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    Optical and Opto-Mechanical Design of an F/2.5 Broadband Infrared Objective Lens Using Multiple Cold Stops and Cooled Detectors

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    Name:
    azu_etd_17668_sip1_m.pdf
    Embargo:
    2025-01-01
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    6.627Mb
    Format:
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    Author
    Deacon, C. Elizabeth
    Issue Date
    2019
    Keywords
    Broadband
    Cooled
    Infrared
    Advisor
    Kim, Daewook
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction, presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Embargo
    Release after 01/01/2025
    Abstract
    This paper discusses the design and production of a f/2.5, 25mm focal length lens that images portions of the SWIR and MWIR spectrums from 1 – 5.5µm. Challenges associated with imaging in such a wide spectrum are discussed, including the need to correct for chromatic errors when a limited number of materials are available. The lens is designed to be used on three different cryogenically cooled detectors, each with differing stop locations relative to the lens. The paper discusses the effect that a varied stop has upon the third-order aberrations and covers specifics of an opto-mechanical design which meets the performance requirements for each detector. Cooled detectors require additional analysis to ensure that narcissus effects will not dominate the image. A method for analyzing the narcissus effects is highlighted. The evolution of the design as the lens is transitioned from theory into prototype is discussed. Images captured with the lens assembly are presented along with performance data to compare theoretical to measured performance.
    Type
    text
    Electronic Thesis
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Optical Sciences
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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