Imaging optical system of binocular fundus camera

Abstract

The invention belongs to the technical fields of fundus micro-imaging and fundus three-dimensional reconstruction, and in particular relates to an imaging optical system of a binocular fundus camera.The imaging optical system comprises an omentum objective lens, a real image face, a semi-reflexive and semi-permeable mirror, a shared objective lens, a reflecting mirror group, imaging objective lenses, imaging chips and an illuminating device, wherein the included angle between the semi-reflexive and semi-permeable mirror and the principal optic axis is 45 degrees, the reflecting mirror group is composed of four light-reflecting mirrors, two imaging objective lenses and two imaging chips are arranged, one imaging objective lens and one imaging chip form an imaging group, the two imaging groups are parallel to each other, the light-reflecting mirror a2 at the uppermost position, as well as the imaging objective lens and the imaging chip in one imaging group are arranged on a first sub optical axis in sequence, the light-reflecting mirror b2 at the lowermost position as well as the imaging objective lens and the imaging chip in another imaging group are arranged on a second sub optical axis in sequence, and the included angle between the output light path of the illuminating device and the semi-reflexive and semi-permeable mirror is 45 degrees. With the imaging optical system of the binocular fundus camera, the problem that the existing monocular fundus camera can not acquire one group of images at the same time is solved.

Description

technical field [0001] The invention belongs to the technical field of fundus micro-imaging and fundus three-dimensional reconstruction, and in particular relates to an imaging optical system of a binocular fundus camera. Background technique [0002] 80% of the process that people obtain information from the outside world through sensory organs is completed through eyes. The structure of the human eye is delicate and complex, and the fundus is an important part of it. In the clinical examination, for eye diseases, first check the fundus to observe whether there are lesions, so as to correctly determine the cause. Fundus lesions are closely related to and interact with other systemic diseases throughout the body. Many diseases are manifested in the fundus. According to some characteristics of the fundus, it can assist other clinical disciplines to make a correct diagnosis. The early symptoms of other diseases appear in the eyes, and fundus examination can make these dise...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a binocular fundus camera imaging optical system to solve the problem that the existing monocular fundus camera cannot acquire a group of images at the same time

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