Infrared detector technology has progressed to include many fused wavebands. This has been
driven by the need of military systems to image over diverse spectrums. Imaging systems can
now operate in both the short wave infrared (SWIR) as well as the long wave infrared (LWIR).
Reflective optics seems like a natural solution to such a large waveband, but they will have
more restrictive size and field of view constraints. This paper will demonstrate the steps to
achieve a Petzval lens with fast aperture and moderate field that is achromatic in the SWIR and
has low axial color in the LWIR. The lens achieves a high resolution solution in terms of
modulation transfer function (MTF).
This past spring a new for-credit course on illumination engineering was offered at the College of Optical Sciences at
The University of Arizona. This course was project based such that the students could take a concept to conclusion. The
main goal of the course was to learn how to use optical design and analysis software while applying principles of optics
to the design of their optical systems. Projects included source modeling, displays, daylighting, light pollution, faceted
reflectors, and stray light analysis. In conjunction with the course was a weekly lecture that provided information about
various aspects of the field of illumination, including units, étendue, optimization, solid-state lighting, tolerancing, litappearance
modeling, and fabrication of optics. These lectures harped on the important points of conservation of
étendue, source modeling and tolerancing, and that no optic can be made perfectly. Based on student reviews, future
versions of this course will include more hands-on demos of illumination components and assignments.