Dynamic imager of living human eye retina

Abstract

The invention provides a dynamic imager of a living human eye retina. The imager comprises an illuminating system (25), an imaging system (26), a control device (27) and a self-adaption optical system (24), wherein the illuminating system (25) is used for providing optical radiation, the optical radiation is irradiated onto the retina along a first optical path and reflected to form imaging light, and the imaging light is propagated along a second optical path; the imaging system (26) is used for receiving the imaging light propagated along the second optical path so as to image a specific depth area of the retina; the control device (27) is used for generating a modulating signal and a synchronizing signal to control the illuminating system (25) and the imaging system (26) to ensure that the illuminating system (25) emits pulsed light, and the imaging system (26) synchronously carries out continuous imaging on the fundus of a tested person so as to directly acquire a real-time video or image sequence of the living human eye retina; and the self-adaption optical system (24) is used for correcting the human eye aberration and improving the resolution in real time. Compared with the prior art, the invention expands the functions, greatly improves the working efficiency and improves the effectiveness of the imager when in use.

Description

technical field [0001] The invention belongs to the technical field of human body imaging, and in particular relates to a device for continuous dynamic imaging of living human retina, in particular a living human retina imager for continuous dynamic imaging with high resolution. Background technique [0002] In addition to low-order aberrations such as defocus and astigmatism, human eye aberrations also contain non-negligible high-order aberration components; at the same time, human eye aberrations have the characteristics of individualization and gradual change. At present, commercialized ophthalmic equipment such as fundus cameras and refractometers can only statically compensate low-order human eye aberrations in addition to improving the optical design of the instrument itself, so the overall optical resolution cannot reach the diffraction-limited level. Adaptive optics technology just makes up for this defect and directly promotes the development of fundus imaging and o...

AI Technical Summary

Problems solved by technology

In contrast, although some imaging technologies based on point scanning principles have achieved dynamic fundus imaging (see the article "Adaptive optics scanning laser ophthalmoscopy", Austin Roorda et al., Opt.Express Vol.10No.9, 405-412, 2002), However, it is not as simple and intuitive as the imaging method, and the lateral resolution is inferior; and it contains moving parts, which reduces the reliability of long-term use; the confocal aperture has high requirements for position and alignment accuracy, and it is inconvenient to debug and maintain

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