這是 FIR 指令的說明 =8X`QUmT
>1`FR w<
At any conjugate, finite or infinite: `x lsvK>
EFL – Effective focal length !X(Lvt/
BFL – Back focal length pL]C]HGv
FFL – Front focal length ;tf1 #6{
FNO – f/number 4HVZ;,q
IMG DIS– Actual image distance (SI-1 to SI) 0 AY23/
OAL – Overall length (S1 to SI-1) S]KcAz( fX
ANG – Object space last field angle (in degrees) 4-eb&
ilw<Q-o4(
PARAXIAL IMAGE wp-5B= #:{
HT – Height on image surface v! E0/
gD
$^ .LZ1Jd
ENTRANCE PUPIL SDcxro|8i
DIA – Diameter .6 !IO^`[
THI – Distance from S1 to pupil C?#if;c
K7F uMB
EXIT PUPIL 9 U>ID{
DIA – Diameter g^NdN46%
THI – Distance from SI-1 to pupil Dw%>y93V
`)` _G!a
Add at finite conjugates (if applicable): F@k Oj*5,[
RED – Reduction ratio *DLv$/(0
FNO – f/number at actual conjugate KZ6}),p
OBJ DIS – Object distance (SO) Cnd*%C PZ
TT – Total track distance (SO to SI) j?jEWreq]~
g (33h2"
PARAXIAL IMAGE *#+d j"
THI – Paraxial image distance (from SI-1) sRE$*^i
