Title:
OPHTHALMIC IMAGING DIAGNOSTIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/076335
Kind Code:
A1
Abstract:
An ophthalmic imaging diagnostic system, comprising an eyepiece and an OCT imaging module. The OCT imaging module comprises a fundus OCT imaging mode and an anterior segment OCT imaging mode, wherein in the fundus OCT imaging mode, an OCT imaging module has a first intermediate image plane, and the first intermediate image plane is located between the eyepiece and the OCT imaging module; and a lens group is arranged in an internal optical path of the OCT imaging module in the fundus OCT imaging mode, the OCT imaging module has a second intermediate image plane, the second intermediate image plane is located in the OCT imaging module, and a conjugate position of an imaging optical path aperture diaphragm of the OCT imaging module is located between the eyepiece and the OCT imaging module so as to obtain the anterior segment OCT imaging mode. The ophthalmic imaging diagnostic system has a function of realizing both OCT fundus imaging and OCT anterior segment imaging, and realizes internal switching between the two. After switching from fundus imaging to anterior segment imaging, a second intermediate image is newly added to an OCT imaging module. The method enables the angle of incidence of light to an anterior segment to be controlled more flexibly, and a resolution index of a field of view of the anterior segment can be improved. Since switching is carried out inside an optical path of an OCT imaging module, no influence is generated on other system optical paths during the switching process.
Inventors:
WU HENG (CN)
PENG XIANZHAO (CN)
CHENG NANFAN (CN)
PENG XIANZHAO (CN)
CHENG NANFAN (CN)
Application Number:
PCT/CN2018/110791
Publication Date:
April 25, 2019
Filing Date:
October 18, 2018
Export Citation:
Assignee:
SVISION IMAGING LTD (CN)
International Classes:
A61B3/14
Foreign References:
| CN107582020A | 2018-01-16 | |||
| CN104337498A | 2015-02-11 | |||
| CN102438505A | 2012-05-02 | |||
| JP2012223428A | 2012-11-15 | |||
| US20080106696A1 | 2008-05-08 | |||
| US20110176111A1 | 2011-07-21 | |||
| US8427654B2 | 2013-04-23 | |||
| US20080106696A1 | 2008-05-08 | |||
| CN102438505A | 2012-05-02 |
Other References:
See also references of EP 3692892A4
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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