N-BK 7 Windows
N-BK7 optical windows are prized for their exceptional clarity and consistency, which makes them ideal for a wide range of visible to near-infrared applications where precision is critical.
Benefits of N-BK7 Optical Windows
Wide Spectral Range
Transparent from 350 nm to over 2000 nm, it is suitable for diverse optical uses.
High Durability
Resistant to scratches and environmental impacts, ensuring longevity.
Optical Precision
High homogeneity and low inclusion levels enhance optical performance.
Cost-Effective
It offers a balance of performance and affordability, making it ideal for bulk and specialized uses.
N-BK 7 Window Examples
What are N-BK7 Optical Windows?
N-BK7 windows are made from high-quality borosilicate crown glass, renowned for its excellent optical properties and durability. These windows are transparent across a broad range of wavelengths, from about 350 nm to beyond 2000 nm, making them highly effective for applications in visible and near-infrared spectra. N-BK7 is particularly noted for its high homogeneity, low bubble, and inclusion content, and straightforward manufacturability, which make it a preferred material for precision optical components like lenses and windows used in a variety of scientific, photographic, and industrial contexts.
| Diameter: | From 1 mm (.039") to 228.6 mm (9") |
|---|---|
| Thickness: | Nearly any thickness; varies by diameter |
| Surface Quality: | Down to 40/20 Scratch/Dig |
| Transmission | 250nm - 2600nm |
| Quantities: | From singles to full production runs |
Frequently Asked Questions
What are N-BK7 optical windows used for?
N-BK7 optical windows are commonly used in applications that require high precision and clarity in the visible to near-infrared light spectra. These include imaging systems, optical instruments, and various scientific and industrial measurement devices.
What makes N-BK7 glass ideal for optical windows?
N-BK7 glass is favored for its optical clarity and uniformity, making it highly effective for applications requiring precise light transmission and minimal optical distortion. Its robust physical properties also ensure durability and resistance to environmental factors.
How does N-BK7 compare to other optical materials?
N-BK7 offers excellent light transmission in the 350-2000 nm range, superior scratch resistance, and good chemical stability compared to many other optical materials. While not as high-performing in UV or IR extremes as specialized glasses, it provides a cost-effective solution for many standard optical applications.
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