Comparison Of Polychromatic And Monochromatic Lens Assessment In The Far Infrared

Nigel D. Haig; Colin Lewis; Richard H. Runalls

doi:10.1117/12.955283

12 October 1977 Comparison Of Polychromatic And Monochromatic Lens Assessment In The Far Infrared

Nigel D. Haig, Colin Lewis, Richard H. Runalls

Proceedings Volume 0098, Assessment of Imaging Systems I; (1977) https://doi.org/10.1117/12.955283
Event: Assessment of Imaging Systems, 1976, London, United Kingdom

Abstract

Techniques designed for assessing the performance of lenses operating in the 8-13 micron band are described. These include interferometry and pupil scanning, both using monochromatic radiation from a CO₂ laser source. In addition a nominally polychromatic line spread function apparatus is shown. Results are presented of MTF using these techniques, along with those from a commercially available polychromatic grating scanning instrument. Measurements have been made on standard audit and operational lenses. Comparisons are made and differences attributable to radiation source emphasised.

Citation Download Citation

Nigel D. Haig, Colin Lewis, and Richard H. Runalls "Comparison Of Polychromatic And Monochromatic Lens Assessment In The Far Infrared", Proc. SPIE 0098, Assessment of Imaging Systems I, (12 October 1977); https://doi.org/10.1117/12.955283

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