公开(公告)号：US4810083A

公开(公告)日：1989-03-07

申请号：US188380

申请日：1988-04-29

申请人： Kohichi Okada ,  Kazutoshi Takagi

发明人： Kohichi Okada ,  Kazutoshi Takagi

IPC分类号： G02B21/22 ,  A61B3/13 ,  G02B7/12 ,  G02B25/00 ,  A61B3/10

CPC分类号： A61B3/132

摘要： The invention provides a binocular indirect ophthalmoscope in which light reflected from an eye under test is split and guided to left and right oculars (7, 8). Left and right mirrors (10, 11) for directing the split light to the left and right oculars being laterally movable about the optical axes (01, 02) of the oculars and toward and away from each other. The mirrors are arranged to follow the mutual approaching and receding of the oculars but the oculars will not follow the mutual approaching and receding of the mirrors, whereby the distance between these mirrors can be adjusted separately from the distance between the optical axes of the oculars.Such arrangement allows the operator to shift the light beams for observation (OFL, OFR) to appropriate positions where they are not interrupted by the iris, and thus allows sufficient and widely ranging stereoscopic observation, irrespective of the size of the pupil diameter of the eye under test or OF the direction of observation. Further, the distance between the oculars can easily and rapidly be adjusted for adaptation to different operators having different eye-to-eye distances.

摘要翻译： 本发明提供了一种双眼间接检眼镜，其中从被测眼睛反射的光被分割并被引导到左眼和右眼（7,8）。 用于将分离的光引导到左眼和右眼的左右镜（10,11）能够围绕眼睛的光轴（01,02）横向移动并且朝向和远离彼此。 镜子被设置成跟随眼睛的相互接近和后退，但是眼睛不会跟随镜子的相互接近和后退，从而可以与眼睛的光轴之间的距离分开地调节这些镜子之间的距离。 这样的布置允许操作者将用于观察的光束（OFL，OFR）移动到其不被虹膜中断的适当位置，并且因此允许足够且广泛范围的立体观察，而与眼睛的瞳孔直径的大小无关 被测试或观察方向。 此外，可以容易且快速地调整眼睛之间的距离，以适应具有不同眼睛间距离的不同操作者。