ZEMAX中priscription data会给出系统的许多有用的数据，其中包括effective focal length的数据和主平面位置的数据。但是我发现直接给出的effective focal length数据和根据其定义结合主平面的数据算出来的结果不一致，这时怎么回事？ eSSv8 [u
一下是我的Prescription Data数据： ZRYHsl{F+
GENERAL LENS DATA: FD^s5>"Y+
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Surfaces : 3 *%QTv3{
Stop : 1 Es+BV+x[.c
System Aperture : Object Space NA = 0.12 G=>LW1E|
Glass Catalogs : Schott vUg o)C #<
Ray Aiming : Paraxial Reference, Cache On CQ#%v%
X Pupil shift : 0 tSq`_[@
Y Pupil shift : 0 =)2!qoE
Z Pupil shift : 0 X- 5&c$hv
Apodization : Gaussian, factor = 1.00000E+000 +WSM< S2 U
************************************************************* ;%Zn)etu
Effective Focal Length : 1.639158 (in air at system temperature and pressure) ]|/\Sd
Effective Focal Length : 1.639158 (in image space) v,mn=Q&9
************************************************************* _" sFLe{
Back Focal Length : -1.061568 x2z%J,z@4
Total Track : 4.318 k&3'[&$I*,
Image Space F/# : 3.417255 Sv03="&
Paraxial Working F/# : 2.950535 EXT_x q
Working F/# : 2.961912 9h'klaE(
Image Space NA : 0.1670788 z_en .
Object Space NA : 0.12 !e:HE/&>i
Stop Radius : 0.2398355 t 5
Paraxial Image Height : 0 <utD&D8w
Paraxial Magnification : 0 QP4`r#,
Entrance Pupil Diameter : 0.4796709 wvNddu>@
Entrance Pupil Position : 0 %/=#8v4*
Exit Pupil Diameter : 2.511155 BW%"]J
Exit Pupil Position : 7.420935 [&p^h
Field Type : Angle in degrees vq *)2.
Maximum Field : 0 &B>YiA
Primary Wave : 1.31 Q2k y|
Lens Units : Millimeters ZYD3[" ~x
Angular Magnification : 0 r!J?Lc])8
kDr0D$iE
Fields : 1 N;d@)h(N!
Field Type: Angle in degrees t /CE ,DQ
# X-Value Y-Value Weight 7 = x]p
1 0.000000 0.000000 1.000000 gDjs:]/YR
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Vignetting Factors 6z80Y*|eJ
# VDX VDY VCX VCY VAN p*Hbc|?{Q&
1 0.000000 0.000000 0.000000 0.000000 0.000000 Z CS{D
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Wavelengths : 1 (3+:/,{'$
Units: Microns ckPI^0A!
# Value Weight _<1uO=km6
1 1.310000 1.000000 U m9]X@z
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CARDINAL POINTS: f,}]h~w\
@( H
Object space positions are measured with respect to surface 1. Qs.g%
Image space positions are measured with respect to the image surface. -wjvD8fL
The index in both the object space and image space is considered. _oJq32
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Object Space Image Space tJ,x>s?Y
W = 1.310000 (Primary) G(XI TL u*
************************************************************
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Focal Length : -1.639015 1.639015 #7~M1/eH=t
************************************************************ ;Y>c egG\
Focal Planes : 0.313078 -1.159568 (C
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Principal Planes : 1.952094 -2.798584 Ge]2g0
Anti-Principal Planes : -1.325937 0.479447 '9MtIcNb
Nodal Planes : 1.952094 -2.798584 :D'#CoBA
Anti-Nodal Planes : -1.325937 0.479447 E)dV;1t
h[0,/`qb{
我用*号，标出了需要注意的地方，请高手指教！
