JP7301052B2 - 眼科撮影装置 - Google Patents
眼科撮影装置 Download PDFInfo
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- JP7301052B2 JP7301052B2 JP2020535847A JP2020535847A JP7301052B2 JP 7301052 B2 JP7301052 B2 JP 7301052B2 JP 2020535847 A JP2020535847 A JP 2020535847A JP 2020535847 A JP2020535847 A JP 2020535847A JP 7301052 B2 JP7301052 B2 JP 7301052B2
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- JP
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- eye
- image
- anterior segment
- subject
- pupil
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/11—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring interpupillary distance or diameter of pupils
- A61B3/112—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring interpupillary distance or diameter of pupils for measuring diameter of pupils
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
- A61B3/152—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for aligning
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Description
Claims (4)
- 被検者眼の前眼部を不可視光で照明する前眼部照明手段と、
少なくとも不可視光に感度を有しており、前記被検者眼を撮像する撮像素子と、
前記撮像素子の画像を処理する処理手段と、を備え、
前記処理手段は、
前記前眼部に投影される測距用の2つの指標の像がそれぞれ規定のガイド内に入ると、前記前眼部照明手段の不可視光による前記前眼部からの反射光によって前記撮像素子に写し出される画像を用いた前記被検者眼の瞳孔径の検知を開始し、
前記画像内において少なくとも前記被検者眼の虹彩と瞳孔との境界に対して交差する仮想のラインに沿って輝度値の走査を行い、前記輝度値の変化量から抽出された前記被検者眼の虹彩と瞳孔との境界点の位置から前記瞳孔径を検知する、
眼科撮影装置。 - 前記処理手段は、前記前眼部に投影される測距用の指標の像が、前記撮像素子に写し出される画像内で所定位置にあることを検知すると、前記前眼部照明手段の不可視光による前記前眼部からの反射光によって前記撮像素子に写し出される画像を用いた前記瞳孔径の検知を開始する、
請求項1に記載の眼科撮影装置。 - 前記眼科撮影装置は、前記撮像素子に結像する部位を前記被検者眼の眼底と前記前眼部との間で切り替える切替手段を更に備え、
前記処理手段は、前記瞳孔径の検知が完了すると、前記撮像素子に結像する部位を前記切替手段で前記前眼部から前記眼底へ切り替える、
請求項1または2に記載の眼科撮影装置。 - 前記処理手段は、複数の前記仮想のラインに沿って輝度値の走査を行い、複数の前記境界点の位置から前記瞳孔径を検知する、
請求項1から3の何れか一項に記載の眼科撮影装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018149401 | 2018-08-08 | ||
JP2018149401 | 2018-08-08 | ||
PCT/JP2019/031186 WO2020032128A1 (ja) | 2018-08-08 | 2019-08-07 | 眼科撮影装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020032128A1 JPWO2020032128A1 (ja) | 2021-08-10 |
JP7301052B2 true JP7301052B2 (ja) | 2023-06-30 |
Family
ID=69413503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020535847A Active JP7301052B2 (ja) | 2018-08-08 | 2019-08-07 | 眼科撮影装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210307604A1 (ja) |
EP (1) | EP3834708A4 (ja) |
JP (1) | JP7301052B2 (ja) |
CN (1) | CN112512403A (ja) |
WO (1) | WO2020032128A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7301052B2 (ja) * | 2018-08-08 | 2023-06-30 | 興和株式会社 | 眼科撮影装置 |
JP2022053081A (ja) * | 2020-09-24 | 2022-04-05 | 株式会社トプコン | 眼底カメラ及びその制御方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008066135A1 (en) | 2006-11-29 | 2008-06-05 | Nidek Co., Ltd. | Cornea surgery apparatus |
JP2010136781A (ja) | 2008-12-10 | 2010-06-24 | Kowa Co | 眼底撮影装置 |
JP2014094182A (ja) | 2012-11-09 | 2014-05-22 | Canon Inc | 眼科装置およびアライメント判定方法 |
JP2016055123A (ja) | 2014-09-12 | 2016-04-21 | 株式会社ニデック | 眼科撮影装置、眼科撮影システム、および眼科撮影プログラム |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5511575B2 (ja) | 1974-09-12 | 1980-03-26 | ||
JP4245738B2 (ja) | 1999-07-13 | 2009-04-02 | 興和株式会社 | 眼底カメラ |
JP4838459B2 (ja) * | 2001-09-17 | 2011-12-14 | キヤノン株式会社 | 眼科撮影装置 |
JP2003290145A (ja) | 2002-04-01 | 2003-10-14 | Canon Inc | 眼科撮影装置 |
JP5042784B2 (ja) * | 2007-11-08 | 2012-10-03 | 株式会社ニデック | 眼底カメラ |
JP5784056B2 (ja) | 2013-03-14 | 2015-09-24 | キヤノン株式会社 | 眼科装置及び眼科装置の制御方法 |
JP2016067766A (ja) * | 2014-09-30 | 2016-05-09 | 株式会社ニデック | 眼科撮影装置および眼科用撮影プログラム |
DE102016104417B4 (de) * | 2016-03-10 | 2019-10-31 | Johannes Junggeburth | Verfahren zum Bestimmen eines Durchmessers eine Pupille |
JP7301052B2 (ja) * | 2018-08-08 | 2023-06-30 | 興和株式会社 | 眼科撮影装置 |
-
2019
- 2019-08-07 JP JP2020535847A patent/JP7301052B2/ja active Active
- 2019-08-07 WO PCT/JP2019/031186 patent/WO2020032128A1/ja unknown
- 2019-08-07 EP EP19848180.6A patent/EP3834708A4/en active Pending
- 2019-08-07 CN CN201980052200.2A patent/CN112512403A/zh active Pending
- 2019-08-07 US US17/266,973 patent/US20210307604A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008066135A1 (en) | 2006-11-29 | 2008-06-05 | Nidek Co., Ltd. | Cornea surgery apparatus |
JP2010136781A (ja) | 2008-12-10 | 2010-06-24 | Kowa Co | 眼底撮影装置 |
JP2014094182A (ja) | 2012-11-09 | 2014-05-22 | Canon Inc | 眼科装置およびアライメント判定方法 |
JP2016055123A (ja) | 2014-09-12 | 2016-04-21 | 株式会社ニデック | 眼科撮影装置、眼科撮影システム、および眼科撮影プログラム |
Also Published As
Publication number | Publication date |
---|---|
EP3834708A4 (en) | 2022-04-20 |
WO2020032128A1 (ja) | 2020-02-13 |
JPWO2020032128A1 (ja) | 2021-08-10 |
EP3834708A1 (en) | 2021-06-16 |
CN112512403A (zh) | 2021-03-16 |
US20210307604A1 (en) | 2021-10-07 |
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