| 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？ ,-6Oma
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一下是我的Prescription Data数据： s&$?m [w
GENERAL LENS DATA: r D}g9?ut
S/E&&{`ls
Surfaces : 3 Z :{|
?4
Stop : 1 v]cw})l
System Aperture : Object Space NA = 0.12 J.UNw8z
Glass Catalogs : Schott n.@HT"
Ray Aiming : Paraxial Reference, Cache On `W x|
4
X Pupil shift : 0 ?;l@yx
Y Pupil shift : 0 8 c) eaDu
Z Pupil shift : 0 UV2W~g
Apodization : Gaussian, factor = 1.00000E+000 ,NGHv?.N
************************************************************* ?-j/X6(\(
Effective Focal Length : 1.639158 (in air at system temperature and pressure) `"=Hk@E
Effective Focal Length : 1.639158 (in image space) 7{<v$g$
************************************************************* <{W{
Y\_A>
Back Focal Length : -1.061568 q|ce7HnK
Total Track : 4.318 +mrLMbBiD
Image Space F/# : 3.417255 ;n't :yQW
Paraxial Working F/# : 2.950535 {<{VJGY7T
Working F/# : 2.961912 p<r^{y
Image Space NA : 0.1670788 o<5`uV!f
Object Space NA : 0.12 ?;RY/[IX6
Stop Radius : 0.2398355 OkC.e')Vx
Paraxial Image Height : 0 I7_lKr3
Paraxial Magnification : 0 byI"
?
Entrance Pupil Diameter : 0.4796709 B :%Vq2`
Entrance Pupil Position : 0 \l g
^rfj
Exit Pupil Diameter : 2.511155 )Ra:s>
Exit Pupil Position : 7.420935 Mst%]@TG
Field Type : Angle in degrees
P7w
RX F{
Maximum Field : 0 P6_Hz!vE
Primary Wave : 1.31 frcX 'M}%
Lens Units : Millimeters -L/%2 X
Angular Magnification : 0 N7s0Ua'-v
IFBt#]l0
Fields : 1 6 ZRc|ZQ
Field Type: Angle in degrees `i.f m1I ]
# X-Value Y-Value Weight e \X[\ve
1 0.000000 0.000000 1.000000 p
l^;'|=M
KH,f'`
Vignetting Factors &vmk!wA s
# VDX VDY VCX VCY VAN lZAGoR;0Ra
1 0.000000 0.000000 0.000000 0.000000 0.000000 5=V"tQ&d9U
%ap]\o$^4
Wavelengths : 1 ,<Cl^ ^a,
Units: Microns >\K=)/W2
# Value Weight N&G'i.w/
1 1.310000 1.000000 v/
Ge+o0K
~2>A dp
CARDINAL POINTS: o1#3A
Ar\fA)UQ`
Object space positions are measured with respect to surface 1. `]65&hWZL
Image space positions are measured with respect to the image surface. '|g smO
The index in both the object space and image space is considered. N/F_,>E
N?m)u,6-l
Object Space Image Space mW]dhY 3X
W = 1.310000 (Primary) KGOhoiR9:C
************************************************************ l1]N&jN{
Focal Length : -1.639015 1.639015 6)sKg{H
************************************************************ U~=?I)Ni
Focal Planes : 0.313078 -1.159568 FV9{u[3m
Principal Planes : 1.952094 -2.798584 "<|KR{/+
Anti-Principal Planes : -1.325937 0.479447 +F NGRL
Nodal Planes : 1.952094 -2.798584 8{0XqE~ix=
Anti-Nodal Planes : -1.325937 0.479447 8qkQ*uJP
h<LS`$PK;E
我用*号，标出了需要注意的地方，请高手指教！
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