Coligh’s Standard 562nm Optical Bandpass Filter FWHM 10nm

The 562nm optical bandpass filter is designed to transmit light centered at 562nm with a narrow Full Width at Half Maximum (FWHM) of 10nm. This filter is ideal for applications that require precise wavelength selection and high optical performance, particularly in the green-yellow region of the visible spectrum. It is widely used in fluorescence imaging, spectroscopy, and biomedical applications where accurate light filtering is essential.

Standard Specifications:

• Type: VIS (Visible) Bandpass Filter, Interference Filter
• Coating Type: Hard-coated for high durability and stability
• Center Wavelength (CWL): 562nm ± 2nm
• Angle of Incidence: 0° ± 5°
• FWHM: 10nm ± 2nm
• Blocking Range: 200nm – 1100nm
• Blocking Depth: OD4 – OD6 or higher for superior suppression of out-of-band light
• Transmission Peak: > 85% at CWL
• Thickness: 1.0mm, 1.1mm
• Sizes Available: φ12.5mm, φ25.4mm, φ50mm (custom sizes available upon request)
• Clear Aperture: > 90%
• Material: B270, Fused Silica for enhanced optical clarity and minimal absorption

---

Custom Options:

• Bandwidth: Additional FWHM options available (e.g., 5nm, 8nm, 12nm, 15nm, 20nm, 30nm, 35nm, 40nm) tailored to specific application needs.
• Angle of Incidence: Customizable to suit your optical system’s design requirements.
• Blocking Depth: Options for OD2, OD3, OD4, etc., based on project requirements.
• Sizes: Round or square shapes available, with custom sizes up to 150mm x 150mm.
• Material Thickness: Tailorable according to project specifications.
• Transmission & Blocking Range: Customizable within 200nm to 1500nm.

---

Applications:

• Fluorescence Microscopy: Ideal for isolating green-yellow fluorescent dyes (e.g., FITC), enhancing signal detection and contrast.
• Spectroscopy: Provides precise spectral analysis in scientific research, especially for applications requiring narrowband light in the green-yellow region.
• Biomedical Imaging: Used in diagnostic instruments for detecting biomarkers, enhancing the visibility of biological samples in the yellow-green spectrum.
• Optical Communication: Supports systems requiring precise wavelength filtering for improved signal clarity in visible light communication.
• Color Imaging & Photography: Enhances color accuracy by filtering specific wavelengths, ideal for improving image quality and contrast.
• Laser Systems: Suitable for laser applications where selective wavelength isolation is needed for efficient laser line filtering.
• Lighting Applications: Used in specialized lighting solutions where accurate control of green-yellow light output is required.