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Design and Modeling of a Dual-Magnification Galilean IR Telescope and Associated Focusing Optics

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Abstract

Infra-rod optical imaging systems usually consists of a front telescope, scanner and focusing optics [1], The telescope is an afocal optical system put in front of the scanner optics to change the magnification of the system. The focusing optics after the scanner are used to finally focus the radiation onto the detector array. These subsystems are usually designed separately in the initial design phase and then combined together to determine their final optical performance. The detector array used is a 60-element HgCdTe array with a 50x50 μm pixel size. 6 mm total array height with 2:1 interlace resulting in total 120 scan lines. The first-order system specifications are given in the Table.

© 2002 Optical Society of America

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