• Optics and Precision Engineering
  • Vol. 31, Issue 4, 459 (2023)
Xiangrui DUAN1, Aoxin FEI1, Zhiyi LU2, Yulang PENG1, and Zichun LE1,*
Author Affiliations
  • 1College of Science, Zhejiang University of Technology, Hangzhou30023, China
  • 2Hangzhou PuYu Technology Development Co.,Ltd, Hangzhou31111, China
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    DOI: 10.37188/OPE.20233104.0459 Cite this Article
    Xiangrui DUAN, Aoxin FEI, Zhiyi LU, Yulang PENG, Zichun LE. Tracked motion flexible diffractive optical elements suppressing laser speckle and its durability test[J]. Optics and Precision Engineering, 2023, 31(4): 459 Copy Citation Text show less
    Diagram of a flexible DOE loop with tracked motion
    Fig. 1. Diagram of a flexible DOE loop with tracked motion
    Diagram of optical system of a micro projector based on flexible DOE loop
    Fig. 2. Diagram of optical system of a micro projector based on flexible DOE loop
    Dynamic two-dimensional DOE structure diagram caused by the tracked motion
    Fig. 3. Dynamic two-dimensional DOE structure diagram caused by the tracked motion
    Diagram of fabricating a flexible DOE loop
    Fig. 4. Diagram of fabricating a flexible DOE loop
    Speckle image of spot and light intensity distribution
    Fig. 5. Speckle image of spot and light intensity distribution
    Speckle contrasts of control group (group 1) and experimental group (group 2) at different motion speeds in Experiment 1
    Fig. 6. Speckle contrasts of control group (group 1) and experimental group (group 2) at different motion speeds in Experiment 1
    Line chart of daily DOE length change in Experiment 1
    Fig. 7. Line chart of daily DOE length change in Experiment 1
    Speckle images of control group (group 1) and experimental group (group 2) in Experiment 1
    Fig. 8. Speckle images of control group (group 1) and experimental group (group 2) in Experiment 1
    Speckle contrasts of control group (group 1) and experimental group (group 2) at different motion speeds in Experiment 2
    Fig. 9. Speckle contrasts of control group (group 1) and experimental group (group 2) at different motion speeds in Experiment 2
    Line chart of daily DOE length change in Experiment 2
    Fig. 10. Line chart of daily DOE length change in Experiment 2
    Xiangrui DUAN, Aoxin FEI, Zhiyi LU, Yulang PENG, Zichun LE. Tracked motion flexible diffractive optical elements suppressing laser speckle and its durability test[J]. Optics and Precision Engineering, 2023, 31(4): 459
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