| 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？ hQet?*diU
一下是我的Prescription Data数据： 49kY]z|"w
GENERAL LENS DATA: u>? VD%
`o*eL Lk
Surfaces : 3 ]k KsGch
Stop : 1 /aPq9B@
System Aperture : Object Space NA = 0.12 CRqa[boU*
Glass Catalogs : Schott X G^
Ray Aiming : Paraxial Reference, Cache On YWdlE7 y
X Pupil shift : 0 4a646jg)
Y Pupil shift : 0 f'.yM*
Z Pupil shift : 0 ipyO&v
Apodization : Gaussian, factor = 1.00000E+000 )O+9 v} 2
************************************************************* \NSwoP
Effective Focal Length : 1.639158 (in air at system temperature and pressure) >i ~zG6H
Effective Focal Length : 1.639158 (in image space) -51L!x}1c
************************************************************* Em?skUnG,
Back Focal Length : -1.061568 ~O|0.)71]
Total Track : 4.318 97&6i TYA
Image Space F/# : 3.417255 [ z&y]~
Paraxial Working F/# : 2.950535 8t7hN?,t
Working F/# : 2.961912 *J s<VR
Image Space NA : 0.1670788 #".{i+3E
Object Space NA : 0.12 r%a$u%)oD
Stop Radius : 0.2398355 xGH% 4J\
Paraxial Image Height : 0 ?IWLl
Paraxial Magnification : 0 i &KbzOY
Entrance Pupil Diameter : 0.4796709 XH*^#c
Entrance Pupil Position : 0 mee-Qq:}
Exit Pupil Diameter : 2.511155 n/ 8fv~zU
Exit Pupil Position : 7.420935 o^NQ]BdH8
Field Type : Angle in degrees tN0>5'/
Maximum Field : 0 m[7a~-3:J
Primary Wave : 1.31 N0Y!
Lens Units : Millimeters . = +7H`A
Angular Magnification : 0 Q{a!D0;4v
@z,'IW74V
Fields : 1 kOc'@;_O
Field Type: Angle in degrees '- ~86Q
# X-Value Y-Value Weight F 4h EfO3
1 0.000000 0.000000 1.000000 !6}Cs3.
4 IHl'*D[#
Vignetting Factors ^:q(ksssY
# VDX VDY VCX VCY VAN +Rvj]vd}&
1 0.000000 0.000000 0.000000 0.000000 0.000000 !Zwl9DX3
&0l Nj@/
Wavelengths : 1 XR&*g1
Units: Microns 9QYU
J
# Value Weight ruW6cvsvet
1 1.310000 1.000000 yQW\0&a$
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CARDINAL POINTS: DU tpd|
[|>.iH X
Object space positions are measured with respect to surface 1. L%<1C \k
Image space positions are measured with respect to the image surface. 6` s[PKP.
The index in both the object space and image space is considered. ^aC[Z P:
?+!KucTF
Object Space Image Space l)|CPSN?w
W = 1.310000 (Primary) -cW5 v
************************************************************ WV6vM()#!C
Focal Length : -1.639015 1.639015 'X?`+2wK
************************************************************ '=ZE*nGC
Focal Planes : 0.313078 -1.159568 -g>2 7EI5
Principal Planes : 1.952094 -2.798584 >i.+v[)#
Anti-Principal Planes : -1.325937 0.479447 6lhVwgy3A
Nodal Planes : 1.952094 -2.798584 e (f)?H
Anti-Nodal Planes : -1.325937 0.479447 h>n;A>k@N
RWoiV10
我用*号，标出了需要注意的地方，请高手指教！
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