AR Coated Fused Silica UV Protective Window | Custom UV Transmittance Quartz Optical Viewport

 

Our AR Coated Fused Silica UV Protective Optical Window is fabricated from high-purity UV-grade fused silica raw material, engineered specifically for deep UV and near-ultraviolet testing environments. Double-sided multi-layer anti-reflection coating eliminates light reflection loss, delivering stable high transmittance across 190nm to 400nm UV spectrum.

 

This UV protective viewport acts as a barrier shield for internal optical sensors, CCD cameras, detection lenses and precision photonic modules. It blocks dust, moisture, chemical vapor and strong UV radiation erosion, extending the service life of core lab and industrial UV testing equipment. All optical surfaces are processed with ultra-precision polishing to meet strict industrial photonics standards for North American lab and machinery manufacturers.

 

 

1. Outstanding Deep UV Transmittance

Low-fluorescence fused silica substrate maintains consistent high light transmission under long-term continuous UV exposure, no yellowing or performance attenuation after thousands of working hours.

2. Custom Double-Sided AR Anti-Reflection Coating

Tailored AR coating formula for target UV wavebands, reducing surface reflectivity to below 0.5%. Minimize signal distortion and improve detection accuracy for spectroscopy inspection systems.

3. Stable Physical & Chemical Performance

Low thermal expansion coefficient, excellent thermal shock resistance, acid and alkali corrosion resistance. Suitable for variable-temperature laboratory testing and continuous industrial online UV monitoring.

4. Fully Customizable Geometry & Dimensions

Support round, square, rectangular and special CNC machined outlines. Thickness, outer diameter, edge chamfer and surface flatness can be customized according to customer equipment drawing requirements.

5. Strict Optical Quality Control

Every finished UV window undergoes UV transmittance testing, surface scratch inspection and coating uniformity detection before delivery, consistent quality for OEM batch orders and small prototype samples.

 

- Custom shape: Round, square, rectangular, irregular CNC machined blanks

- Custom size: Custom diameter, thickness, edge chamfer and mounting flange size

- Custom AR coating: Target wavelength AR coating for UVA, UVB, UVC deep ultraviolet bands

- Surface finish: Precision polishing, matte edge, anti-scratch enhanced processing

- Batch flexibility: Small lab prototype orders and mass industrial OEM production supported

 

 

Laboratory UV spectroscopy analyzers, UV fluorescence testing instruments, semiconductor wafer UV defect inspection equipment, online water quality UV monitoring systems, industrial UV curing detection machines, photonics research laboratory optical test benches, environmental UV detection devices.

 

 

1. What UV wavelength range can this AR coated fused silica window cover?

Our standard AR coating covers 190nm to 400nm deep UV to near UV. Custom wavelength coating formulas are available upon request to match your testing light source.

2. Can the fused silica window work under continuous long-hour UV irradiation?

Yes. UV-grade fused silica features low fluorescence and anti-yellowing performance, stable performance under 24/7 long-term UV exposure without obvious transmittance drop.

3. Is OEM custom size and coating available for small lab equipment orders?

We accept small batch prototype customization for laboratory R&D, with flexible MOQ and dedicated optical processing for unique equipment drawing requirements.

4. How does the AR coating improve UV testing data accuracy?

Double-sided anti-reflection coating reduces light reflection on two optical surfaces, cutting signal loss and stray light interference to deliver more reliable UV detection reading results.

5. What’s the difference between fused silica and BK7 glass for UV testing?

BK7 glass blocks deep UV light below 300nm, while fused silica maintains high transmittance in deep UV bands, making it the only suitable optical material for UV inspection and spectroscopy instruments.

 

 

- View raw material introduction: UV Grade Fused Silica Optical Glass

- Matching industry solution: UV Testing Instruments Optical System

- Real project case: