Dichroic filters separate a broad spectrum of light into two components: a reflected component and a transmitted component. They provide the ability to select different bands from a spectrum and direct those bands to where they can either be used or discarded. Heat / UV control, color separation, and fluorescence microscopy are some of the most common uses of dichroic filters.
Selecting a Dichroic Filter
Click Dichroic Filters to shop or browse all of our standard models, or select a product series below for more information on our products and capabilities.
| Series |
Features |
 |
Mercury-SC™ Dichroic Filters |
• High transmission: >60% typical at 254 nm
• Qualified for high temperature (300 °C)
• Spectral stability in any environment
• Low autofluorescence
• Qualified for high humidity - MIL-STD-810E, Method 507.3, Procedure III, 30 cycles
• Minimized thickness: < mm (typical) |
 |
Heat Control Filters |
• Hot mirrors reflect near-IR heat and transmit visible light at 0°
• Cold mirrors reflect visible light and transmit near-IR heat at 45°
• Available in 25.4 mm diameter and 50.8 mm square sizes |
 |
Dichroic Laser Beam Combiners |
• Combine or split multiple laser beams
• Insensitive to polarization
• Rigid Ion-beam sputtered coating |