Shortpass filters are designed to have a very sharp transition from transmission to reflection, making them extremely useful in a number of applications. Available in a variety of cut-off wavelengths, they are ideal for fluorescence applications, Display, separating spectral orders, and creating custom, efficient bandpass filters when combined with longpass filters. With an average transmission of 85% and a blocking optical density of 2.0, excellent contrast can be achieved in machine vision and gauging applications. A single layer AR coating on the back surface enhances the overall efficiency of each filter.

 All filters are available in 12.7, 25.4, and 50.8mm diameters, or requested dimension.

Common Specifications:

· Transmission (%): >93

· Surface Quality: 40-20

· Optical Density OD: ≥4.0

· Substrate: H-K9L,UV Grade Fused Silica or requested

Technical curve