公开(公告)号：US06968127B2

公开(公告)日：2005-11-22

申请号：US09940582

申请日：2001-08-29

申请人： Tsuguo Nanjyo

发明人： Tsuguo Nanjyo

IPC分类号： A61B3/14 ,  A61B3/12 ,  A61B3/15 ,  G03B29/00

CPC分类号： A61B3/12 ,  A61B3/152

摘要： A fundus camera being capable of moving a fixation target surely and precisely to a position intended for photographing with an adequate degree of freedom for moving the fixation target. The fundus camera is provided with an observation optical system having an objective lens and a photographing element for photographing a fundus illuminated with illumination light, a monitor on which an image of the photographed fundus is displayed, a fixation-target presenting optical system for presenting a fixation target via the objective lens, a fixation-target moving unit by which a position to present the fixation target is shifted to a desired position, a first display-control unit by which the position of the fixation target is superposed on the fundus image to be displayed on the monitor, and a second display-control unit by which a guide target for moving the fixation target is displayed in a predetermined position on the monitor.

摘要翻译： 一种眼底照相机能够将固定目标确实地精确地移动到用于移动定影目标的足够自由度的用于拍摄的位置。 眼底照相机设置有具有物镜的观察光学系统和用于拍摄照明光照明的眼底的拍摄元件，显示拍摄的眼底的图像的监视器，用于呈现照相机的定影目标呈现光学系统 通过物镜固定目标，通过该固定目标移动单元将呈现固定目标的位置移动到期望位置;第一显示控制单元，通过该第一显示控制单元将定影目标的位置叠加在眼底图像上， 显示在监视器上，第二显示控制单元，用于将定影目标移动的引导目标显示在监视器上的预定位置。

公开(公告)号：US06669339B2

公开(公告)日：2003-12-30

申请号：US09813019

申请日：2001-03-21

申请人： Tsuguo Nanjyo

发明人： Tsuguo Nanjyo

IPC分类号： A61B314

CPC分类号： A61B3/12 ,  A61B3/145

摘要： A fundus camera having a simplified unit mechanism having a fixation light disposed at a suitable position for efficiently guiding a sight line, the fundus camera comprising an illumination optical system for illuminating a fundus of an eye to be examined with visible illumination light for photographing and with invisible illumination light for observation, a photographing optical system having a first photographic element, for photographing an image of the fundus with visible reflection light from the fundus, an observation optical system having a second photographic element for photographing the image of the fundus with invisible reflection light from the fundus, a wavelength-selecting mirror dividing light into invisible light, a part of visible light, and most of the visible light, a light-dividing member further dividing the optical path of the observation optical system, and a fixation target disposed on the optical path divided from the optical path of the observation optical system by the light-dividing member and at a conjugate position with a photographing surface of the second photographic element.

摘要翻译： 一种具有简化的单元机构的眼底照相机，其具有设置在适当位置以有效地引导视线的定影光，所述眼底照相机包括照明光学系统，用于照明用于拍摄的可见照明光和待观察的眼睛的眼底， 用于观察的不可见的照明光，具有第一照相元件的摄影光学系统，用于用来自眼底的可见反射光拍摄眼底的图像;观察光学系统，具有用于以不可见的反射拍摄眼底的图像的第二摄影元件 来自眼底的光，将光分成不可见光的波长选择镜，可见光的一部分和可见光的大部分，进一步分割观察光学系统的光路的分光部件和设置 在从观察光学的光学路径划分的光路上 并且在与第二照相元件的拍摄表面共轭的位置处。

公开(公告)号：US06574432B2

公开(公告)日：2003-06-03

申请号：US09813159

申请日：2001-03-21

申请人： Tsuguo Nanjyo

发明人： Tsuguo Nanjyo

IPC分类号： G03B2900

CPC分类号： A61B3/12

摘要： A fundus camera according to the present invention is capable of facilitating observation, color photographing and fluorescent photographing without complicating operations and components of the device. The fundus camera is provided with a first illumination optical system for illuminating a fundus of an eye to be examined with infrared light for observation, a second illumination optical system for illuminating the fundus of the eye with visible light for photographing, a photographing optical system for photographing an image of the fundus with visible reflection light,from the fundus, and an observation optical system for observing the fundus in the infrared reflection light from the fundus. The observation optical system includes an optical path shared with the photographing optical system and an optical path branched from the optical path of the photographing optical system by a first wavelength-selecting mirror. At least the photographing optical system is provided with a barrier filter which cuts off visible illumination light for fluorescence excitation and which transmits fluorescence from the fundus. The first illumination optical system includes the first illumination source. The second illumination optical system includes the second illumination source and an exciter filter for visible fluorescent excitation disposed in an optical path. The photographing optical system includes a photographing element.

摘要翻译： 根据本发明的眼底照相机能够便于观察，彩色摄影和荧光照相，而不会使装置的操作和部件复杂化。 眼底照相机设置有用于用用于观察的红外光照射要检查的眼睛的眼底的第一照明光学系统，用于拍摄用可见光照射眼睛的眼底的第二照明光学系统，用于拍摄的可见光的照明光学系统， 用可见光反射光从眼底拍摄眼底的图像，以及用于观察来自眼底的红外反射光中的眼底的观察光学系统。 观察光学系统包括与拍摄光学系统共享的光路和由第一波长选择镜从拍摄光学系统的光路分支的光路。 至少拍摄光学系统设置有屏障滤光片，该屏障滤光片切断用于荧光激发的可见照明光，并从眼底透射荧光。 第一照明光学系统包括第一照明光源。 第二照明光学系统包括第二照明源和设置在光路中的用于可见荧光激励的激发器滤光器。 拍摄光学系统包括拍摄元件。