Coligh’s Standard 585nm Optical Bandpass Filter FWHM 15nm

The 585nm optical bandpass filter is specifically engineered to transmit light centered at 585nm with a Full Width at Half Maximum (FWHM) of 15nm. This filter provides a narrow, high-precision wavelength selection, making it ideal for applications where accurate spectral isolation in the orange-yellow region of the visible spectrum is crucial. It is commonly utilized in biomedical imaging, fluorescence microscopy, spectroscopy, and optical communication systems.

Standard Specifications:

• Type: VIS (Visible) Bandpass Filter, Interference Filter
• Coating Type: Hard-coated for enhanced durability and stability
• Center Wavelength (CWL): 585nm ± 3nm
• Angle of Incidence: 0° ± 5°
• FWHM: 15nm ± 3nm
• Blocking Range: 200nm – 1200nm
• Blocking Depth: OD4 – OD6 or higher, providing effective suppression of out-of-band wavelengths
• Transmission Peak: > 80% at CWL
• Thickness: 1.0mm, 1.1mm
• Sizes Available: φ6mm, φ8mm, φ10mm, φ12.5mm, φ25.4mm, φ50mm any square or round (custom sizes available upon request)
• Clear Aperture: > 90%
• Material: B270, Fused Silica for high optical clarity and low absorption

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Custom Options:

• Bandwidth: Additional FWHM options available (e.g., 8nm, 10nm, 12nm, 20nm, 25nm,  30nm, 35nm, 40nm, 45nm, 50nm) tailored to specific needs.
• Angle of Incidence: Adjustable to optimize for different optical setups.
• Blocking Depth: Options for OD2, OD3, OD4, etc., as per application requirements.
• Sizes: Available in round or square configurations, with custom sizes up to 150mm x 150mm.
• Material Thickness: Tailorable based on project specifications.
• Transmission & Blocking Range: Customizable between 200nm to 1500nm based on user requirements.

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Applications:

• Fluorescence Microscopy: Ideal for isolating fluorescent dyes in the orange-yellow spectrum, providing enhanced contrast and sensitivity in imaging biological samples.
• Spectroscopy: Enables precise wavelength selection for spectral analysis, crucial in scientific research and material studies.
• Biomedical Imaging: Used in diagnostic devices to detect biomarkers with high accuracy, improving visibility and differentiation of biological structures.
• Optical Communication: Ensures efficient signal transmission by filtering specific wavelengths in visible light communication systems.
• Color Imaging & Photography: Enhances image quality by filtering unwanted wavelengths, perfect for applications requiring accurate color reproduction.
• Laser Systems: Suitable for laser applications where selective wavelength filtering is required for high-performance laser line isolation.
• Specialized Lighting: Provides controlled wavelength output in lighting systems, useful in environments where precise light filtering is necessary.