National Photocolor Corp. is offering overnight delivery on its line of IR pellicle beamsplitters, filters and windows. The pellicles are available for selected bandwidths within the 700-nm to 5-µm range. Coatings can be altered to meet different states of polarization as well as narrow bandwidth applications. Parts are tested for transmission, using in-house spectrophotometers covering the range from the UV to 20 µm. The company can meet critical transmitted wavelength specifications with a better than 1/10 wavefront.