• Opto-Electronic Engineering
  • Vol. 35, Issue 10, 107 (2008)
WANG Feng*, LI Hai-feng, ZHENG Zhen-rong, and LIU Xiang-dong
Author Affiliations
  • [in Chinese]
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    DOI: Cite this Article
    WANG Feng, LI Hai-feng, ZHENG Zhen-rong, LIU Xiang-dong. Video Lens Design for Light-spot Position Measurement System[J]. Opto-Electronic Engineering, 2008, 35(10): 107 Copy Citation Text show less

    Abstract

    In order to meet the special requirements of a linear Charge-coupled Device(CCD) camera used in a 2-D localizer system,a new video lens design is proposed,in which a spherical lens is used as the front element and a cylindrical lens is used as the back element.The image plane of the front element and the object plane of the back element share the same position.The video lens has the wide field of view,small distortion,and highly imaging ability.By the lens,the spots equidistant from the basic shaft(eg.x shaft) can be imaged into the same line.The design considerations and the characteristics of aberrations are discussed.A useful design results with f′=-20 mm,2ω=74°,distortion less than 1.6% are provided.The aberration curves and calculated Modulation Transfer Function(MTF) of the video lens are also given.
    WANG Feng, LI Hai-feng, ZHENG Zhen-rong, LIU Xiang-dong. Video Lens Design for Light-spot Position Measurement System[J]. Opto-Electronic Engineering, 2008, 35(10): 107
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