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Optical Engineering • Open Access

Achromatic triplet and athermalized lens assembly for both midwave and longwave infrared spectra
Author(s): Chih-Wei Kuo

Paper Abstract

Analytic solutions for finding the achromatic triplet in the midwave and longwave infrared spectra simultaneously are explored. The relationship between the combination of promising refractive materials and the system’s optical power is also formulated. The principles for stabilizing the effective focal length of an air-spaced lens group with respect to temperature are explored, and the thermal properties of the optical component and mechanical elements mutually counterbalanced. An optical design based on these achromatic and athermal theories is demonstrated, and the image quality of the lens assembly seems to approach the diffractive limitation.

Paper Details

Date Published: 29 August 2013
PDF: 7 pages
Opt. Eng. 53(2) 021102 doi: 10.1117/1.OE.53.2.021102
Published in: Optical Engineering Volume 53, Issue 2
Show Author Affiliations
Chih-Wei Kuo, National United Univ. (Taiwan)

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