• Opto-Electronic Engineering
  • Vol. 37, Issue 7, 36 (2010)
LIAO Jing-yu1、2、*, GAO Xiao-dong1, LAN Gong-pu1、2, and ZHAO Ren-jie1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    LIAO Jing-yu, GAO Xiao-dong, LAN Gong-pu, ZHAO Ren-jie. Dynamic Thermal/Structural/Optical Analysis and Design for Aerial Camera Lens System[J]. Opto-Electronic Engineering, 2010, 37(7): 36 Copy Citation Text show less

    Abstract

    When the ambient temperature dynamically changes, internal temperature grads in the lens system will produce non-uniform changes of refractive index, thickness and radius, which degrade the image quality. Reasonable thermal control methods are expected to effectively reduce the temperature grads and improve image quality. Thermal/Structural/Optical (TSO) integrated analysis is used for a whole aerial camera lens system, to emulate the lens temperature field under dynamic thermal environment when the camera carrier goes up. A thermal control method is designed accordingly and lens surface shape is extracted. Lens system Modulation Transfer Function (MTF) is calculated by using lens shape Zernike coefficients to evaluate the image quality under dynamic thermal conditions. Results demonstrate that the designed thermal control can effectively reduce the lens temperature grads in both radial and axial direction. Therefore, the improved lens performance can satisfy high resolution imaging demands.
    LIAO Jing-yu, GAO Xiao-dong, LAN Gong-pu, ZHAO Ren-jie. Dynamic Thermal/Structural/Optical Analysis and Design for Aerial Camera Lens System[J]. Opto-Electronic Engineering, 2010, 37(7): 36
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