JP2012115575A5 - - Google Patents
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- JP2012115575A5 JP2012115575A5 JP2010269810A JP2010269810A JP2012115575A5 JP 2012115575 A5 JP2012115575 A5 JP 2012115575A5 JP 2010269810 A JP2010269810 A JP 2010269810A JP 2010269810 A JP2010269810 A JP 2010269810A JP 2012115575 A5 JP2012115575 A5 JP 2012115575A5
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- fundus
- light
- scanning
- optical system
- measurement light
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(1) 光源から発せられた少なくとも一部の光を測定光として被検者眼眼底上で走査させる光走査手段と、その反射光を含む光を受光する受光手段と、を有し、眼底画像を得るための眼底撮像光学系と、前記光走査手段によって走査される測定光の走査位置情報を取得し、取得された走査位置情報に基づいて,各走査位置における眼底画像のスキャン長のずれを補正する補正手段と、を備えることを特徴とする。
(2) 前記補正手段は、取得された走査位置情報に基づいて眼底に対する測定光の走査情報を補正し、補正された走査情報に基づいて前記光走査手段を制御し、前記受光手段からの受光信号に基づいて眼底画像を得ることを特徴とする(1)記載の眼底撮影装置。
(3) 前記眼底撮像光学系は、光源から発せられた光を測定光と参照光に分割し、測定光を眼底に導き,参照光束を参照光学系に導いた後、眼底で反射した測定光と参照光との干渉状態を前記受光手段により検出させることにより眼底断層像を得るための光干渉断層光学系であって、眼底に対する撮像範囲を任意に設定する設定手段を有し、前記補正手段は、前記設定手段によって設定された撮像範囲にて断層画像が取得されるように前記走査情報を補正することを特徴とする(2)記載の眼底撮影装置。
(1) a fundus image having an optical scanning unit that scans at least a part of light emitted from the light source on the fundus of the subject's eye as measurement light, and a light receiving unit that receives light including the reflected light. To obtain the scanning position information of the fundus imaging optical system and the measurement light scanned by the optical scanning means, and based on the acquired scanning position information, the shift of the scan length of the fundus image at each scanning position is obtained. Correction means for correcting.
(2) The correction unit corrects the scanning information of the measurement light with respect to the fundus based on the acquired scanning position information, controls the optical scanning unit based on the corrected scanning information, and receives light from the light receiving unit. The fundus imaging apparatus according to (1), wherein a fundus image is obtained based on the signal.
(3) The fundus imaging optical system divides the light emitted from the light source into measurement light and reference light, guides the measurement light to the fundus, guides the reference light flux to the reference optical system, and then reflects the measurement light reflected on the fundus And an optical coherence tomographic optical system for obtaining a tomographic image of the fundus oculi by causing the light receiving means to detect an interference state between the light source and the reference light, the setting means for arbitrarily setting an imaging range for the fundus The fundus imaging apparatus according to (2) , wherein the scanning information is corrected so that a tomographic image is acquired within an imaging range set by the setting unit.
Claims (3)
前記光走査手段によって走査される測定光の走査位置情報を取得し、取得された走査位置情報に基づいて,各走査位置における眼底画像のスキャン長のずれを補正する補正手段と、
を備えることを特徴とする眼底撮影装置。 In order to obtain a fundus image, comprising: an optical scanning unit that scans at least part of light emitted from the light source on the fundus of the subject's eye as measurement light; and a light receiving unit that receives light including the reflected light. The fundus imaging optical system of
Correction means for acquiring scan position information of measurement light scanned by the optical scanning means, and correcting a shift in scan length of the fundus image at each scan position based on the acquired scan position information;
A fundus photographing apparatus comprising:
眼底に対する撮像範囲を任意に設定する設定手段を有し、
前記補正手段は、前記設定手段によって設定された撮像範囲にて断層画像が取得されるように前記走査情報を補正することを特徴とする請求項2記載の眼底撮影装置。 The fundus imaging optical system divides the light emitted from the light source into measurement light and reference light, guides the measurement light to the fundus, guides the reference light flux to the reference optical system, and then reflects the measurement light and reference light reflected on the fundus An optical coherence tomographic optical system for obtaining a fundus tomogram by detecting the interference state with the light receiving means ,
Having setting means for arbitrarily setting an imaging range for the fundus;
The fundus imaging apparatus according to claim 2 , wherein the correction unit corrects the scanning information so that a tomographic image is acquired in an imaging range set by the setting unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010269810A JP5735789B2 (en) | 2010-12-02 | 2010-12-02 | Fundus photographing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010269810A JP5735789B2 (en) | 2010-12-02 | 2010-12-02 | Fundus photographing device |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2012115575A JP2012115575A (en) | 2012-06-21 |
JP2012115575A5 true JP2012115575A5 (en) | 2014-01-16 |
JP5735789B2 JP5735789B2 (en) | 2015-06-17 |
Family
ID=46499158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010269810A Active JP5735789B2 (en) | 2010-12-02 | 2010-12-02 | Fundus photographing device |
Country Status (1)
Country | Link |
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JP (1) | JP5735789B2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2509131B (en) * | 2012-12-21 | 2017-05-17 | Optos Plc | Improvements in and relating to ophthalmoscopes |
JP5937163B2 (en) | 2014-07-23 | 2016-06-22 | 国立大学法人東北大学 | Fundus analysis apparatus and fundus observation apparatus |
WO2016039188A1 (en) * | 2014-09-08 | 2016-03-17 | 国立大学法人東北大学 | Ocular fundus analyzing device and ocular fundus observation device |
JP2019058491A (en) * | 2017-09-27 | 2019-04-18 | 株式会社トプコン | Ophthalmological device |
JP2019154996A (en) | 2018-03-16 | 2019-09-19 | 株式会社トプコン | Ophthalmologic apparatus and ophthalmologic information processing apparatus |
JP7447619B2 (en) * | 2020-03-30 | 2024-03-12 | 株式会社ニデック | ophthalmology equipment |
JP7480553B2 (en) * | 2020-03-30 | 2024-05-10 | 株式会社ニデック | Ophthalmic Equipment |
JP7480552B2 (en) * | 2020-03-30 | 2024-05-10 | 株式会社ニデック | Ophthalmic device and axial length calculation program |
EP4276404A1 (en) | 2022-05-13 | 2023-11-15 | Optos PLC | Non-confocal point-scan fourier-domain optical coherence tomography imaging system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3369623B2 (en) * | 1993-03-16 | 2003-01-20 | 興和株式会社 | Laser scanning ophthalmic imaging device |
JP4822969B2 (en) * | 2006-07-27 | 2011-11-24 | 株式会社ニデック | Ophthalmic imaging equipment |
GB0622325D0 (en) * | 2006-11-09 | 2006-12-20 | Optos Plc | Improvements in or relating to retinal scanning |
JP4921201B2 (en) * | 2007-02-23 | 2012-04-25 | 株式会社トプコン | Optical image measurement device and program for controlling optical image measurement device |
JP5324839B2 (en) * | 2008-06-19 | 2013-10-23 | 株式会社トプコン | Optical image measuring device |
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2010
- 2010-12-02 JP JP2010269810A patent/JP5735789B2/en active Active
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