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High-speed optical interference chromatographic imaging apparats

A technology of optical interference and tomography, applied in the field of medical interference microscope imager, can solve the problems of limited application of confocal scanning microscope, difficult to achieve imaging, slow imaging speed, etc., to expand the scope of use and reduce the volume , the effect of speed increase

Inactive Publication Date: 2002-09-18
TIANJIN UNIV
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Problems solved by technology

[0003] However, so far, the existing OCT systems all have a major shortcoming: the imaging speed is too slow
However, these systems are slow in realizing microscanning tomography, especially in real-time imaging of the human body, because the vibration of arterial capillaries makes

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  • High-speed optical interference chromatographic imaging apparats

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0012] figure 1 Show the system structure diagram of this book. Among them: 1 is objective lens; 2 and 3 are reflecting mirrors; 4 is half-transparent mirror; 5 is collimating objective lens; 6 is laser light source; 7 is imaging objective lens; 8 is slit; 9 is magnifying objective lens; 10 is photoelectric Signal sensor; 11 is a data acquisition device; 12 is a computer.

[0013] The working principle of the present invention is as follows: the laser light source 6 is a laser in the near-infrared band, and the broadband light beam that it sends is expanded into a uniform, parallel light beam with a diameter of 1 millimeter to several millimeters through the collimating objective lens 5, and is split into Two paths of light beams: one path passes through the reflector 3, and then returns to the reflector 2, passes through the half-transparent ...

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Abstract

The present invention relates to a microscopic imaging instrument which is specially related to be interference microscopic imaging instrument being applied ti medicine to overcome low speed problem of imaging existed in present technology. The instrument applies cofocal structure in the system i.e. to place object to be imaged on the focal line of objective lens, to place photoelectric transducer on the focal line of imaging objective lens and the object lens carrying on one-dimensional scal along axial or radical direction; or to place object to be imaged at the focus of objective lens and to place hpotoelectric transducer at the focus of imaging objective lens.

Description

technical field [0001] The invention relates to a microscopic imager, in particular to a medical interference microscopic imager. Background technique [0002] Optical interference tomography (OCT, Optical Coherence Tomography) technology is the first medical imaging technology characterized by coherence. Its theoretical basis is the early white light interferometry, which originated from the optical coherence domain originally used for network fault detection. Reflection measurement technology (OCDR, Optical Coherence-Domain Reflectometry). OCDR was originally used to detect defects in fiber optic cables, but it was soon recognized that it has the ability to detect eyes and other biological tissues. The concept of OCT was first proposed in 1991. D.Huang and J.G.Fujimoto of the Massachusetts Institute of Technology successfully used OCT technology to image the fine structure of the human retina and the arterial wall. As an illustration of imaging ...

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Application Information

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IPC IPC(8): A61B5/00G01N21/45G02B21/00
Inventor 李刚林凌虞启琏于学敏
Owner TIANJIN UNIV
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