Effect of phase object position on results of Moire deflectometry

Yayi CHEN; Yunyun CHEN; Jingyun ZHANG; Cuihong YANG

doi:10.5768/JAO202243.0503003

Journal of Applied Optics, Volume. 43, Issue 5, 943(2022)

Effect of phase object position on results of Moire deflectometry

Yayi CHEN1...1,1,1, Yunyun CHEN1,1,1,1,1,1,*, Jingyun ZHANG1,1,1,1, and Cuihong YANG1,1,11 |Show fewer author(s)

¹1Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science and Technology, Nanjing 210044, China

¹2Jiangsu International Joint Laboratory on Meterological Photonics and Optoelectronic Detection, Nanjing University of Information Science and Technology, Nanjing 210044, China

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Figures & Tables(9)

Fig. 1. Optical path diagram of Moire deflectometry (phase object placed in front of 2 gratings)

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Fig. 2. Optical path diagram of Moire deflectometry (phase object placed in middle of gratings)

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Fig. 3. Moire fringes with object to be measured placed on different positions (unburned)

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Fig. 4. Moire fringes with object to be measured placed on different positions (burning)

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Fig. 5. Curves of phase distribution

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Fig. 6. Curves of deflective angle distribution

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$Diagram of 3-D refractive index distribution$

Fig. 7. Diagram of 3-D refractive index distribution

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$Curves of radial refractive index distribution$

Fig. 8. Curves of radial refractive index distribution

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Table 1. Comparison of theoretical and experimental results
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Table 1. Comparison of theoretical and experimental results
相位物体位置 $Δ$ $Δ_{2}$ $Δ / Δ_{2}$ $ϕ_{Δ (\max)} / ϕ_{Δ_{2} (\max)}$ 相对误差 /%
G₁前 10 — — — —
G₁与G₂之间 10 4 2.5 2.455 1.8
G₁与G₂之间 10 5 2 1.765 11.75
G₁与G₂之间 10 6 1.67 1.717 2.8

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Yayi CHEN, Yunyun CHEN, Jingyun ZHANG, Cuihong YANG. Effect of phase object position on results of Moire deflectometry[J]. Journal of Applied Optics, 2022, 43(5): 943

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