The 80040 is an excellent choice when transitioning from a collimated beam of light into a fiber (or visa versa), when working in the infrared. An advantage of the 80040 is that it does not require optical alignment. Simply connect the fiber optic cable and it is ready to use. Its 1.5-Inch Series female flange is compatible with a variety of products, including the Oriel^® FT-IR Spectrometer Modular solution. An off-axis parabolic reflector is integrated into the design, rather than a condenser lens. IR refractive optics are expensive and have transmittance limitations. Using this type of reflector provides several advantages: its gold coating enhances IR reflectance, the focal point is displaced from the mechanical axis, giving full access to the reflector focus area, and there is no shadowing with the fiber positioned at the focal point. This type of reflector provides very efficient radiation control because collection or focus occurs over very large solid angles. This makes the 80040 particularly useful with lower power incoherent sources, such as the Silicon Carbide or QTH infrared sources.