Eye imaging system, method and device

Abstract

An eye imaging system comprises an optical path control module, a light source module, a light sensing module (33), and a display module (34). The eye imaging system comprises multiple optical paths. One optical path is a path of a light ray generated by the light source module passing through the optical path control module and then proceeding to an eye (1). A returning light ray (1) reflected by the eye (1) passes through the optical path control module and then projects to the light sensing module (33) to be displayed on the display module (34). The eye imaging system achieves high-resolution imaging of a fundus lesion. The eye imaging system incorporates a technique of pupil positioning, and uses an LED light source to illuminate a pupil (11) of an eye to and acquires reflected light from the pupil (11) to determine an accurate operation distance.

Description

technical field [0001] The present invention relates to an imaging system, in particular to an eye imaging system, method and device. Background technique [0002] With the continuous advancement and development of science and technology, people pay more attention to the primary screening of eye diseases, especially the screening of fundus diseases such as diabetic retinopathy. Traditional eye imaging systems are bulky, difficult to carry, expensive and unpopular, cumbersome to operate, and difficult to apply to bedridden patients. They are gradually replaced by hand-held eye imaging systems. The design is simple, and there are imaging problems such as uneven illumination, inaccurate working distance, and defocus caused by chromatic aberration, especially the inaccurate working distance. During operation, images are often formed at the front and rear of the working distance, and the resolution of the obtained eye image cannot reach the best. Excellent effect; there is also ...

AI Technical Summary

Problems solved by technology

Traditional eye imaging systems are bulky, difficult to carry, expensive and unpopular, cumbersome to operate, and difficult to apply to bedridden patients. They are gradually replaced by hand-held eye imaging systems. The design is simple, and there are imaging problems such as uneven illumination, inaccurate working distance, and defocusing caused by chromatic aberration, especially the inaccurate working distance. During operation, the image is often formed at the front and rear of the working distance, and the resolution of the obtained eye image cannot reach the best. Excellent effect; there is also the elimination of chromatic aberration. The current solution is generally to use an achromatic lens in the optical design, which reduces the influence of chromatic aberration on imaging to a certain extent, but it is still impossible to achieve infrared and white light. High-definition imaging at the same working position

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