Line scanning confocal ophthalmoscope system on basis of adaptive optics

Abstract

The invention provides a line scanning confocal ophthalmoscope system on the basis of adaptive optics. The line scanning confocal ophthalmoscope system mainly comprises a line beam generating module, a beam splitting module, a scanning module, an imaging module, an output module and a wave-front detecting and correcting module. Beams emitted by a beacon are collimated and expanded by a collimating lens to form parallel beams, the parallel beams sequentially pass through a beam splitter, a first beam shrinkage and expansion component group, a wave-front corrector and a second beam shrinkage and expansion component group, then are emergent from the wave-front detecting and correcting module, are propagated by the scanning module and enter a human eye, after entering the human eye and being reflected by the retina of the human eye, light which carries aberration information of the human eye returns along an original path, is deflected and reflected by the beam splitting module, is reflected by the beam splitter and enters a wave-front detector via a third beam shrinkage and expansion component group, the wave-front detector transmits the received aberration information of the human eye to a wave-front processor, the wave-front processor generates control voltage for controlling the wave-front corrector and transmits the control voltage to the wave-front corrector, aberration of the human eye is corrected in real time, and the resolution and the contrast of a formed image are improved.

Description

technical field [0001] The invention relates to the technical field of adaptive wavefront detection and correction, and belongs to the technical field of human eye retina imaging medical equipment manufacturing, in particular to a line-scanning confocal ophthalmoscope system based on adaptive optics. Background technique [0002] In the Chinese patent "A system and method for a line-scanning confocal ophthalmoscope" authorization number ZL201010595574.X, a laser confocal ophthalmoscope system based on line scanning is introduced, including a line beam generating module, a beam splitting module, a scanning module, The imaging module and the output module, the line scanning confocal ophthalmoscope scans the line beam in one-dimensional space to illuminate the fundus retina, and uses the line detector to image the non-scanning line beam reflected from the fundus retina. The system only uses a scanning galvanometer and A line detector with a small number of moving parts; at the ...

AI Technical Summary

Problems solved by technology

However, as an important part of the ophthalmoscope optical system, the human eye itself is not a perfect optical system, which brings various aberrations to the imaging system, seriously reduces the imaging quality, and makes the image resolution obtained by the actual system often low. Therefore, it is difficult to observe the fine structure of the living human retina

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