MultiBandpass Filter 640/795

Dual-Band Precision for NIR Fluorescence & Imaging

The MultiBandpass Filter 640/795 delivers simultaneous transmission at 640 nm and 795 nm, engineered for multi-channel fluorescence microscopy, NIR spectroscopy, and dual-wavelength imaging systems. Precision ion-beam-sputtered coatings ensure steep edge transitions, high peak transmission, and deep blocking across UV-visible-NIR ranges.

Key Features

• Dual passbands: 640 nm (visible red) and 795 nm (near-infrared) for simultaneous detection
• High transmission: >90% at center wavelengths for maximum signal throughput
• Deep blocking: OD 4+ rejection outside passbands to eliminate crosstalk
• Steep edges: Rapid transition slopes for precise spectral isolation
• Durable hard coatings: Resistant to humidity, temperature cycling, and cleaning protocols

Applications

• Multi-color fluorescence microscopy (Cy5, Alexa Fluor 647, ICG)
• NIR imaging and photoacoustic systems
• Dual-channel spectroscopy and flow cytometry
• Medical diagnostics and tissue imaging
• Research instrumentation requiring simultaneous visible/NIR detection

Specifications

Substrate: High-quality optical glass | Coating: Ion-beam-sputtered multilayer dielectric | Surface quality: 40-20 scratch-dig | Parallelism: <3 arcmin | Clear aperture: >90%

Ideal for researchers and OEMs demanding repeatable spectral performance in demanding lab and clinical environments.