MultiBandpass Filter 450/720/840

Triple-Band Precision Filter for Multi-Wavelength Applications

The MultiBandpass Filter 450/720/840 delivers simultaneous transmission at three discrete wavelengths—450 nm (blue), 720 nm (near-infrared), and 840 nm (NIR)—making it ideal for multi-channel fluorescence microscopy, spectroscopy, and color-separation imaging.

Key Features

• Three high-transmission bands: Optimized passbands at 450 nm, 720 nm, and 840 nm with steep edge transitions
• Deep blocking: OD 4+ rejection between bands ensures minimal crosstalk and spectral purity
• Rugged hard-coated optics: Durable ion-assisted deposition for long-term stability in lab environments
• Low autofluorescence: Minimal background signal for sensitive detection workflows
• Standard 25 mm diameter: Drop-in compatibility with most filter cubes and optical mounts

Applications

• Multi-color fluorescence microscopy (DAPI/Cy5/NIR dye combinations)
• Raman spectroscopy with laser-line separation
• NIR/visible dual-band imaging for biomedical and industrial inspection
• Optical sensing and photonics research requiring discrete wavelength isolation

Specifications

Designed for researchers and OEMs who demand repeatable performance, tight tolerances, and minimal spectral drift across temperature and humidity cycles.