New infrared optical systems using diffractive optics

Christopher R. Bigwood

doi:10.1117/12.455561

16 October 2002 New infrared optical systems using diffractive optics

Christopher R. Bigwood

Proceedings Volume 4767, Current Developments in Lens Design and Optical Engineering III; (2002) https://doi.org/10.1117/12.455561
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

A method for computing the polychromatic MTF of hybrid refractive - diffractive elements is described taking into consideration the effects of not only the primary diffraction order but also the effects of additional parasitic diffraction orders. The results of this approach are compared with the more conventional single order calculation and with actual measured performance. For certain markets and applications the cost of infrared lenses are critical in order to achieve customer expectations. Two possible methods of realising this requirement are the use of moulded optics or the use of multiple kinoform optics with no refractive power. Examples of such lenses are given along with discussion of the merits and limitations that each approach entails.

Citation Download Citation

Christopher R. Bigwood "New infrared optical systems using diffractive optics", Proc. SPIE 4767, Current Developments in Lens Design and Optical Engineering III, (16 October 2002); https://doi.org/10.1117/12.455561

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