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Title:
COAXIAL NONMYDRIATIC MULTISPECTRAL OPHTHALMOSCOPE USING NEAR-INFRARED ILLUMINATION SOURCE AND VISIBLE LIGHT ILLUMINATION SOURCE
Document Type and Number:
WIPO Patent Application WO/2019/194570
Kind Code:
A1
Abstract:
The present invention relates to an ophthalmoscope, which is a type of diagnostic equipment for an eye examination, and a coaxial nonmydriatic multispectral ophthalmoscope using a near-infrared illumination source and a visible light illumination source, of the present invention, comprises: an illumination unit (10) for emitting light; a diffusing lens (20) for diffusing the light incident from the illumination unit (10); an illumination lens (30) for emitting, at a predetermined output angle, the light incident from the diffusing lens (20); a mirror (40) for reflecting the light incident from the illumination lens (30); a polarizing beam splitter (50) for transmitting P-polarized light therethrough and reflecting S-polarized light from the light incident from the mirror (40); an object lens (60) for illuminating the ocular fundus with the light incident from the polarizing beam splitter (50), and then magnifying a returning image of the ocular fundus; a near-distance eyepiece (70) for reducing or magnifying the image of the ocular fundus having been magnified by the object lens (60); and an image pickup device (100) for acquiring an optogram by using the image of the ocular fundus from the near-distance eyepiece (70), wherein the illumination unit (10) comprises: a near-infrared illumination source (11) capable of emitting near-infrared rays; a visible light illumination source (12) capable of emitting visible light; and a non-polarizing beam splitter (13) allowing the near-infrared rays emitted from the near-infrared illumination source (11) and the visible light emitted from the visible light illumination source (12) to be coaxially emitted.

Inventors:
KWON, Han Jo (508-1204, 8 Jwadongsunhwan-ro 217beon-gil,Haeundae-gu, Busan, 48076, KR)
PARK, Keun Heung (102-3403, 10 Jungang-daero 286beon-gil,Dong-gu, Busan, 48731, KR)
Application Number:
KR2019/003936
Publication Date:
October 10, 2019
Filing Date:
April 03, 2019
Export Citation:
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Assignee:
AIINSIGHT INC. (187 Gudeok-ro, Seo-gu, Busan, 49241, KR)
International Classes:
A61B3/14; A61B3/00; A61B5/00; G02B17/02; G02B27/14
Foreign References:
JP5631450B22014-11-26
KR20130099113A2013-09-05
JP2017512992A2017-05-25
JP5835264B22015-12-24
JP2015104581A2015-06-08
Attorney, Agent or Firm:
KIM, Jong Seok (904 48, Centum jungang-roHaeundae-gu, Busan, 48059, KR)
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