 1.56 / 1.60 / 1.67 / 1.74 |
| Design choices | Single vision / bifocal / progressive |
| Function options | Clear, photochromic and specialist coating inquiries |
| Coating choices | UC / HC / HMC / SHMC |
| Base appearance | Approved against a retained sample |
| Spectral data | Product-specific wavelength and transmission criteria required |
| Power and diameter | Confirmed for the selected material and design |
| Wavelength band | Evidence to request | Order control |
|---|---|---|
| 385–415 nm | Transmission data for the exact sample | Agree the acceptance criterion |
| 415–445 nm | Same method and sample identity | Compare like-for-like results |
| 445–475 nm | Transmission data and measurement conditions | Keep the curve with approval |
| 475–505 nm | Visible transmission evidence | Review appearance independently |
No competitor test percentages are represented as COLA OPTIC results. Blue-filter properties do not establish a medical benefit.
Lens design
A blue-filter lens changes transmission over selected wavelengths. The diagram is a qualitative explanation of that principle. Numerical claims require a test report identifying the material, coating and sample conditions.
Application & selection
Compare actual sample pairs under consistent lighting, looking through the lens as well as at its reflections. Record acceptable base color and coating appearance before approving the repeat-order specification.
Sample and quality route
Reviewed against the confirmed product and packing specification.
Reviewed against the confirmed product and packing specification.
Reviewed against the confirmed product and packing specification.
Reviewed against the confirmed product and packing specification.
Reviewed against the confirmed product and packing specification.
Procurement FAQ
No. State the wavelength coverage and transmission criteria explicitly.
No. Reflection appearance and transmission measurements answer different questions.
Request a combined program with its own material, activation and spectral specifications; availability is confirmed for the selected design.
Start with a useful inquiry
We will help narrow the specification, sample scope, packaging route, and commercial terms.
Submit product requirementssales@colaoptic.com · Typical first reply within 1 business dayRelated programs
