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? jW-j+WGSM
一下是我的Prescription Data数据: ceu}Lp^%/
GENERAL LENS DATA: &G>EBKn\2`
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Surfaces : 3 kGZ_/"iuO
Stop : 1 Gv,0{DVX<
System Aperture : Object Space NA = 0.12 S6sw)
Glass Catalogs : Schott U-#t&yjh#
Ray Aiming : Paraxial Reference, Cache On o(/(`/
X Pupil shift : 0 ;=.QT
Y Pupil shift : 0 n_n0Q}du
Z Pupil shift : 0 {&Fh$H!
Apodization : Gaussian, factor = 1.00000E+000 %q@eCN
************************************************************* [[P UK{P0
Effective Focal Length : 1.639158 (in air at system temperature and pressure) wxg`[c$:
Effective Focal Length : 1.639158 (in image space) |WB<yA1
************************************************************* [z:bnS~yiD
Back Focal Length : -1.061568 QJ
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Total Track : 4.318 q(Y<cJ?X
Image Space F/# : 3.417255 o2 5kFD
Paraxial Working F/# : 2.950535 VT\o=3_
Working F/# : 2.961912 w
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Image Space NA : 0.1670788
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Object Space NA : 0.12 X"W%(x`w
Stop Radius : 0.2398355 kQ$Q}3f
Paraxial Image Height : 0 .d5|Fs~B
Paraxial Magnification : 0 ~7!J/LHg
Entrance Pupil Diameter : 0.4796709 +SmcZ^\OZ
Entrance Pupil Position : 0 zJ#e3o .
Exit Pupil Diameter : 2.511155 1@Bq-2OD4
Exit Pupil Position : 7.420935 >,` /
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Field Type : Angle in degrees 'r%`(Z{~
Maximum Field : 0 <4y1[/S
Primary Wave : 1.31 }B_n}<tjD
Lens Units : Millimeters KLXv?4!
Angular Magnification : 0 hltH{4
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Fields : 1 )Xa`LG=|
Field Type: Angle in degrees !UD62yw~
# X-Value Y-Value Weight 1{% EQhNd
1 0.000000 0.000000 1.000000 yg "u^*r&
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Vignetting Factors ";j/k9DE
# VDX VDY VCX VCY VAN 2C %{A
1 0.000000 0.000000 0.000000 0.000000 0.000000 J[UL
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Wavelengths : 1 :x97^.eW~
Units: Microns .b vB8VOrW
# Value Weight ASAz<H$
1 1.310000 1.000000 Q/iaxY#
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CARDINAL POINTS: TD,W *(b
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Object space positions are measured with respect to surface 1. K/G|MT)
Image space positions are measured with respect to the image surface. N40.GL0s
The index in both the object space and image space is considered. fL"-K
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Object Space Image Space zb~!>
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W = 1.310000 (Primary) W)V"QrFK
************************************************************ !l_1r$
Focal Length : -1.639015 1.639015 G3 #c
************************************************************ !:`QX\Ux
Focal Planes : 0.313078 -1.159568 GFx>xQk
Principal Planes : 1.952094 -2.798584 l{aXX[E&1
Anti-Principal Planes : -1.325937 0.479447 0<Px2/
Nodal Planes : 1.952094 -2.798584 Rs8`M8(4%
Anti-Nodal Planes : -1.325937 0.479447 j0o_``
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我用*号,标出了需要注意的地方,请高手指教!