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Design and Analysis of a 10× Optical Zoom System for an LWIR Camera
2014
Journal of the Optical Society of Korea
This paper presents the design and evaluation of the optical zoom system for an LWIR camera. The operating wavelength range of this system is from 7.7 µm to 12.8 µm. Through a paraxial design and optimization process, we have obtained the extended four-group inner-focus zoom system with focal lengths of 10 to 100 mm, which consists of the six lenses including four aspheric surfaces and two diffractive surfaces. The diffractive lenses were used to balance the higher-order aberrations, and its
doi:10.3807/josk.2014.18.5.574
fatcat:imo2fcvg35hkhmmc6i5oerdqtu