Image Science has developed a system for measuring the transmission of small IR lenses in the LWIR and MWIR wavebands. The infrared transmission system measures absolute transmission and minimizes the problems posed by testing short focal length lenses.
This system features a gold-plated integrating sphere, +/- 1% accuracy, +/-.5% repeatability, a 2-12 mm beam diameter, and more. Advanced software techniques can be used in order to maximize the transmission system’s accuracy and repeatability. For additional information on features and an image of the system set up, download the datasheet. You can also contact Image Science directly.