Volume 6 Issue 4
Aug.  2013
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LI Wei-shan, CHEN Chen, YU Guo-hui, LI Chen-you, LIU Xiao-chan, ZHANG Yu, WANG Lu-jun, LIU Ying. Optical design of single digital stereo dual-channel projection lens[J]. Chinese Optics, 2013, 6(4): 563-569. doi: 10.3788/CO.20130604.0563
Citation: LI Wei-shan, CHEN Chen, YU Guo-hui, LI Chen-you, LIU Xiao-chan, ZHANG Yu, WANG Lu-jun, LIU Ying. Optical design of single digital stereo dual-channel projection lens[J]. Chinese Optics, 2013, 6(4): 563-569. doi: 10.3788/CO.20130604.0563

Optical design of single digital stereo dual-channel projection lens

doi: 10.3788/CO.20130604.0563
  • Received Date: 21 Feb 2013
  • Rev Recd Date: 23 Apr 2013
  • Publish Date: 10 Aug 2013
  • A new single digital stereo dual-channel projection system is introduced and a dual-channel projection lens is designed by using ZEMAX software and an artifical structure method. The structure of lens based on refraction type is off-axis and with three optic axes. It includes a former group and a back group. The former group is composed of seven glass sphere lenses and the back group consists of two identical and symmetrical structures composed of four glass sphere lenses. The lens has a total length of 243.8 mm, a maximum diameter of 93 mm, and a focal length of 20.23 mm. Moreover, its Field of View(FOV) and F-number are 36 and 2.01 respectively, and the distance of two assistant optic axes and the Back Focal Length(BFL) are 8.2 mm and 37.8 mm, respectively. The system performs excellently in image quality, and has advantages of small size, simple structure and low cost.

     

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