SP365 Shortpass Filter | UV Transmission Optimized (<365nm) | Hard Coated Optical Filter

Unlock Precision UV Control: SP365 Shortpass Optical Filter

Engineered for Maximum Transmission Below 365nm with Deep Visible/IR Blocking

In applications demanding strict ultraviolet (UV) spectrum control, unwanted visible and infrared light compromises accuracy. Manufactures delivers critical optical precision with the SP365 Shortpass Filter – designed to transmit UV radiation below 365nm while aggressively blocking longer wavelengths for superior signal integrity.

Key Optical Performance

• Sharp Cutoff at 365nm: High transmission (>90%) of UV light below 365nm (UVA/UVB range).

• Deep Visible/IR Blocking: OD4+ rejection (400–1200nm) eliminates >99.99% of stray light.

• Sunlight Spectrum Filtering: Isolate UV signals in daylight environments.

• Low Autofluorescence Substrate: Minimizes background noise in sensitive detection.

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Critical Applications

• UV Fluorescence Microscopy: Isolate excitation light in histopathology/cell imaging.

• Forensic Analysis: Enhance trace evidence detection (bodily fluids, fibers) under UV.

• Industrial UV Curing: Filter IR heat from mercury/xenon lamps to protect substrates.

• Ozone Monitoring: Detect 254nm/365nm absorption lines in environmental sensors.

• Lithography Alignment: Control UV light paths in semiconductor manufacturing.

• Insect Traps: Optimize UVA output for maximum pest attraction efficiency.

Engineered for Reliability

• UV-Grade Fused Silica: High transmission down to 250nm, minimal solarization.

• Hard Dielectric Coatings: Scratch-resistant & chemical-proof (MIL-C-675C compliant).

• Thermal Stability: Withstands -30°C to +150°C without performance drift.

• Laser Damage Resistant: >3 J/cm² @ 355nm (20ns pulse).

Integration Ready

• Standard Sizes: Ø12.5mm, Ø25mm, Ø50mm (0.5-5mm thickness).

• Custom Options: Rectangles, polygons, AR coatings, or wedged substrates.

• Mounting Solutions: Threaded retainers, frames, or adhesive rings.