Infrared transmission measurements of highly curved optical components

摘要

Abstract: Fourier Transform Infrared Spectrometer (FTIR) measurements on flat witness samples are combined with ray trace results of transmission through a 1/8 inch, 12 mill focal length lens to estimate the net transmission of that lens as it is used in the Geostationary Operational Environmental Satellite (GOES I) Sounder optical train. The ray trace code uses a 'double random' ray method allowing radiometry to be done with a standard ray propagation algorithm.!6