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220nm Narrowband Filter Accurately Locks Deep Ultraviolet Optical Components
Product Spotlights
By using multi-layer dielectric film interference technology (such as MgF ₂, Al ₂ O3, HfO ₂ and other deep ultraviolet transparent materials), specific wavelength constructive interference can be achieved through precise control of film thickness and refractive index. The substrate is mostly fused
US$ 8
10 - 49 Units
US$ 6
50 - 99 Units
US$ 5
≥100 Units
Key Specifications
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Certification:
ROHS, ISO
Shape:
Round
Usage:
Lighting, Medical, Optical, Photography, Other
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
20 days
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Certification
ROHS, ISO
Shape
Round
Usage
Lighting, Medical, Optical, Photography, Other
Thickness Range
1mm-2mm
Angle of incidence
0°
Customized
Non-Customized
Origin
China
The 220nm narrowband filter is a high-precision optical component designed specifically for the deep ultraviolet (UVC) band. Its core function is to accurately extract narrowband spectra near 220nm from a broadband light source.
Core Features
Ultra narrow bandwidth: The full width at half maximum (FWHM) is usually controlled between 2-10nm to ensure spectral purity
High transmittance: The peak transmittance can reach 20% -60%, balancing efficiency and selectivity
Deep cut-off depth: The out of band cut-off depth reaches OD4-OD6 (0.01% -0.0001%), effectively suppressing stray light
Shortwave positioning: 220nm is located in the far ultraviolet/vacuum ultraviolet transition region, with high photon energy (~5.6eV)
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Main Markets
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, Domestic Market
Location
Shenzhen, Guangdong, China
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