Measuring arm of optical coherent tomographic eye examining instrument used together with slit lamp

A technology of optical coherence tomography and ophthalmic examination, applied in the field of measuring arm, can solve the problems of no conventional slit lamp, no glaucoma disease examination, no inspection of eye angle, etc., and achieve the effect of simple structure

Inactive Publication Date: 2002-05-15
TSINGHUA UNIV
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Problems solved by technology

[0003] The existing OCT eye examination instrument in foreign countries is very expensive, but it works very well, but it still has the following disadvantages: it does not have the function of a conventional slit lamp, so two instruments must be used; in addition, the incidence of glaucoma in Orientals is much higher than that in Westerners. , foreign products do not have the function of checking the angle of the eye, that is to say, the disease of glaucoma cannot be checked

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  • Measuring arm of optical coherent tomographic eye examining instrument used together with slit lamp
  • Measuring arm of optical coherent tomographic eye examining instrument used together with slit lamp
  • Measuring arm of optical coherent tomographic eye examining instrument used together with slit lamp

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Embodiment Construction

[0012] Such as figure 1 As shown, the measuring arm of the optical coherence tomography ophthalmic examination instrument combined with a slit lamp designed by the present invention includes a slit lamp system, which consists of a white light source 3, a condenser lens 4, a filter plate 5, a lens 7, a slit 8, Composed of an objective lens 9, a telescope 10 and a reflector 11, the measuring arm also includes a fiber collimator 1, a scanning galvanometer 2, and a dichroic mirror 6. The incandescent light emitted by the white light source 3 passes through the slit 8 after passing through the condenser lens 4 and the lens 7, and is imaged on the human eye 13 after passing through the objective lens 9 and the reflector 11, and the eyes are illuminated. Observed. The parallel beam of infrared light emitted by the fiber collimator 1 is reflected by the scanning vibrating mirror 2 and then reflected by the dichroic mirror 6, and is incident on the lens 7. The parallel beam is gathere...

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Abstract

The present invention relates to measuring arm of eye axamination apparatus using slip lamp inlegrated optical correlation cromatography, it includes slip lamp system, optical fiber collimator, scan mirror, two colour lens and reflector, the white light emitted from white light source passes through collector lens and lens and narrow seam, then form image on eye through objective and reflector, then make observation to eye through telescope. The measuring arm designed by present invention not only is simple in structure but also ensures the maximum scanning range under same resolution condition or possesses maximum resolution under same scanning range.

Description

technical field [0001] The invention relates to a measuring arm of an optical coherence tomography ophthalmic examination instrument combined with a slit lamp, belonging to the field of medical examination instruments. Background technique [0002] The importance of eye disease examination is well known. The conventional ophthalmic examination instrument is a slit lamp, but the slit lamp can only image the surface of the fundus, and cannot do anything deep into the opaque area of ​​the fundus. Optical coherence tomography (OCT) developed in the past ten years can image the interior of opaque media, and its resolution is much higher than that of X-ray scanning imaging and ultrasonic scanning imaging, so it will soon For the examination of eye diseases. Since X-rays cannot be used for eye examinations due to their damage to the eyes, the OCT ophthalmic examination instrument can be compared with the ultrasonic CT ophthalmic examination instrument: in terms of resolution, the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/10A61B3/117A61B3/12
Inventor 薛平郭继华许小楠高湔松
Owner TSINGHUA UNIV
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