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？ F<b/)<Bm=
一下是我的Prescription Data数据： ^fE8|/]nG9
GENERAL LENS DATA: c]"w0a-`^@
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Surfaces : 3 WM7LCP
Stop : 1 ! F<::fN
System Aperture : Object Space NA = 0.12 mY]o_ \`
Glass Catalogs : Schott s^m`qi( H
Ray Aiming : Paraxial Reference, Cache On !x! 1H5 "
X Pupil shift : 0 K+ ~1z>&
Y Pupil shift : 0 KwgFh#e
Z Pupil shift : 0 x~F YG
Apodization : Gaussian, factor = 1.00000E+000 G
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************************************************************* xVRxKM5 {
Effective Focal Length : 1.639158 (in air at system temperature and pressure) t{,e{oZx
Effective Focal Length : 1.639158 (in image space) <[$a7l i
************************************************************* 7}e5a c
Back Focal Length : -1.061568 ;@
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Total Track : 4.318 w`v` aw]
Image Space F/# : 3.417255 FAX[| p
Paraxial Working F/# : 2.950535 y}?PyPz
Working F/# : 2.961912 4*inN~cU
Image Space NA : 0.1670788 C-g,uARX(r
Object Space NA : 0.12 Yj'"Wg
Stop Radius : 0.2398355 0O>M/ *W
Paraxial Image Height : 0 pE%*r@p4&4
Paraxial Magnification : 0 ^XG$?2<U
Entrance Pupil Diameter : 0.4796709 cP\ZeG#<
Entrance Pupil Position : 0 JeF$ W!!{
Exit Pupil Diameter : 2.511155 @|s$ :;(=
Exit Pupil Position : 7.420935 8 | Ob7+
Field Type : Angle in degrees S9^S W3
Maximum Field : 0 YW"uC\kg|
Primary Wave : 1.31 ouO9%)zv
Lens Units : Millimeters Pz\ByD
Angular Magnification : 0 +3sbpl2}
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Fields : 1 7 U-}Y
Field Type: Angle in degrees p'6XF{
# X-Value Y-Value Weight =yoR>llbBC
1 0.000000 0.000000 1.000000 )l/
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Vignetting Factors :*^aSPlV
# VDX VDY VCX VCY VAN ";7/8(LBZ
1 0.000000 0.000000 0.000000 0.000000 0.000000 r4<As` &
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Wavelengths : 1 \En"=)A
Units: Microns |'I>Ojm
# Value Weight IZ iS3
1 1.310000 1.000000 /t ! 5||G
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CARDINAL POINTS: k~3\0man
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Object space positions are measured with respect to surface 1. 78 ]Kv^l^_
Image space positions are measured with respect to the image surface. ,In%r`{i
The index in both the object space and image space is considered. Fn I}N;"
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Object Space Image Space o 7WAH@g
W = 1.310000 (Primary) $ M/1pZ
************************************************************ +-9-%O.(;
Focal Length : -1.639015 1.639015 |=KzQY|u
************************************************************ _l1"X ^Aa
Focal Planes : 0.313078 -1.159568 =f [/Pv
Principal Planes : 1.952094 -2.798584 w%..*+P
Anti-Principal Planes : -1.325937 0.479447 !m%'aQHH(
Nodal Planes : 1.952094 -2.798584 [h !i{QD
Anti-Nodal Planes : -1.325937 0.479447 q'4P/2)va
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我用*号，标出了需要注意的地方，请高手指教！
