(1) 總長67mm,倍率-8,以薄透鏡求解,焦距=67/(2+8+0.125)=6.617mm \kC'y9k
\qB.>f"%p|
(2) 物距=6.617*1.125=7.44mm<10mm,像距=6.617*9=59.55mm>33mm saVX2j6Y
所以需為telephoto型式(+ -) (kSb74*g
(T =u_oe
(3) 再設+ 透鏡焦距為f1,- 透鏡焦距為f2,兩鏡片間隔為d=67-33-10=24 lO8GnkLE
以(1/f1)+(1/f2)-d/(f1*f2)=1/6.617 及 (1-d*(1/f1))*6.617 =33 Gn 1
求解f1和f2即可