公开(公告)号：EP1494053A4

公开(公告)日：2011-03-16

申请号：EP03715536

申请日：2003-03-27

Applicant: OLYMPUS CORP

Inventor： MIHARA SHINICHI ,  KONISHI HIROKAZU ,  WATANABE MASAHITO ,  ISHII ATSUJIRO ,  TAKEYAMA TETSUHIDE ,  IMAMURA AYAMI ,  HANZAWA TOYOHARU

IPC: G02B13/18 ,  G02B15/167 ,  G02B15/177 ,  G02B15/20

CPC classification number: G02B15/177 ,  G02B5/04

公开(公告)号：JP2011008274A

公开(公告)日：2011-01-13

申请号：JP2010164672

申请日：2010-07-22

Applicant: Olympus Corp ,  オリンパス株式会社

Inventor： MIHARA SHINICHI ,  KONISHI KOICHI ,  HANZAWA TOYOJI ,  WATANABE MASAHITO ,  ISHII ATSUJIRO ,  TAKEYAMA TETSUEI ,  IMAMURA FUMIYOSHI

IPC: G02B15/20 ,  G02B13/00 ,  G02B13/18 ,  G02B15/14 ,  G02B15/167 ,  G03B17/17

CPC classification number: G02B13/0065 ,  G02B13/0045 ,  G02B13/006 ,  G02B13/007 ,  G02B13/0075 ,  G02B13/009 ,  G02B15/14 ,  G02B15/16 ,  H04N5/2253 ,  H04N5/2254 ,  H04N5/23238 ,  H04N5/23296

Abstract: PROBLEM TO BE SOLVED: To provide an electronic imaging apparatus having very small thickness in a depth direction.SOLUTION: The electronic imaging apparatus has an optical path bending zoom optical system which includes, in order from its object side, a first-first group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, and a first-second group G1-2 including one positive lens and a second group G2 having positive refractive power. For varying power from a wide-angle end to a telephoto end, the second group G2 moves only toward the object side. The electronic imaging apparatus also has an electronic imaging element located on the image side of the zoom optical system. In the electronic imaging apparatus, an air-basis length d, on an optical axis from a refracting surface just before the reflecting surface of the reflecting optical element to a refracting surface just after the reflecting surface, satisfies the following condition (a) 0.5

Abstract translation: 要解决的问题：提供一种在深度方向上具有非常小的厚度的电子成像设备。解决方案：电子成像设备具有光路弯曲变焦光学系统，其从物体侧起依次包括第一组G1 -1，包括负透镜组和用于弯曲光路的反射光学元件P，以及包括一个正透镜的第一组G1-2和具有正折光力的第二组G2。 为了从广角端到远摄端的功率变化，第二组G2仅向物体侧移动。 电子成像装置还具有位于变焦光学系统的像侧的电子成像元件。 在电子摄像装置中，从刚好在反射光学元件的反射面到反射面之后的折射面的折射面的光轴上的空气基长度d满足以下条件（a）0.5 < d / L <2.1 {其中L是电子成像元件上的有效成像区域的对角线长度）。