Stock IR Filters & Windows for Your Medical Needs
Featured Product from Electro Optical Components, Inc.
Infrared (IR) filters are normally combinations of thin film deposition interference filters. Out of band blocking can be achieved by the proper choice of substrate, reflectance filter stacks or by adding absorption glass.
The thin film infrared filters are comprised of stacks of thin layers (of different optical materials) in controlled thicknesses. Light is reflected at each film interface and by the correct choice of parameters can be made to interfere with that from other interfaces, constructively for certain wavelengths giving high reflectance, and destructively for others giving high transmittance. Long wave pass, short wave pass and bandpass filters can be designed and manufactured in this way.
Electro Optical Components offers a wide variety of these IR filters from stock.