公开(公告)号：US07016120B2

公开(公告)日：2006-03-21

申请号：US10406210

申请日：2003-04-04

申请人： Bertram Achtner ,  Jürgen Noffke ,  Dietmar Gängler ,  Elke Schmidt ,  Bo Möller

发明人： Bertram Achtner ,  Jürgen Noffke ,  Dietmar Gängler ,  Elke Schmidt ,  Bo Möller

IPC分类号： G02B15/14

CPC分类号： G02B7/04 ,  G02B13/16

摘要： An objective has a front group, a focus group displaceable along the optical axis and a follow-on lens group having a diaphragm. The front group is arranged at the objective end. The lens group having the diaphragm includes at least two composite lenses and/or two positive lenses and/or the back focus can be adjusted. An objective series is presented wherein all objectives of the series have a uniform appearance and/or the diaphragm is arranged in all objectives proceeding from the image plane at the same location.