Ying Liu, Jinsong Wang, Huajian Li, Axue Qu. Determination of Optimal Aperture of Hartmann Diaphragm in Automatic Focimeter[J]. Acta Optica Sinica, 2021, 41(10): 1011002
- Acta Optica Sinica
- Vol. 41, Issue 10, 1011002 (2021)
Fig. 1. Schematic diagram of focal meter measurement based on Hartmann method
Fig. 2. Schematic diagram of Hartmann diaphragm
Fig. 3. Schematic diagram of circular aperture Fresnel diffraction
Fig. 4. Simulation diagram of r=0.1 mm. (a) Diffraction screen; (b) patterns after diffraction; (c) three-dimensional display of diffraction patterns; (d) normalized intensity distribution of diffraction patterns
Fig. 5. Normalized light intensity waveforms of diffraction pattern under different circular hole radii
Fig. 6. Two-hole interference principle diagram
Fig. 7. Two-hole interference simulation diagram
Fig. 8. Relationship between stripe spacing and two-hole spacing
Fig. 9. Programming flowchart
Fig. 10. Experimental setup
Fig. 11. Three sets of parameters Hartmann diaphragm imaging diagram. (a) (r, d, m, n)=(0.2,0.8,9,9); (b) (r, d, m, n)=(0.1,0.75,9,11); (c) (r, d, m, n)=(0.04,0.9,7,11)
Fig. 12. Actual picture of Hartmann diaphragm when r=0.2 mm and d=0.8 mm
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Table 1. Hartmann diaphragm imaging spot pattern coordinate acquisition correct amount
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Table 2. Hartmann diaphragm spot availability
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