Material: N-BK7 (BK7) Crown Glass Transmittance: ≥92% @ Visible Band Surface Finish: Optical Polished Coating: Optional AR coating Custom BK7 hemispherical and partial dome designs against engineering drawings. Flat N-BK7 optical windows with controlled thickness and edge finish. Surface quality and optical tolerances defined by your drawing requirements. Optional anti-reflective coating optimized for the visible spectrum. Chamfer, stepped edge and mounting interface support for camera housings.
N-BK7 is a standard crown optical glass with excellent homogeneity, high visible transmission and stable mechanical performance. It is widely used for PTZ surveillance domes, sensor covers and low-depth underwater imaging components.
Application Note: N-BK7 is recommended for moderate-pressure environments. For deep-sea high-pressure applications, please refer to our sapphire optical dome solutions. For full material properties, see our Material Hub.
Please provide drawing, dimension, optical specs, coating requirement and working environment details. Our optical engineering team will evaluate feasibility, confirm MOQ and deliver a formal quotation.
✅ Get Your Custom Engineering Review & Quote in 24 HoursN-BK7 Optical Dome & Window
Key Specs
N-BK7 Optical Dome Capabilities
Hemispherical Domes
Flat Windows
Precision Polishing
AR Coating
Mounting Features
N-BK7 Glass Material Overview
Typical Applications
Related Optical Dome Solutions
Send Your Drawings for Engineering Review & Quotation
- What is the minimum order quantity for custom precision optical glass components?
Felix Glass supports paid prototypes, small trial batches and volume production. Minimum order quantities depend on the material, dimensions, tolerances and coating requirements. Send us your drawings and required quantity so we can confirm the MOQ, price and lead time.
- Can I order samples for testing before bulk production?
Yes. Felix Glass offers paid custom samples for evaluation before bulk production. Sample costs and lead times are assessed based on material, dimensions, tolerances, coating requirements and quantity. Please send us your drawings or specifications so we can provide a sample quotation and estimated production lead time.
- 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.
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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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