| qlmi |
2006-08-10 13:34 |
关于Effective focal length的问题
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？ $q Zc!Qc
一下是我的Prescription Data数据： nc3sty1`
GENERAL LENS DATA: vOos*&
(NGu9uJs
Surfaces : 3 p yUNRqp
Stop : 1 k_,MoDz
System Aperture : Object Space NA = 0.12 <U@P=G< t
Glass Catalogs : Schott >;&Gz-lm
Ray Aiming : Paraxial Reference, Cache On ?j1_
n,d
X Pupil shift : 0 DRH'A!r!
Y Pupil shift : 0 t9G}Yd[T
Z Pupil shift : 0 6BDt.bG
Apodization : Gaussian, factor = 1.00000E+000 u~" siH
*************************************************************
uY.=4l
Effective Focal Length : 1.639158 (in air at system temperature and pressure) EoKC8/
Effective Focal Length : 1.639158 (in image space) m! rwG(
************************************************************* mgy"|\]
Back Focal Length : -1.061568 Q Oz9\,C
Total Track : 4.318 3LKB ;
Image Space F/# : 3.417255 <A)+|Y"^h6
Paraxial Working F/# : 2.950535 .qS Bh
hH\
Working F/# : 2.961912 ; knd7SC
Image Space NA : 0.1670788 _Ny8j~
Object Space NA : 0.12 ; ( K
Stop Radius : 0.2398355 uA~YRKer
Paraxial Image Height : 0 -@rxiC:Q
Paraxial Magnification : 0 ?3`q+[:
Entrance Pupil Diameter : 0.4796709 sa_R$ /H
Entrance Pupil Position : 0 CV s8s
Exit Pupil Diameter : 2.511155 fs&,w
Exit Pupil Position : 7.420935 >Z *iE"9"
Field Type : Angle in degrees DKh}Y
!Q=:
Maximum Field : 0
#;d)?
Primary Wave : 1.31 _)Qy4[S=d
Lens Units : Millimeters N6h1|_o
Angular Magnification : 0 IQT cYl
pFpZb U^
Fields : 1 Am= wEu[b
Field Type: Angle in degrees wDDx j
# X-Value Y-Value Weight <D;MT96SG
1 0.000000 0.000000 1.000000 w TlGJ$D0
NjbwGcH%\
Vignetting Factors 'V&2Xvl%
# VDX VDY VCX VCY VAN ,E&Bn8L~ O
1 0.000000 0.000000 0.000000 0.000000 0.000000 NUMi])HkN
;;@IfZ ?j
Wavelengths : 1 So#dJ>
Units: Microns 9SY(EL
# Value Weight NH'iR!iGo
1 1.310000 1.000000 6 _*! |g
gA_krK ,Z
CARDINAL POINTS: s|Zx(.EP
jPnO@ H1
Object space positions are measured with respect to surface 1. P<u"97@8a
Image space positions are measured with respect to the image surface. @44P4?;
The index in both the object space and image space is considered. p'&*r2_ram
eZNi tGaU
Object Space Image Space ;`kWpM;
W = 1.310000 (Primary) 2/@D7>F&g
************************************************************ _9NVE|c;
Focal Length : -1.639015 1.639015 0qv$:w)g+v
************************************************************ =<{ RX8
Focal Planes : 0.313078 -1.159568 >!}`%pk(
Principal Planes : 1.952094 -2.798584 #XI"@pD
Anti-Principal Planes : -1.325937 0.479447 O6iCZ
Nodal Planes : 1.952094 -2.798584 YdI0E
Anti-Nodal Planes : -1.325937 0.479447 khAqYu" )
8%[HYgd5)
我用*号，标出了需要注意的地方，请高手指教！
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