UV Fused Silica Long Pass Optical Filter
This long pass optical filter is manufactured from UV fused silica and designed to deliver high transmission above the cutoff wavelength while effectively blocking shorter wavelengths, making it ideal for precision optical and imaging systems.
Material :
UV Fused SilicaDimension Tolerance :
+0.0 / -0.1 mmThickness Tolerance :
2 mm ± 0.2 mmBlocking Level :
OD ≥ 2Wavefront Error :
λ/4 @ 633 nmCentral Wavelength Tolerance :
±1%Parallelism :
< 30 arc secondsSurface Quality :
40/20 – 60/40
Product Description
The UV fused silica long pass filter selectively transmits wavelengths longer than a specified cutoff while suppressing shorter wavelengths through multilayer interference coating technology. With excellent optical uniformity and stable spectral performance, this long pass filter is suitable for demanding optical environments.
Performance Advantages
High average transmission (Tavg > 90%) above the cutoff wavelength
Sharp cutoff edge for improved spectral separation
UV fused silica substrate ensures low absorption and thermal stability
Low wavefront distortion suitable for imaging and laser applications
Durable coating with consistent optical performance at normal incidence
Application Range
This long pass optical filter is widely used in fluorescence analysis, infrared imaging systems, laser equipment, biomedical diagnostics, and environmental monitoring instruments where reliable wavelength separation is required.
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diyiye.com
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