• Infrared and Laser Engineering
  • Vol. 50, Issue 3, 20200219 (2021)
Chenyang Lv, Renjun Zhan, and Ying Cui
Author Affiliations
  • College of Equipment Management and Support, Chinese People's Armed Police Force Engineering University, Xi’an 710086, China
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    DOI: 10.3788/IRLA20200219 Cite this Article
    Chenyang Lv, Renjun Zhan, Ying Cui. Collimating lens design and aspheric optimization method of laser cauterization gun[J]. Infrared and Laser Engineering, 2021, 50(3): 20200219 Copy Citation Text show less
    Transformation of a Gaussian beam through a spherical single lens
    Fig. 1. Transformation of a Gaussian beam through a spherical single lens
    Schematic diagram of mirror depression degree and radius r
    Fig. 2. Schematic diagram of mirror depression degree and radius r
    Schematic diagram of a rectangular detector array
    Fig. 3. Schematic diagram of a rectangular detector array
    Comparison diagram of Ray fun
    Fig. 4. Comparison diagram of Ray fun
    Comparison diagram of three-dimensional MTF function
    Fig. 5. Comparison diagram of three-dimensional MTF function
    One-dimensional irradiance curves
    Fig. 6. One-dimensional irradiance curves
    Two-dimensional irradiance plane
    Fig. 7. Two-dimensional irradiance plane
    [in Chinese]
    Fig. 7. [in Chinese]
    Collimation system assembly of laser cauterization gun
    Fig. 8. Collimation system assembly of laser cauterization gun
    Experimental effect diagram
    Fig. 9. Experimental effect diagram
    MaterialApplicable wavelength/μmRefractive index at 1 064 nm Abbe number
    K50.4-1.01.52359.48
    K9(BK7)0.3-2.31.51664.17
    MgF20.5-0.91.36059.10
    ZnS0.4-14.52.25028.32
    CaF20.4-11.51.43095.3
    ZnSe0.5-22.02.44024.38
    MgO0.4-9.51.69049.71
    Table 1. [in Chinese]
    ParameterValue
    Effective range/m200
    Spot diameter/mm10
    Lens diameter/mm25
    Lens materialK9
    Uniformity of spot energy±(4.2%-4.3%)
    Table 2. [in Chinese]
    Main lens parameterValue/mm
    Object numerical apertureNA = 0.1
    Effective focal length181.59
    Fiber core diameter0.01
    Paraxial image height2.5
    Pupil diameter17.64
    Radius of curvature92
    Image distance200000
    Table 3. [in Chinese]
    Tolerance typeParameterValue/mm
    Surface toleranceRadius0.32
    Thickness0.1
    Decenter X, Y0.1
    Tilt X, Y0.1
    S+A irregularity0.012
    Element toleranceDecenter X0.03
    Decenter Y0.03
    Start at surface1
    Stop at surface4
    Table 4. [in Chinese]
    Spot radiusValue
    90%>5.01700970
    80%>1.95096272
    50%>0.73902551
    20%>0.33496534
    10%>0.22416649
    Table 5. [in Chinese]
    Chenyang Lv, Renjun Zhan, Ying Cui. Collimating lens design and aspheric optimization method of laser cauterization gun[J]. Infrared and Laser Engineering, 2021, 50(3): 20200219
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