Diffractive lenses for dual-waveband IR

Michael Owen Lidwell

doi:10.1117/12.246678

23 August 1996 Diffractive lenses for dual-waveband IR

Michael Owen Lidwell

Proceedings Volume 2774, Design and Engineering of Optical Systems; (1996) https://doi.org/10.1117/12.246678
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

Plots of the spectral shift of focus over the middle, 3 - 5 micrometers (MWIR), and far, 8 - 12 micrometers (LWIR), infrared wavelengths are presented for thin lenses using various combinations of optical material and employing a diffractive surface cut as a kinoform. Lens examples are given for small field of view aplanats, resolving a tenth of a milliradian and employing a minimal number of lens elements. Particular advantages of the use of the hologram are considered together with some potential problems.

Citation Download Citation

Michael Owen Lidwell "Diffractive lenses for dual-waveband IR", Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); https://doi.org/10.1117/12.246678

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