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What is the tolerance and quality standard for your optical glass domes?

Update Time:2026/5/2

At Felix Glass, quality and precision are the cornerstones of every optical glass dome we produce. We adhere to strict manufacturing and inspection standards to ensure your domes meet or exceed your specifications.

**Dimensional Tolerances:**

We achieve extremely tight tolerances on all critical parameters:

- **Diameter Tolerance:** ±0.01 mm or better

- **Thickness Tolerance:** ±0.005 mm

- **Radius of Curvature Tolerance:** ±0.1% or better, depending on complexity

- **Centration Error:** Less than 1 arc minute, ensuring perfect alignment

- **Surface Irregularity:** λ/10 or better at 632.8 nm, for minimal wavefront distortion

These tight tolerances ensure that each dome is optically matched to your system, eliminating image aberration and ensuring consistent performance.

**Surface Quality & Finish:**

The surface quality of our domes is measured using the MIL-PRF-13830B scratch-dig standard. We routinely produce domes with:

- Surface quality up to **10/5** (scratch/dig) for high-precision applications

- Precision-polished surfaces with minimal roughness (Ra < 0.5 nm)

- Edge finishing options including fine grinding, chamfering, and polishing to eliminate stress points

This level of finish is critical for applications requiring high light transmission and low scatter.

**Quality Assurance & Certifications:**

All our manufacturing processes are conducted under an ISO 9001:2015 certified quality management system. Every optical glass dome undergoes a multi-point inspection before shipment, including:

1. Visual and interferometric inspection for surface defects

2. Dimensional verification using coordinate measuring machines (CMM)

3. Optical testing for transmission, reflection, and wavefront error

4. Coating performance verification

We provide full inspection reports and certification upon request, giving you complete confidence in the quality and reliability of our products.

At Felix Glass, we believe that true quality is built into every step of the process, from raw material selection to final testing.

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Learn more from our FAQ

What is your MOQ for custom optical glass and display glass parts?: Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.

Can I get free glass samples for testing before bulk order?: Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?: What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?: All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.

Do you offer one-stop custom optical glass processing services?: Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.

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What is the tolerance and quality standard for your optical glass domes?

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.