490nm Optical Bandpass Filter (FWHM 10nm)

The 490nm optical bandpass filter is engineered to transmit light centered at 490nm with a Full Width at Half Maximum (FWHM) of 10nm. This filter ensures precise wavelength selection and high transmission efficiency, making it ideal for demanding applications in fluorescence microscopy, biomedical imaging, and optical sensing.

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Standard Specifications:

• Type: VIS Bandpass Filter, Interference Filter
• Coating Type: Hard-coated for excellent durability and performance
• Center Wavelength (CWL): 490nm ± 2nm
• Full Width at Half Maximum (FWHM): 10nm ± 2nm
• Blocking Range: 200nm – 1100
• Blocking Depth: OD4, OD5, OD6, or higher
• Peak Transmission: > 70%
• Thickness: 1.0mm, 1.1mm (custom options available)
• Sizes: Round or square (e.g., φ12.5mm, φ25.4mm, φ50mm)
• Clear Aperture: > 90%
• Material: Fused Silica, B270

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Custom Options:

• Bandwidth: Custom FWHM options (e.g., 5nm, 8nm, 12nm, 15nm, 18nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm).
• Angle of Incidence (AOI): Adjustable for specific system requirements.
• Blocking Depth: Tailored OD levels (e.g., OD2, OD3, OD4, etc.).
• Size: Configurable round or square sizes up to 150mm x 150mm.
• Material Thickness: Customizable based on project needs.
• Transmission and Blocking Range: Customizable within 200nm – 2000nm.

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Applications:

• Fluorescence Microscopy: Enhances detection of cyan fluorophores with high selectivity.
• Biomedical Imaging: Supports visualization of specific biomarkers in cellular and tissue studies.
• Spectroscopy: Delivers precise spectral isolation for accurate measurements in the blue-green spectrum.
• 3D Imaging: Improves depth resolution by isolating narrowband light in structured-light systems.
• Optical Sensing: Facilitates wavelength-specific detection in environmental monitoring and biochemical assays.
• Laser Alignment: Perfect for use with lasers emitting in the blue spectrum.
• Color Imaging: Ensures precise color selection for enhanced image contrast and quality.