這是 FIR 指令的說明 <94_ @3
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At any conjugate, finite or infinite: $x6$* K(F
EFL – Effective focal length MC,>pR{
BFL – Back focal length +ht| N[P
FFL – Front focal length <|?K%FP7Z
FNO – f/number IHp_A
IMG DIS– Actual image distance (SI-1 to SI) 2Dd|~{%
OAL – Overall length (S1 to SI-1) b~BIz95
ANG – Object space last field angle (in degrees) mA 7m
$F.kK%-*
PARAXIAL IMAGE {_U
Kttp
HT – Height on image surface V]S1X^
?RzD Qy D
ENTRANCE PUPIL M. td^l0
DIA – Diameter 8_K6 0eXz
THI – Distance from S1 to pupil -{
u*qtp
""svDfy$
EXIT PUPIL ,^8 MB.
DIA – Diameter VG qa)ri"
THI – Distance from SI-1 to pupil yFhB>i
_owjTo}
Add at finite conjugates (if applicable): 5(
_6+'0
RED – Reduction ratio P IXL6
FNO – f/number at actual conjugate gN {'UDg
OBJ DIS – Object distance (SO) pb0E@C/R
TT – Total track distance (SO to SI) )~jqW=d
2
vEQ< A<[Z
PARAXIAL IMAGE ?GBkqQ
THI – Paraxial image distance (from SI-1) joul<t-
