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Retinoscope with condensing lens column

机译:带有聚光镜柱的检影镜

摘要

A retinoscope for detecting eye ametropia and astigmatism axes is disclosed in the invention, which comprises an illuminating and imaging system comprising an illumination light source 1, a projecting mirror 4 and a half transparent and half reflecting mirror 5 arranged sequentially along the direction of propagation of the illumination light, the respective optical axes O,O1 of the projecting mirror 4 and half transparent and half reflecting mirror 5 are collinear with each other, and the reflecting plane of the half transparent and half reflecting mirror 5 is at an angle of 45° relative to the illumination optical axis O,O1, wherein a condensing lens column 2 and a retinoscopy diaphragm 3 are disposed sequentially along the illumination optical axis O,O1, between the illumination light source 1 and the projecting mirror 4, the optical axis of the condensing lens column 2 is coincident with the illumination optical axis O,O1, and the plane of the retinoscopy diaphragm 3 is perpendicular to the illumination optical axis O,O1. The light energy can be utilized effectively in the retinoscope of the invention by arranging a condensing lens column 2 between the illumination light source 1 and the retinoscopy diaphragm 3, and the imaging of the strip light or spot light from the retinoscopy diaphragm 3 has more clear and uniform boundary. Furthermore, the retinoscope with such illumination and imaging system has compact configuration. Additionally, better color vision can be achieved if a colored light source is utilized, such as a red or green light source, thus, the imaging can be distinguished more easily by a user.
机译:本发明公开了一种用于检测眼屈光不正和散光轴的检影镜,其包括照明和成像系统,该照明和成像系统包括照明光源1,投影镜4和沿其传播方向顺序排列的半透明半反射镜5。照明光,投射镜4的光轴O,O1与半透明半反射镜5共线,并且半透明半反射镜5的反射面成45°角。相对于照明光轴O,O1,其中聚光镜柱2和检影镜3沿着照明光轴O,O1依次设置在照明光源1和投射镜4之间,该光轴聚光镜柱2与照明光轴O,O1重合,检影光阑3的平面垂直相对于照明光轴O,O1。通过在照明光源1和检影光阑3之间设置聚光镜柱2,可以在本发明的检影光镜中有效地利用光能,使来自检影光阑3的带状光或点光的成像更加清晰。和统一的边界。此外,具有这种照明和成像系统的检影镜具有紧凑的构造。另外,如果利用诸如红色或绿色光源之类的彩色光源,则可以实现更好的彩色视觉,因此,用户可以更容易地区分成像。

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