A fundus imaging optical system
A technology of imaging optics and photoelectric imaging devices, which is applied in the field of optical applications, can solve the problems of small viewing area and achieve the effect of increasing the viewing area and high-precision imaging
Inactive Publication Date: 2018-11-30
GUANGDONG UNIV OF TECH
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Confocal microscopy uses pinholes for imaging processing, which can improve imaging accuracy, but has the disadvantage of a small field of view
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[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0033] A fundus imaging optical system provided by an embodiment of the present invention includes a light source unit, a polarizing element, a first small-hole array plate, a microlens array, a first lens, a second lens, a second small-hole array plate, and a photoelectric imaging device;
[0034] The polarizing element is used for pha...
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The invention discloses an eye ground imaging optical system. A polarization element is used for carrying out phase shifting transformation on light emitted by a light source part; the polarization element, a first micropore array plate and a microlens array are sequentially arranged along a light path, the microlens array comprises a plurality of microlenses arranged in the same plane, the microlenses are used for focusing passing light respectively, and a plurality of light beams different in spreading direction are formed. The first lens is used for gathering light emitted by the microlens array to the eye ground position; the first micropore array plate is used for generating light returned after the light generated by the eye ground position sequentially passes through the first lens and the microlens array, and the light is emitted into the polarization element; the second lens is used for gathering the returned light to a second micropore array plate through the light emitted by the polarization element; a photoelectronic imaging device is used for receiving the light passing through the second micropore array plate and achieving imaging. The eye ground imaging optical system can form an image of the same focusing plane at the eye ground position and can achieve high-precision imaging of the eye ground position, and the vision field range is widened.
Description
technical field [0001] The invention relates to the field of optical application technology, in particular to a fundus imaging optical system. Background technique [0002] Eye health is extremely important. Fundus examination is a common inspection method in eye health care and treatment. It can observe or image the image of the inside of the eye and the retina, observe the condition of the fundus, or track the lesion. [0003] In the prior art, equipment for fundus inspection includes a confocal microscope, which is a high-precision microscope. The confocal image obtained based on its imaging principle is an optical cross-sectional image of the sample. Multi-layer cross-sectional images are obtained by layered scanning. Three-dimensional imaging can be constructed from surface images. Confocal microscopy uses pinholes for imaging processing, which can improve imaging accuracy, but has the disadvantage of a small field of view. Contents of the invention [0004] The ob...
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IPC IPC(8): A61B3/12
CPCA61B3/1025A61B3/12
Inventor 邓宇陈惠雄郭钟宁
Owner GUANGDONG UNIV OF TECH