光学系及びそれを用いた内視鏡

• 收藏
• 分享

专利权人:

オリンパス株式会社

发明人:

研野 孝吉

申请号：

JP2007155157

公开号：

JP5030675B2

申请日:

2007.06.12

申请国别(地区):

JP

年份:

2012

代理人:

摘要：

PROBLEM TO BE SOLVED: To provide an optical system which is capable of imaging both of an object point on a rotation symmetrical axis and an omnidirectional image in the direction substantially vertical to the center axis simultaneously onto one image pickup device with a simple constitution, is miniaturized and is inexpensive, and to provide an endoscope using the optical system.

SOLUTION: A luminous flux made incident on a front group Gf in the order of forward ray tracing, on a side view optical path A, has such an optical path of substantially Z shape as to enter a transparent medium L2 through a first transmission surface 21, be reflected on a first reflection surface 22 to the side opposite to an image face 5, be reflected on a second reflection surface 23 to the side of the image face 5 and outgo to the image face side from the transparent medium L2 through a second transmission surface 24. The luminous flux made incident, on a direct view optical path B, has such an optical path as to enter the transparent medium L2 through a third transmission surface 25 and outgo to the image face 5 side from the transparent medium L2 through a fourth transmission surface 26. Therein, when a light ray passing through the center of an opening S is the central principal light ray Lc, the central principal light ray Lc entering the first transmission surface 21 is inclined to the image face side from a line vertical to the center axis 2.

COPYRIGHT: (C)2009,JPO&INPIT

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/