Achromatic Doublet

John Loomis

50-mm focal length, f/5, HFOV: 2°

System/Prescription Data



File : C:\Users\loomisjs\ZEMAX\doublet\doublet1.ZMX
Title: Achromatic Doublet
Date : 6/1/2011


GENERAL LENS DATA:

Surfaces                :                5
Stop                    :                1
System Aperture         : Entrance Pupil Diameter = 10
Glass Catalogs          : SCHOTT
Ray Aiming              : Off
Apodization             : Uniform, factor =   0.00000E+000
Temperature (C)         :    2.00000E+001
Pressure (ATM)          :    1.00000E+000
Adjust Index Data To Environment  : Off
Effective Focal Length  :              50 (in air at system temperature and pressure)
Effective Focal Length  :              50 (in image space)
Back Focal Length       :        48.48202
Total Track             :        51.58202
Image Space F/#         :               5
Paraxial Working F/#    :               5
Working F/#             :        5.004565
Image Space NA          :      0.09950372
Object Space NA         :          5e-010
Stop Radius             :               5
Paraxial Image Height   :        1.746038
Paraxial Magnification  :               0
Entrance Pupil Diameter :              10
Entrance Pupil Position :               0
Exit Pupil Diameter     :        10.10109
Exit Pupil Position     :       -50.50543
Field Type              : Angle in degrees
Maximum Radial Field    :               2
Primary Wavelength      :       0.5875618 µm
Lens Units              :   Millimeters
Angular Magnification   :       0.9899925

Fields          : 3
Field Type              : Angle in degrees
 #        X-Value        Y-Value         Weight
 1       0.000000       0.000000       1.000000
 2       0.000000       1.400000       1.000000
 3       0.000000       2.000000       1.000000

Vignetting Factors
 #       VDX       VDY       VCX       VCY       VAN
 1  0.000000  0.000000  0.000000  0.000000  0.000000
 2  0.000000  0.000000  0.000000  0.000000  0.000000
 3  0.000000  0.000000  0.000000  0.000000  0.000000

Wavelengths     : 3
Units: µm
 #          Value         Weight
 1       0.486133       1.000000
 2       0.587562       1.000000
 3       0.656273       1.000000

SURFACE DATA SUMMARY:

Surf     Type         Radius      Thickness                Glass      Diameter          Conic   Comment
 OBJ STANDARD       Infinity       Infinity                                  0              0 
 STO STANDARD       30.74682              2                N-BK7      10.02875              0 
   2 STANDARD      -27.11051            0.1                           9.954126              0 
   3 STANDARD      -25.88817              1               N-SF10       9.93012              0 
   4 STANDARD      -59.04416       48.48202                           9.923887              0 
 IMA STANDARD       Infinity                                          3.506038              0 

SURFACE DATA DETAIL:

Surface OBJ STANDARD 
Surface STO STANDARD 
Surface   2 STANDARD 
Surface   3 STANDARD 
Surface   4 STANDARD 
Surface IMA STANDARD 

COATING DEFINITIONS:


EDGE THICKNESS DATA:

Surf           Edge
 STO       1.127586
   2       0.080189
   3       1.271717
   4      48.690882
 IMA       0.000000

SOLVE AND VARIABLE DATA:

 Curvature of   1       : Variable
 Curvature of   2       : Variable
 Curvature of   3       : Variable
 Curvature of   4       : Solve, Marginal ray exit angle = -0.1
 Thickness of   4       : Solve, Marginal ray height = 0 at pupil zone 0

INDEX OF REFRACTION DATA:

System Temperature:   20.0000 Celsius
System Pressure   :    1.0000 Atmospheres
Absolute air index:    1.000272 at wavelength 0.587562 µm
Index data is relative to air at the system temperature and pressure.
Wavelengths are measured in air at the system temperature and pressure.

Surf                  Glass    Temp    Pres     0.486133   0.587562   0.656273
   0                          20.00    1.00   1.00000000 1.00000000 1.00000000
   1                  N-BK7   20.00    1.00   1.52237629 1.51680003 1.51432235          
   2                          20.00    1.00   1.00000000 1.00000000 1.00000000
   3                 N-SF10   20.00    1.00   1.74643051 1.72827707 1.72090617          
   4                          20.00    1.00   1.00000000 1.00000000 1.00000000
   5                          20.00    1.00   1.00000000 1.00000000 1.00000000



ELEMENT VOLUME DATA:

For centered elements with plane or spherical circular faces, exact
volumes are computed by assuming edges are squared up to the larger
of the front and back radial aperture.

For all other elements, approximate volumes are numerically integrated
to 0.1% accuracy. Zero volume means the volume cannot be accurately computed.

Single elements that are duplicated in the Lens Data Editor
for ray tracing purposes may be listed more than once yielding
incorrect total mass estimates.

                             Volume cc   Density g/cc         Mass g
Element surf   1 to   2       0.123345       2.510000       0.309596
Element surf   3 to   4       0.087904       3.050000       0.268108
Total Mass:                                                 0.577704

F/# DATA:

F/# calculations consider vignetting factors and ignore surface apertures.

