Multispectral light source, fundal imaging system and fundal imaging method

Abstract

The invention provides a multispectral light source and a fundal imaging system and fundal imaging method, wherein the multispectral light source includes one or more lighting units and a control unit; each lighting unit includes a light-emitting diode matrix; each light-emitting diode matrix emits light of various wavelengths; the control unit converts a control command from a central control unit into a control signal to trigger the specified light-emitting matrix, in the specified lighting unit, to emit light of set wavelength and set energy, thus outputting multispectral light. The multispectral light source and the fundal imaging system and fundal imaging method have the advantages that multispectral light having the parameters, such as shape, wavelength, energy and flashing time, meet users' needs can be acquired herein, the multispectral light of good properties is provided for the fundal imaging system or other imaging and lighting systems, imaging capacity is improved, and images are more vivid.

Description

technical field [0001] The invention relates to the technical field of fundus imaging, in particular to a multispectral light source, a fundus imaging system and an imaging method. Background technique [0002] Generally, fundus imaging systems can use halogen lamps or xenon white light sources, light-emitting diodes or scanning lasers as light sources to obtain fundus retinal images. Current fundus camera pixel sensors use different filter techniques to split white light into the red, green and blue spectrum to capture images of the retina. [0003] Retinal imaging using xenon or other white light sources and red, green and blue image sensors can generate color images of the retina or anterior segment, but the power of xenon white light source illumination varies greatly at different wavelengths and has limitations. Separating xenon white light into multiple narrow-band spectra with a filter is a heavy task and difficult to achieve; at the same time, xenon illumination is ...

AI Technical Summary

Problems solved by technology

Scanning lasers can obtain very few discrete wavelengths, but lasers are expensive, bulky, and require a lot of internal space in the device, so laser scanning is not practical, and there is a great safety hazard to the eyes using lasers

[0004] Aiming at the above-mentioned problem that the performance of the existing light sources for fundus imaging is poor, resulting in relatively large limitations of fundus imaging, no effective solution has been proposed

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