Full-eye optical coherence tomography device and method based on slit lamp platform
A technology of optical coherence tomography and imaging device, which is applied in the fields of diagnosis, ophthalmoscopy, medical science, etc. It can solve the problems of affecting the imaging quality, optical power attenuation, increasing the number of mirrors in the length of the optical path, etc., to expand the imaging range and enhance the image quality Effect
Pending Publication Date: 2018-12-18
ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV +1
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However, since the length of the reference arm of this scheme cannot be adjusted, an optical path adjustment mechanism with a complex design structure is added, resulting in an increase in the length of the optical path and a large number of mirrors in the optical path, which will cause the optical power of the system to attenuate and affect the imaging quality
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[0030] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.
[0031] like figure 1 As shown, a whole-eye optical coherence tomography imaging device based on a slit lamp platform, the imaging device includes a light source 1 capable of emitting laser light of a specific wavelength, a fiber coupling device 2, a reference arm, a sample arm, a spectrometer and a computer for image analysis . The light source 1 is connected to the fiber coupling device 2 through an optical fiber, the reference arm and the sample arm are respectively connected to the fiber coupling device 2 through an optical fiber, the light entrance of the spectrometer is connected to the fiber coupling device 2 through an optical fiber, and the spectrometer's The signal output terminal is connected wit...
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The invention discloses a full-eye optical coherence tomography device based on a slit lamp platform. The full-eye optical coherence tomography device comprises an OCT imaging system arranged on the slit lamp platform and a computer used for signal processing. The OCT imaging system comprises a light source, a sample arm for scanning an eyeball, and a reference arm for generating interference light together with the sample arm. The sample arm and the reference arm receive light sent out by the light source. The reference arm comprises a lens cylinder and a lens group arranged in the lens cylinder. The lens group comprises a one-dimensional galvanometer system and at least four switchable planar reflectors. The distances between the planar reflectors and the one-dimensional galvanometer system are different. By means of the device, by switching the different reflectors, the focusing depth is adjusted; in cooperation with image processing software installed on the computer, multiple images are spliced and enhanced, and therefore one-time scanning and eye front section and eye rear section three-dimensional imaging can be realized at the same time on the device.
Description
technical field [0001] The invention belongs to the field of optical imaging, in particular to an ophthalmic optical coherence tomography imaging device and imaging method based on a slit lamp platform. Background technique [0002] Statistics from the World Health Organization (WHO) show that ophthalmic diseases have become the third disease that endangers human health and quality of life after tumors and cardiovascular diseases in recent years. my country is the country with the largest number of blind and visually impaired patients in the world. Visual impairment seriously affects people's eye health and quality of life, and is a major public health and social problem involving people's livelihood. [0003] The eyeball is composed of a finely structured optical tissue and a microvascular system. With the rapid development of ophthalmic imaging technology in recent years, the advent and development of optical coherence tomography (OCT), a non-contact, non-invasive new oph...
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Login to View More IPC IPC(8): A61B3/10A61B3/135A61B3/14
CPCA61B3/0016A61B3/0041A61B3/102A61B3/135A61B3/14
Inventor 袁进刘奕志段铮昱
Owner ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV