Title:
LIGHT SOURCE OPTICAL SYSTEM
Document Type and Number:
Japanese Patent JP2013174905
Kind Code:
A
Abstract:
To provide an endoscope light source optical system capable of handling respective observation methods, preventing enlargement of a light source device and securing brightness.
A light source optical system guiding light from a light source 1 to a light guide 6 includes a lighting control means 13 having an optical image surface and a pupil surface arranged outside a conjugate surface for them for carrying out light control by eclipsing a flux and color subtracting lens 2a for suppressing coloring of the flux on a plane with a light control means 13 arranged on the plane. In this case, the color subtracting lens 2a, a condenser lens 2b and a positive lens group are arranged in this order from a light source side.
Inventors:
UNO KANAE
HANANO KAZUNARI
HANANO KAZUNARI
Application Number:
JP2013089903A
Publication Date:
September 05, 2013
Filing Date:
April 23, 2013
Export Citation:
Assignee:
OLYMPUS MEDICAL SYSTEMS CORP
International Classes:
G02B13/00; A61B1/06; G02B13/18; G02B19/00; G02B23/26
Domestic Patent References:
| JP2003325447A | 2003-11-18 | |||
| JP2002065602A | 2002-03-05 | |||
| JP2002092926A | 2002-03-29 | |||
| JPH03155515A | 1991-07-03 | |||
| JP2826315B2 | 1998-11-18 | |||
| JPH03118509A | 1991-05-21 |
Attorney, Agent or Firm:
Hiroshi Nagisawa
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Akira Yonezawa
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Akira Yonezawa