公开(公告)号：EP3358388A1

公开(公告)日：2018-08-08

申请号：EP16851441.2

申请日：2016-09-26

申请人： Olympus Corporation

发明人： MORITA Kazuo

IPC分类号： G02B23/26 ,  A61B1/00 ,  G02B17/04

CPC分类号： A61B1/0684 ,  A61B1/00096 ,  A61B1/0653 ,  A61B1/0669 ,  A61B1/07 ,  G02B17/04 ,  G02B23/10 ,  G02B23/243 ,  G02B23/2469 ,  G02B23/26

摘要： There is provided an endoscope illuminating optical system and an endoscope optical system unit which enable to change a direction of irradiation of illumination light to two directions, without bending an endoscope even in a narrow space.
In an endoscope illuminating optical system 10 includes a light-emitting section 11 and a first optical-path deflecting prism group PG1 which takes in illumination light emitted from the light-emitting section 11, and irradiates light to an subject upon deflecting an optical path, the first optical-path deflecting prism group PG1 includes three prisms in order from a subject side which are, a first prism P1, a second prism P2, and a third prism P3, and the first prism P1, the second prism P2, and the third prism P3 are disposed to be mutually adjacent, and a direction of irradiation A of the illumination light is let to be variable to a first direction DR1 by rotationally moving the first prism P1 with respect to the second prism P2, and the direction of irradiation A of the illumination light is let to be variable to a second direction DR2 which differs from the first direction DR1, by rotationally moving the first prism P1 and the second prism P2 integrally with respect to the third prism P3.

公开(公告)号：EP3329832A1

公开(公告)日：2018-06-06

申请号：EP16830231.3

申请日：2016-07-01

申请人： Olympus Corporation

发明人： KATO Takayuki ,  TOMIOKA Makoto ,  INOUE Takahiro ,  MORITA Kazuo

IPC分类号： A61B1/04 ,  A61B1/00

CPC分类号： A61B1/051 ,  A61B1/00096 ,  A61B1/00165 ,  A61B1/00186 ,  A61B1/00188 ,  A61B1/042 ,  A61B1/043 ,  A61B1/045 ,  A61B1/055

摘要： There is provided a camera head for endoscope which enables to achieve a favorable fluorescent image in any wavelength band when the observation is switched over from a normal white-light image observation to an observation of fluorescent images of different wavelength bands.
The camera head for endoscope includes a camera-head optical system LS which includes a spectral prism 10 having a dichroic film 13 which splits light from the endoscope into white light and fluorescent light, and a first image pickup element 14 and a second image pickup element 15 which are disposed in respective optical paths split into two by the spectral prism 10, and the first image pickup element 14 is for the white-light image observation in which a white-light image is captured, and the second image pickup element is for a fluorescent-image observation in which two fluorescent images of different wavelengths are captured, and the first image pickup element 14 is disposed at a position at which an image is formed in an optical path for the white-light image observation, and the second image pickup element 15 is disposed at a position between two positions at which the two fluorescent images are formed in an optical path for the fluorescent-mage observation, and the camera head for endoscope satisfies the following conditional expression (1). d ≤ 9 × P × Fno