Description
Short-Pass Filters – Blocking Long Wavelengths for Precision Optical Systems Detailed
Description:
Short-Pass Filters transmit wavelengths shorter than a specified cutoff wavelength while blocking longer wavelengths. They use precision thin-film interference coatings to achieve sharp cutoff edges and high contrast between passband and stopband. These filters are essential for applications where shorter wavelengths need to be isolated from longer, interfering light sources.
Key Specifications:
Materials: BK7, Fused Silica, Optical Glass
Cutoff Wavelength: Customizable (300nm – 1500nm)
Passband Transmittance: >85% (typical)
Stopband Optical Density: OD 3 – OD 6 Size: 5mm × 5mm – 150mm × 150mm
Surface Quality: 60/40, 40/20
Coating: Dielectric coating (temperature stable, low absorption)
Applications:
Fluorescence imaging, UV spectroscopy, laser systems, color separation, medical devices, environmental monitoring.
