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？ g=)OcTd#
一下是我的Prescription Data数据： 3I.0jA#T&/
GENERAL LENS DATA: p *5QV
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Surfaces : 3 BTAt9Z8qK
Stop : 1 cME|Lg(J$
System Aperture : Object Space NA = 0.12 sogdM{tz\
Glass Catalogs : Schott {4^NZTjd@
Ray Aiming : Paraxial Reference, Cache On [yn\O=%5
X Pupil shift : 0 x;@wtd*QB
Y Pupil shift : 0 K*sav?c
Z Pupil shift : 0 HOSt0IHzty
Apodization : Gaussian, factor = 1.00000E+000 rUxjm\
************************************************************* GC3WB4iY@U
Effective Focal Length : 1.639158 (in air at system temperature and pressure) &$NYZ3?9
Effective Focal Length : 1.639158 (in image space) |)[I$]L
************************************************************* #]5A|-O^
Back Focal Length : -1.061568 ;k fl5
Total Track : 4.318 ; %a
Image Space F/# : 3.417255 (CR]96n
Paraxial Working F/# : 2.950535 < .knM
Working F/# : 2.961912 Y9r##r+
Image Space NA : 0.1670788 0@LC8Bz+'
Object Space NA : 0.12 `P
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Stop Radius : 0.2398355 u.rFZu?E\
Paraxial Image Height : 0 # <o=W#[
Paraxial Magnification : 0 aESlb H
Entrance Pupil Diameter : 0.4796709 qx f8f
Entrance Pupil Position : 0 r>_40+ |&
Exit Pupil Diameter : 2.511155 WvN{f*
Exit Pupil Position : 7.420935 z XZXp~7)
Field Type : Angle in degrees pZ)N,O3
Maximum Field : 0 OSY.$$IO
Primary Wave : 1.31 ?8-ho0f0
Lens Units : Millimeters K:L_y 1!T
Angular Magnification : 0 H~<w*[uT
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Fields : 1 Msst:}QY
Field Type: Angle in degrees #t<
# X-Value Y-Value Weight QruclNW{Bv
1 0.000000 0.000000 1.000000 P<C=9@`!
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Vignetting Factors sIzy/W0iV
# VDX VDY VCX VCY VAN ^R h`XE
1 0.000000 0.000000 0.000000 0.000000 0.000000 vX}#wDNP
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Wavelengths : 1 & HB!6T/
Units: Microns 5*\ ]F}
# Value Weight 3,^.
1 1.310000 1.000000 1" S~#
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CARDINAL POINTS: C17$ qdV/
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Object space positions are measured with respect to surface 1. w `_"R6
Image space positions are measured with respect to the image surface. /2>.*H_2
The index in both the object space and image space is considered. ksy]t |
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Object Space Image Space a\B'Qe+
W = 1.310000 (Primary) E RjMe'q4
************************************************************
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Focal Length : -1.639015 1.639015 Vb,'VN%
************************************************************ o@[oI\Vr!
Focal Planes : 0.313078 -1.159568 a`6R}|ZB
Principal Planes : 1.952094 -2.798584 ,FL *Z9wA
Anti-Principal Planes : -1.325937 0.479447 ;5tQV%V^Q
Nodal Planes : 1.952094 -2.798584 +'9E4Lpx
Anti-Nodal Planes : -1.325937 0.479447 "0aJE1) p:
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我用*号，标出了需要注意的地方，请高手指教！
