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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51050


    Title: Optimization design of two-group night vision zoom lenses
    Authors: Tien,CL;Huang,CH;Lin,TW;Sun,WS;Lin,CS
    Contributors: 光電科學與工程學系
    Date: 2011
    Issue Date: 2012-03-27 18:16:45 (UTC+8)
    Publisher: 國立中央大學
    Abstract: An optimization design for mechanically compensated two-group zoom lenses for night vision applications is presented. Two optimization algorithms combined with a merit function and the damped least-squares method are proposed and used for optimization of each lens-group. This optical lens design should be good enough to meet the performance requirements for an image intensifier tube. The proposed zoom system consists of a negative and a positive lens-group structure with one aspheric lens and seven glass lenses. The design result of zoom lenses includes spectral range of 600-900 nm, focal length range of 12-35 mm, zoom ratio of 2.9, the maximum full-field angle of 74 degrees and f-number of 1.9-2.3. The total length of the zoom system is less than 200 mm. The design results show that the best performance can be obtained by our proposed approach.
    Relation: INDIAN JOURNAL OF PURE & APPLIED PHYSICS
    Appears in Collections:[Department of Optics and Photonics] journal & Dissertation

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