             Wavelength:       0.486133           0.587562           0.656273    
#                Field       Tan       Sag      Tan       Sag      Tan       Sag
1         0.0000 (deg):   5.0074    5.0074   5.0046    5.0046   5.0071    5.0071
2         1.4000 (deg):   5.0048    5.0063   5.0020    5.0035   5.0045    5.0060
3         2.0000 (deg):   5.0021    5.0051   4.9993    5.0023   5.0018    5.0049

CARDINAL POINTS:

Object space positions are measured with respect to surface 1.
Image space positions are measured with respect to the image surface.
The index in both the object space and image space is considered.

                               Object Space         Image Space
W = 0.486133
Focal Length          :          -49.999223           49.999223
Focal Planes          :          -49.508490            0.000448
Principal Planes      :            0.490733          -49.998775
Anti-Principal Planes :          -99.507713           49.999672
Nodal Planes          :            0.490733          -49.998775
Anti-Nodal Planes     :          -99.507713           49.999672

W = 0.587562(Primary)
Focal Length          :          -50.000000           50.000000
Focal Planes          :          -49.499623           -0.000000
Principal Planes      :            0.500377          -50.000000
Anti-Principal Planes :          -99.499623           50.000000
Nodal Planes          :            0.500377          -50.000000
Anti-Nodal Planes     :          -99.499623           50.000000

W = 0.656273
Focal Length          :          -50.036586           50.036586
Focal Planes          :          -49.532415            0.035740
Principal Planes      :            0.504171          -50.000846
Anti-Principal Planes :          -99.569000           50.072326
Nodal Planes          :            0.504171          -50.000846
Anti-Nodal Planes     :          -99.569000           50.072326

FILES USED:

ZEMAX File
  C:\Users\loomisjs\ZEMAX\doublet\doublet1.ZMX
Session File
  C:\Users\loomisjs\ZEMAX\doublet\doublet1.SES
Glass Catalogs
  C:\Users\loomisjs\Documents\ZEMAX\GLASSCAT\SCHOTT.AGF
Coating Data
  C:\Users\loomisjs\Documents\ZEMAX\COATINGS\COATING.DAT
ABg Data
  C:\Users\loomisjs\Documents\ZEMAX\ABG_DATA\ABG_DATA.DAT

Paraxial Ray Trace Data

Units       : Millimeters
Wavelength  : 0.587562 µm
Coordinates : Local
Paraxial angles are the ratio of the cosines after refraction or reflection from the surface or object.
Angles are in degrees.


Trace of Paraxial Y marginal, U marginal, Y chief, U chief only.

Surf         Y marginal        U marginal             Y chief            U chief Comment
OBJ   0.0000000000E+000  0.0000000000E+000           Infinity  3.4920769492E-002 
  1   5.0000000000E+000 -5.5406927265E-002  0.0000000000E+000  2.3022658688E-002 
  2   4.8891861455E+000 -1.7724241788E-001  4.6045317375E-002  3.4043020479E-002 
  3   4.8714619037E+000 -2.3260222930E-002  4.9449619423E-002  2.0502569311E-002 
  4   4.8482016808E+000 -1.0000000000E-001  6.9952188734E-002  3.4571298725E-002 
  5  -8.8817841970E-016 -1.0000000000E-001  1.7460384746E+000  3.4571298725E-002 

Listing of Aberration Coefficient Data

Wavelength                      :         0.5876 µm
Chief Ray Slope, Object Space   :         0.0349
Chief Ray Slope, Image Space    :         0.0346
Marginal Ray Slope, Object Space:         0.0000
Marginal Ray Slope, Image Space :        -0.1000
Petzval radius                  :       -68.9243
Optical Invariant               :         0.1746

Seidel Aberration Coefficients in Waves:

Surf       W040        W131        W222       W220P        W311        W020        W111
STO    1.027548    0.882624    0.189535    0.143743    0.102436   -3.673978   -1.577904
  2   18.714934   -6.771273    0.612481    0.163024   -0.084892   -7.899741    1.429107
  3  -22.665285    7.972303   -0.701046   -0.211143    0.098780   22.371968   -3.934566
  4    2.960298   -2.170850    0.397983    0.092576   -0.106906  -11.096234    4.068553
IMA    0.000000    0.000000    0.000000    0.000000    0.000000    0.000000    0.000000
TOT    0.037495   -0.087196    0.498953    0.188201    0.009417   -0.297983   -0.014809
OT    0.008812   -0.005123   -0.015370    0.058633    0.022116    0.051432    0.110066    0.000553   -0.035017   -0.000870

Wavefront Aberration Coefficient Summary:

           W040        W131        W222       W220P        W311        W020        W111
TOT      0.0375     -0.0872      0.4990      0.1882      0.0094     -0.2980     -0.0148

          W220S       W220M       W220T
TOT      0.4377      0.6872      0.9366

Chromatic Focal Shift

Ray Fans

Field Curvature/Distortion

Spot Diagrams


Maintained by John Loomis, last updated 1 June 2011