High-Purity Ionic Color Filter Glass for Deep UV Applications
The ZWB1 (UG11) is a specialized Deep Ultraviolet (UVC) Pass Filter designed for high-precision optical systems. As a narrowband filter with a peak transmission at 254nm, it offers the industry’s most efficient transmission for short-wave ultraviolet light while providing a total block of visible and infrared interference. It is the gold standard for UVC Sterilization Monitoring and Laboratory Fluorescence Spectroscopy.
Key Technical Specifications
| Parameter | Technical Data |
| Material Type | ZWB1 (Ionic Color Filter Glass) |
| Equivalent Grades | Schott UG11, Hoya U-340, Kopp 9863 |
| Peak Wavelength | 254nm / 310nm |
| Transmission Range | 230nm – 340nm (Deep UV) |
| Blocking Range | 380nm – 750nm (Complete Visible Suppression) |
| Available Thickness | 1.0mm, 2.0mm, 3.0mm (Precision Polished) |
| Surface Quality | 40/20 Scratch & Dig (Scientific Grade) |
Why Choose ZWB1/UG11 for Deep UV Applications?
1. Optimized for 254nm UVC Sensing
ZWB1 is specifically engineered for systems utilizing 254nm Mercury Lamps or UVC LEDs. It allows the critical germicidal wavelengths to pass through with minimal attenuation, making it indispensable for air and water purification sensors.
2. Direct Schott UG11 & Hoya U-340 Replacement
Our ZWB1 glass matches the spectral curves of Schott UG11 and Hoya U-340 precisely. For B2B partners, this provides a reliable, high-performance alternative for analytical instruments and medical diagnostic devices.
3. High Contrast Scientific Imaging
By completely absorbing visible light, ZWB1 enables high-contrast imaging in Forensic Investigation and Mineralogy, where detecting subtle fluorescence under short-wave UV is required.
Core Applications
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UVC Intensity Monitoring: Verifying the output of sterilization lamps in medical and food processing.
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Biomedical Instrumentation: Fluorescence-based DNA analysis and protein detection.
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Environmental Analysis: Ozone (O3) monitoring and gas phase spectroscopy.
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Precision Forensics: Identifying specific biological traces only visible under deep UV.
Frequently Asked Questions (FAQ)
Q: How does ZWB1 (UG11) compare to ZWB2 (UG1) and ZWB3 (UG5)?
A: ZWB1 (UG11) is the specialist for 254nm Deep UV. While ZWB2 (UG1) is optimized for 365nm and ZWB3 (UG5) is for broad-spectrum photography, ZWB1 provides the cleanest signal for short-wave UVC applications.
Q: Does ZWB1 solarize over time?
A: All UV glass can experience solarization under intense UVC exposure. However, our ZWB1 is manufactured using high-purity raw materials to minimize this effect and ensure long-term stability in sensor windows.
Q: What custom shapes are available?
A: YOUJIA OPTICAL can process ZWB1 into precision micro-lenses, custom square windows, and CNC-drilled components for integrated sensor housings.
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