Multi-color light scanning eye ground imaging device

Abstract

The invention discloses a multi-color light scanning eye ground imaging device. The multi-color light scanning eye ground imaging device include a control module, a single-color light beam generation device, a light path reflection unit, a scanning unit, a collecting lens, an imaging lens, and an imaging unit; the single-color light beam generation device generates at least two different types of single-color light beams; the single-color light beams periodically and alternatively enter the light path reflection unit under the control of the control module, are reflected to the scanning unit through the light path reflection unit, and then enter human eyes through the collecting lens; the scanning unit uses the single-color light beams to scan an eye ground, and the single-color light beams carrying with eye ground information returns from the eye ground and finally form an image on the imaging unit; the control module controls the imaging unit to acquire eye images obtained in different scanning modes, the eye images are processed to obtain different grey images, and the grey images facilitate eye ground examination of patients having disease zones which can be distinguished through reflect light colors; and meanwhile, the obtained the eye ground images scanned by different single-color light beams are synthesized into the multi-color eye ground image.

Description

technical field [0001] The present invention relates to the field of ophthalmic imaging equipment, in particular to using a variety of monochromatic line beams to scan the fundus to obtain different fundus images, and to obtain different grayscale images after processing, and to use the grayscale images to detect certain human eyes. A technical field of a lesion at a site. Background technique [0002] At present, the fundus camera can be used for fundus white light imaging in ophthalmic equipment, but the fundus camera has defects such as insufficient imaging clarity, which is not conducive to the diagnosis of subtle diseases, while the line scan imaging system has higher imaging resolution, imaging contrast and imaging quality. However, the light source of the current line scan imaging system usually uses a near-infrared light source. Compared with the white light source in the fundus camera, its grayscale image is not conducive to the fundus examination of some patients ...

AI Technical Summary

Problems solved by technology

[0002] At present, the fundus camera can be used for fundus white light imaging in ophthalmic equipment, but the fundus camera has defects such as insufficient imaging clarity, which is not conducive to the diagnosis of subtle diseases, while the line scan imaging system has higher imaging resolution, imaging contrast and imaging quality

However, the light source of the current line scan imaging system usually uses a near-infrared light source. Compared with the white light source in the fundus camera, its grayscale image is not conducive to the fundus examination of some patients who can distinguish the diseased area by the reflective color. This is because , the human eye tissue has different absorption capabilities for different monochromatic line light sources

Therefore, fundus cameras and line scan imaging systems each have their own advantages and disadvantages, and cannot meet the needs of patients' eye detection

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