Coligh’s Standard 365nm Optical Bandpass Filter FWHM 45nm

The 365nm bandpass filter is designed to transmit ultraviolet light centered at 365nm with a Full Width at Half Maximum (FWHM) of 45nm. This filter is ideal for applications requiring moderate bandwidth, providing enhanced UV light throughput while maintaining effective selectivity, such as in UV curing, fluorescence imaging, and analytical instruments.

Standard Specifications:

• Type: UV Bandpass Filter
• Center Wavelength (CWL): 365nm ± 5nm
• Angle of Incidence: 0° ± 5°
• FWHM: 45nm ± 5nm
• Blocking Range: 200nm – 1000nm
• Blocking Depth: OD2, OD3, OD4, OD5, OD6, or higher
• Transmission: > 90% peak
• Thickness: 1.0mm, 1.1mm
• Sizes: Square or round (e.g., φ8mm, φ10mm, φ12.5mm, φ25.4mm, φ50mm) with optional mounting

Custom Options:

• Bandwidth: Custom FWHM available per client request.
• Angle of Incidence: Adjustable based on specific application needs.
• Blocking Depth: Customizable to any OD level as required.
• Sizes: Available in square or round formats, up to 150mm x 150mm.
• Material Thickness: Adjustable based on project requirements.
• Transmission & Blocking Range: Customizable, with options to extend the blocking range up to 2000nm.

Applications:

• UV Curing: Provides efficient UV light transmission for rapid curing of adhesives, coatings, and inks, commonly used in printing, electronics, and manufacturing.
• Fluorescence Imaging: Ideal for exciting fluorophores in biological and medical microscopy, enhancing the visibility of cell structures and tissues.
• Analytical Instruments: Used in spectrophotometers and chemical analysis tools for detecting specific compounds with high sensitivity.
• UV Disinfection: Effective for sterilizing water, air, and surfaces by inactivating bacteria and viruses using targeted UV exposure.
• Forensic Science: Enhances the detection of fingerprints, bodily fluids, and security features on documents, aiding forensic investigations.
• Phototherapy: Used in dermatology to treat skin conditions like psoriasis and eczema by delivering controlled doses of UV light.
• Industrial Quality Control: Enables detection of material defects in automated inspection systems, ensuring product quality and consistency.