OPTICS & OPTOELECTRONIC TECHNOLOGY, Volume. 19, Issue 6, 38(2021)

Online Calibration Method of Relative Error of Optical Axis in Co-Aperture Optical System

LIN Li-na1, HU Zi-ying1, ZHANG Lin2, and LEI Guang-kun2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    The light-guiding co-aperture optoelectronic imaging system has the characteristics of small rotating load, multiband co-aperture, and can achieve static sealing. At present, it is widely used in optoelectronic devices on multiple platforms. However, compared with the turret type optoelectronic equipment, there is a problem of image rotation. The relative error of the optical axis of the turret-type optoelectronic equipment remains unchanged at different azimuths and pitch angles, so a fixed amount of deflection can be directly given to the tracking viewing axis to ensure the unity of each viewing axis. Due to the existence of image rotation, the relative error of the optical axis of the light-guiding co-aperture optoelectronic device is not consistent at different azimuths and elevation angles. The typical optical path of the light-guided co-aperture optoelectronic tracking device is taken as the analysis object in this paper. The change law of the relative error of the optical axis caused by the image rotation is analyzed in details. The compensation formula is given, and the experimental verification is carried out. The results show that the approximate formula derived in this paper can effectively compensate the relative error of the optical axis of the light-guided co-aperture optical path.

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    LIN Li-na, HU Zi-ying, ZHANG Lin, LEI Guang-kun. Online Calibration Method of Relative Error of Optical Axis in Co-Aperture Optical System[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2021, 19(6): 38

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    Paper Information

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    Received: Mar. 22, 2021

    Accepted: --

    Published Online: Feb. 28, 2022

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    DOI:

    CSTR:32186.14.

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