Current Optics and Photonics

  • 제3권3호
  • /
  • Pages.227-235
  • /
  • 2019
  • /
  • 2508-7266(pISSN)
  • /
  • 2508-7274(eISSN)
한국광학회 (Optical Society of Korea)
권호 표지
DOI QR코드

DOI QR Code

Design and Experimental Demonstration of Coaxially Folded All-reflective Imaging System

  • Xiong, Yupeng (College of Intelligent Science, National University of Defense Technology) ;
  • Dai, Yifan (College of Intelligent Science, National University of Defense Technology) ;
  • Chen, Shanyong (College of Intelligent Science, National University of Defense Technology) ;
  • Tie, Guipeng (College of Intelligent Science, National University of Defense Technology)
  • 투고 : 2018.11.29
  • 심사 : 2019.04.11
  • 발행 : 2019.06.25
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

With slimmer, lighter and all-reflective imaging systems in high demand for consumer and military applications, coaxially folded optical image systems are widely considered because they can extend focal length and reduce track length. Most of these systems consist of multiple surfaces, and these surfaces are machined on one element or grouping processing on two elements. In this paper, we report and first experimentally demonstrate an all-aluminum all-reflective optical system which consists of two optical elements, with two high order aspherical surfaces in each element. The coaxially folded system is designed with Seidel aberration theory and advanced optimization with Zemax. The system is made of all-aluminum material processing by single point diamond turning (SPDT). On this basis, we completed the system integration and performed an imaging experiment. The final system has the advantages of short track length and long focal length and broad application prospects in the micro-unmanned aerial vehicle field.

키워드

KGHHD@_2019_v3n3_227_f0001.png 이미지

FIG. 1. Layout of coaxially folded system.

KGHHD@_2019_v3n3_227_f0002.png 이미지

FIG. 2. Structure of concentric multi-reflective optic.

KGHHD@_2019_v3n3_227_f0003.png 이미지

FIG. 3. The initial design results.

KGHHD@_2019_v3n3_227_f0004.png 이미지

FIG. 4. The optimal design results.

KGHHD@_2019_v3n3_227_f0005.png 이미지

FIG. 5. Fabrication of optical surfaces.

KGHHD@_2019_v3n3_227_f0006.png 이미지

FIG. 6. Assembly screws and matching surface of system.

KGHHD@_2019_v3n3_227_f0007.png 이미지

FIG. 7. Decenter control with Talyrond 565H.

KGHHD@_2019_v3n3_227_f0008.png 이미지

FIG. 8. Wavefront of the system.

KGHHD@_2019_v3n3_227_f0009.png 이미지

FIG. 9. The USAF 1951 chart.

KGHHD@_2019_v3n3_227_f0010.png 이미지

FIG. 10. Imaging results of system.

TABLE 1. Specifications of folded imaging system

KGHHD@_2019_v3n3_227_t0001.png 이미지

TABLE 2. Initial parameters of four mirror folded system

KGHHD@_2019_v3n3_227_t0002.png 이미지

TABLE 3. Results of tolerances analysis

KGHHD@_2019_v3n3_227_t0003.png 이미지

참고문헌

  1. E. J. Tremblay, J. Rutkowski, I. Tamayo, P. E. X. Silveira, R. A. Stack, R. L. Morrison, M. A. Neifeld, Y. Fainman, and J. E. Ford, "Relaxing the alignment and fabrication tolerances of thin annular folded imaging systems using wavefront coding," Appl. Opt. 46, 6571-6578 (2007).
  2. E. J. Tremblay, R. A. Stack, R. L. Morrison, and J. E. Ford, "Ultrathin cameras using annular folded optics," Appl. Opt. 46, 463-471 (2007). https://doi.org/10.1364/AO.46.000463
  3. E. J. Tremblay, R. A. Stack, R. L. Morrison, and J. E. Ford, "Annular folded optic imager," Proc. SPIE 6232, 62320R (2006).
  4. A. Ashkan, M. S. Glenn, E. J. Tremblay, I. Stamenov, A. Groisman, J. Legerton, W. Meyers, G. A. Amigo, and J. E. Ford, "Wearable telescopic contact lens," Appl. Opt. 54, 7195-7205 (2015). https://doi.org/10.1364/AO.54.007195
  5. R. Zhang and W. Shen, "Ultrathin lenses using annular folded optics," Infrared Laser Eng. 41, 1306-1311 (2012). https://doi.org/10.3969/j.issn.1007-2276.2012.05.034
  6. R. Zhang and W. Shen, "Ultrathin lenses using annular folded optics," Proc. SPIE 7156, 715604 (2008).
  7. L. Ge and Z. Liang, "Micro-optics label receiving system based on annular aperture ultra-thin lens," Acta Opt. Sin. 35, 1222001-1-222001-6 (2015). https://doi.org/10.3788/AOS201535.1222001
  8. L. Li and D. Wang, "Ultrathin zoom telescopic objective," Opt. Express 24, 18674-18685 (2016). https://doi.org/10.1364/OE.24.018674
  9. J. U. Lee and S. M. Yu, "Analytic design procedure of three-mirror telescope corrected for spherical aberration, comma, astigmatism and Petzval field curvature," J. Opt. Soc. Korea 13, 184-192 (2009). https://doi.org/10.3807/JOSK.2009.13.2.184
  10. X. L. Li, M. Xu, X. D. Ren, and Y. T. Pei, "An optical design of off-axis four-mirror-anastigmatic telescope for remote sensing," J. Opt. Soc. Korea 16, 243-246 (2012). https://doi.org/10.3807/JOSK.2012.16.3.243
  11. M. F. Zou, J. Chang, M. M. Talha, T. C. Zhang, and Y. T. Wang, "Design and analysis of the four-mirror optical system," Optik 121, 1900-1903 (2010). https://doi.org/10.1016/j.ijleo.2009.05.009