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    • 58. 发明授权
    • Optical system for a fundus camera
    • 眼底相机的光学系统
    • US08066374B2
    • 2011-11-29
    • US12520010
    • 2007-12-18
    • Ingo KoschmiederManfred DickDetlef BiernatJan BuchheisterLothar Mueller
    • Ingo KoschmiederManfred DickDetlef BiernatJan BuchheisterLothar Mueller
    • A61B3/14A61B3/10
    • A61B3/156G02B17/0621G02B17/086
    • The invention is directed to an optical system for a fundus camera for reflection-free opthalmoscopy having a beam path with refractive and reflective optical elements which are used substantially in common for illumination and observation or recording. An imaging mirror system substantially comprising a plurality of reflecting optical elements in the form of mirrors and is provided for illuminating and imaging the fundus. At least one optical element, for example, mirror, is formed as a freeform mirror with an imaging, reflecting freeform surface. The optical elements are arranged in a housing in a precisely defined position and attitude relative to one another in such a way that an imaging of the reflecting surfaces of the optical elements on the image of the imaged retina is prevented within a wide diopter range of the patient's eye to be examined.
    • 本发明涉及一种用于无反射眼镜检查的眼底照相机的光学系统,其具有折射和反射光学元件的光束路径,其基本上共同用于照明和观察或记录。 一种成像镜系统,其基本上包括反射镜形式的多个反射光学元件,并且被提供用于照射和成像眼底。 至少一个光学元件,例如镜子,被形成为具有成像反射自由曲面的自由曲面镜。 光学元件以相对于彼此的精确限定的位置和姿态布置在壳体中,使得在成像的视网膜的图像上的光学元件的反射表面的成像被防止在宽的屈光度范围内 患者眼睛要检查。