QLWP - Long Wave Pass Filters
Long Wave Pass filters block shorter wavelengths and transmit longer wavelengths. Blocking can be from reflectance, absorption or a combination. Transmission in the pass band can be enhanced with an antireflection coating on the second surface. Quantum's QLWP series offers a variety of blocking ranges and densities, and the cut-off wavelength can be positioned anywhere from the UV to NIR.