Dongguan Felix Glass Co., Ltd. E-mail: james@felixglass.com - Tel: +86 185 6503 2888
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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.
James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory.James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory. 2
Learn more from our FAQ
What is the minimum order quantity for custom precision optical glass components?

FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.

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?

A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?

All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.

Do you offer one-stop custom optical glass processing services?

Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.

CONTACT US NOW FOR A QUOTE
We will respond promptly within 1 to 5 hours and provide an optimal, formal quotation within 1 to 2 days. Partnering with us is the smartest choice—start a mutually beneficial partnership today!
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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.

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