Human eye retina imaging system and method capable of carrying out layered imaging

A layered imaging and imaging system technology, applied in ophthalmoscopes, eye testing equipment, medical science, etc., can solve the problem of large stray light in imaging systems, and achieve strong adaptability, simple structure, and low cost

Active Publication Date: 2011-04-27
苏州六六视觉科技股份有限公司
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Problems solved by technology

[0003] In the existing retinal microscopic imaging system, a method for layered scanning and imaging of the retina is proposed in the Chinese invention patent application 200710021776.1. The above invention can perform layered scanning and imaging of the retina well, but it is used for The two objective lenses of the layered scanning are located in the illumination system and the imaging system at the same time, and the two objective lenses are not a single piece, but are composed of multiple lenses. The two objective lenses should be coated with high-transmittance anti-reflection coatings, otherwise Imaging systems can generate large amounts of stray light

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  • Human eye retina imaging system and method capable of carrying out layered imaging
  • Human eye retina imaging system and method capable of carrying out layered imaging

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Embodiment

[0029] Example: such as figure 1 As shown, a human eye retinal imaging system capable of layered imaging includes an illumination system and an imaging system, and the imaging system includes a wavefront sensor 316 for aberration measurement and a wavefront corrector for aberration correction 307, imaging CCD 314, and other necessary imaging optical components. The wavefront corrector 307 is a deformable mirror. The imaging system also includes a dioptric compensation lens 303, and the diopter compensation lens 303 adopts a standard prescription lens.

[0030] After being reflected by the first beam splitter 304, the parallel light beams from the illumination system converge on the retina 301 after passing through the diopter compensation mirror 303 and the eyeball 302 refractive system. Degree compensation mirror 303, first beam splitter mirror 304, first lens 305, and second lens 306 are transmitted to the wavefront corrector 307, and the wavefront corrector 307 corrects t...

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Abstract

The invention discloses a human eye retina imaging system capable of carrying out layered imaging, comprising an illuminating system and an imaging system, wherein the imaging system comprises a wave-front sensor (316), a wave-front corrector (307), an imaging CCD (Charge Coupled Device) (314) and an oxyopter compensating mirror (303), wherein the wave-front sensor (316) is used for aberration measurement; the wave-front corrector (307) is used for aberration correction; the imaging CCD (314) is arranged on a stepping motor (313) and can move front and back along the direction of an optical axis for focusing; and the imaging CCD (314) can focus on different layers of a retina (301) to realize the layered imaging under the independent working or the joint working of the stepping motor (313), the wave-front corrector (307) and the oxyopter compensating mirror (303). The invention also discloses a human eye retina layered imaging method. The invention has simple structure and can effectively carry out layered observation on retinal layers composing the retina (301).

Description

technical field [0001] The invention relates to a retinal microscopic imaging system, in particular to a system capable of layered imaging of the retina and a method for layered imaging of the retina of the human eye. Background technique [0002] The retinal structure is very complex, divided into inner limiting membrane, nerve fiber layer, ganglion cell layer, inner plexiform layer, inner granular layer, outer plexiform layer, outer granular layer, outer limiting membrane, cones, rod cell layer, Multiple layers of tissue such as the pigment epithelium, if each layer can be imaged separately, will provide a powerful tool for accurate diagnosis of fundus conditions. [0003] In the existing retinal microscopic imaging system, a method for layered scanning and imaging of the retina is proposed in the Chinese invention patent application 200710021776.1. The above invention can perform layered scanning and imaging of the retina well, but in actual use The two objective lenses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/14A61B3/12
Inventor 张运海沈建新
Owner 苏州六六视觉科技股份有限公司
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